add tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14779 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

bootstraptest/test_knownbug.rb

@@ -2,3 +2,17 @@
 # This test file concludes tests which point out known bugs.
 # So all tests will cause failure.
 #
+
+assert_normal_exit %q{
+  File.read("/dev/null").clone
+}, '[ruby-dev:32819] reported by Kazuhiro NISHIYAMA'
+
+assert_normal_exit %q{
+  class Foo
+     def self.add_method
+       class_eval("def some-bad-name; puts 'hello' unless @some_variable.some_function(''); end")
+     end
+  end
+  Foo.add_method
+}, '[ruby-core:14556] reported by Frederick Cheung'
+

test/ruby/test_m17n.rb

@@ -1865,6 +1865,13 @@ class TestM17N < Test::Unit::TestCase
     assert_equal(Encoding::EUC_JP, "\xa4\xa2".force_encoding("euc-jp").gsub(/./, '\&').encoding)
   end
 
+  def test_gsub
+    s = 'abc'
+    s.ascii_only?
+    s.gsub!(/b/, "\x80")
+    assert_equal(false, s.ascii_only?, "[ruby-core:14566] reported by Sam Ruby")
+  end
+
   def test_regexp_match
     assert_equal([0,0], //.match("\xa1\xa1".force_encoding("euc-jp"),-1).offset(0))
   end