public void CreatingFromDateTime_DateTimeBeingNull_CreatesEmpty()
{
// Act
var actualUtcDateTime = UtcDateTime.CreateFromDateTime(null);
// Assert
actualUtcDateTime.HasValue.Should().BeFalse();
}
public void GettingValue_DateTimeBeingSet_ReturnsValue()
{
// Arrange
var localDateTime = DateTime.Now;
// Act
var actualUtcDateTime = UtcDateTime.CreateFromDateTime(localDateTime);
// Assert
actualUtcDateTime.Value.Should().Be(localDateTime.ToUniversalTime());
}
public void CreatingFromDateTime_DateTimeBeingUtcKind_DoesNotConvert()
{
// Arrange
var utcDateTime = DateTime.UtcNow;
// Act
var actualUtcDateTime = UtcDateTime.CreateFromDateTime(utcDateTime);
// Assert
actualUtcDateTime.HasValue.Should().BeTrue();
actualUtcDateTime.Value.Should().Be(utcDateTime);
}
public void CreatingFromDateTime_DateTimeBeingLocalKind_DoesConvert()
{
// Arrange
var localDateTime = DateTime.Now;
// Act
var actualUtcDateTime = UtcDateTime.CreateFromDateTime(localDateTime);
// Assert
actualUtcDateTime.HasValue.Should().BeTrue();
actualUtcDateTime.Value.Kind.Should().NotBeSameAs(localDateTime.Kind);
actualUtcDateTime.Value.Ticks.Should().Be(localDateTime.ToUniversalTime().Ticks);
}
public void CreatingFromDateTime_DateTimeBeingUnspecified_ThrowsException()
{
// Arrange
var unspecifiedDateTime = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Unspecified);
// Act
Exception?actualException = null;
try
{
UtcDateTime.CreateFromDateTime(unspecifiedDateTime);
}
catch (Exception ex)
{
actualException = ex;
}
// Assert
actualException.Should().NotBeNull();
actualException.Should().BeAssignableTo <InvalidOperationException>();
}
public void GettingValue_BeingEmpty_ThrowsException()
{
// Arrange
var emptyUtcDateTime = UtcDateTime.CreateFromDateTime(null);
// Act
Exception?actualException = null;
try
{
// ReSharper disable once UnusedVariable
var value = emptyUtcDateTime.Value;
}
catch (Exception ex)
{
actualException = ex;
}
// Assert
actualException.Should().NotBeNull();
actualException.Should().BeAssignableTo <InvalidOperationException>();
}