diff options
Diffstat (limited to 'activesupport/test/core_ext/object_and_class_ext_test.rb')
-rw-r--r-- | activesupport/test/core_ext/object_and_class_ext_test.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/object_and_class_ext_test.rb b/activesupport/test/core_ext/object_and_class_ext_test.rb index 0b2a9c418e..f31e7774e9 100644 --- a/activesupport/test/core_ext/object_and_class_ext_test.rb +++ b/activesupport/test/core_ext/object_and_class_ext_test.rb @@ -1,6 +1,7 @@ require 'abstract_unit' require 'active_support/time' require 'active_support/core_ext/object' +require 'active_support/core_ext/class/subclasses' class ClassA; end class ClassB < ClassA; end @@ -39,6 +40,55 @@ class Foo include Bar end +class ClassExtTest < Test::Unit::TestCase + def test_subclasses_of_should_find_nested_classes + assert Class.subclasses_of(ClassK).include?(Nested::ClassL) + end + + def test_subclasses_of_should_not_return_removed_classes + # First create the removed class + old_class = Nested.class_eval { remove_const :ClassL } + new_class = Class.new(ClassK) + Nested.const_set :ClassL, new_class + assert_equal "Nested::ClassL", new_class.name # Sanity check + + subclasses = Class.subclasses_of(ClassK) + assert subclasses.include?(new_class) + assert ! subclasses.include?(old_class) + ensure + Nested.const_set :ClassL, old_class unless defined?(Nested::ClassL) + end + + def test_subclasses_of_should_not_trigger_const_missing + const_missing = false + Nested.on_const_missing { const_missing = true } + + subclasses = Class.subclasses_of ClassK + assert !const_missing + assert_equal [ Nested::ClassL ], subclasses + + removed = Nested.class_eval { remove_const :ClassL } # keep it in memory + subclasses = Class.subclasses_of ClassK + assert !const_missing + assert subclasses.empty? + ensure + Nested.const_set :ClassL, removed unless defined?(Nested::ClassL) + end + + def test_subclasses_of_with_multiple_roots + classes = Class.subclasses_of(ClassI, ClassK) + assert_equal %w(ClassJ Nested::ClassL), classes.collect(&:to_s).sort + end + + def test_subclasses_of_doesnt_find_anonymous_classes + assert_equal [], Class.subclasses_of(Foo) + bar = Class.new(Foo) + assert_nothing_raised do + assert_equal [bar], Class.subclasses_of(Foo) + end + end +end + class ObjectTests < Test::Unit::TestCase class DuckTime def acts_like_time? |