object.c: nul in const name

* object.c (rb_mod_const_get): nul byte is invalid as constant name.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38466 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index b2e2e8049d..eb1477893b 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -583,9 +583,18 @@ class TestModule < Test::Unit::TestCase
 
   def test_const_get_invalid_name
     c1 = Class.new
+    assert_raise(NameError) { c1.const_get(:foo) }
+    bug5084 = '[ruby-dev:44200]'
+    assert_raise(TypeError, bug5084) { c1.const_get(1) }
+    assert_raise(NameError) { Object.const_get("String\0") }
+  end
+
+  def test_const_defined_invalid_name
+    c1 = Class.new
     assert_raise(NameError) { c1.const_defined?(:foo) }
     bug5084 = '[ruby-dev:44200]'
     assert_raise(TypeError, bug5084) { c1.const_defined?(1) }
+    assert_raise(NameError) { Object.const_defined?("String\0") }
   end
 
   def test_const_get_no_inherited