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-rw-r--r--spec/ruby/library/stringio/open_spec.rb4
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