From f8ede7fb4a26394b842fd74ee0bc06a0a0b923c1 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 15:33:16 -0700
Subject: [PATCH 01/36] Add stub specs for some generic nodes

* Still more nodes to add, but I wanted to take a break but didn't
  want to wait to add these.
---
 .../mutator/node/and_asgn/mutation_spec.rb    | 24 +++++++++++++++++++
 .../mutator/node/break/mutation_spec.rb       | 13 ++++++++++
 .../node/defined_predicate/mutation_spec.rb   |  8 +++++++
 .../mutant/mutator/node/dstr/mutation_spec.rb | 19 +++++++++++++++
 .../mutant/mutator/node/dsym/mutation_spec.rb | 19 +++++++++++++++
 .../mutator/node/ensure/mutation_spec.rb      | 18 ++++++++++++++
 .../node/match_current_line/mutation_spec.rb  | 18 ++++++++++++++
 .../mutant/mutator/node/next/mutation_spec.rb |  8 +++++++
 .../mutator/node/op_assgn/mutation_spec.rb    | 24 +++++++++++++++++++
 .../mutator/node/or_asgn/mutation_spec.rb     | 24 +++++++++++++++++++
 .../mutant/mutator/node/redo/mutation_spec.rb |  8 +++++++
 .../mutator/node/rescue/mutation_spec.rb      | 18 ++++++++++++++
 .../mutator/node/restarg/mutation_spec.rb     | 14 +++++++++++
 .../mutator/node/yield/mutation_spec.rb       | 13 ++++++++++
 14 files changed, 228 insertions(+)
 create mode 100644 spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/break/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/dstr/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/dsym/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/next/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/redo/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/restarg/mutation_spec.rb
 create mode 100644 spec/unit/mutant/mutator/node/yield/mutation_spec.rb

diff --git a/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb
new file mode 100644
index 00000000..d10b7942
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'and_asgn' do
+  let(:random_fixnum) { 5        }
+  let(:random_string) { 'random' }
+
+  let(:source)  { 'a &&= 1' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << 'srandom &&= 1'
+    mutations << 'a &&= nil'
+    mutations << 'a &&= 0'
+    mutations << 'a &&= -1'
+    mutations << 'a &&= 2'
+    mutations << 'a &&= 5'
+  end
+
+  before do
+    Mutant::Random.stub(:fixnum => random_fixnum, :hex_string => random_string)
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/break/mutation_spec.rb b/spec/unit/mutant/mutator/node/break/mutation_spec.rb
new file mode 100644
index 00000000..66b001a1
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/break/mutation_spec.rb
@@ -0,0 +1,13 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'break' do
+  let(:source)    { 'break true' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << 'break false'
+    mutations << 'break nil'
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb b/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb
new file mode 100644
index 00000000..e74bb23e
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'defined?' do
+  let(:source)    { 'defined?(foo)' }
+  let(:mutations) { []              }
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb b/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb
new file mode 100644
index 00000000..6f2db551
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb
@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'dstr' do
+  before do
+    Mutant::Random.stub(:hex_string => 'random')
+  end
+
+  let(:source)  { '"foo#{bar}baz"' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << '"random#{bar}baz"'
+    mutations << '"#{nil}#{bar}baz"'
+    mutations << '"foo#{bar}random"'
+    mutations << '"foo#{bar}#{nil}"'
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb b/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb
new file mode 100644
index 00000000..d059f4cb
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb
@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'dsum' do
+  before do
+    Mutant::Random.stub(:hex_string => 'random')
+  end
+
+  let(:source)  { ':"foo#{bar}baz"' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << ':"random#{bar}baz"'
+    mutations << ':"#{nil}#{bar}baz"'
+    mutations << ':"foo#{bar}random"'
+    mutations << ':"foo#{bar}#{nil}"'
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb b/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
new file mode 100644
index 00000000..0a633170
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'ensure' do
+  let(:source)    { 'begin; rescue; ensure; end' }
+  let(:mutations) { []                           }
+
+  # TODO: remove once unparser is fixed
+  it 'does not raise an exception when unparsing source' do
+    pending 'unparser bug' do
+      expect { Unparser.unparse(Parser::CurrentRuby.parse(source)) }
+        .to_not raise_error
+    end
+  end
+
+  pending 'unparser bug' do
+    it_should_behave_like 'a mutator'
+  end
+end
diff --git a/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb b/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb
new file mode 100644
index 00000000..09f65e2d
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'match_current_line' do
+  let(:source) { 'true if //' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << 'false if //'
+    mutations << 'nil if //'
+    mutations << 'true if true'
+    mutations << 'true if false'
+    mutations << 'true if nil'
+    mutations << 'true if !//'
+    mutations << 'true if /a\A/'
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/next/mutation_spec.rb b/spec/unit/mutant/mutator/node/next/mutation_spec.rb
new file mode 100644
index 00000000..b35506f8
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/next/mutation_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'next' do
+  let(:source)    { 'next true' }
+  let(:mutations) { []          }
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb
new file mode 100644
index 00000000..dcff8e81
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'op_asgn' do
+  let(:random_fixnum) { 5 }
+
+  let(:source)  { '@a.b += 1' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << '@a.b += -1'
+    mutations << '@a.b += 2'
+    mutations << '@a.b += 0'
+    mutations << '@a.b += nil'
+    mutations << '@a += 1'
+    mutations << '@a.b += 5'
+    mutations << 'nil.b += 1'
+  end
+
+  before do
+    Mutant::Random.stub(:fixnum => random_fixnum)
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb
new file mode 100644
index 00000000..2c5b896b
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'or_asgn' do
+  let(:random_fixnum) { 5        }
+  let(:random_string) { 'random' }
+
+  let(:source)  { 'a ||= 1' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << 'srandom ||= 1'
+    mutations << 'a ||= nil'
+    mutations << 'a ||= 0'
+    mutations << 'a ||= -1'
+    mutations << 'a ||= 2'
+    mutations << 'a ||= 5'
+  end
+
+  before do
+    Mutant::Random.stub(:fixnum => random_fixnum, :hex_string => random_string)
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/redo/mutation_spec.rb b/spec/unit/mutant/mutator/node/redo/mutation_spec.rb
new file mode 100644
index 00000000..01deab52
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/redo/mutation_spec.rb
@@ -0,0 +1,8 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'redo' do
+  let(:source)    { 'redo' }
+  let(:mutations) { []     }
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
new file mode 100644
index 00000000..e99b4576
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'rescue' do
+  let(:source)    { 'begin; rescue Exception => e; end' }
+  let(:mutations) { []                                  }
+
+  # TODO: remove once unparser is fixed
+  it 'does not raise an exception when unparsing source' do
+    pending 'unparser bug' do
+      expect { Unparser.unparse(Parser::CurrentRuby.parse(source)) }
+        .to_not raise_error
+    end
+  end
+
+  pending 'unparser bug' do
+    it_should_behave_like 'a mutator'
+  end
+end
diff --git a/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb b/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb
new file mode 100644
index 00000000..2ded7de0
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb
@@ -0,0 +1,14 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'restarg' do
+  let(:source) { 'foo(*bar)' }
+
+  let(:mutations) do
+    mutants = []
+    mutants << 'foo'
+    mutants << 'foo(nil)'
+    mutants << 'foo(bar)'
+  end
+
+  it_should_behave_like 'a mutator'
+end
diff --git a/spec/unit/mutant/mutator/node/yield/mutation_spec.rb b/spec/unit/mutant/mutator/node/yield/mutation_spec.rb
new file mode 100644
index 00000000..6d6eda68
--- /dev/null
+++ b/spec/unit/mutant/mutator/node/yield/mutation_spec.rb
@@ -0,0 +1,13 @@
+require 'spec_helper'
+
+describe Mutant::Mutator::Node::Generic, 'yield' do
+  let(:source)  { 'yield true' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << 'yield false'
+    mutations << 'yield nil'
+  end
+
+  it_should_behave_like 'a mutator'
+end

From 1a329b63e8db81d68b94e603314ece6fca56034b Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 15:44:26 -0700
Subject: [PATCH 02/36] Add coveralls to mutant

---
 spec/spec_helper.rb | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 9a147158..ca215b0a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,6 +1,27 @@
+# encoding: utf-8
+
+require 'equalizer'
+require 'devtools/spec_helper'
+
+if ENV['COVERAGE'] == 'true'
+  require 'simplecov'
+  require 'coveralls'
+
+  SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter[
+    SimpleCov::Formatter::HTMLFormatter,
+    Coveralls::SimpleCov::Formatter
+ ]
+
+  SimpleCov.start do
+    command_name     'spec:unit'
+    add_filter       'config'
+    add_filter       'spec'
+    add_filter       'test_app'
+    minimum_coverage 88.74  # TODO: raise this to 100, then mutation test
+  end
+end
+
 require 'mutant'
-require 'devtools'
-Devtools.init_spec_helper
 
 $LOAD_PATH << File.join(TestApp.root, 'lib')
 

From 7293386c26a675164ed31348b8d1e000fd1d9519 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 16:03:06 -0700
Subject: [PATCH 03/36] Add magic encoding header to all ruby files

* rubocop still warns about this on ruby 1.9.3, so it was fixed so
  it produces less output on travis.
---
 lib/mutant.rb                                                   | 2 ++
 lib/mutant/cache.rb                                             | 2 ++
 lib/mutant/cli.rb                                               | 2 ++
 lib/mutant/cli/classifier.rb                                    | 2 ++
 lib/mutant/cli/classifier/method.rb                             | 2 ++
 lib/mutant/cli/classifier/namespace.rb                          | 2 ++
 lib/mutant/cli/classifier/scope.rb                              | 2 ++
 lib/mutant/color.rb                                             | 2 ++
 lib/mutant/config.rb                                            | 2 ++
 lib/mutant/constants.rb                                         | 2 ++
 lib/mutant/context.rb                                           | 2 ++
 lib/mutant/context/scope.rb                                     | 2 ++
 lib/mutant/differ.rb                                            | 2 ++
 lib/mutant/killer.rb                                            | 2 ++
 lib/mutant/killer/forked.rb                                     | 2 ++
 lib/mutant/killer/forking.rb                                    | 2 ++
 lib/mutant/killer/rspec.rb                                      | 2 ++
 lib/mutant/killer/static.rb                                     | 2 ++
 lib/mutant/loader.rb                                            | 2 ++
 lib/mutant/matcher.rb                                           | 2 ++
 lib/mutant/matcher/chain.rb                                     | 2 ++
 lib/mutant/matcher/method.rb                                    | 2 ++
 lib/mutant/matcher/method/finder.rb                             | 2 ++
 lib/mutant/matcher/method/instance.rb                           | 2 ++
 lib/mutant/matcher/method/singleton.rb                          | 2 ++
 lib/mutant/matcher/methods.rb                                   | 2 ++
 lib/mutant/matcher/namespace.rb                                 | 2 ++
 lib/mutant/matcher/scope.rb                                     | 2 ++
 lib/mutant/mutation.rb                                          | 2 ++
 lib/mutant/mutation/evil.rb                                     | 2 ++
 lib/mutant/mutation/filter.rb                                   | 2 ++
 lib/mutant/mutation/filter/code.rb                              | 2 ++
 lib/mutant/mutation/filter/regexp.rb                            | 2 ++
 lib/mutant/mutation/filter/whitelist.rb                         | 2 ++
 lib/mutant/mutation/neutral.rb                                  | 2 ++
 lib/mutant/mutator.rb                                           | 2 ++
 lib/mutant/mutator/node.rb                                      | 2 ++
 lib/mutant/mutator/node/argument.rb                             | 2 ++
 lib/mutant/mutator/node/arguments.rb                            | 2 ++
 lib/mutant/mutator/node/begin.rb                                | 2 ++
 lib/mutant/mutator/node/block.rb                                | 2 ++
 lib/mutant/mutator/node/case.rb                                 | 2 ++
 lib/mutant/mutator/node/connective/binary.rb                    | 2 ++
 lib/mutant/mutator/node/const.rb                                | 2 ++
 lib/mutant/mutator/node/define.rb                               | 2 ++
 lib/mutant/mutator/node/generic.rb                              | 2 ++
 lib/mutant/mutator/node/if.rb                                   | 2 ++
 lib/mutant/mutator/node/literal.rb                              | 2 ++
 lib/mutant/mutator/node/literal/array.rb                        | 2 ++
 lib/mutant/mutator/node/literal/boolean.rb                      | 2 ++
 lib/mutant/mutator/node/literal/dynamic.rb                      | 2 ++
 lib/mutant/mutator/node/literal/fixnum.rb                       | 2 ++
 lib/mutant/mutator/node/literal/float.rb                        | 2 ++
 lib/mutant/mutator/node/literal/hash.rb                         | 2 ++
 lib/mutant/mutator/node/literal/nil.rb                          | 2 ++
 lib/mutant/mutator/node/literal/range.rb                        | 2 ++
 lib/mutant/mutator/node/literal/regex.rb                        | 2 ++
 lib/mutant/mutator/node/literal/string.rb                       | 2 ++
 lib/mutant/mutator/node/literal/symbol.rb                       | 2 ++
 lib/mutant/mutator/node/masgn.rb                                | 2 ++
 lib/mutant/mutator/node/mlhs.rb                                 | 2 ++
 lib/mutant/mutator/node/named_value/access.rb                   | 2 ++
 lib/mutant/mutator/node/named_value/constant_assignment.rb      | 2 ++
 lib/mutant/mutator/node/named_value/variable_assignment.rb      | 2 ++
 lib/mutant/mutator/node/noop.rb                                 | 2 ++
 lib/mutant/mutator/node/return.rb                               | 2 ++
 lib/mutant/mutator/node/send.rb                                 | 2 ++
 lib/mutant/mutator/node/send/binary.rb                          | 2 ++
 lib/mutant/mutator/node/splat.rb                                | 2 ++
 lib/mutant/mutator/node/super.rb                                | 2 ++
 lib/mutant/mutator/node/when.rb                                 | 2 ++
 lib/mutant/mutator/node/while.rb                                | 2 ++
 lib/mutant/mutator/node/zsuper.rb                               | 2 ++
 lib/mutant/mutator/registry.rb                                  | 2 ++
 lib/mutant/mutator/util.rb                                      | 2 ++
 lib/mutant/mutator/util/array.rb                                | 2 ++
 lib/mutant/mutator/util/symbol.rb                               | 2 ++
 lib/mutant/node_helpers.rb                                      | 2 ++
 lib/mutant/random.rb                                            | 2 ++
 lib/mutant/reporter.rb                                          | 2 ++
 lib/mutant/reporter/cli.rb                                      | 2 ++
 lib/mutant/reporter/cli/printer.rb                              | 2 ++
 lib/mutant/reporter/cli/printer/config.rb                       | 2 ++
 lib/mutant/reporter/cli/printer/killer.rb                       | 2 ++
 lib/mutant/reporter/cli/printer/mutation.rb                     | 2 ++
 lib/mutant/reporter/cli/printer/subject.rb                      | 2 ++
 lib/mutant/reporter/null.rb                                     | 2 ++
 lib/mutant/runner.rb                                            | 2 ++
 lib/mutant/runner/config.rb                                     | 2 ++
 lib/mutant/runner/mutation.rb                                   | 2 ++
 lib/mutant/runner/subject.rb                                    | 2 ++
 lib/mutant/singleton_methods.rb                                 | 2 ++
 lib/mutant/strategy.rb                                          | 2 ++
 lib/mutant/strategy/method_expansion.rb                         | 2 ++
 lib/mutant/strategy/rspec.rb                                    | 2 ++
 lib/mutant/strategy/rspec/dm2.rb                                | 2 ++
 lib/mutant/strategy/rspec/dm2/lookup.rb                         | 2 ++
 lib/mutant/strategy/rspec/dm2/lookup/method.rb                  | 2 ++
 lib/mutant/strategy/static.rb                                   | 2 ++
 lib/mutant/subject.rb                                           | 2 ++
 lib/mutant/subject/method.rb                                    | 2 ++
 lib/mutant/subject/method/instance.rb                           | 2 ++
 lib/mutant/subject/method/singleton.rb                          | 2 ++
 lib/mutant/support/method_object.rb                             | 2 ++
 lib/mutant/zombifier.rb                                         | 2 ++
 spec/integration/mutant/rspec_killer_spec.rb                    | 2 ++
 spec/integration/mutant/test_mutator_handles_types_spec.rb      | 2 ++
 spec/integration/mutant/zombie_spec.rb                          | 2 ++
 spec/shared/method_matcher_behavior.rb                          | 2 ++
 spec/shared/mutator_behavior.rb                                 | 2 ++
 spec/support/compress_helper.rb                                 | 2 ++
 spec/support/ice_nine_config.rb                                 | 2 ++
 spec/support/rspec.rb                                           | 2 ++
 spec/support/test_app.rb                                        | 2 ++
 .../mutant/class_methods/singleton_subclass_instance_spec.rb    | 2 ++
 spec/unit/mutant/cli/class_methods/new_spec.rb                  | 2 ++
 spec/unit/mutant/cli/class_methods/run_spec.rb                  | 2 ++
 spec/unit/mutant/cli/classifier/class_methods/build_spec.rb     | 2 ++
 spec/unit/mutant/context/root_spec.rb                           | 2 ++
 spec/unit/mutant/context/scope/root_spec.rb                     | 2 ++
 spec/unit/mutant/context/scope/unqualified_name_spec.rb         | 2 ++
 spec/unit/mutant/differ/class_methods/build_spec.rb             | 2 ++
 spec/unit/mutant/differ/class_methods/colorize_line_spec.rb     | 2 ++
 spec/unit/mutant/differ/diff_spec.rb                            | 2 ++
 spec/unit/mutant/killer/rspec/class_methods/new_spec.rb         | 2 ++
 spec/unit/mutant/killer/success_predicate_spec.rb               | 2 ++
 spec/unit/mutant/loader/eval/class_methods/run_spec.rb          | 2 ++
 spec/unit/mutant/matcher/chain/each_spec.rb                     | 2 ++
 spec/unit/mutant/matcher/chain/matchers_spec.rb                 | 2 ++
 spec/unit/mutant/matcher/each_spec.rb                           | 2 ++
 .../mutant/matcher/method/instance/class_methods/build_spec.rb  | 2 ++
 spec/unit/mutant/matcher/method/instance/each_spec.rb           | 2 ++
 spec/unit/mutant/matcher/method/singleton/each_spec.rb          | 2 ++
 spec/unit/mutant/matcher/methods/instance/each_spec.rb          | 2 ++
 spec/unit/mutant/matcher/methods/singleton/each_spec.rb         | 2 ++
 spec/unit/mutant/matcher/namespace/each_spec.rb                 | 2 ++
 spec/unit/mutant/mutator/each_spec.rb                           | 2 ++
 spec/unit/mutant/mutator/emit_new_spec.rb                       | 2 ++
 spec/unit/mutant/mutator/emit_spec.rb                           | 2 ++
 spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb         | 2 ++
 spec/unit/mutant/mutator/node/begin/mutation_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/block/mutation_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb       | 2 ++
 spec/unit/mutant/mutator/node/break/mutation_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/case/mutation_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/cbase/mutation_spec.rb            | 2 ++
 .../unit/mutant/mutator/node/connective/binary/mutation_spec.rb | 2 ++
 spec/unit/mutant/mutator/node/const/mutation_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/define/mutation_spec.rb           | 2 ++
 .../unit/mutant/mutator/node/defined_predicate/mutation_spec.rb | 2 ++
 spec/unit/mutant/mutator/node/dstr/mutation_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/dsym/mutation_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/ensure/mutation_spec.rb           | 2 ++
 spec/unit/mutant/mutator/node/if/mutation_spec.rb               | 2 ++
 spec/unit/mutant/mutator/node/literal/array_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/literal/boolean/mutation_spec.rb  | 2 ++
 spec/unit/mutant/mutator/node/literal/fixnum_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/literal/float_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/literal/hash_spec.rb              | 2 ++
 spec/unit/mutant/mutator/node/literal/nil_spec.rb               | 2 ++
 spec/unit/mutant/mutator/node/literal/range_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/literal/regex_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/literal/string_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/literal/symbol_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/masgn/mutation_spec.rb            | 2 ++
 .../mutant/mutator/node/match_current_line/mutation_spec.rb     | 2 ++
 .../mutant/mutator/node/named_value/access/mutation_spec.rb     | 2 ++
 .../node/named_value/constant_assignment/mutation_spec.rb       | 2 ++
 .../node/named_value/variable_assignment/mutation_spec.rb       | 2 ++
 spec/unit/mutant/mutator/node/next/mutation_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb         | 2 ++
 spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb          | 2 ++
 spec/unit/mutant/mutator/node/redo/mutation_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/rescue/mutation_spec.rb           | 2 ++
 spec/unit/mutant/mutator/node/restarg/mutation_spec.rb          | 2 ++
 spec/unit/mutant/mutator/node/return/mutation_spec.rb           | 2 ++
 spec/unit/mutant/mutator/node/send/mutation_spec.rb             | 2 ++
 spec/unit/mutant/mutator/node/super/mutation_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/while/mutation_spec.rb            | 2 ++
 spec/unit/mutant/mutator/node/yield/mutation_spec.rb            | 2 ++
 spec/unit/mutant/node_helpers/n_not_spec.rb                     | 2 ++
 spec/unit/mutant/runner/config/subjects_spec.rb                 | 2 ++
 spec/unit/mutant/runner/config/success_predicate_spec.rb        | 2 ++
 spec/unit/mutant/runner/mutation/killer_spec.rb                 | 2 ++
 spec/unit/mutant/runner/subject/success_predicate_spec.rb       | 2 ++
 .../mutant/strategy/method_expansion/class_methods/run_spec.rb  | 2 ++
 .../rspec/dm2/lookup/method/instance/spec_files_spec.rb         | 2 ++
 .../rspec/dm2/lookup/method/singleton/spec_files_spec.rb        | 2 ++
 spec/unit/mutant/subject/context_spec.rb                        | 2 ++
 spec/unit/mutant/subject/mutations_spec.rb                      | 2 ++
 spec/unit/mutant/subject/node_spec.rb                           | 2 ++
 test_app/lib/test_app.rb                                        | 2 ++
 test_app/lib/test_app/literal.rb                                | 2 ++
 test_app/spec/shared/method_filter_parse_behavior.rb            | 2 ++
 test_app/spec/shared/method_match_behavior.rb                   | 2 ++
 test_app/spec/unit/test_app/literal/command_spec.rb             | 2 ++
 test_app/spec/unit/test_app/literal/string_spec.rb              | 2 ++
 197 files changed, 394 insertions(+)

diff --git a/lib/mutant.rb b/lib/mutant.rb
index 078394dc..da59b95e 100644
--- a/lib/mutant.rb
+++ b/lib/mutant.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'benchmark'
 require 'set'
 require 'adamantium'
diff --git a/lib/mutant/cache.rb b/lib/mutant/cache.rb
index e4483224..e28fb9d7 100644
--- a/lib/mutant/cache.rb
+++ b/lib/mutant/cache.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # An AST cache
   class Cache
diff --git a/lib/mutant/cli.rb b/lib/mutant/cli.rb
index bf80ee73..db0e01b3 100644
--- a/lib/mutant/cli.rb
+++ b/lib/mutant/cli.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'optparse'
 
 module Mutant
diff --git a/lib/mutant/cli/classifier.rb b/lib/mutant/cli/classifier.rb
index 8bbaf6e9..91ec353c 100644
--- a/lib/mutant/cli/classifier.rb
+++ b/lib/mutant/cli/classifier.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class CLI
     # A classifier for input strings
diff --git a/lib/mutant/cli/classifier/method.rb b/lib/mutant/cli/classifier/method.rb
index c4353a0e..4bb9c93f 100644
--- a/lib/mutant/cli/classifier/method.rb
+++ b/lib/mutant/cli/classifier/method.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class CLI
     class Classifier
diff --git a/lib/mutant/cli/classifier/namespace.rb b/lib/mutant/cli/classifier/namespace.rb
index f065a788..27be7509 100644
--- a/lib/mutant/cli/classifier/namespace.rb
+++ b/lib/mutant/cli/classifier/namespace.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class CLI
     class Classifier
diff --git a/lib/mutant/cli/classifier/scope.rb b/lib/mutant/cli/classifier/scope.rb
index 81c4d350..ade1b81e 100644
--- a/lib/mutant/cli/classifier/scope.rb
+++ b/lib/mutant/cli/classifier/scope.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class CLI
     class Classifier
diff --git a/lib/mutant/color.rb b/lib/mutant/color.rb
index cb5ceb8e..2083e122 100644
--- a/lib/mutant/color.rb
+++ b/lib/mutant/color.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Class to colorize strings
   class Color
diff --git a/lib/mutant/config.rb b/lib/mutant/config.rb
index 43f4146b..47277312 100644
--- a/lib/mutant/config.rb
+++ b/lib/mutant/config.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # The configuration of a mutator run
   class Config
diff --git a/lib/mutant/constants.rb b/lib/mutant/constants.rb
index d9ba9415..b0f48368 100644
--- a/lib/mutant/constants.rb
+++ b/lib/mutant/constants.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
 
   METHOD_POSTFIX_EXPANSIONS = {
diff --git a/lib/mutant/context.rb b/lib/mutant/context.rb
index e3511aa6..3e7dc1f9 100644
--- a/lib/mutant/context.rb
+++ b/lib/mutant/context.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # An abstract context where mutations can be appied to.
   class Context
diff --git a/lib/mutant/context/scope.rb b/lib/mutant/context/scope.rb
index ed2793be..8907d01d 100644
--- a/lib/mutant/context/scope.rb
+++ b/lib/mutant/context/scope.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Context
     # Scope context for mutation (Class or Module)
diff --git a/lib/mutant/differ.rb b/lib/mutant/differ.rb
index 5df95f9a..9e144ce2 100644
--- a/lib/mutant/differ.rb
+++ b/lib/mutant/differ.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Class to create diffs from source code
   class Differ
diff --git a/lib/mutant/killer.rb b/lib/mutant/killer.rb
index f2291e94..c6b61fde 100644
--- a/lib/mutant/killer.rb
+++ b/lib/mutant/killer.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Abstract base class for mutant killers
   class Killer
diff --git a/lib/mutant/killer/forked.rb b/lib/mutant/killer/forked.rb
index 19565ffd..6495f165 100644
--- a/lib/mutant/killer/forked.rb
+++ b/lib/mutant/killer/forked.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Killer
 
diff --git a/lib/mutant/killer/forking.rb b/lib/mutant/killer/forking.rb
index 64286f19..ae5a6162 100644
--- a/lib/mutant/killer/forking.rb
+++ b/lib/mutant/killer/forking.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Killer
 
diff --git a/lib/mutant/killer/rspec.rb b/lib/mutant/killer/rspec.rb
index 2cdb4199..845c3d0a 100644
--- a/lib/mutant/killer/rspec.rb
+++ b/lib/mutant/killer/rspec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Killer
     # Runner for rspec tests
diff --git a/lib/mutant/killer/static.rb b/lib/mutant/killer/static.rb
index ca5d71dd..5b09e720 100644
--- a/lib/mutant/killer/static.rb
+++ b/lib/mutant/killer/static.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Killer
     # Abstract base class for killer with static result
diff --git a/lib/mutant/loader.rb b/lib/mutant/loader.rb
index 18b57e3d..77ef901b 100644
--- a/lib/mutant/loader.rb
+++ b/lib/mutant/loader.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Base class for code loaders
   class Loader
diff --git a/lib/mutant/matcher.rb b/lib/mutant/matcher.rb
index 4101c68d..d3bbe842 100644
--- a/lib/mutant/matcher.rb
+++ b/lib/mutant/matcher.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Abstract matcher to find subjects to mutate
   class Matcher
diff --git a/lib/mutant/matcher/chain.rb b/lib/mutant/matcher/chain.rb
index 4aec2fdf..ae242413 100644
--- a/lib/mutant/matcher/chain.rb
+++ b/lib/mutant/matcher/chain.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     # A chain of matchers
diff --git a/lib/mutant/matcher/method.rb b/lib/mutant/matcher/method.rb
index 2ca3fdf3..cd6c54e8 100644
--- a/lib/mutant/matcher/method.rb
+++ b/lib/mutant/matcher/method.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     # Matcher for subjects that are a specific method
diff --git a/lib/mutant/matcher/method/finder.rb b/lib/mutant/matcher/method/finder.rb
index 21fae4d5..6f8e51ea 100644
--- a/lib/mutant/matcher/method/finder.rb
+++ b/lib/mutant/matcher/method/finder.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     class Method
diff --git a/lib/mutant/matcher/method/instance.rb b/lib/mutant/matcher/method/instance.rb
index cceed857..87b96003 100644
--- a/lib/mutant/matcher/method/instance.rb
+++ b/lib/mutant/matcher/method/instance.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     class Method
diff --git a/lib/mutant/matcher/method/singleton.rb b/lib/mutant/matcher/method/singleton.rb
index f9b91d8a..46e4e8a9 100644
--- a/lib/mutant/matcher/method/singleton.rb
+++ b/lib/mutant/matcher/method/singleton.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     class Method
diff --git a/lib/mutant/matcher/methods.rb b/lib/mutant/matcher/methods.rb
index 6f26f8fb..6bd05cc1 100644
--- a/lib/mutant/matcher/methods.rb
+++ b/lib/mutant/matcher/methods.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     # Abstract base class for matcher that returns method subjects from scope
diff --git a/lib/mutant/matcher/namespace.rb b/lib/mutant/matcher/namespace.rb
index b03435dd..f67aa8fa 100644
--- a/lib/mutant/matcher/namespace.rb
+++ b/lib/mutant/matcher/namespace.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
 
diff --git a/lib/mutant/matcher/scope.rb b/lib/mutant/matcher/scope.rb
index aae70d64..6b179ff3 100644
--- a/lib/mutant/matcher/scope.rb
+++ b/lib/mutant/matcher/scope.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Matcher
     # Matcher for specific namespace
diff --git a/lib/mutant/mutation.rb b/lib/mutant/mutation.rb
index bda5cf08..4fb76543 100644
--- a/lib/mutant/mutation.rb
+++ b/lib/mutant/mutation.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Represent a mutated node with its subject
   class Mutation
diff --git a/lib/mutant/mutation/evil.rb b/lib/mutant/mutation/evil.rb
index 2a93c1e4..6222fb62 100644
--- a/lib/mutant/mutation/evil.rb
+++ b/lib/mutant/mutation/evil.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutation
     # Evul mutation
diff --git a/lib/mutant/mutation/filter.rb b/lib/mutant/mutation/filter.rb
index b5d3fc70..ca9f5b55 100644
--- a/lib/mutant/mutation/filter.rb
+++ b/lib/mutant/mutation/filter.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutation
     # Abstract filter for mutations
diff --git a/lib/mutant/mutation/filter/code.rb b/lib/mutant/mutation/filter/code.rb
index 084e7bf2..7d046d41 100644
--- a/lib/mutant/mutation/filter/code.rb
+++ b/lib/mutant/mutation/filter/code.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutation
     class Filter
diff --git a/lib/mutant/mutation/filter/regexp.rb b/lib/mutant/mutation/filter/regexp.rb
index 95a951f1..fcf4d0a4 100644
--- a/lib/mutant/mutation/filter/regexp.rb
+++ b/lib/mutant/mutation/filter/regexp.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutation
     class Filter
diff --git a/lib/mutant/mutation/filter/whitelist.rb b/lib/mutant/mutation/filter/whitelist.rb
index 85a69c31..4f056a28 100644
--- a/lib/mutant/mutation/filter/whitelist.rb
+++ b/lib/mutant/mutation/filter/whitelist.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutation
     class Filter
diff --git a/lib/mutant/mutation/neutral.rb b/lib/mutant/mutation/neutral.rb
index 0104cdc6..0eb40ac5 100644
--- a/lib/mutant/mutation/neutral.rb
+++ b/lib/mutant/mutation/neutral.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutation
     # Neutral mutation
diff --git a/lib/mutant/mutator.rb b/lib/mutant/mutator.rb
index f608320b..906399fe 100644
--- a/lib/mutant/mutator.rb
+++ b/lib/mutant/mutator.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Generator for mutations
   class Mutator
diff --git a/lib/mutant/mutator/node.rb b/lib/mutant/mutator/node.rb
index 7ded8853..64a54561 100644
--- a/lib/mutant/mutator/node.rb
+++ b/lib/mutant/mutator/node.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Generator for mutations
   class Mutator
diff --git a/lib/mutant/mutator/node/argument.rb b/lib/mutant/mutator/node/argument.rb
index f0c1f439..caf787d2 100644
--- a/lib/mutant/mutator/node/argument.rb
+++ b/lib/mutant/mutator/node/argument.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/arguments.rb b/lib/mutant/mutator/node/arguments.rb
index 1b37a6ea..0c853b4e 100644
--- a/lib/mutant/mutator/node/arguments.rb
+++ b/lib/mutant/mutator/node/arguments.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/begin.rb b/lib/mutant/mutator/node/begin.rb
index 23bf4e5e..796f3188 100644
--- a/lib/mutant/mutator/node/begin.rb
+++ b/lib/mutant/mutator/node/begin.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/block.rb b/lib/mutant/mutator/node/block.rb
index acc1b739..fecac4ba 100644
--- a/lib/mutant/mutator/node/block.rb
+++ b/lib/mutant/mutator/node/block.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/case.rb b/lib/mutant/mutator/node/case.rb
index 9e00a9da..4c42f29a 100644
--- a/lib/mutant/mutator/node/case.rb
+++ b/lib/mutant/mutator/node/case.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/connective/binary.rb b/lib/mutant/mutator/node/connective/binary.rb
index 62b5161e..df0c3a8c 100644
--- a/lib/mutant/mutator/node/connective/binary.rb
+++ b/lib/mutant/mutator/node/connective/binary.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/const.rb b/lib/mutant/mutator/node/const.rb
index 898e05ce..3d27264d 100644
--- a/lib/mutant/mutator/node/const.rb
+++ b/lib/mutant/mutator/node/const.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/define.rb b/lib/mutant/mutator/node/define.rb
index 7c91ed1c..47992788 100644
--- a/lib/mutant/mutator/node/define.rb
+++ b/lib/mutant/mutator/node/define.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/generic.rb b/lib/mutant/mutator/node/generic.rb
index fa6feccd..35d6ba2e 100644
--- a/lib/mutant/mutator/node/generic.rb
+++ b/lib/mutant/mutator/node/generic.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/if.rb b/lib/mutant/mutator/node/if.rb
index 178a7c11..8f1cc25b 100644
--- a/lib/mutant/mutator/node/if.rb
+++ b/lib/mutant/mutator/node/if.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal.rb b/lib/mutant/mutator/node/literal.rb
index 9b39bf00..02910874 100644
--- a/lib/mutant/mutator/node/literal.rb
+++ b/lib/mutant/mutator/node/literal.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/array.rb b/lib/mutant/mutator/node/literal/array.rb
index bb8008d9..c95ec2ca 100644
--- a/lib/mutant/mutator/node/literal/array.rb
+++ b/lib/mutant/mutator/node/literal/array.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/boolean.rb b/lib/mutant/mutator/node/literal/boolean.rb
index e57343a2..5c1717af 100644
--- a/lib/mutant/mutator/node/literal/boolean.rb
+++ b/lib/mutant/mutator/node/literal/boolean.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/dynamic.rb b/lib/mutant/mutator/node/literal/dynamic.rb
index b6a74285..cecee3bc 100644
--- a/lib/mutant/mutator/node/literal/dynamic.rb
+++ b/lib/mutant/mutator/node/literal/dynamic.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/fixnum.rb b/lib/mutant/mutator/node/literal/fixnum.rb
index 4d75eaf7..86436277 100644
--- a/lib/mutant/mutator/node/literal/fixnum.rb
+++ b/lib/mutant/mutator/node/literal/fixnum.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/float.rb b/lib/mutant/mutator/node/literal/float.rb
index 8a1a64eb..8c54bd70 100644
--- a/lib/mutant/mutator/node/literal/float.rb
+++ b/lib/mutant/mutator/node/literal/float.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/hash.rb b/lib/mutant/mutator/node/literal/hash.rb
index e368e8fb..8bb1163e 100644
--- a/lib/mutant/mutator/node/literal/hash.rb
+++ b/lib/mutant/mutator/node/literal/hash.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/nil.rb b/lib/mutant/mutator/node/literal/nil.rb
index 9ca2b011..1ceeadb5 100644
--- a/lib/mutant/mutator/node/literal/nil.rb
+++ b/lib/mutant/mutator/node/literal/nil.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/range.rb b/lib/mutant/mutator/node/literal/range.rb
index 9db113d7..9f3d8bad 100644
--- a/lib/mutant/mutator/node/literal/range.rb
+++ b/lib/mutant/mutator/node/literal/range.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/regex.rb b/lib/mutant/mutator/node/literal/regex.rb
index 23310870..ef5e9594 100644
--- a/lib/mutant/mutator/node/literal/regex.rb
+++ b/lib/mutant/mutator/node/literal/regex.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/string.rb b/lib/mutant/mutator/node/literal/string.rb
index 898c87aa..6abd8cf2 100644
--- a/lib/mutant/mutator/node/literal/string.rb
+++ b/lib/mutant/mutator/node/literal/string.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/literal/symbol.rb b/lib/mutant/mutator/node/literal/symbol.rb
index a77e85c0..ad1f4f62 100644
--- a/lib/mutant/mutator/node/literal/symbol.rb
+++ b/lib/mutant/mutator/node/literal/symbol.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/masgn.rb b/lib/mutant/mutator/node/masgn.rb
index 4e80e4e8..496ee67c 100644
--- a/lib/mutant/mutator/node/masgn.rb
+++ b/lib/mutant/mutator/node/masgn.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/mlhs.rb b/lib/mutant/mutator/node/mlhs.rb
index 3235f7ed..7bddc758 100644
--- a/lib/mutant/mutator/node/mlhs.rb
+++ b/lib/mutant/mutator/node/mlhs.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/named_value/access.rb b/lib/mutant/mutator/node/named_value/access.rb
index f34a8502..8c522181 100644
--- a/lib/mutant/mutator/node/named_value/access.rb
+++ b/lib/mutant/mutator/node/named_value/access.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/named_value/constant_assignment.rb b/lib/mutant/mutator/node/named_value/constant_assignment.rb
index 00a63ea7..e8e55a42 100644
--- a/lib/mutant/mutator/node/named_value/constant_assignment.rb
+++ b/lib/mutant/mutator/node/named_value/constant_assignment.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/named_value/variable_assignment.rb b/lib/mutant/mutator/node/named_value/variable_assignment.rb
index ad9d0478..3e55dbcf 100644
--- a/lib/mutant/mutator/node/named_value/variable_assignment.rb
+++ b/lib/mutant/mutator/node/named_value/variable_assignment.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/noop.rb b/lib/mutant/mutator/node/noop.rb
index 5f6178f7..4df9fbe8 100644
--- a/lib/mutant/mutator/node/noop.rb
+++ b/lib/mutant/mutator/node/noop.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/return.rb b/lib/mutant/mutator/node/return.rb
index 460b18e0..d38bc26d 100644
--- a/lib/mutant/mutator/node/return.rb
+++ b/lib/mutant/mutator/node/return.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/send.rb b/lib/mutant/mutator/node/send.rb
index c675feb9..b7e70aba 100644
--- a/lib/mutant/mutator/node/send.rb
+++ b/lib/mutant/mutator/node/send.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/send/binary.rb b/lib/mutant/mutator/node/send/binary.rb
index 2d8e14d0..2552f311 100644
--- a/lib/mutant/mutator/node/send/binary.rb
+++ b/lib/mutant/mutator/node/send/binary.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/splat.rb b/lib/mutant/mutator/node/splat.rb
index 7ff83388..f7bc87ae 100644
--- a/lib/mutant/mutator/node/splat.rb
+++ b/lib/mutant/mutator/node/splat.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/super.rb b/lib/mutant/mutator/node/super.rb
index 940f4883..530482dd 100644
--- a/lib/mutant/mutator/node/super.rb
+++ b/lib/mutant/mutator/node/super.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/when.rb b/lib/mutant/mutator/node/when.rb
index a0005812..b882ecc9 100644
--- a/lib/mutant/mutator/node/when.rb
+++ b/lib/mutant/mutator/node/when.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/while.rb b/lib/mutant/mutator/node/while.rb
index 1bb181d5..853973ca 100644
--- a/lib/mutant/mutator/node/while.rb
+++ b/lib/mutant/mutator/node/while.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/node/zsuper.rb b/lib/mutant/mutator/node/zsuper.rb
index 7e86e860..a27559d7 100644
--- a/lib/mutant/mutator/node/zsuper.rb
+++ b/lib/mutant/mutator/node/zsuper.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Node
diff --git a/lib/mutant/mutator/registry.rb b/lib/mutant/mutator/registry.rb
index 163468ae..c830f938 100644
--- a/lib/mutant/mutator/registry.rb
+++ b/lib/mutant/mutator/registry.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     # Registry for mutators
diff --git a/lib/mutant/mutator/util.rb b/lib/mutant/mutator/util.rb
index 738663f8..9b6317e0 100644
--- a/lib/mutant/mutator/util.rb
+++ b/lib/mutant/mutator/util.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     # Namespace for utility mutators
diff --git a/lib/mutant/mutator/util/array.rb b/lib/mutant/mutator/util/array.rb
index a7393840..fed11ec0 100644
--- a/lib/mutant/mutator/util/array.rb
+++ b/lib/mutant/mutator/util/array.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Util
diff --git a/lib/mutant/mutator/util/symbol.rb b/lib/mutant/mutator/util/symbol.rb
index 637f8359..8c943131 100644
--- a/lib/mutant/mutator/util/symbol.rb
+++ b/lib/mutant/mutator/util/symbol.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Mutator
     class Util
diff --git a/lib/mutant/node_helpers.rb b/lib/mutant/node_helpers.rb
index 4e317358..a16ad87c 100644
--- a/lib/mutant/node_helpers.rb
+++ b/lib/mutant/node_helpers.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Mixin for node helpers
   module NodeHelpers
diff --git a/lib/mutant/random.rb b/lib/mutant/random.rb
index 3e73cbc8..227277ae 100644
--- a/lib/mutant/random.rb
+++ b/lib/mutant/random.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Module for generating random values
   module Random
diff --git a/lib/mutant/reporter.rb b/lib/mutant/reporter.rb
index 9e35aca5..7572ed8d 100644
--- a/lib/mutant/reporter.rb
+++ b/lib/mutant/reporter.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Abstract base class for reporters
   class Reporter
diff --git a/lib/mutant/reporter/cli.rb b/lib/mutant/reporter/cli.rb
index eacb04db..f6a0f8bd 100644
--- a/lib/mutant/reporter/cli.rb
+++ b/lib/mutant/reporter/cli.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
     # Reporter that reports in human readable format
diff --git a/lib/mutant/reporter/cli/printer.rb b/lib/mutant/reporter/cli/printer.rb
index 3bc6de86..9d51fab0 100644
--- a/lib/mutant/reporter/cli/printer.rb
+++ b/lib/mutant/reporter/cli/printer.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
     class CLI
diff --git a/lib/mutant/reporter/cli/printer/config.rb b/lib/mutant/reporter/cli/printer/config.rb
index 48fac422..e864bde7 100644
--- a/lib/mutant/reporter/cli/printer/config.rb
+++ b/lib/mutant/reporter/cli/printer/config.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
     class CLI
diff --git a/lib/mutant/reporter/cli/printer/killer.rb b/lib/mutant/reporter/cli/printer/killer.rb
index 29099df9..368e36f3 100644
--- a/lib/mutant/reporter/cli/printer/killer.rb
+++ b/lib/mutant/reporter/cli/printer/killer.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
     class CLI
diff --git a/lib/mutant/reporter/cli/printer/mutation.rb b/lib/mutant/reporter/cli/printer/mutation.rb
index 90d2f60d..02237101 100644
--- a/lib/mutant/reporter/cli/printer/mutation.rb
+++ b/lib/mutant/reporter/cli/printer/mutation.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
     class CLI
diff --git a/lib/mutant/reporter/cli/printer/subject.rb b/lib/mutant/reporter/cli/printer/subject.rb
index e2360fe1..25554b79 100644
--- a/lib/mutant/reporter/cli/printer/subject.rb
+++ b/lib/mutant/reporter/cli/printer/subject.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
     class CLI
diff --git a/lib/mutant/reporter/null.rb b/lib/mutant/reporter/null.rb
index acc4ed27..40265d01 100644
--- a/lib/mutant/reporter/null.rb
+++ b/lib/mutant/reporter/null.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Reporter
 
diff --git a/lib/mutant/runner.rb b/lib/mutant/runner.rb
index f94472fb..5507775f 100644
--- a/lib/mutant/runner.rb
+++ b/lib/mutant/runner.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Runner baseclass
   class Runner
diff --git a/lib/mutant/runner/config.rb b/lib/mutant/runner/config.rb
index 35f2b3f9..92e18560 100644
--- a/lib/mutant/runner/config.rb
+++ b/lib/mutant/runner/config.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Runner
     # Runner for object config
diff --git a/lib/mutant/runner/mutation.rb b/lib/mutant/runner/mutation.rb
index 4fddc7aa..b6b8c2c3 100644
--- a/lib/mutant/runner/mutation.rb
+++ b/lib/mutant/runner/mutation.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Runner
     # Mutation runner
diff --git a/lib/mutant/runner/subject.rb b/lib/mutant/runner/subject.rb
index 4fd2a552..8ca0d63c 100644
--- a/lib/mutant/runner/subject.rb
+++ b/lib/mutant/runner/subject.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Runner
     # Subject specific runner
diff --git a/lib/mutant/singleton_methods.rb b/lib/mutant/singleton_methods.rb
index 6e773aa3..32d9cd95 100644
--- a/lib/mutant/singleton_methods.rb
+++ b/lib/mutant/singleton_methods.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 # Singleton methods are defined here so zombie can pick them up
 module Mutant
 
diff --git a/lib/mutant/strategy.rb b/lib/mutant/strategy.rb
index 99f1364b..eeed1848 100644
--- a/lib/mutant/strategy.rb
+++ b/lib/mutant/strategy.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
 
   # Abstract base class for killing strategies
diff --git a/lib/mutant/strategy/method_expansion.rb b/lib/mutant/strategy/method_expansion.rb
index f0b02a11..9e6629c5 100644
--- a/lib/mutant/strategy/method_expansion.rb
+++ b/lib/mutant/strategy/method_expansion.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Strategy
     module MethodExpansion
diff --git a/lib/mutant/strategy/rspec.rb b/lib/mutant/strategy/rspec.rb
index 4636b3fa..f2f658a6 100644
--- a/lib/mutant/strategy/rspec.rb
+++ b/lib/mutant/strategy/rspec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Strategy
 
diff --git a/lib/mutant/strategy/rspec/dm2.rb b/lib/mutant/strategy/rspec/dm2.rb
index 27f8dc31..43e84353 100644
--- a/lib/mutant/strategy/rspec/dm2.rb
+++ b/lib/mutant/strategy/rspec/dm2.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Strategy
     class Rspec
diff --git a/lib/mutant/strategy/rspec/dm2/lookup.rb b/lib/mutant/strategy/rspec/dm2/lookup.rb
index aa98ecdd..4de0568c 100644
--- a/lib/mutant/strategy/rspec/dm2/lookup.rb
+++ b/lib/mutant/strategy/rspec/dm2/lookup.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Strategy
     class Rspec
diff --git a/lib/mutant/strategy/rspec/dm2/lookup/method.rb b/lib/mutant/strategy/rspec/dm2/lookup/method.rb
index bbeb0bbe..bccf27f4 100644
--- a/lib/mutant/strategy/rspec/dm2/lookup/method.rb
+++ b/lib/mutant/strategy/rspec/dm2/lookup/method.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Strategy
     class Rspec
diff --git a/lib/mutant/strategy/static.rb b/lib/mutant/strategy/static.rb
index d7da151e..bcd9b2cd 100644
--- a/lib/mutant/strategy/static.rb
+++ b/lib/mutant/strategy/static.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Strategy
     # Static strategies
diff --git a/lib/mutant/subject.rb b/lib/mutant/subject.rb
index c8562cc2..c6013921 100644
--- a/lib/mutant/subject.rb
+++ b/lib/mutant/subject.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Subject of a mutation
   class Subject
diff --git a/lib/mutant/subject/method.rb b/lib/mutant/subject/method.rb
index c887b17d..2a73efd3 100644
--- a/lib/mutant/subject/method.rb
+++ b/lib/mutant/subject/method.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Subject
     # Abstract base class for method subjects
diff --git a/lib/mutant/subject/method/instance.rb b/lib/mutant/subject/method/instance.rb
index 78ec463f..d31f6e7d 100644
--- a/lib/mutant/subject/method/instance.rb
+++ b/lib/mutant/subject/method/instance.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Subject
     class Method
diff --git a/lib/mutant/subject/method/singleton.rb b/lib/mutant/subject/method/singleton.rb
index a3f230fd..ce5a1dc5 100644
--- a/lib/mutant/subject/method/singleton.rb
+++ b/lib/mutant/subject/method/singleton.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   class Subject
     class Method
diff --git a/lib/mutant/support/method_object.rb b/lib/mutant/support/method_object.rb
index 10c947d4..ffa72444 100644
--- a/lib/mutant/support/method_object.rb
+++ b/lib/mutant/support/method_object.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # A mixing to create method object semantics
   module MethodObject
diff --git a/lib/mutant/zombifier.rb b/lib/mutant/zombifier.rb
index 29b29837..d426d9f2 100644
--- a/lib/mutant/zombifier.rb
+++ b/lib/mutant/zombifier.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Mutant
   # Zombifier namespace
   module Zombifier
diff --git a/spec/integration/mutant/rspec_killer_spec.rb b/spec/integration/mutant/rspec_killer_spec.rb
index bf2678af..0571ae09 100644
--- a/spec/integration/mutant/rspec_killer_spec.rb
+++ b/spec/integration/mutant/rspec_killer_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant, 'rspec integration' do
diff --git a/spec/integration/mutant/test_mutator_handles_types_spec.rb b/spec/integration/mutant/test_mutator_handles_types_spec.rb
index c82a0815..8e1662c8 100644
--- a/spec/integration/mutant/test_mutator_handles_types_spec.rb
+++ b/spec/integration/mutant/test_mutator_handles_types_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant do
diff --git a/spec/integration/mutant/zombie_spec.rb b/spec/integration/mutant/zombie_spec.rb
index c6b6e9df..d6e73e36 100644
--- a/spec/integration/mutant/zombie_spec.rb
+++ b/spec/integration/mutant/zombie_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant, 'as a zombie' do
diff --git a/spec/shared/method_matcher_behavior.rb b/spec/shared/method_matcher_behavior.rb
index c2e5bbf6..903baf22 100644
--- a/spec/shared/method_matcher_behavior.rb
+++ b/spec/shared/method_matcher_behavior.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 shared_examples_for 'a method matcher' do
 
   before { subject }
diff --git a/spec/shared/mutator_behavior.rb b/spec/shared/mutator_behavior.rb
index 2fd3d518..3a37b59c 100644
--- a/spec/shared/mutator_behavior.rb
+++ b/spec/shared/mutator_behavior.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 class Subject
 
   include Equalizer.new(:source)
diff --git a/spec/support/compress_helper.rb b/spec/support/compress_helper.rb
index 3e96dc7e..b7631bbe 100644
--- a/spec/support/compress_helper.rb
+++ b/spec/support/compress_helper.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module CompressHelper
   def strip_indent(string)
     lines       = string.lines
diff --git a/spec/support/ice_nine_config.rb b/spec/support/ice_nine_config.rb
index cc738345..187ef346 100644
--- a/spec/support/ice_nine_config.rb
+++ b/spec/support/ice_nine_config.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'ice_nine'
 
 module IceNine
diff --git a/spec/support/rspec.rb b/spec/support/rspec.rb
index a495f2de..fc8d31a4 100644
--- a/spec/support/rspec.rb
+++ b/spec/support/rspec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 # Patch rspec to allow nested execution
 module Rspec
   # Run block in clean rspec environment
diff --git a/spec/support/test_app.rb b/spec/support/test_app.rb
index 6ab5db3f..8cfda9af 100644
--- a/spec/support/test_app.rb
+++ b/spec/support/test_app.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module TestApp
   def self.root
     File.expand_path('../../../test_app', __FILE__)
diff --git a/spec/unit/mutant/class_methods/singleton_subclass_instance_spec.rb b/spec/unit/mutant/class_methods/singleton_subclass_instance_spec.rb
index 21fc8140..8c47fc40 100644
--- a/spec/unit/mutant/class_methods/singleton_subclass_instance_spec.rb
+++ b/spec/unit/mutant/class_methods/singleton_subclass_instance_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant, '.singleton_subclass_instance' do
diff --git a/spec/unit/mutant/cli/class_methods/new_spec.rb b/spec/unit/mutant/cli/class_methods/new_spec.rb
index 8ca8b662..b603edb4 100644
--- a/spec/unit/mutant/cli/class_methods/new_spec.rb
+++ b/spec/unit/mutant/cli/class_methods/new_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 shared_examples_for 'an invalid cli run' do
diff --git a/spec/unit/mutant/cli/class_methods/run_spec.rb b/spec/unit/mutant/cli/class_methods/run_spec.rb
index a8ff0a13..506c8b22 100644
--- a/spec/unit/mutant/cli/class_methods/run_spec.rb
+++ b/spec/unit/mutant/cli/class_methods/run_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::CLI, '.run' do
diff --git a/spec/unit/mutant/cli/classifier/class_methods/build_spec.rb b/spec/unit/mutant/cli/classifier/class_methods/build_spec.rb
index 81c21ae1..7229bced 100644
--- a/spec/unit/mutant/cli/classifier/class_methods/build_spec.rb
+++ b/spec/unit/mutant/cli/classifier/class_methods/build_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::CLI::Classifier, '.build' do
diff --git a/spec/unit/mutant/context/root_spec.rb b/spec/unit/mutant/context/root_spec.rb
index f1b3d4b6..74346da9 100644
--- a/spec/unit/mutant/context/root_spec.rb
+++ b/spec/unit/mutant/context/root_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Context, '#root' do
diff --git a/spec/unit/mutant/context/scope/root_spec.rb b/spec/unit/mutant/context/scope/root_spec.rb
index 0c3149c8..5559c873 100644
--- a/spec/unit/mutant/context/scope/root_spec.rb
+++ b/spec/unit/mutant/context/scope/root_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Context::Scope, '#root' do
diff --git a/spec/unit/mutant/context/scope/unqualified_name_spec.rb b/spec/unit/mutant/context/scope/unqualified_name_spec.rb
index b06f6baa..e4fda3d6 100644
--- a/spec/unit/mutant/context/scope/unqualified_name_spec.rb
+++ b/spec/unit/mutant/context/scope/unqualified_name_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Context::Scope, '#unqualified_name' do
diff --git a/spec/unit/mutant/differ/class_methods/build_spec.rb b/spec/unit/mutant/differ/class_methods/build_spec.rb
index 5679c8d4..a5d513d9 100644
--- a/spec/unit/mutant/differ/class_methods/build_spec.rb
+++ b/spec/unit/mutant/differ/class_methods/build_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Differ, '.build' do
diff --git a/spec/unit/mutant/differ/class_methods/colorize_line_spec.rb b/spec/unit/mutant/differ/class_methods/colorize_line_spec.rb
index 939e6ad2..cdd1fe55 100644
--- a/spec/unit/mutant/differ/class_methods/colorize_line_spec.rb
+++ b/spec/unit/mutant/differ/class_methods/colorize_line_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Differ, '.colorize_line' do
diff --git a/spec/unit/mutant/differ/diff_spec.rb b/spec/unit/mutant/differ/diff_spec.rb
index 063fc5f1..ba86f6b0 100644
--- a/spec/unit/mutant/differ/diff_spec.rb
+++ b/spec/unit/mutant/differ/diff_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Differ, '#diff' do
diff --git a/spec/unit/mutant/killer/rspec/class_methods/new_spec.rb b/spec/unit/mutant/killer/rspec/class_methods/new_spec.rb
index b7d72840..5081b326 100644
--- a/spec/unit/mutant/killer/rspec/class_methods/new_spec.rb
+++ b/spec/unit/mutant/killer/rspec/class_methods/new_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Killer::Rspec, '.new' do
diff --git a/spec/unit/mutant/killer/success_predicate_spec.rb b/spec/unit/mutant/killer/success_predicate_spec.rb
index 4c8e12b0..605d81ea 100644
--- a/spec/unit/mutant/killer/success_predicate_spec.rb
+++ b/spec/unit/mutant/killer/success_predicate_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Killer, '#success?' do
diff --git a/spec/unit/mutant/loader/eval/class_methods/run_spec.rb b/spec/unit/mutant/loader/eval/class_methods/run_spec.rb
index ce6cdc88..8c2f587f 100644
--- a/spec/unit/mutant/loader/eval/class_methods/run_spec.rb
+++ b/spec/unit/mutant/loader/eval/class_methods/run_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Loader::Eval, '.run' do
diff --git a/spec/unit/mutant/matcher/chain/each_spec.rb b/spec/unit/mutant/matcher/chain/each_spec.rb
index 517928ab..d3b37589 100644
--- a/spec/unit/mutant/matcher/chain/each_spec.rb
+++ b/spec/unit/mutant/matcher/chain/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Chain, '#each' do
diff --git a/spec/unit/mutant/matcher/chain/matchers_spec.rb b/spec/unit/mutant/matcher/chain/matchers_spec.rb
index d73a4d8e..bafee822 100644
--- a/spec/unit/mutant/matcher/chain/matchers_spec.rb
+++ b/spec/unit/mutant/matcher/chain/matchers_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Chain, '#matchers' do
diff --git a/spec/unit/mutant/matcher/each_spec.rb b/spec/unit/mutant/matcher/each_spec.rb
index 338e2961..bfe53d3d 100644
--- a/spec/unit/mutant/matcher/each_spec.rb
+++ b/spec/unit/mutant/matcher/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 # This spec is only present to ensure 100% test coverage.
diff --git a/spec/unit/mutant/matcher/method/instance/class_methods/build_spec.rb b/spec/unit/mutant/matcher/method/instance/class_methods/build_spec.rb
index b36f2f8d..deac7655 100644
--- a/spec/unit/mutant/matcher/method/instance/class_methods/build_spec.rb
+++ b/spec/unit/mutant/matcher/method/instance/class_methods/build_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Method::Instance, '.build' do
diff --git a/spec/unit/mutant/matcher/method/instance/each_spec.rb b/spec/unit/mutant/matcher/method/instance/each_spec.rb
index 0aa43716..7eb1f1b9 100644
--- a/spec/unit/mutant/matcher/method/instance/each_spec.rb
+++ b/spec/unit/mutant/matcher/method/instance/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Method::Instance, '#each' do
diff --git a/spec/unit/mutant/matcher/method/singleton/each_spec.rb b/spec/unit/mutant/matcher/method/singleton/each_spec.rb
index 08471581..940a049e 100644
--- a/spec/unit/mutant/matcher/method/singleton/each_spec.rb
+++ b/spec/unit/mutant/matcher/method/singleton/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Method::Singleton, '#each' do
diff --git a/spec/unit/mutant/matcher/methods/instance/each_spec.rb b/spec/unit/mutant/matcher/methods/instance/each_spec.rb
index 1e022ae1..b2d1b80e 100644
--- a/spec/unit/mutant/matcher/methods/instance/each_spec.rb
+++ b/spec/unit/mutant/matcher/methods/instance/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Methods::Instance, '#each' do
diff --git a/spec/unit/mutant/matcher/methods/singleton/each_spec.rb b/spec/unit/mutant/matcher/methods/singleton/each_spec.rb
index 2dad2aea..1c8edca2 100644
--- a/spec/unit/mutant/matcher/methods/singleton/each_spec.rb
+++ b/spec/unit/mutant/matcher/methods/singleton/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Methods::Singleton, '#each' do
diff --git a/spec/unit/mutant/matcher/namespace/each_spec.rb b/spec/unit/mutant/matcher/namespace/each_spec.rb
index f9942476..d8110cbe 100644
--- a/spec/unit/mutant/matcher/namespace/each_spec.rb
+++ b/spec/unit/mutant/matcher/namespace/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Matcher::Namespace, '#each' do
diff --git a/spec/unit/mutant/mutator/each_spec.rb b/spec/unit/mutant/mutator/each_spec.rb
index a552fe31..db64797e 100644
--- a/spec/unit/mutant/mutator/each_spec.rb
+++ b/spec/unit/mutant/mutator/each_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 # This file is the sandbox for new mutations.
 # Once finished mutation test will be moved to class specfic
 # file.
diff --git a/spec/unit/mutant/mutator/emit_new_spec.rb b/spec/unit/mutant/mutator/emit_new_spec.rb
index e689092f..0ae0d070 100644
--- a/spec/unit/mutant/mutator/emit_new_spec.rb
+++ b/spec/unit/mutant/mutator/emit_new_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, '#emit_new' do
diff --git a/spec/unit/mutant/mutator/emit_spec.rb b/spec/unit/mutant/mutator/emit_spec.rb
index 30e3e231..243c8d38 100644
--- a/spec/unit/mutant/mutator/emit_spec.rb
+++ b/spec/unit/mutant/mutator/emit_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, '#emit' do
diff --git a/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb
index d10b7942..72d3eec7 100644
--- a/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/and_asgn/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'and_asgn' do
diff --git a/spec/unit/mutant/mutator/node/begin/mutation_spec.rb b/spec/unit/mutant/mutator/node/begin/mutation_spec.rb
index 00dbac87..15102206 100644
--- a/spec/unit/mutant/mutator/node/begin/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/begin/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'begin' do
diff --git a/spec/unit/mutant/mutator/node/block/mutation_spec.rb b/spec/unit/mutant/mutator/node/block/mutation_spec.rb
index e27088b0..0ac4de38 100644
--- a/spec/unit/mutant/mutator/node/block/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/block/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'block' do
diff --git a/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb b/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb
index 628a824c..702f8a5d 100644
--- a/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/block_pass/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::NamedValue::Access, 'block_pass' do
diff --git a/spec/unit/mutant/mutator/node/break/mutation_spec.rb b/spec/unit/mutant/mutator/node/break/mutation_spec.rb
index 66b001a1..f15e15c3 100644
--- a/spec/unit/mutant/mutator/node/break/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/break/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'break' do
diff --git a/spec/unit/mutant/mutator/node/case/mutation_spec.rb b/spec/unit/mutant/mutator/node/case/mutation_spec.rb
index 28eb269b..6ec98923 100644
--- a/spec/unit/mutant/mutator/node/case/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/case/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Case do
diff --git a/spec/unit/mutant/mutator/node/cbase/mutation_spec.rb b/spec/unit/mutant/mutator/node/cbase/mutation_spec.rb
index b0239fb0..43638b04 100644
--- a/spec/unit/mutant/mutator/node/cbase/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/cbase/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Noop, 'cbase' do
diff --git a/spec/unit/mutant/mutator/node/connective/binary/mutation_spec.rb b/spec/unit/mutant/mutator/node/connective/binary/mutation_spec.rb
index a51012d1..29a8bfe9 100644
--- a/spec/unit/mutant/mutator/node/connective/binary/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/connective/binary/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Connective::Binary, 'mutations' do
diff --git a/spec/unit/mutant/mutator/node/const/mutation_spec.rb b/spec/unit/mutant/mutator/node/const/mutation_spec.rb
index 250f439e..07a79633 100644
--- a/spec/unit/mutant/mutator/node/const/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/const/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Const, 'const' do
diff --git a/spec/unit/mutant/mutator/node/define/mutation_spec.rb b/spec/unit/mutant/mutator/node/define/mutation_spec.rb
index 50fc8924..ac3de669 100644
--- a/spec/unit/mutant/mutator/node/define/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/define/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'def' do
diff --git a/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb b/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb
index e74bb23e..6ce3c8ed 100644
--- a/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/defined_predicate/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'defined?' do
diff --git a/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb b/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb
index 6f2db551..08cac4d7 100644
--- a/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/dstr/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'dstr' do
diff --git a/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb b/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb
index d059f4cb..eed07c37 100644
--- a/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/dsym/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'dsum' do
diff --git a/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb b/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
index 0a633170..827617c7 100644
--- a/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'ensure' do
diff --git a/spec/unit/mutant/mutator/node/if/mutation_spec.rb b/spec/unit/mutant/mutator/node/if/mutation_spec.rb
index bf05ae88..5f0c076e 100644
--- a/spec/unit/mutant/mutator/node/if/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/if/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'if' do
diff --git a/spec/unit/mutant/mutator/node/literal/array_spec.rb b/spec/unit/mutant/mutator/node/literal/array_spec.rb
index 5a94fccc..32798e69 100644
--- a/spec/unit/mutant/mutator/node/literal/array_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/array_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'array' do
diff --git a/spec/unit/mutant/mutator/node/literal/boolean/mutation_spec.rb b/spec/unit/mutant/mutator/node/literal/boolean/mutation_spec.rb
index 9b6f871b..344e2bdb 100644
--- a/spec/unit/mutant/mutator/node/literal/boolean/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/boolean/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'boolean' do
diff --git a/spec/unit/mutant/mutator/node/literal/fixnum_spec.rb b/spec/unit/mutant/mutator/node/literal/fixnum_spec.rb
index a69dc32b..795fc6d0 100644
--- a/spec/unit/mutant/mutator/node/literal/fixnum_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/fixnum_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'fixnum' do
diff --git a/spec/unit/mutant/mutator/node/literal/float_spec.rb b/spec/unit/mutant/mutator/node/literal/float_spec.rb
index 5c9c1861..4332cca8 100644
--- a/spec/unit/mutant/mutator/node/literal/float_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/float_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'float' do
diff --git a/spec/unit/mutant/mutator/node/literal/hash_spec.rb b/spec/unit/mutant/mutator/node/literal/hash_spec.rb
index 6e25b4e9..88e23451 100644
--- a/spec/unit/mutant/mutator/node/literal/hash_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/hash_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'hash' do
diff --git a/spec/unit/mutant/mutator/node/literal/nil_spec.rb b/spec/unit/mutant/mutator/node/literal/nil_spec.rb
index 759ae273..72fb2e54 100644
--- a/spec/unit/mutant/mutator/node/literal/nil_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/nil_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'nil' do
diff --git a/spec/unit/mutant/mutator/node/literal/range_spec.rb b/spec/unit/mutant/mutator/node/literal/range_spec.rb
index 94212698..1963b4ea 100644
--- a/spec/unit/mutant/mutator/node/literal/range_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/range_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'range' do
diff --git a/spec/unit/mutant/mutator/node/literal/regex_spec.rb b/spec/unit/mutant/mutator/node/literal/regex_spec.rb
index 07cdba40..8a3a1dce 100644
--- a/spec/unit/mutant/mutator/node/literal/regex_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/regex_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'regex' do
diff --git a/spec/unit/mutant/mutator/node/literal/string_spec.rb b/spec/unit/mutant/mutator/node/literal/string_spec.rb
index 1bb18c6d..b2fe6473 100644
--- a/spec/unit/mutant/mutator/node/literal/string_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/string_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'string' do
diff --git a/spec/unit/mutant/mutator/node/literal/symbol_spec.rb b/spec/unit/mutant/mutator/node/literal/symbol_spec.rb
index 9832e5f7..0acc656f 100644
--- a/spec/unit/mutant/mutator/node/literal/symbol_spec.rb
+++ b/spec/unit/mutant/mutator/node/literal/symbol_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Literal, 'symbol' do
diff --git a/spec/unit/mutant/mutator/node/masgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/masgn/mutation_spec.rb
index f9be3d7a..f1c94d63 100644
--- a/spec/unit/mutant/mutator/node/masgn/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/masgn/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'masgn' do
diff --git a/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb b/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb
index 09f65e2d..50e20117 100644
--- a/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/match_current_line/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'match_current_line' do
diff --git a/spec/unit/mutant/mutator/node/named_value/access/mutation_spec.rb b/spec/unit/mutant/mutator/node/named_value/access/mutation_spec.rb
index 75d02795..15d04bfb 100644
--- a/spec/unit/mutant/mutator/node/named_value/access/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/named_value/access/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::NamedValue::Access, 'mutations' do
diff --git a/spec/unit/mutant/mutator/node/named_value/constant_assignment/mutation_spec.rb b/spec/unit/mutant/mutator/node/named_value/constant_assignment/mutation_spec.rb
index 66454a71..45604ed4 100644
--- a/spec/unit/mutant/mutator/node/named_value/constant_assignment/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/named_value/constant_assignment/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::NamedValue::VariableAssignment, 'mutations' do
diff --git a/spec/unit/mutant/mutator/node/named_value/variable_assignment/mutation_spec.rb b/spec/unit/mutant/mutator/node/named_value/variable_assignment/mutation_spec.rb
index 219d2924..e06405c0 100644
--- a/spec/unit/mutant/mutator/node/named_value/variable_assignment/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/named_value/variable_assignment/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::NamedValue::VariableAssignment, 'mutations' do
diff --git a/spec/unit/mutant/mutator/node/next/mutation_spec.rb b/spec/unit/mutant/mutator/node/next/mutation_spec.rb
index b35506f8..a5fdeaaa 100644
--- a/spec/unit/mutant/mutator/node/next/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/next/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'next' do
diff --git a/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb
index dcff8e81..b44ddf5b 100644
--- a/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/op_assgn/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'op_asgn' do
diff --git a/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb b/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb
index 2c5b896b..e707a519 100644
--- a/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/or_asgn/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'or_asgn' do
diff --git a/spec/unit/mutant/mutator/node/redo/mutation_spec.rb b/spec/unit/mutant/mutator/node/redo/mutation_spec.rb
index 01deab52..9723a89d 100644
--- a/spec/unit/mutant/mutator/node/redo/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/redo/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'redo' do
diff --git a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
index e99b4576..91f6d14f 100644
--- a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'rescue' do
diff --git a/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb b/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb
index 2ded7de0..8d325937 100644
--- a/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/restarg/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'restarg' do
diff --git a/spec/unit/mutant/mutator/node/return/mutation_spec.rb b/spec/unit/mutant/mutator/node/return/mutation_spec.rb
index 18cab57a..e099041c 100644
--- a/spec/unit/mutant/mutator/node/return/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/return/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'return' do
diff --git a/spec/unit/mutant/mutator/node/send/mutation_spec.rb b/spec/unit/mutant/mutator/node/send/mutation_spec.rb
index a841204a..83193bfc 100644
--- a/spec/unit/mutant/mutator/node/send/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/send/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 # FIXME: This spec needs to be structured better!
diff --git a/spec/unit/mutant/mutator/node/super/mutation_spec.rb b/spec/unit/mutant/mutator/node/super/mutation_spec.rb
index 0f3c9ed7..47304065 100644
--- a/spec/unit/mutant/mutator/node/super/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/super/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator, 'super' do
diff --git a/spec/unit/mutant/mutator/node/while/mutation_spec.rb b/spec/unit/mutant/mutator/node/while/mutation_spec.rb
index 9441e8c1..1b220ad7 100644
--- a/spec/unit/mutant/mutator/node/while/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/while/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::While do
diff --git a/spec/unit/mutant/mutator/node/yield/mutation_spec.rb b/spec/unit/mutant/mutator/node/yield/mutation_spec.rb
index 6d6eda68..47f096a6 100644
--- a/spec/unit/mutant/mutator/node/yield/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/yield/mutation_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'yield' do
diff --git a/spec/unit/mutant/node_helpers/n_not_spec.rb b/spec/unit/mutant/node_helpers/n_not_spec.rb
index 6e737e27..3487a2f1 100644
--- a/spec/unit/mutant/node_helpers/n_not_spec.rb
+++ b/spec/unit/mutant/node_helpers/n_not_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::NodeHelpers, '#n_not' do
diff --git a/spec/unit/mutant/runner/config/subjects_spec.rb b/spec/unit/mutant/runner/config/subjects_spec.rb
index 6cce1580..f70cc19f 100644
--- a/spec/unit/mutant/runner/config/subjects_spec.rb
+++ b/spec/unit/mutant/runner/config/subjects_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Runner::Config, '#subjects' do
diff --git a/spec/unit/mutant/runner/config/success_predicate_spec.rb b/spec/unit/mutant/runner/config/success_predicate_spec.rb
index 0b437e64..3d1df834 100644
--- a/spec/unit/mutant/runner/config/success_predicate_spec.rb
+++ b/spec/unit/mutant/runner/config/success_predicate_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Runner::Config, '#success?' do
diff --git a/spec/unit/mutant/runner/mutation/killer_spec.rb b/spec/unit/mutant/runner/mutation/killer_spec.rb
index 2396d691..e7e0da13 100644
--- a/spec/unit/mutant/runner/mutation/killer_spec.rb
+++ b/spec/unit/mutant/runner/mutation/killer_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Runner::Mutation, '#killer' do
diff --git a/spec/unit/mutant/runner/subject/success_predicate_spec.rb b/spec/unit/mutant/runner/subject/success_predicate_spec.rb
index 58d21519..b0bbd55d 100644
--- a/spec/unit/mutant/runner/subject/success_predicate_spec.rb
+++ b/spec/unit/mutant/runner/subject/success_predicate_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Runner::Subject, '#success?' do
diff --git a/spec/unit/mutant/strategy/method_expansion/class_methods/run_spec.rb b/spec/unit/mutant/strategy/method_expansion/class_methods/run_spec.rb
index 1a15269c..e9c08888 100644
--- a/spec/unit/mutant/strategy/method_expansion/class_methods/run_spec.rb
+++ b/spec/unit/mutant/strategy/method_expansion/class_methods/run_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Strategy::MethodExpansion, '.run' do
diff --git a/spec/unit/mutant/strategy/rspec/dm2/lookup/method/instance/spec_files_spec.rb b/spec/unit/mutant/strategy/rspec/dm2/lookup/method/instance/spec_files_spec.rb
index ab1ce701..a86c6c96 100644
--- a/spec/unit/mutant/strategy/rspec/dm2/lookup/method/instance/spec_files_spec.rb
+++ b/spec/unit/mutant/strategy/rspec/dm2/lookup/method/instance/spec_files_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 singleton = Mutant::Strategy::Rspec::DM2::Lookup::Method::Instance
diff --git a/spec/unit/mutant/strategy/rspec/dm2/lookup/method/singleton/spec_files_spec.rb b/spec/unit/mutant/strategy/rspec/dm2/lookup/method/singleton/spec_files_spec.rb
index 3023bac3..9e0f7964 100644
--- a/spec/unit/mutant/strategy/rspec/dm2/lookup/method/singleton/spec_files_spec.rb
+++ b/spec/unit/mutant/strategy/rspec/dm2/lookup/method/singleton/spec_files_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 singleton = Mutant::Strategy::Rspec::DM2::Lookup::Method::Singleton
diff --git a/spec/unit/mutant/subject/context_spec.rb b/spec/unit/mutant/subject/context_spec.rb
index 1e173c27..c7d1173f 100644
--- a/spec/unit/mutant/subject/context_spec.rb
+++ b/spec/unit/mutant/subject/context_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Subject, '#context' do
diff --git a/spec/unit/mutant/subject/mutations_spec.rb b/spec/unit/mutant/subject/mutations_spec.rb
index c54e3ff6..38159102 100644
--- a/spec/unit/mutant/subject/mutations_spec.rb
+++ b/spec/unit/mutant/subject/mutations_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Subject, '#mutations' do
diff --git a/spec/unit/mutant/subject/node_spec.rb b/spec/unit/mutant/subject/node_spec.rb
index 302e84f4..29f38224 100644
--- a/spec/unit/mutant/subject/node_spec.rb
+++ b/spec/unit/mutant/subject/node_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe Mutant::Subject, '#node' do
diff --git a/test_app/lib/test_app.rb b/test_app/lib/test_app.rb
index 1723b090..0df5bbc0 100644
--- a/test_app/lib/test_app.rb
+++ b/test_app/lib/test_app.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 # Namespace for test application
 module TestApp
 end
diff --git a/test_app/lib/test_app/literal.rb b/test_app/lib/test_app/literal.rb
index 025a726c..691b3bca 100644
--- a/test_app/lib/test_app/literal.rb
+++ b/test_app/lib/test_app/literal.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module TestApp
   # Class for integration testing literal mutations
   class Literal
diff --git a/test_app/spec/shared/method_filter_parse_behavior.rb b/test_app/spec/shared/method_filter_parse_behavior.rb
index 99cb867e..0cddb85d 100644
--- a/test_app/spec/shared/method_filter_parse_behavior.rb
+++ b/test_app/spec/shared/method_filter_parse_behavior.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 shared_examples_for 'a method filter parse result' do
   before do
     expected_class.stub(:new => response)
diff --git a/test_app/spec/shared/method_match_behavior.rb b/test_app/spec/shared/method_match_behavior.rb
index c9b16eec..cf50bf51 100644
--- a/test_app/spec/shared/method_match_behavior.rb
+++ b/test_app/spec/shared/method_match_behavior.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 shared_examples_for 'a method match' do
   subject { Mutant::Matcher::Method.parse(pattern).to_a }
 
diff --git a/test_app/spec/unit/test_app/literal/command_spec.rb b/test_app/spec/unit/test_app/literal/command_spec.rb
index 338929c0..8f8a8beb 100644
--- a/test_app/spec/unit/test_app/literal/command_spec.rb
+++ b/test_app/spec/unit/test_app/literal/command_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe TestApp::Literal, '#string' do
diff --git a/test_app/spec/unit/test_app/literal/string_spec.rb b/test_app/spec/unit/test_app/literal/string_spec.rb
index 8704f1e7..b05a421a 100644
--- a/test_app/spec/unit/test_app/literal/string_spec.rb
+++ b/test_app/spec/unit/test_app/literal/string_spec.rb
@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 require 'spec_helper'
 
 describe TestApp::Literal, '#string' do

From 1057425e1bf57b579416ef0c674e372823e2060b Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 16:23:19 -0700
Subject: [PATCH 04/36] Fix rubocop warnings in gemspec

* Add bundler as a development dependency
---
 config/rubocop.yml |  1 +
 mutant.gemspec     | 15 ++++++++-------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/config/rubocop.yml b/config/rubocop.yml
index 93d34398..2a4e4a10 100644
--- a/config/rubocop.yml
+++ b/config/rubocop.yml
@@ -3,6 +3,7 @@ AllCops:
     - '../**/*.rake'
     - 'Gemfile'
     - 'Gemfile.devtools'
+    - 'mutant.gemspec'
   Excludes:
     - '**/vendor/**'
     - '**/benchmarks/**'
diff --git a/mutant.gemspec b/mutant.gemspec
index 17cf81e8..5ac7df1e 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -1,21 +1,20 @@
-# -*- encoding: utf-8 -*-
+# encoding: utf-8
 
 Gem::Specification.new do |gem|
   gem.name        = 'mutant'
   gem.version     = '0.3.0.beta21'
-  gem.authors     = [ 'Markus Schirp' ]
-  gem.email       = [ 'mbj@schirp-dso.com' ]
-
+  gem.authors     = ['Markus Schirp']
+  gem.email       = ['mbj@schirp-dso.com']
   gem.description = 'Mutation testing for ruby'
   gem.summary     = 'Mutation testing tool for ruby under MRI and Rubinius'
   gem.homepage    = 'https://github.com/mbj/mutant'
   gem.license     = 'MIT'
 
-  gem.require_paths    = [ 'lib' ]
+  gem.require_paths    = %w[lib]
   gem.files            = `git ls-files`.split("\n")
-  gem.test_files       = `git ls-files -- spec`.split("\n")
+  gem.test_files       = `git ls-files -- spec/{unit,integration}`.split($/)
   gem.extra_rdoc_files = %w[TODO LICENSE]
-  gem.executables      = [ 'mutant' ]
+  gem.executables      = %w[mutant]
 
   gem.add_runtime_dependency('parser',              '~> 2.0.0.pre3')
   gem.add_runtime_dependency('unparser',            '~> 0.0.10')
@@ -27,4 +26,6 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency('anima',               '~> 0.0.6')
   gem.add_runtime_dependency('concord',             '~> 0.1.1')
   gem.add_runtime_dependency('rspec',               '~> 2.14.1')
+
+  gem.add_development_dependency('bundler', '~> 1.3', '>= 1.3.5')
 end

From b6964574cdf7b7554d7bee228cd7f42643a7f0fc Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 16:39:23 -0700
Subject: [PATCH 05/36] Upgrade unparser gem dependency

* Fix failing "canary" specs
* Not all mutations can be performed yet for rescue, but this is an
  improvement since it does not raise an exception.
---
 mutant.gemspec                                |  2 +-
 .../mutator/node/rescue/mutation_spec.rb      | 20 ++++++++++---------
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index 5ac7df1e..1918e526 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.executables      = %w[mutant]
 
   gem.add_runtime_dependency('parser',              '~> 2.0.0.pre3')
-  gem.add_runtime_dependency('unparser',            '~> 0.0.10')
+  gem.add_runtime_dependency('unparser',            '~> 0.0.11')
   gem.add_runtime_dependency('ice_nine',            '~> 0.8.0')
   gem.add_runtime_dependency('descendants_tracker', '~> 0.0.1')
   gem.add_runtime_dependency('adamantium',          '~> 0.0.10')
diff --git a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
index 91f6d14f..8ab1363a 100644
--- a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
@@ -3,18 +3,20 @@
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'rescue' do
-  let(:source)    { 'begin; rescue Exception => e; end' }
-  let(:mutations) { []                                  }
+  let(:source) { 'begin; rescue Exception => e; end' }
 
-  # TODO: remove once unparser is fixed
-  it 'does not raise an exception when unparsing source' do
-    pending 'unparser bug' do
-      expect { Unparser.unparse(Parser::CurrentRuby.parse(source)) }
-        .to_not raise_error
-    end
+  let(:mutations) do
+    mutations = []
+    mutations << 'begin; rescue Exception => srandom; end'
+    mutations << 'begin; rescue nil => e; end'
+    mutations << 'begin; rescue => e; end'
   end
 
-  pending 'unparser bug' do
+  before do
+    Mutant::Random.stub(:hex_string => 'random')
+  end
+
+  pending do
     it_should_behave_like 'a mutator'
   end
 end

From 47e2827adfaa9f9d54b63fea61dfe6e58b067ad8 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 17:45:40 -0700
Subject: [PATCH 06/36] Update code to be simpler

---
 spec/shared/mutator_behavior.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/spec/shared/mutator_behavior.rb b/spec/shared/mutator_behavior.rb
index 3a37b59c..4b0793ba 100644
--- a/spec/shared/mutator_behavior.rb
+++ b/spec/shared/mutator_behavior.rb
@@ -58,9 +58,7 @@ shared_examples_for 'a mutator' do
     it { should be_instance_of(to_enum.class) }
 
     let(:expected_mutations) do
-      mutations.map do |mutation|
-        Subject.coerce(mutation)
-      end
+      mutations.map(&Subject.method(:coerce))
     end
 
     let(:generated_mutations) do

From 04ffa8b86cebfbd17687cea5d45cbe38c34ce05f Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 17:45:16 -0700
Subject: [PATCH 07/36] Upgrade unparser gem dependency

* Fix now (partly) passing specs
---
 mutant.gemspec                                  |  2 +-
 .../mutant/mutator/node/ensure/mutation_spec.rb | 17 ++++++-----------
 .../mutant/mutator/node/rescue/mutation_spec.rb | 10 ++++++----
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index 1918e526..af7f5c0d 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.executables      = %w[mutant]
 
   gem.add_runtime_dependency('parser',              '~> 2.0.0.pre3')
-  gem.add_runtime_dependency('unparser',            '~> 0.0.11')
+  gem.add_runtime_dependency('unparser',            '~> 0.0.12')
   gem.add_runtime_dependency('ice_nine',            '~> 0.8.0')
   gem.add_runtime_dependency('descendants_tracker', '~> 0.0.1')
   gem.add_runtime_dependency('adamantium',          '~> 0.0.10')
diff --git a/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb b/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
index 827617c7..7ca129b0 100644
--- a/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/ensure/mutation_spec.rb
@@ -3,18 +3,13 @@
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'ensure' do
-  let(:source)    { 'begin; rescue; ensure; end' }
-  let(:mutations) { []                           }
+  let(:source)    { 'begin; rescue; ensure; true; end' }
 
-  # TODO: remove once unparser is fixed
-  it 'does not raise an exception when unparsing source' do
-    pending 'unparser bug' do
-      expect { Unparser.unparse(Parser::CurrentRuby.parse(source)) }
-        .to_not raise_error
-    end
+  let(:mutations) do
+    mutations = []
+    mutations << 'begin; rescue; ensure; false; end'
+    mutations << 'begin; rescue; ensure; nil; end'
   end
 
-  pending 'unparser bug' do
-    it_should_behave_like 'a mutator'
-  end
+  it_should_behave_like 'a mutator'
 end
diff --git a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
index 8ab1363a..e59338c3 100644
--- a/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/rescue/mutation_spec.rb
@@ -3,13 +3,15 @@
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'rescue' do
-  let(:source) { 'begin; rescue Exception => e; end' }
+  let(:source) { 'begin; rescue Exception => e; true end' }
 
   let(:mutations) do
     mutations = []
-    mutations << 'begin; rescue Exception => srandom; end'
-    mutations << 'begin; rescue nil => e; end'
-    mutations << 'begin; rescue => e; end'
+    mutations << 'begin; rescue Exception => srandom; true; end'
+    mutations << 'begin; rescue Exception => e; false; end'
+    mutations << 'begin; rescue Exception => e; nil; end'
+    mutations << 'begin; rescue nil => e; true; end'
+#    mutations << 'begin; rescue => e; true; end'  # FIXME
   end
 
   before do

From 65f8223c4235432c4b1e7a8c5eeb12a5d4e14ced Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 22:53:32 -0700
Subject: [PATCH 08/36] Replace global variable with string literal

---
 mutant.gemspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index af7f5c0d..75193970 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |gem|
 
   gem.require_paths    = %w[lib]
   gem.files            = `git ls-files`.split("\n")
-  gem.test_files       = `git ls-files -- spec/{unit,integration}`.split($/)
+  gem.test_files       = `git ls-files -- spec/{unit,integration}`.split("\n")
   gem.extra_rdoc_files = %w[TODO LICENSE]
   gem.executables      = %w[mutant]
 

From 64d8ee0e80002cab21233c2411f66540c21040f1 Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Mon, 29 Jul 2013 22:06:33 +0200
Subject: [PATCH 09/36] Update IRC channel

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 456ae670..1f23a9aa 100644
--- a/README.md
+++ b/README.md
@@ -156,7 +156,8 @@ Your options:
 
 * GitHub Issues https://github.com/mbj/mutant/issues
 * Ping me on https://twitter.com/_m_b_j_
-* #rom-rb channel on freenode, I hang around on CET daytimes. (nick mbj)
+* #mutant channel on freenode, I hang around on CET daytimes. (nick mbj) 
+  You'll also find others [ROM](https://github.com/rom-rb) team members here that can answer questions.
 
 Credits
 -------

From 94d94819f5a6eddff2e713b7f31a1aa08ed8b1ef Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Mon, 29 Jul 2013 22:16:01 +0200
Subject: [PATCH 10/36] Update travis IRC notifications

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index cafc5f7e..77a1162d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,6 @@ matrix:
 notifications:
   irc:
     channels:
-      - irc.freenode.org#rom-rb
+      - irc.freenode.org#mutant
     on_success: never
     on_failure: change

From 27e955dfb48185fbfc3336bb34ac2296f4e19376 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 16:17:25 -0700
Subject: [PATCH 11/36] Upgrade unparser gem dependency

---
 mutant.gemspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index 75193970..8241b438 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.executables      = %w[mutant]
 
   gem.add_runtime_dependency('parser',              '~> 2.0.0.pre3')
-  gem.add_runtime_dependency('unparser',            '~> 0.0.12')
+  gem.add_runtime_dependency('unparser',            '~> 0.0.13')
   gem.add_runtime_dependency('ice_nine',            '~> 0.8.0')
   gem.add_runtime_dependency('descendants_tracker', '~> 0.0.1')
   gem.add_runtime_dependency('adamantium',          '~> 0.0.10')

From ab3ec615ab8bf23b97e26596fc442a572fe2d40a Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 16:16:50 -0700
Subject: [PATCH 12/36] Fix failing spec caused by bug fix in unparser

---
 spec/unit/mutant/mutator/node/next/mutation_spec.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/spec/unit/mutant/mutator/node/next/mutation_spec.rb b/spec/unit/mutant/mutator/node/next/mutation_spec.rb
index a5fdeaaa..4bf4e406 100644
--- a/spec/unit/mutant/mutator/node/next/mutation_spec.rb
+++ b/spec/unit/mutant/mutator/node/next/mutation_spec.rb
@@ -3,8 +3,13 @@
 require 'spec_helper'
 
 describe Mutant::Mutator::Node::Generic, 'next' do
-  let(:source)    { 'next true' }
-  let(:mutations) { []          }
+  let(:source)  { 'next true' }
+
+  let(:mutations) do
+    mutations = []
+    mutations << 'next false'
+    mutations << 'next nil'
+  end
 
   it_should_behave_like 'a mutator'
 end

From 92bc48aa8acd4f739c6ef994f3ce25017cfb74e3 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 16:20:54 -0700
Subject: [PATCH 13/36] Update travis config to track coverage properly in
 jruby

* Update latest bundler to install and exclude unnecessary gems
  from the gemfile
---
 .travis.yml | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 77a1162d..9e7c3fc2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,17 +1,22 @@
 language: ruby
-script: 'bundle exec rake ci'
+before_install: gem install bundler
+bundler_args: --without yard guard benchmarks
+script: "bundle exec rake ci"
 rvm:
   - 1.9.3
   - 2.0.0
   - ruby-head
   - rbx-19mode
-  - ruby-head
-  - jruby-19mode
 matrix:
+  include:
+    - rvm: jruby-19mode
+      env: JRUBY_OPTS="$JRUBY_OPTS --debug"
+    - rvm: jruby-head
+      env: JRUBY_OPTS="$JRUBY_OPTS --debug"
   allow_failures:
-    - rvm: jruby-19mode # No fork(2) support, workaround planned
-    - rvm: ruby-head # Broken at this time, bundler issue on travis
-    - rvm: rbx-19mode # Broken at this time, yard/yardstick issue
+    - rvm: ruby-head     # Broken at this time, bundler issue on travis
+    - rvm: rbx-19mode    # Broken at this time, yard/yardstick issue
+    - rvm: jruby-19mode  # No fork(2) support, workaround planned
 notifications:
   irc:
     channels:

From c26feb786fa18759b9e3d02ed723ba3712ac85d9 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:06:10 -0700
Subject: [PATCH 14/36] Add jruby-head to list of rubies to allow failures

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 9e7c3fc2..f298c78c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,7 @@ matrix:
     - rvm: ruby-head     # Broken at this time, bundler issue on travis
     - rvm: rbx-19mode    # Broken at this time, yard/yardstick issue
     - rvm: jruby-19mode  # No fork(2) support, workaround planned
+    - rvm: jruby-head    # No fork(2) support, workaround planned
 notifications:
   irc:
     channels:

From 223b929cd485c34ff15abf0ddc0e03a2b37a45fe Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:06:49 -0700
Subject: [PATCH 15/36] Update reason that ruby-head allows failures

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index f298c78c..d90822bf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,7 +14,7 @@ matrix:
     - rvm: jruby-head
       env: JRUBY_OPTS="$JRUBY_OPTS --debug"
   allow_failures:
-    - rvm: ruby-head     # Broken at this time, bundler issue on travis
+    - rvm: ruby-head     # Broken at this time, rvm issue on travis
     - rvm: rbx-19mode    # Broken at this time, yard/yardstick issue
     - rvm: jruby-19mode  # No fork(2) support, workaround planned
     - rvm: jruby-head    # No fork(2) support, workaround planned

From 16bb6a398cdc1af863c5ca82e41f77fbbae6db43 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:08:03 -0700
Subject: [PATCH 16/36] Update unit test time threshold to 5 seconds

* No test should take this long, but I am seeing weird failures on
  travis with 1.9.3, so I want to find a threshold that works 100%
  of the time.
---
 config/devtools.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/devtools.yml b/config/devtools.yml
index f7e1f615..615bfc58 100644
--- a/config/devtools.yml
+++ b/config/devtools.yml
@@ -1,2 +1,2 @@
 ---
-unit_test_timeout: 1.0
+unit_test_timeout: 5.0

From 8f46081d5941452aff115cb1b033c24199e20929 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:17:04 -0700
Subject: [PATCH 17/36] Add encoding to ruby files

---
 Rakefile   | 3 +++
 bin/mutant | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/Rakefile b/Rakefile
index 8ba32c66..82170d8b 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,4 +1,7 @@
+# encoding: utf-8
+
 require 'devtools'
+
 Devtools.init_rake_tasks
 
 Rake.application.load_imports
diff --git a/bin/mutant b/bin/mutant
index 9248ea4a..9913d4a6 100755
--- a/bin/mutant
+++ b/bin/mutant
@@ -1,5 +1,7 @@
 #!/usr/bin/env ruby
 
+# encoding: utf-8
+
 trap('INT') do |status|
   exit! 128 + status
 end

From d675c9258d86f7bfeb21d45c13e546d5584623b7 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:33:44 -0700
Subject: [PATCH 18/36] Update path name to report the filename better on
 failure

---
 spec/unit/mutant/loader/eval/class_methods/run_spec.rb | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/spec/unit/mutant/loader/eval/class_methods/run_spec.rb b/spec/unit/mutant/loader/eval/class_methods/run_spec.rb
index 8c2f587f..1ddb6966 100644
--- a/spec/unit/mutant/loader/eval/class_methods/run_spec.rb
+++ b/spec/unit/mutant/loader/eval/class_methods/run_spec.rb
@@ -6,9 +6,9 @@ describe Mutant::Loader::Eval, '.run' do
 
   subject { object.run(node, mutation_subject) }
 
-  let(:object)           { described_class }
-  let(:path)             { 'test.rb'       }
-  let(:line)             { 1               }
+  let(:object) { described_class }
+  let(:path)   { __FILE__        }
+  let(:line)   { 1               }
 
   let(:mutation_subject) do
     double('Subject', :source_path => path, :source_line => line)
@@ -43,6 +43,6 @@ describe Mutant::Loader::Eval, '.run' do
     subject
     ::SomeNamespace::Bar
       .instance_method(:some_method)
-      .source_location.should eql(['test.rb', 3])
+      .source_location.should eql([__FILE__, 3])
   end
 end

From f8c062326548a31067892bbaac6c9275f90b6e4a Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:34:02 -0700
Subject: [PATCH 19/36] Fix whitespace

---
 lib/mutant/mutator/node.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/mutant/mutator/node.rb b/lib/mutant/mutator/node.rb
index 64a54561..39748541 100644
--- a/lib/mutant/mutator/node.rb
+++ b/lib/mutant/mutator/node.rb
@@ -1,8 +1,10 @@
 # encoding: utf-8
 
 module Mutant
+
   # Generator for mutations
   class Mutator
+
     # Abstract base class for node mutators
     class Node < self
       include AbstractType, NodeHelpers, Unparser::Constants

From 42173369908dd401f922655e6bb6ad13c6ab925b Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:34:11 -0700
Subject: [PATCH 20/36] Add rspec profiling and turn on warnings in specs

---
 .rspec | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.rspec b/.rspec
index 81e6e158..5e712d36 100644
--- a/.rspec
+++ b/.rspec
@@ -1,3 +1,5 @@
 --color
 --format progress
+--profile
+--warnings
 --order random

From 011c99d3fde0b725f15a0aa7dc6751078d414e51 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 17:39:47 -0700
Subject: [PATCH 21/36] Move encoding line to the second line where rubycop
 will find it

---
 bin/mutant | 1 -
 1 file changed, 1 deletion(-)

diff --git a/bin/mutant b/bin/mutant
index 9913d4a6..bbdc27c9 100755
--- a/bin/mutant
+++ b/bin/mutant
@@ -1,5 +1,4 @@
 #!/usr/bin/env ruby
-
 # encoding: utf-8
 
 trap('INT') do |status|

From 6236f085fb64f319f090e86d18d84a0843a492a0 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 14:43:42 -0700
Subject: [PATCH 22/36] Fix code formatting

---
 lib/mutant/cli/classifier/method.rb    | 3 ++-
 lib/mutant/cli/classifier/namespace.rb | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/mutant/cli/classifier/method.rb b/lib/mutant/cli/classifier/method.rb
index 4bb9c93f..cb36a8ea 100644
--- a/lib/mutant/cli/classifier/method.rb
+++ b/lib/mutant/cli/classifier/method.rb
@@ -3,13 +3,14 @@
 module Mutant
   class CLI
     class Classifier
+
       # Explicit method classifier
       class Method < self
         register
 
         TABLE = {
           '.' => Matcher::Methods::Singleton,
-          '#' => Matcher::Methods::Instance
+          '#' => Matcher::Methods::Instance,
         }.freeze
 
         REGEXP =
diff --git a/lib/mutant/cli/classifier/namespace.rb b/lib/mutant/cli/classifier/namespace.rb
index 27be7509..fe23c7ae 100644
--- a/lib/mutant/cli/classifier/namespace.rb
+++ b/lib/mutant/cli/classifier/namespace.rb
@@ -31,15 +31,17 @@ module Mutant
 
         # Recursive namespace classifier
         class Recursive < self
-          REGEXP = /\A(#{SCOPE_PATTERN})\*\z/.freeze
+          REGEXP  = /\A(#{SCOPE_PATTERN})\*\z/.freeze
           MATCHER = Matcher::Namespace
+
           register
         end # Recursive
 
         # Recursive namespace classifier
         class Flat < self
-          REGEXP = /\A(#{SCOPE_PATTERN})\z/.freeze
+          REGEXP  = /\A(#{SCOPE_PATTERN})\z/.freeze
           MATCHER = Matcher::Scope
+
           register
         end # Flat
 

From df172e704ea7149f16565b893fd2e290c4fbcfd1 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 14:09:22 -0700
Subject: [PATCH 23/36] Refactor scope and method regexps

---
 lib/mutant/cli/classifier.rb        | 24 ++++++++++++++----------
 lib/mutant/cli/classifier/method.rb |  9 +++++++--
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/lib/mutant/cli/classifier.rb b/lib/mutant/cli/classifier.rb
index 91ec353c..2839b3cb 100644
--- a/lib/mutant/cli/classifier.rb
+++ b/lib/mutant/cli/classifier.rb
@@ -8,15 +8,19 @@ module Mutant
 
       include Equalizer.new(:identifier)
 
-      SCOPE_NAME_PATTERN  = /[A-Za-z][A-Za-z_0-9]*/.freeze
-      OPERATOR_PATTERN    = Regexp.union(*OPERATOR_METHODS.map(&:to_s)).freeze
-      METHOD_NAME_PATTERN =
-        /([_A-Za-z][A-Za-z0-9_]*[!?=]?|#{OPERATOR_PATTERN})/.freeze
-      SCOPE_PATTERN =
-        /(?:::)?#{SCOPE_NAME_PATTERN}(?:::#{SCOPE_NAME_PATTERN})*/.freeze
-      CBASE_PATTERN       = /\A::/.freeze
-      SCOPE_OPERATOR      = '::'.freeze
-      SINGLETON_PATTERN   = /\A(#{SCOPE_PATTERN})\z/.freeze
+      SCOPE_NAME_PATTERN = /[A-Za-z][A-Za-z\d_]*/.freeze
+      SCOPE_OPERATOR     = '::'.freeze
+      CBASE_PATTERN      = /\A#{SCOPE_OPERATOR}/.freeze
+
+      METHOD_NAME_PATTERN = Regexp.union(
+        /[A-Za-z_][A-Za-z\d_]*[!?=]?/,
+        *OPERATOR_METHODS.map(&:to_s)
+      ).freeze
+
+      SCOPE_PATTERN = /
+        (?:#{SCOPE_OPERATOR})?#{SCOPE_NAME_PATTERN}
+        (?:#{SCOPE_OPERATOR}#{SCOPE_NAME_PATTERN})*
+      /x.freeze
 
       REGISTRY = []
 
@@ -41,7 +45,7 @@ module Mutant
       #
       def self.constant_lookup(location)
         location
-          .gsub(CBASE_PATTERN, EMPTY_STRING)
+          .sub(CBASE_PATTERN, EMPTY_STRING)
           .split(SCOPE_OPERATOR)
           .reduce(Object) do |parent, name|
             parent.const_get(name)
diff --git a/lib/mutant/cli/classifier/method.rb b/lib/mutant/cli/classifier/method.rb
index cb36a8ea..72842f08 100644
--- a/lib/mutant/cli/classifier/method.rb
+++ b/lib/mutant/cli/classifier/method.rb
@@ -13,8 +13,13 @@ module Mutant
           '#' => Matcher::Methods::Instance,
         }.freeze
 
-        REGEXP =
-          %r(\A(#{SCOPE_PATTERN})([.#])(#{METHOD_NAME_PATTERN}\z)).freeze
+        REGEXP = /
+          \A
+            (#{SCOPE_PATTERN})
+            ([.#])
+            (#{METHOD_NAME_PATTERN})
+          \z
+        /x.freeze
 
         # Positions of captured regexp groups
         SCOPE_NAME_POSITION   = 1

From 97aefb18764e44da7195f9dc642a6206c7731b66 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 14:39:38 -0700
Subject: [PATCH 24/36] Change Mutant::CLI::Classifier#matcher to be private

---
 lib/mutant/cli/classifier.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/mutant/cli/classifier.rb b/lib/mutant/cli/classifier.rb
index 2839b3cb..73c98ec1 100644
--- a/lib/mutant/cli/classifier.rb
+++ b/lib/mutant/cli/classifier.rb
@@ -130,6 +130,7 @@ module Mutant
       # @api private
       #
       abstract_method :matcher
+      private         :matcher
 
     end # Classifier
   end # CLI

From d922e14e02bbc82ec9a5361049698657ba0d5c3f Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 14:31:05 -0700
Subject: [PATCH 25/36] Change Mutant::CLI::Classifier::Method#matcher to be
 private

---
 lib/mutant/cli/classifier/method.rb | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/lib/mutant/cli/classifier/method.rb b/lib/mutant/cli/classifier/method.rb
index 72842f08..2435d84f 100644
--- a/lib/mutant/cli/classifier/method.rb
+++ b/lib/mutant/cli/classifier/method.rb
@@ -26,17 +26,6 @@ module Mutant
         SCOPE_SYMBOL_POSITION = 2
         METHOD_NAME_POSITION  = 3
 
-        # Return method matcher
-        #
-        # @return [Matcher::Method]
-        #
-        # @api private
-        #
-        def matcher
-          methods_matcher.matcher.build(cache, scope, method)
-        end
-        memoize :matcher
-
         # Return identification
         #
         # @return [String]
@@ -49,6 +38,17 @@ module Mutant
 
       private
 
+        # Return method matcher
+        #
+        # @return [Matcher::Method]
+        #
+        # @api private
+        #
+        def matcher
+          methods_matcher.matcher.build(cache, scope, method)
+        end
+        memoize :matcher
+
         # Return method
         #
         # @return [Method, UnboundMethod]

From 85aabae109a3b9af53d47161e8db50a62d99922d Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 14:38:19 -0700
Subject: [PATCH 26/36] Remove Mutant::CLI::Classifier::Method#identification

* This is a duplicate of #identifer in the parent class
---
 lib/mutant/cli/classifier/method.rb | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/lib/mutant/cli/classifier/method.rb b/lib/mutant/cli/classifier/method.rb
index 2435d84f..7e30d7fb 100644
--- a/lib/mutant/cli/classifier/method.rb
+++ b/lib/mutant/cli/classifier/method.rb
@@ -26,16 +26,6 @@ module Mutant
         SCOPE_SYMBOL_POSITION = 2
         METHOD_NAME_POSITION  = 3
 
-        # Return identification
-        #
-        # @return [String]
-        #
-        # @api private
-        #
-        def identification
-          match.to_s
-        end
-
       private
 
         # Return method matcher
@@ -58,7 +48,7 @@ module Mutant
         def method
           methods_matcher.methods.detect do |method|
             method.name == method_name
-          end or raise("Cannot find method #{identification}")
+          end or raise "Cannot find method #{identifier}"
         end
         memoize :method, :freezer => :noop
 

From f3061f77c8fbf00e40f8dda8c78d0aa0fefed4d3 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 15:55:52 -0700
Subject: [PATCH 27/36] Update method not found to raise a NameError

---
 lib/mutant/cli/classifier/method.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/mutant/cli/classifier/method.rb b/lib/mutant/cli/classifier/method.rb
index 7e30d7fb..4abfbeee 100644
--- a/lib/mutant/cli/classifier/method.rb
+++ b/lib/mutant/cli/classifier/method.rb
@@ -48,7 +48,7 @@ module Mutant
         def method
           methods_matcher.methods.detect do |method|
             method.name == method_name
-          end or raise "Cannot find method #{identifier}"
+          end or raise NameError, "Cannot find method #{identifier}"
         end
         memoize :method, :freezer => :noop
 

From 94e532254115a28cd3e46cd474fef777406bd83c Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Sun, 28 Jul 2013 12:33:21 -0700
Subject: [PATCH 28/36] Update constant lookup to use stricter approach

---
 lib/mutant/cli/classifier.rb                  |  2 +-
 .../mutant/cli/classifier/method/each_spec.rb | 89 +++++++++++++++++++
 .../classifier/namespace/flat/each_spec.rb    | 58 ++++++++++++
 .../namespace/recursive/each_spec.rb          | 58 ++++++++++++
 .../mutant/cli/classifier/scope/each_spec.rb  | 33 +++++++
 5 files changed, 239 insertions(+), 1 deletion(-)
 create mode 100644 spec/unit/mutant/cli/classifier/method/each_spec.rb
 create mode 100644 spec/unit/mutant/cli/classifier/namespace/flat/each_spec.rb
 create mode 100644 spec/unit/mutant/cli/classifier/namespace/recursive/each_spec.rb
 create mode 100644 spec/unit/mutant/cli/classifier/scope/each_spec.rb

diff --git a/lib/mutant/cli/classifier.rb b/lib/mutant/cli/classifier.rb
index 73c98ec1..8c448feb 100644
--- a/lib/mutant/cli/classifier.rb
+++ b/lib/mutant/cli/classifier.rb
@@ -48,7 +48,7 @@ module Mutant
           .sub(CBASE_PATTERN, EMPTY_STRING)
           .split(SCOPE_OPERATOR)
           .reduce(Object) do |parent, name|
-            parent.const_get(name)
+            parent.const_get(name, nil)
           end
       end
 
diff --git a/spec/unit/mutant/cli/classifier/method/each_spec.rb b/spec/unit/mutant/cli/classifier/method/each_spec.rb
new file mode 100644
index 00000000..83fcd6b6
--- /dev/null
+++ b/spec/unit/mutant/cli/classifier/method/each_spec.rb
@@ -0,0 +1,89 @@
+# encoding: utf-8
+
+require 'spec_helper'
+
+describe Mutant::CLI::Classifier::Method, '#each' do
+  let(:object)           { described_class.build(cache, input) }
+  let(:cache)            { Mutant::Cache.new                   }
+  let(:instance_method)  { '::TestApp::Literal#string'         }
+  let(:singleton_method) { '::TestApp::Literal.string'         }
+  let(:unknown_method)   { '::TestApp::Literal#unknown'        }
+
+  context 'with a block' do
+    subject { object.each {} }
+
+    context 'with an instance method name' do
+      let(:input) { instance_method }
+
+      it_behaves_like 'a command method'
+
+      it 'yield an instance subject' do
+        expect { |block| object.each(&block) }
+          .to yield_with_args(Mutant::Subject::Method::Instance)
+      end
+    end
+
+    context 'with an singleton method name' do
+      let(:input) { singleton_method }
+
+      it_behaves_like 'a command method'
+
+      it 'yield an instance subject' do
+        expect { |block| object.each(&block) }
+          .to yield_with_args(Mutant::Subject::Method::Singleton)
+      end
+    end
+
+    context 'with an unknown method' do
+      let(:input) { unknown_method }
+
+      it 'raises an exception' do
+        expect { subject }
+          .to raise_error(NameError, "Cannot find method #{input}")
+      end
+    end
+  end
+
+  context 'without a block' do
+    subject { object.each }
+
+    context 'with an instance method name' do
+      let(:input) { instance_method }
+
+      it 'returns an enumerator' do
+        should be_instance_of(to_enum.class)
+      end
+
+      it 'yield an instance subject' do
+        expect { |block| subject.each(&block) }
+          .to yield_with_args(Mutant::Subject::Method::Instance)
+      end
+    end
+
+    context 'with an singleton method name' do
+      let(:input) { singleton_method }
+
+      it 'returns an enumerator' do
+        should be_instance_of(to_enum.class)
+      end
+
+      it 'yield an instance subject' do
+        expect { |block| subject.each(&block) }
+          .to yield_with_args(Mutant::Subject::Method::Singleton)
+      end
+    end
+
+    context 'with an unknown method' do
+      let(:input) { unknown_method }
+
+      it 'returns an enumerator' do
+        should be_instance_of(to_enum.class)
+      end
+
+      it 'raises an exception when #each is called' do
+        expect { subject.each {} }
+          .to raise_error(NameError, "Cannot find method #{input}")
+      end
+    end
+  end
+end
diff --git a/spec/unit/mutant/cli/classifier/namespace/flat/each_spec.rb b/spec/unit/mutant/cli/classifier/namespace/flat/each_spec.rb
new file mode 100644
index 00000000..ee045430
--- /dev/null
+++ b/spec/unit/mutant/cli/classifier/namespace/flat/each_spec.rb
@@ -0,0 +1,58 @@
+# encoding: utf-8
+
+require 'spec_helper'
+
+describe Mutant::CLI::Classifier::Namespace::Flat, '#each' do
+  let(:object)            { described_class.build(cache, input) }
+  let(:cache)             { Mutant::Cache.new                   }
+  let(:known_namespace)   { '::TestApp::Literal'                }
+  let(:unknown_namespace) { '::TestApp::Object'                 }
+
+  context 'with a block' do
+    subject { object.each {} }
+
+    context 'with a known namespace' do
+      let(:input) { known_namespace }
+
+      it_behaves_like 'a command method'
+
+      it 'yield method subjects' do
+        expect { |block| object.each(&block) }
+          .to yield_control.exactly(7).times
+      end
+    end
+
+    context 'with an unknown namespace' do
+      let(:input) { unknown_namespace }
+
+      it 'raises an exception' do
+        expect { subject }.to raise_error(NameError)
+      end
+    end
+  end
+
+  context 'without a block' do
+   subject { object.each }
+
+    context 'with a known namespace' do
+      let(:input) { known_namespace }
+
+      it 'returns an enumerator' do
+        should be_instance_of(to_enum.class)
+      end
+
+      it 'yield an instance subject' do
+        expect { |block| object.each(&block) }
+          .to yield_control.exactly(7).times
+      end
+    end
+
+    context 'with an unknown namespace' do
+      let(:input) { unknown_namespace }
+
+      it 'raises an exception when #each is called' do
+        expect { subject.each {} }.to raise_error(NameError)
+      end
+    end
+  end
+end
diff --git a/spec/unit/mutant/cli/classifier/namespace/recursive/each_spec.rb b/spec/unit/mutant/cli/classifier/namespace/recursive/each_spec.rb
new file mode 100644
index 00000000..a1da8801
--- /dev/null
+++ b/spec/unit/mutant/cli/classifier/namespace/recursive/each_spec.rb
@@ -0,0 +1,58 @@
+# encoding: utf-8
+
+require 'spec_helper'
+
+describe Mutant::CLI::Classifier::Namespace::Recursive, '#each' do
+  let(:object)            { described_class.build(cache, "#{input}*") }
+  let(:cache)             { Mutant::Cache.new                         }
+  let(:known_namespace)   { '::TestApp::Literal'                      }
+  let(:unknown_namespace) { '::TestApp::Object'                       }
+
+  context 'with a block' do
+    subject { object.each {} }
+
+    context 'with a known namespace' do
+      let(:input) { known_namespace }
+
+      it_behaves_like 'a command method'
+
+      it 'yield method subjects' do
+        expect { |block| object.each(&block) }
+          .to yield_control.exactly(7).times
+      end
+    end
+
+    context 'with an unknown namespace' do
+      let(:input) { unknown_namespace }
+
+      it 'raises an exception' do
+        expect { subject }.to raise_error(NameError)
+      end
+    end
+  end
+
+  context 'without a block' do
+   subject { object.each }
+
+    context 'with a known namespace' do
+      let(:input) { known_namespace }
+
+      it 'returns an enumerator' do
+        should be_instance_of(to_enum.class)
+      end
+
+      it 'yield an instance subject' do
+        expect { |block| object.each(&block) }
+          .to yield_control.exactly(7).times
+      end
+    end
+
+    context 'with an unknown namespace' do
+      let(:input) { unknown_namespace }
+
+      it 'raises an exception when #each is called' do
+        expect { subject.each {} }.to raise_error(NameError)
+      end
+    end
+  end
+end
diff --git a/spec/unit/mutant/cli/classifier/scope/each_spec.rb b/spec/unit/mutant/cli/classifier/scope/each_spec.rb
new file mode 100644
index 00000000..ba18cf9c
--- /dev/null
+++ b/spec/unit/mutant/cli/classifier/scope/each_spec.rb
@@ -0,0 +1,33 @@
+# encoding: utf-8
+
+require 'spec_helper'
+
+describe Mutant::CLI::Classifier::Scope, '#each' do
+  let(:object) { described_class.build(cache, input) }
+  let(:cache)  { Mutant::Cache.new                   }
+  let(:input)  { ::TestApp::Literal                  }
+
+  context 'with a block' do
+    subject { object.each {} }
+
+    it_behaves_like 'a command method'
+
+    it 'yield method subjects' do
+      expect { |block| object.each(&block) }
+        .to yield_control.exactly(7).times
+    end
+  end
+
+  context 'without a block' do
+   subject { object.each }
+
+    it 'returns an enumerator' do
+      should be_instance_of(to_enum.class)
+    end
+
+    it 'yield an instance subject' do
+      expect { |block| object.each(&block) }
+        .to yield_control.exactly(7).times
+    end
+  end
+end

From e34ba860cc168c805c77ebeb45e2f461860616a9 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Mon, 29 Jul 2013 15:58:32 -0700
Subject: [PATCH 29/36] Update metrics thresholds

---
 config/flay.yml     | 2 +-
 spec/spec_helper.rb | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/config/flay.yml b/config/flay.yml
index 9892b938..5ce82f59 100644
--- a/config/flay.yml
+++ b/config/flay.yml
@@ -1,3 +1,3 @@
 ---
 threshold: 16
-total_score: 773
+total_score: 764
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index ca215b0a..d1b261e4 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -17,7 +17,7 @@ if ENV['COVERAGE'] == 'true'
     add_filter       'config'
     add_filter       'spec'
     add_filter       'test_app'
-    minimum_coverage 88.74  # TODO: raise this to 100, then mutation test
+    minimum_coverage 89.56  # TODO: raise this to 100, then mutation test
   end
 end
 

From 30f257db18d162184b85c747ec525aa69c647134 Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Tue, 30 Jul 2013 10:40:05 +0200
Subject: [PATCH 30/36] Bump version to 0.3.0.beta22

---
 mutant.gemspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index 8241b438..27a0cfbe 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |gem|
   gem.name        = 'mutant'
-  gem.version     = '0.3.0.beta21'
+  gem.version     = '0.3.0.beta22'
   gem.authors     = ['Markus Schirp']
   gem.email       = ['mbj@schirp-dso.com']
   gem.description = 'Mutation testing for ruby'

From 8ba03a02f9967d53c11b55a407e24d86756707f4 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Tue, 30 Jul 2013 02:22:02 -0700
Subject: [PATCH 31/36] Fix whitespace

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 1f23a9aa..321fb983 100644
--- a/README.md
+++ b/README.md
@@ -156,7 +156,7 @@ Your options:
 
 * GitHub Issues https://github.com/mbj/mutant/issues
 * Ping me on https://twitter.com/_m_b_j_
-* #mutant channel on freenode, I hang around on CET daytimes. (nick mbj) 
+* #mutant channel on freenode, I hang around on CET daytimes. (nick mbj)
   You'll also find others [ROM](https://github.com/rom-rb) team members here that can answer questions.
 
 Credits

From 2b6eba8ad3b36e550865889ef5282ffdc166c940 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Tue, 30 Jul 2013 02:14:27 -0700
Subject: [PATCH 32/36] Refactor conditional logic to use a boolean connective

* Change the guard clause into a simple if/else block. I believe a
  guard clause is only useful if it happens before the majority of
  the code in the method. In this case it adds nothing, and is
  probably more difficult to understand.
---
 lib/mutant/matcher/method.rb | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/mutant/matcher/method.rb b/lib/mutant/matcher/method.rb
index cd6c54e8..bb8bd487 100644
--- a/lib/mutant/matcher/method.rb
+++ b/lib/mutant/matcher/method.rb
@@ -54,16 +54,16 @@ module Mutant
       #
       def skip?
         location = source_location
-        if location.nil? or BLACKLIST.match(location.first)
+        if location.nil? || BLACKLIST.match(location.first)
           message = sprintf(
             '%s does not have valid source location unable to emit matcher',
             method.inspect
           )
           $stderr.puts(message)
-          return true
+          true
+        else
+          false
         end
-
-        false
       end
 
       # Return method name

From 181abdc501e237212abcf8f8c02c2354e24e7737 Mon Sep 17 00:00:00 2001
From: Dan Kubb <dan.kubb@gmail.com>
Date: Wed, 31 Jul 2013 11:35:25 -0700
Subject: [PATCH 33/36] Move rvm section into matrix/include

* This is a test to see if we can remove the rvm section from travis
  config and just keep everything under matrix/include for
  consistency.
---
 .travis.yml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index d90822bf..0cf376fa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,13 +2,12 @@ language: ruby
 before_install: gem install bundler
 bundler_args: --without yard guard benchmarks
 script: "bundle exec rake ci"
-rvm:
-  - 1.9.3
-  - 2.0.0
-  - ruby-head
-  - rbx-19mode
 matrix:
   include:
+    - rvm: 1.9.3
+    - rvm: 2.0.0
+    - rvm: ruby-head
+    - rvm: rbx-19mode
     - rvm: jruby-19mode
       env: JRUBY_OPTS="$JRUBY_OPTS --debug"
     - rvm: jruby-head

From 1aad731de0bf0e67e1cb0f22766a6161c4bf9876 Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Wed, 31 Jul 2013 22:08:50 +0200
Subject: [PATCH 34/36] Bump parser dependency ~> 2.0.0.pre5

---
 mutant.gemspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index 27a0cfbe..f2f7cac1 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.extra_rdoc_files = %w[TODO LICENSE]
   gem.executables      = %w[mutant]
 
-  gem.add_runtime_dependency('parser',              '~> 2.0.0.pre3')
+  gem.add_runtime_dependency('parser',              '~> 2.0.0.pre5')
   gem.add_runtime_dependency('unparser',            '~> 0.0.13')
   gem.add_runtime_dependency('ice_nine',            '~> 0.8.0')
   gem.add_runtime_dependency('descendants_tracker', '~> 0.0.1')

From 1fae013bd4bc7fccc4be50be12b72cb60e40fdd3 Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Wed, 31 Jul 2013 22:09:05 +0200
Subject: [PATCH 35/36] Bump unparser dependency to ~> 0.0.14

---
 mutant.gemspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index f2f7cac1..ae65261f 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.executables      = %w[mutant]
 
   gem.add_runtime_dependency('parser',              '~> 2.0.0.pre5')
-  gem.add_runtime_dependency('unparser',            '~> 0.0.13')
+  gem.add_runtime_dependency('unparser',            '~> 0.0.14')
   gem.add_runtime_dependency('ice_nine',            '~> 0.8.0')
   gem.add_runtime_dependency('descendants_tracker', '~> 0.0.1')
   gem.add_runtime_dependency('adamantium',          '~> 0.0.10')

From 82454f15d9c6b0544e207250657a882bd2e833a7 Mon Sep 17 00:00:00 2001
From: Markus Schirp <mbj@schirp-dso.com>
Date: Wed, 31 Jul 2013 22:09:40 +0200
Subject: [PATCH 36/36] Bump concord dependency to ~> 0.1.3

---
 mutant.gemspec | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mutant.gemspec b/mutant.gemspec
index ae65261f..7e5e66c4 100644
--- a/mutant.gemspec
+++ b/mutant.gemspec
@@ -24,7 +24,7 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency('equalizer',           '~> 0.0.5')
   gem.add_runtime_dependency('inflecto',            '~> 0.0.2')
   gem.add_runtime_dependency('anima',               '~> 0.0.6')
-  gem.add_runtime_dependency('concord',             '~> 0.1.1')
+  gem.add_runtime_dependency('concord',             '~> 0.1.3')
   gem.add_runtime_dependency('rspec',               '~> 2.14.1')
 
   gem.add_development_dependency('bundler', '~> 1.3', '>= 1.3.5')