===

# File railties/lib/rails/test_unit/runner.rb, line 140
      def ===(method)
        return unless @runnable.method_defined?(method)

        if @line
          test_file, test_range = definition_for(@runnable.instance_method(method))
          test_file == @file && test_range.include?(@line)
        else
          @runnable.instance_method(method).source_location.first == @file
        end
      end