# File lib/mocha/detection/test_unit.rb, line 4
      def self.testcase
        if defined?(::Test::Unit::TestCase) &&
           !(defined?(::MiniTest::Unit::TestCase) && (::Test::Unit::TestCase < ::MiniTest::Unit::TestCase)) &&
           !(defined?(::MiniTest::Spec) && (::Test::Unit::TestCase < ::MiniTest::Spec))
          ::Test::Unit::TestCase
        end
      end