public void ConvertEmptyDateTimeOffset()
{
// Arrange
DateTimeOffsetToLocalConverter converter = new DateTimeOffsetToLocalConverter();
DateTimeOffset empty = new DateTimeOffset(0, new TimeSpan(0, 0, 0));
// Act & Assert
Assert.DoesNotThrow(() => converter.Convert(empty, typeof(DateTimeOffset), null, CultureInfo.InvariantCulture));
}
public void ConvertNonDateTimeOffset()
{
// Arrange
DateTimeOffsetToLocalConverter converter = new DateTimeOffsetToLocalConverter();
DateTime now = DateTime.UtcNow;
// Act
DateTime? a = converter.Convert(now, typeof(DateTime), null, CultureInfo.InvariantCulture) as DateTime?;
// Assert
Assert.True(a.HasValue);
Assert.True(now.CompareTo(a.Value) == 0);
}
public void ConvertNullDateTimeOffset()
{
// Arrange
DateTimeOffsetToLocalConverter converter = new DateTimeOffsetToLocalConverter();
// Act
DateTimeOffset? a = converter.Convert(null, typeof(DateTimeOffset), null, CultureInfo.InvariantCulture) as DateTimeOffset?;
DateTimeOffset? b = converter.Convert(null, null, null, CultureInfo.InvariantCulture) as DateTimeOffset?;
// Assert - Null should be returned without any exceptions thrown
Assert.False(a.HasValue);
Assert.False(b.HasValue);
}
public void ConvertDateTimeOffsetToLocal(int offset)
{
// Arrange
DateTimeOffsetToLocalConverter converter = new DateTimeOffsetToLocalConverter();
DateTime utcDateTime = new DateTime(2013, 4, 16, 3, 55, 30, DateTimeKind.Utc);
DateTimeOffset utcOffset = new DateTimeOffset(utcDateTime);
DateTimeOffset expected = utcDateTime.ToLocalTime();
var date = utcOffset.ToOffset(new TimeSpan(offset, 0, 0));
// Act
var actual = (DateTimeOffset)converter.Convert(date, typeof(DateTimeOffset), null, CultureInfo.InvariantCulture);
// Assert that the offsets are identical
Assert.True(expected.Offset.CompareTo(actual.Offset) == 0);
// Assert that the dates display the same
Assert.Equal<string>(expected.ToString("d"), actual.ToString("d"));
}