Added ActiveSupport::BacktraceCleaner and Rails::BacktraceCleaner for cutting down on backtrace noise (inspired by the Thoughtbot Quiet Backtrace plugin) [DHH]

1 files changed, 8 insertions, 2 deletions

diff --git a/activesupport/lib/active_support/test_case.rb b/activesupport/lib/active_support/test_case.rb
index 5b825b212d..d1e657c15f 100644
--- a/activesupport/lib/active_support/test_case.rb
+++ b/activesupport/lib/active_support/test_case.rb
@@ -21,15 +21,21 @@ module ActiveSupport
       Assertion = MiniTest::Assertion
     end
 
+    # TODO: Figure out how to get the Rails::BacktraceFilter into minitest/unit
   # Test::Unit compatibility.
   rescue LoadError
     require 'test/unit/testcase'
     require 'active_support/testing/default'
 
+    if defined?(Rails)
+      require 'rails/backtrace_cleaner'
+      Test::Unit::Util::BacktraceFilter.module_eval { include Rails::BacktraceFilterForTestUnit }
+    end
+
     class TestCase < ::Test::Unit::TestCase
       Assertion = Test::Unit::AssertionFailedError
       include ActiveSupport::Testing::Default
-    end
+    end    
   end
 
   class TestCase
@@ -37,4 +43,4 @@ module ActiveSupport
     include ActiveSupport::Testing::Assertions
     extend ActiveSupport::Testing::Declarative
   end
-end
+end
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