Update to ruby/spec@0fe33ac

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/ruby/library/stringio/open_spec.rb b/spec/ruby/library/stringio/open_spec.rb
index 136ff5f972..95b715e583 100644
--- a/spec/ruby/library/stringio/open_spec.rb
+++ b/spec/ruby/library/stringio/open_spec.rb
@@ -134,8 +134,8 @@ describe "StringIO.open when passed [Object, mode]" do
     io.closed_write?.should be_false
   end
 
-  it "raises a RuntimeError when passed a frozen String in truncate mode as StringIO backend" do
-    lambda { StringIO.open("example".freeze, IO::TRUNC) }.should raise_error(RuntimeError)
+  it "raises a #{frozen_error_class} when passed a frozen String in truncate mode as StringIO backend" do
+    lambda { StringIO.open("example".freeze, IO::TRUNC) }.should raise_error(frozen_error_class)
   end
 
   it "tries to convert the passed mode to a String using #to_str" do