# File test/test_wpm_WPMErrorPage.rb, line 145
    def test_backtrace
      @backtrace = nil
      assert_equal(nil, @WPMErrorPage.backtrace)
      assert_equal(1, @last_error_info_call)
      assert_equal(1, @backtrace_call)
      @backtrace = [ 'foo', 'bar' ]
      assert_equal([ 'foo', 'bar' ], @WPMErrorPage.backtrace)
      assert_equal(2, @last_error_info_call)
      assert_equal(2, @backtrace_call)
    end