[ruby/forwardable] Make def_*_delegator return name of method defined (Fixes #10)

This restores compatibility with previous versions.  This behavior
was previously undefined, but it makes sense for the name of the
defined method to be returned.

https://github.com/ruby/forwardable/commit/a52ef3451e

1 files changed, 6 insertions, 2 deletions

diff --git a/test/test_forwardable.rb b/test/test_forwardable.rb
index dc1408e8ed..deb0b5d5cf 100644
--- a/test/test_forwardable.rb
+++ b/test/test_forwardable.rb
@@ -24,11 +24,13 @@ class TestForwardable < Test::Unit::TestCase
 
   def test_def_instance_delegator
     %i[def_delegator def_instance_delegator].each do |m|
+      ret = nil
       cls = forwardable_class do
-        __send__ m, :@receiver, :delegated1
+        ret = __send__ m, :@receiver, :delegated1
       end
 
       assert_same RETURNED1, cls.new.delegated1
+      assert_equal :delegated1, ret
     end
   end
 
@@ -185,11 +187,13 @@ class TestForwardable < Test::Unit::TestCase
 
   def test_class_single_delegator
     %i[def_delegator def_single_delegator].each do |m|
+      ret = nil
       cls = single_forwardable_class do
-        __send__ m, :@receiver, :delegated1
+        ret = __send__ m, :@receiver, :delegated1
       end
 
       assert_same RETURNED1, cls.delegated1
+      assert_equal :delegated1, ret
     end
   end