Added :instance_writer option to #mattr_writer/accessor, #cattr_writer/accessor, and #class_inheritable_writer to skip the creation of the instance writer. [Rick]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6050 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 33 insertions, 0 deletions

diff --git a/activesupport/test/core_ext/module/attribute_accessor_test.rb b/activesupport/test/core_ext/module/attribute_accessor_test.rb
new file mode 100644
index 0000000000..c3f6575f84
--- /dev/null
+++ b/activesupport/test/core_ext/module/attribute_accessor_test.rb
@@ -0,0 +1,33 @@
+require File.dirname(__FILE__) + '/../../abstract_unit'
+
+class ModuleAttributeAccessorTest < Test::Unit::TestCase
+  def setup
+    @module = Module.new do
+      mattr_accessor :foo
+      mattr_accessor :bar, :instance_writer => false
+    end
+    @class = Class.new
+    @class.send :include, @module
+    @object = @class.new
+  end
+  
+  def test_should_use_mattr_default
+    assert_nil @module.foo
+    assert_nil @object.foo
+  end
+  
+  def test_should_set_mattr_value
+    @module.foo = :test
+    assert_equal :test, @object.foo
+  
+    @object.foo = :test2
+    assert_equal :test2, @module.foo
+  end
+  
+  def test_should_not_create_instance_writer
+    assert @module.respond_to?(:foo)
+    assert @module.respond_to?(:foo=)
+    assert @object.respond_to?(:bar)
+    assert !@object.respond_to?(:bar=)
+  end
+end
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