Added test cases and rakefile to Active Support

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@310 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/Rakefile

@@ -0,0 +1,6 @@
+require 'rake/testtask'
+
+task :default => :test
+Rake::TestTask.new { |t| 
+  t.pattern = 'test/*_test.rb'
+}

activesupport/lib/misc.rb

@@ -1,6 +1,32 @@
 def silence_warnings
   old_verbose, $VERBOSE = $VERBOSE, nil
-  result = yield
-  $VERBOSE = old_verbose
-  return result
+  begin
+    yield
+  ensure
+    $VERBOSE = old_verbose
+  end
+end
+
+class Hash
+  # Return a new hash with all keys converted to symbols.
+  def symbolize_keys
+    inject({}) do |options, (key, value)|
+      options[key.to_sym] = value
+      options
+    end
+  end
+
+  # Destructively convert all keys to symbols.
+  def symbolize_keys!
+    keys.each do |key|
+      unless key.is_a?(Symbol)
+        self[key.to_sym] = self[key]
+        delete(key)
+      end
+    end
+    self
+  end
+
+  alias_method :to_options,  :symbolize_keys
+  alias_method :to_options!, :symbolize_keys!
 end

activesupport/test/dependencies_test.rb

@@ -1,7 +1,9 @@
-require File.dirname(__FILE__) + '/../abstract_unit'
-require 'action_controller/support/dependencies'
+require 'test/unit'
+$LOAD_PATH.unshift File.dirname(__FILE__) + '/../lib'
+require 'misc'
+require 'dependencies'
 
-$LOAD_PATH << File.dirname(__FILE__) + '/../fixtures/dependencies'
+$LOAD_PATH.unshift File.dirname(__FILE__) + '/dependencies'
 
 class DependenciesTest < Test::Unit::TestCase
   def teardown

activesupport/test/inflector_test.rb

@@ -1,4 +1,5 @@
-require 'abstract_unit'
+require 'test/unit'
+require File.dirname(__FILE__) + '/../lib/inflector'
 
 class InflectorTest < Test::Unit::TestCase
   SingularToPlural = {

activesupport/test/misc_test.rb

@@ -0,0 +1,51 @@
+require 'test/unit'
+require File.dirname(__FILE__) + '/../lib/misc'
+
+class MiscTest < Test::Unit::TestCase
+  def test_silence_warnings
+    silence_warnings { assert_nil $VERBOSE }
+    assert_equal 1234, silence_warnings { 1234 }
+  end
+
+  def test_silence_warnings_verbose_invariant
+    old_verbose = $VERBOSE
+    begin
+      silence_warnings { raise }
+      flunk
+    rescue
+      assert_equal old_verbose, $VERBOSE
+    end
+  end
+end
+
+class HashOptionsTest < Test::Unit::TestCase
+  def setup
+    @strings = { 'a' => 1, 'b' => 2 }
+    @symbols = { :a  => 1, :b  => 2 }
+    @mixed   = { :a  => 1, 'b' => 2 }
+  end
+
+  def test_methods
+    h = {}
+    assert_respond_to h, :symbolize_keys
+    assert_respond_to h, :symbolize_keys!
+    assert_respond_to h, :to_options
+    assert_respond_to h, :to_options!
+  end
+
+  def test_symbolize_keys
+    assert_equal @symbols, @symbols.symbolize_keys
+    assert_equal @symbols, @strings.symbolize_keys
+    assert_equal @symbols, @mixed.symbolize_keys
+
+    assert_raises(NoMethodError) { { [] => 1 }.symbolize_keys }
+  end
+
+  def test_symbolize_keys!
+    assert_equal @symbols, @symbols.dup.symbolize_keys!
+    assert_equal @symbols, @strings.dup.symbolize_keys!
+    assert_equal @symbols, @mixed.dup.symbolize_keys!
+
+    assert_raises(NoMethodError) { { [] => 1 }.symbolize_keys! }
+  end
+end