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-rw-r--r--railties/test/isolation/abstract_unit.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/railties/test/isolation/abstract_unit.rb b/railties/test/isolation/abstract_unit.rb
index 96c6f21395..0ca0de5e6f 100644
--- a/railties/test/isolation/abstract_unit.rb
+++ b/railties/test/isolation/abstract_unit.rb
@@ -406,6 +406,10 @@ class ActiveSupport::TestCase
include TestHelpers::Rack
include TestHelpers::Generation
include ActiveSupport::Testing::Stream
+
+ def frozen_error_class
+ Object.const_defined?(:FrozenError) ? FrozenError : RuntimeError
+ end
end
# Create a scope and build a fixture rails app