public void Should_ThrowAnError_When_ChangeTankIsCalledWithNegative()
{
// Arrange
Beer beer = new Beer(12, "Special Honey Beer", 400);
// Act
Action act = () => beer.ChargeTank(-1);
// Assert
Assert.Throws <LitersChargeNegativeException>(act);
}
public void Should_Add10Liters_When_ChargeTankIsCalled()
{
// Arrange
Beer beer = new Beer(12, "Special Honey Beer", 400);
// Act
beer.ChargeTank(10);
// Assert
Assert.Equal(410, beer.LitersAvailable);
}