Merge pull request #2418 from jeremyevans/array-empty-kwsplat

Ignore empty keyword splats in arrays

1 files changed, 27 insertions, 0 deletions

diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index b98a233937..56e2937dc8 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -100,6 +100,33 @@ class TestSyntax < Test::Unit::TestCase
     EOS
   end
 
+  def test_array_kwsplat_hash
+    kw = {}
+    h = {a: 1}
+    assert_equal([], [**{}])
+    assert_equal([], [**kw])
+    assert_equal([h], [**h])
+    assert_equal([{}], [{}])
+    assert_equal([kw], [kw])
+    assert_equal([h], [h])
+
+    assert_equal([1], [1, **{}])
+    assert_equal([1], [1, **kw])
+    assert_equal([1, h], [1, **h])
+    assert_equal([1, {}], [1, {}])
+    assert_equal([1, kw], [1, kw])
+    assert_equal([1, h], [1, h])
+
+    assert_equal([], [**kw, **kw])
+    assert_equal([], [**kw, **{}, **kw])
+    assert_equal([1], [1, **kw, **{}, **kw])
+
+    assert_equal([{}], [{}, **kw, **kw])
+    assert_equal([kw], [kw, **kw, **kw])
+    assert_equal([h], [h, **kw, **kw])
+    assert_equal([h, h], [h, **kw, **kw, **h])
+  end
+
   def test_normal_argument
     assert_valid_syntax('def foo(x) end')
     assert_syntax_error('def foo(X) end', /constant/)