public static void SerializeToString_object___Should_return_serialized_string_representation_of_value_for_different_DateTimeKind___When_called()
{
// Arrange
var systemUnderTest = new ObcNullableDateTimeStringSerializer();
// note that this will return "+00:00" if machine is on UTC time, which is what we expect
var offset = DateTime.Now.ToString("%K");
var scenarios = new List <(DateTime?Value, string Expected)>
{
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Utc), "2019-01-05T12:14:58.1920000Z"),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Utc).AddTicks(1), "2019-01-05T12:14:58.1920001Z"),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Utc).AddTicks(20), "2019-01-05T12:14:58.1920020Z"),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Unspecified), "2019-01-05T12:14:58.1920000"),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Unspecified).AddTicks(1), "2019-01-05T12:14:58.1920001"),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Unspecified).AddTicks(20), "2019-01-05T12:14:58.1920020"),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Local), "2019-01-05T12:14:58.1920000" + offset),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Local).AddTicks(1), "2019-01-05T12:14:58.1920001" + offset),
(new DateTime(2019, 1, 5, 12, 14, 58, 192, DateTimeKind.Local).AddTicks(20), "2019-01-05T12:14:58.1920020" + offset),
};
// Act
var actuals = scenarios.Select(_ => systemUnderTest.SerializeToString(_.Value)).ToList();
// Assert
actuals.Must().BeEqualTo(scenarios.Select(_ => _.Expected).ToList());
}
public static void SerializeToString_object___Should_return_null___When_parameter_value_is_null()
{
// Arrange
var systemUnderTest = new ObcNullableDateTimeStringSerializer();
object value = null;
// Act
var actual = Record.Exception(() => systemUnderTest.SerializeToString(value));
// Assert
actual.AsTest().Must().BeNull();
}
public static void RoundtripSerializeDeserialize___Using_local_negative_offset___Works()
{
// Arrange
DateTime?expected = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time"));
var serializer = new ObcNullableDateTimeStringSerializer();
// Act
var serialized = serializer.SerializeToString(expected);
var actual = serializer.Deserialize <DateTime?>(serialized);
// Assert
((DateTime)actual).Kind.Must().BeEqualTo(((DateTime)expected).Kind);
actual.Must().BeEqualTo(expected);
}
public static void SerializeToString_object___Should_throw_ArgumentException___When_parameter_value_is_not_DateTime()
{
// Arrange
var systemUnderTest = new ObcNullableDateTimeStringSerializer();
var values = new[] { new object(), A.Dummy <string>(), A.Dummy <int>(), A.Dummy <Guid>() };
// Act
var actual = values.Select(_ => Record.Exception(() => systemUnderTest.SerializeToString(_))).ToList();
// Assert
actual.Must().Each().BeOfType <ArgumentException>();
actual.Select(_ => _.Message).Must().Each().ContainString("objectToSerialize.GetType() != typeof(DateTime);");
}
public static void RoundtripSerializeDeserialize___Using_unspecified___Works()
{
// Arrange
DateTime?expected = DateTime.UtcNow.ToUnspecified();
var serializer = new ObcNullableDateTimeStringSerializer();
// Act
var serialized = serializer.SerializeToString(expected);
var actual = serializer.Deserialize <DateTime?>(serialized);
// Assert
((DateTime)actual).Kind.Must().BeEqualTo(((DateTime)expected).Kind);
actual.Must().BeEqualTo(expected);
}