* ext/psych/parser.c: parse raises a TypeError when nil is passed in.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27278 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/test/psych/test_psych.rb b/test/psych/test_psych.rb
index 22baa1489e..91c67b1664 100644
--- a/test/psych/test_psych.rb
+++ b/test/psych/test_psych.rb
@@ -4,6 +4,12 @@ require 'stringio'
 require 'tempfile'
 
 class TestPsych < Psych::TestCase
+  def test_load_argument_error
+    assert_raises(TypeError) do
+      Psych.load nil
+    end
+  end
+
   def test_dump_stream
     things = [22, "foo \n", {}]
     stream = Psych.dump_stream(*things)