public void ShouldConvertToExpectedValue(Speed originalSpeed, SpeedUnit targetUnit, Speed expectedSpeed)
{
// arrange
// act
var actualSpeed = originalSpeed.Convert(targetUnit);
// assert
actualSpeed.MetresPerSecond.Should().BeApproximately(expectedSpeed.MetresPerSecond);
actualSpeed.Value.Should().BeApproximately(expectedSpeed.Value);
actualSpeed.Unit.Should().Be(targetUnit);
}