public void QualityDropsTo0AfterSellInPassed()
{
var backstagePass = new BackstagePasses(0, 15);
backstagePass.Update();
backstagePass.Quality.Should().Be(0);
backstagePass.SellIn.Should().Be(-1);
}
public void QualityIncreaseByThreeWhenThereAreBetween5And1DaysToSellIn()
{
var backstagePass = new BackstagePasses(4, 0);
backstagePass.Update();
backstagePass.Quality.Should().Be(3);
backstagePass.SellIn.Should().Be(3);
}
public void QualityIncreaseByTwoWhenThereAreBetween10And6DaysToSellIn()
{
var backstagePass = new BackstagePasses(10, 25);
backstagePass.Update();
backstagePass.Quality.Should().Be(27);
backstagePass.SellIn.Should().Be(9);
}
public void QualityIncreaseByOneWhenThereAreMoreThan10DaysToSellIn()
{
var backstagePass = new BackstagePasses(11, 0);
backstagePass.Update();
backstagePass.Quality.Should().Be(1);
backstagePass.SellIn.Should().Be(10);
}