* encoding.c (enc_find): check type of argument and convert to String

  if it is StringValue. [ruby-cvs:22866]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/test/ruby/test_m17n.rb b/test/ruby/test_m17n.rb
index 21189e323f..069554a127 100644
--- a/test/ruby/test_m17n.rb
+++ b/test/ruby/test_m17n.rb
@@ -1113,6 +1113,13 @@ class TestM17N < Test::Unit::TestCase
     assert_equal(Encoding::US_ASCII, {1=>nil,"foo"=>""}.to_s.encoding)
   end
 
+  def test_encoding_find
+    assert_raise(TypeError) {Encoding.find(nil)}
+    assert_raise(TypeError) {Encoding.find(0)}
+    assert_raise(TypeError) {Encoding.find([])}
+    assert_raise(TypeError) {Encoding.find({})}
+  end
+
   def test_encoding_to_s
     assert_equal(Encoding::US_ASCII, Encoding::US_ASCII.to_s.encoding)
     assert_equal(Encoding::US_ASCII, Encoding::US_ASCII.inspect.encoding)