Add FrozenError as a subclass of RuntimeError

FrozenError will be used instead of RuntimeError for exceptions
raised when there is an attempt to modify a frozen object. The
reason for this change is to differentiate exceptions related
to frozen objects from generic exceptions such as those generated
by Kernel#raise without an exception class.

From: Jeremy Evans <code@jeremyevans.net>
Signed-off-by: Urabe Shyouhei <shyouhei@ruby-lang.org>


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61131 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb
index 51f69be37d..235dfbfc9b 100644
--- a/test/ruby/test_enumerator.rb
+++ b/test/ruby/test_enumerator.rb
@@ -79,7 +79,7 @@ class TestEnumerator < Test::Unit::TestCase
     enum = @obj.to_enum
     assert_raise(NoMethodError) { enum.each {} }
     enum.freeze
-    assert_raise(RuntimeError) {
+    assert_raise(FrozenError) {
       capture_io do
         # warning: Enumerator.new without a block is deprecated; use Object#to_enum
         enum.__send__(:initialize, @obj, :foo)
@@ -440,7 +440,7 @@ class TestEnumerator < Test::Unit::TestCase
     assert_equal([1, 2, 3], a)
 
     g.freeze
-    assert_raise(RuntimeError) {
+    assert_raise(FrozenError) {
       g.__send__ :initialize, proc { |y| y << 4 << 5 }
     }