1 files changed, 20 insertions, 6 deletions
diff --git a/test/ruby/test_keyword.rb b/test/ruby/test_keyword.rb
index ef594bd52e..9aca787dff 100644
--- a/test/ruby/test_keyword.rb
+++ b/test/ruby/test_keyword.rb
@@ -237,16 +237,16 @@ class TestKeywordArguments < Test::Unit::TestCase
     assert_equal(true, Hash.ruby2_keywords_hash?(marked))
   end
 
+  def assert_equal_not_same(kw, res)
+    assert_instance_of(Hash, res)
+    assert_equal(kw, res)
+    assert_not_same(kw, res)
+  end
+
   def test_keyword_splat_new
     kw = {}
     h = {a: 1}
 
-    def self.assert_equal_not_same(kw, res)
-      assert_instance_of(Hash, res)
-      assert_equal(kw, res)
-      assert_not_same(kw, res)
-    end
-
     def self.yo(**kw) kw end
     m = method(:yo)
     assert_equal(false, yo(**{}).frozen?)
@@ -459,6 +459,20 @@ class TestKeywordArguments < Test::Unit::TestCase
     assert_equal_not_same h, yo(*a, **h)
   end
 
+  def test_keyword_splat_to_non_keyword_method
+    h = {a: 1}.freeze
+
+    def self.yo(kw) kw end
+    assert_equal_not_same(h, yo(**h))
+    assert_equal_not_same(h, method(:yo).(**h))
+    assert_equal_not_same(h, :yo.to_proc.(self, **h))
+
+    def self.yoa(*kw) kw[0] end
+    assert_equal_not_same(h, yoa(**h))
+    assert_equal_not_same(h, method(:yoa).(**h))
+    assert_equal_not_same(h, :yoa.to_proc.(self, **h))
+  end
+
   def test_regular_kwsplat
     kw = {}
     h = {:a=>1}