|
public ConvertBack ( object value, Type, targetType, object parameter, |
||
| value | object | |
| targetType | Type, | |
| parameter | object | |
| culture | ||
| return | object | |
public void convert_back_returns_unset_value_if_value_is_not_a_date_time()
{
var converter = new DateTimeConverter();
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));
}
public void ConvertBack_NotImplementedException()
{
var testSubject = new DateTimeConverter();
Action act = () => testSubject.ConvertBack(null, null, null, null);
act.Should().Throw <NotImplementedException>("ConvertBack is not required");
}
public void convert_back_converts_value_to_source_kind(DateTimeKind sourceDateTimeKind, DateTimeKind targetDateTimeKind)
{
var converter = new DateTimeConverter
{
SourceKind = sourceDateTimeKind
};
var sourceDateTime = DateTime.SpecifyKind(DateTime.UtcNow, sourceDateTimeKind);
var result = (DateTime)converter.ConvertBack(sourceDateTime, null, null, null);
Assert.Equal(sourceDateTimeKind, result.Kind);
}
public void convert_back_applies_any_source_adjustment()
{
var converter = new DateTimeConverter
{
ConversionMode = DateTimeConversionMode.SpecifyKindOnly,
SourceAdjustment = TimeSpan.FromMinutes(1)
};
var sourceDateTime = DateTime.UtcNow;
var result = converter.ConvertBack(sourceDateTime, null, null, null);
Assert.Equal(sourceDateTime.Add(TimeSpan.FromMinutes(1)), result);
}
public void convert_back_returns_same_value_if_source_kind_is_unspecified()
{
var converter = new DateTimeConverter
{
SourceKind = DateTimeKind.Unspecified
};
var sourceDateTime = DateTime.UtcNow;
var result = (DateTime)converter.ConvertBack(sourceDateTime, null, null, null);
Assert.Equal(DateTimeKind.Utc, result.Kind);
Assert.Equal(sourceDateTime, result);
}
public void ShouldConvertBack()
{
// Arrange
IValueConverter dateTimeConverter = new DateTimeConverter();
DateTime dateTimeNow = DateTime.Now;
string dateTimeInput = dateTimeNow.ToLongTimeString();
// Act
var convertedOutput = (DateTime)dateTimeConverter.ConvertBack(dateTimeInput, null, null, null);
// Assert
(dateTimeNow - convertedOutput).Should().BeLessThan(new TimeSpan(0, 0, 0, 1));
}
public void convert_back_does_not_adjust_value_if_conversion_mode_is_specify_kind_only()
{
var converter = new DateTimeConverter
{
SourceKind = DateTimeKind.Local,
ConversionMode = DateTimeConversionMode.SpecifyKindOnly
};
var sourceDateTime = DateTime.UtcNow;
var result = (DateTime)converter.ConvertBack(sourceDateTime, null, null, null);
Assert.Equal(DateTimeKind.Local, result.Kind);
Assert.Equal(sourceDateTime, result);
}
public void ConvertBackShouldThrow()
{
var converter = new DateTimeConverter();
converter.ConvertBack(null, null, null, null);
}
public void ConvertBack_NotImplementedException()
{
//Assert
Assert.Throws <NotImplementedException>(() => converter.ConvertBack(testDate, typeof(string), null, null));
}
