From ed8c211a645cfb0528128306789d73441afadf31 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 27 Dec 2016 10:41:16 +0000
Subject: merge revision(s) 56980,56981: [Backport #13004]

	extension.rdoc: fix rb_get_kwargs [ci skip]

	* doc/extension.rdoc: [DOC] optional keyword arguments are
  defaulted to Qundef.  ignored keys are kept in the hash but a
  new Hash is not created.  [ruby-dev:49893] [Bug #13004]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@57215 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_keyword.rb | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_keyword.rb b/test/ruby/test_keyword.rb
index 764bd959b1..82037575f9 100644
--- a/test/ruby/test_keyword.rb
+++ b/test/ruby/test_keyword.rb
@@ -540,6 +540,13 @@ class TestKeywordArguments < Test::Unit::TestCase
     }
   end
 
+  def test_unknown_keyword
+    bug13004 = '[ruby-dev:49893] [Bug #13004]'
+    assert_raise_with_message(ArgumentError, /unknown keyword: invalid-argument/, bug13004) {
+      [].sample(random: nil, "invalid-argument": nil)
+    }
+  end
+
   def test_super_with_anon_restkeywords
     bug10659 = '[ruby-core:67157] [Bug #10659]'
 
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