Add mbj/auom to corpus test with mutation coverage

* Once mutant can read a config file by its own I'll make the
  integration more beautiful.
* Closes #51

spec/integration/mutant/corpus_spec.rb

@@ -17,9 +17,31 @@ describe 'Mutant on ruby corpus' do
   MUTEX = Mutex.new
 
   class Project
-    include Anima.new(:name, :repo_uri, :exclude)
+    include Adamantium, Anima.new(:name, :repo_uri, :exclude, :mutation_coverage, :mutation_generation, :namespace, :expect_coverage)
 
-    # Perform verification via unparser cli
+    # Verify mutation coverage
+    #
+    # @return [self]
+    #   if successufl
+    #
+    # @raise [Exception]
+    #
+    def verify_mutation_coverage
+      checkout
+      Dir.chdir(repo_path) do
+        relative = ROOT.relative_path_from(repo_path)
+        devtools = ROOT.join('Gemfile.devtools').read
+        devtools << "gem 'mutant', path: '#{relative}'\n"
+        devtools << "gem 'mutant-rspec', path: '#{relative}'\n"
+        File.write(repo_path.join('Gemfile.devtools'), devtools)
+        Bundler.with_clean_env do
+          system('bundle install')
+          system(%W[bundle exec mutant -I lib -r #{name} --score #{expect_coverage} --use rspec #{namespace}*])
+        end
+      end
+    end
+
+    # Verify mutation generation
     #
     # @return [self]
     #   if successful
@@ -28,7 +50,7 @@ describe 'Mutant on ruby corpus' do
     #   otherwise
     #
     # rubocop:disable MethodLength
-    def verify
+    def verify_mutation_generation
       checkout
       start = Time.now
       paths = Pathname.glob(repo_path.join('**/*.rb')).sort_by(&:size).reverse
@@ -75,6 +97,7 @@ describe 'Mutant on ruby corpus' do
       end
       self
     end
+    memoize :checkout
 
   private
 
@@ -138,15 +161,19 @@ describe 'Mutant on ruby corpus' do
           s(:block,
             s(:guard, s(:primitive, Hash)),
             s(:hash_transform,
-              s(:key_symbolize, :repo_uri, s(:guard, s(:primitive, String))),
-              s(:key_symbolize, :name,     s(:guard, s(:primitive, String))),
-              s(:key_symbolize, :exclude,  s(:map, s(:guard, s(:primitive, String))))
+              s(:key_symbolize, :repo_uri,            s(:guard, s(:primitive, String))),
+              s(:key_symbolize, :name,                s(:guard, s(:primitive, String))),
+              s(:key_symbolize, :namespace,           s(:guard, s(:primitive, String))),
+              s(:key_symbolize, :expect_coverage,     s(:guard, s(:primitive, Float))),
+              s(:key_symbolize, :mutation_coverage,   s(:guard, s(:or, s(:primitive, TrueClass), s(:primitive, FalseClass)))),
+              s(:key_symbolize, :mutation_generation, s(:guard, s(:or, s(:primitive, TrueClass), s(:primitive, FalseClass)))),
+              s(:key_symbolize, :exclude,             s(:map, s(:guard, s(:primitive, String))))
             ),
             s(:load_attribute_hash,
               # NOTE: The domain param has no DSL currently!
               Morpher::Evaluator::Transformer::Domain::Param.new(
                 Project,
-                [:repo_uri, :name, :exclude]
+                [:repo_uri, :name, :exclude, :mutation_coverage, :mutation_generation]
               )
             )
           )
@@ -157,9 +184,15 @@ describe 'Mutant on ruby corpus' do
     ALL = LOADER.call(YAML.load_file(ROOT.join('spec', 'integrations.yml')))
   end
 
-  Project::ALL.each do |project|
-    specify "unparsing #{project.name}" do
-      project.verify
+  Project::ALL.select(&:mutation_generation).each do |project|
+    specify "#{project.name} does not fail on mutation generation" do
+      project.verify_mutation_generation
+    end
+  end
+
+  Project::ALL.select(&:mutation_coverage).each do |project|
+    specify "#{project.name} does have expected mutaiton coverage" do
+      project.verify_mutation_coverage
     end
   end
 end

spec/integrations.yml

@@ -1,6 +1,10 @@
 ---
 - name: rubyspec
+  namespace: Rubyspec
   repo_uri: 'https://github.com/rubyspec/rubyspec.git'
+  mutation_coverage: false
+  mutation_generation: true
+  expect_coverage: 0.0 # not run
   exclude:
     # Binary encoded source subjected to limitations see README of unparser
     - core/array/pack/{b,h,u}_spec.rb
@@ -22,5 +26,9 @@
     - core/symbol/casecmp_spec.rb
     - optional/capi/integer_spec.rb
 - name: auom
+  namespace: AUOM
   repo_uri: 'https://github.com/mbj/auom.git'
+  mutation_coverage: true
+  mutation_generation: true
   exclude: []
+  expect_coverage: 99.81