public void FromDifference_TotalSmaller_NegativePercentage()
{
Percentage twiceAsSmall = Percentage.FromDifference(10L, 20L);
Assert.That(twiceAsSmall.Value, Is.EqualTo(-100d));
twiceAsSmall = Percentage.FromDifference(10d, 20d);
Assert.That(twiceAsSmall.Value, Is.EqualTo(-100d));
}
public void FromDifference_TotalBigger_PositivePercentage()
{
Percentage fiftyPercentBigger = Percentage.FromDifference(20L, 10L);
Assert.That(fiftyPercentBigger.Value, Is.EqualTo(50d));
fiftyPercentBigger = Percentage.FromDifference(20d, 10d);
Assert.That(fiftyPercentBigger.Value, Is.EqualTo(50d));
}
public void FromDifference_ZeroTotal_HundredPercent()
{
Percentage hundredPercentMore = Percentage.FromDifference(15, 0);
Assert.That(hundredPercentMore.Value, Is.EqualTo(100d));
Assert.That(hundredPercentMore.Fraction, Is.EqualTo(1d));
hundredPercentMore = Percentage.FromDifference(long.MaxValue, 0);
Assert.That(hundredPercentMore.Value, Is.EqualTo(100d));
Assert.That(hundredPercentMore.Fraction, Is.EqualTo(1d));
}
