public void convert_back_returns_mapped_value_if_mapping_exists() { var converter = new MapConverter(); converter.Mappings.Add(new Mapping("from", "to")); converter.Mappings.Add(new Mapping(null, "NULL")); converter.Mappings.Add(new Mapping(123, 123.5d)); Assert.Same("from", converter.ConvertBack("to", null, null, null)); Assert.Null(converter.ConvertBack("NULL", null, null, null)); Assert.Equal(123, converter.ConvertBack(123.5d, null, null, null)); }
public void convert_back_honors_fallback_behavior_if_conversion_fails() { var converter = new MapConverter(); converter.Mappings.Add(new Mapping("from", "to")); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(null, null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack("abc", null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(123, null, null, null)); converter.FallbackBehavior = FallbackBehavior.ReturnOriginalValue; Assert.Null(converter.ConvertBack(null, null, null, null)); Assert.Same("abc", converter.ConvertBack("abc", null, null, null)); Assert.Equal(123, converter.ConvertBack(123, null, null, null)); converter.FallbackBehavior = FallbackBehavior.ReturnFallbackValue; converter.FallbackValue = "my fallback value"; Assert.Equal("my fallback value", converter.ConvertBack(null, null, null, null)); Assert.Equal("my fallback value", converter.ConvertBack("abc", null, null, null)); Assert.Equal("my fallback value", converter.ConvertBack(123, null, null, null)); }
public void convert_back_honors_fallback_behavior_if_conversion_fails() { var converter = new MapConverter(); converter.Mappings.Add(new Mapping("from", "to")); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(null, null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack("abc", null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(123, null, null, null)); converter.FallbackBehavior = FallbackBehavior.ReturnOriginalValue; Assert.Null(converter.ConvertBack(null, null, null, null)); Assert.Same("abc", converter.ConvertBack("abc", null, null, null)); Assert.Equal(123, converter.ConvertBack(123, null, null, null)); converter.FallbackBehavior = FallbackBehavior.ReturnFallbackValue; converter.FallbackValue = "my fallback value"; Assert.Equal("my fallback value", converter.ConvertBack(null, null, null, null)); Assert.Equal("my fallback value", converter.ConvertBack("abc", null, null, null)); Assert.Equal("my fallback value", converter.ConvertBack(123, null, null, null)); }
public void convert_back_returns_default_value_if_no_mapping_exists() { var converter = new MapConverter(); converter.Mappings.Add(new Mapping("from", "to")); converter.FallbackBehavior = FallbackBehavior.ReturnUnsetValue; Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(null, null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack("abc", null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(123, null, null, null)); converter.FallbackBehavior = FallbackBehavior.ReturnOriginalValue; Assert.Null(converter.ConvertBack(null, null, null, null)); Assert.Same("abc", converter.ConvertBack("abc", null, null, null)); Assert.Equal(123, converter.ConvertBack(123, null, null, null)); }
public void convert_back_returns_mapped_value_if_mapping_exists() { var converter = new MapConverter(); converter.Mappings.Add(new Mapping("from", "to")); converter.Mappings.Add(new Mapping(null, "NULL")); converter.Mappings.Add(new Mapping(123, 123.5d)); Assert.Same("from", converter.ConvertBack("to", null, null, null)); Assert.Null(converter.ConvertBack("NULL", null, null, null)); Assert.Equal(123, converter.ConvertBack(123.5d, null, null, null)); }
public void convert_back_returns_default_value_if_no_mapping_exists() { var converter = new MapConverter(); converter.Mappings.Add(new Mapping("from", "to")); converter.FallbackBehavior = FallbackBehavior.ReturnUnsetValue; Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(null, null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack("abc", null, null, null)); Assert.Same(DependencyProperty.UnsetValue, converter.ConvertBack(123, null, null, null)); converter.FallbackBehavior = FallbackBehavior.ReturnOriginalValue; Assert.Null(converter.ConvertBack(null, null, null, null)); Assert.Same("abc", converter.ConvertBack("abc", null, null, null)); Assert.Equal(123, converter.ConvertBack(123, null, null, null)); }