# File test/test_EditProperties.rb, line 466
    def test_mask_nil
      @mask = nil
      setup_EditProperties
      assert_equal(1, @mask_call)
      assert_equal('nil', @EditProperties.mask_type)
      assert_equal(nil, @EditProperties.mask)
      @EditProperties.mask_type = 'nil'
      @EditProperties.mask = nil
      @EditProperties.write
      assert_equal(1, @set_mask_call)
      assert_equal(nil, @mask)
      assert_equal(1, @write_call)
    end