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-rw-r--r--test/ruby/test_refinement.rb58
1 files changed, 57 insertions, 1 deletions
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index cc460894c4..ac6df929f0 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -324,5 +324,61 @@ class TestRefinement < Test::Unit::TestCase
obj = c.new
assert_equal([:c, :m1, :m2], m2.module_eval { obj.foo })
end
-end
+ def test_refine_module_without_overriding
+ m1 = Module.new
+ c = Class.new {
+ include m1
+ }
+ m2 = Module.new {
+ refine m1 do
+ def foo
+ :m2
+ end
+ end
+ }
+ obj = c.new
+ assert_equal(:m2, m2.module_eval { obj.foo })
+ end
+
+ def test_refine_module_with_overriding
+ m1 = Module.new {
+ def foo
+ [:m1]
+ end
+ }
+ c = Class.new {
+ include m1
+ }
+ m2 = Module.new {
+ refine m1 do
+ def foo
+ super << :m2
+ end
+ end
+ }
+ obj = c.new
+ assert_equal([:m1, :m2], m2.module_eval { obj.foo })
+ end
+
+ def test_refine_neither_class_nor_module
+ assert_raise(TypeError) do
+ Module.new {
+ refine Object.new do
+ end
+ }
+ end
+ assert_raise(TypeError) do
+ Module.new {
+ refine 123 do
+ end
+ }
+ end
+ assert_raise(TypeError) do
+ Module.new {
+ refine "foo" do
+ end
+ }
+ end
+ end
+end