public void WhenIncreasePlusExistingGoesOverMax_ThenSetToMax()
{
var sut = new SonosVolume(50);
sut.Increase(51);
Assert.That(sut.Value, Is.EqualTo(SonosVolume.MaxVolume));
}
public void WhenIncrease_ThenSetToExistingPlusIncrease()
{
var sut = new SonosVolume(50);
sut.Increase(15);
Assert.That(sut.Value, Is.EqualTo(65));
}
public void WhenIncreaseAmountIsLessThanZero_ThenThrowException()
{
var sut = new SonosVolume(50);
Assert.Throws <ArgumentOutOfRangeException>(() => sut.Increase(-1));
}