public void ThrowException_WhenAskingForAnAmphipodThatIsNotThere()
{
var sut = new AmphipodSorter(SAMPLE_MAP);
var exception = Assert.Throws <ArgumentException>(() => sut.GetAmphipodAt(0, 0));
Assert.Equal("No amphipod there", exception.Message);
}
public void MakeAmphipodMoveNorthThenWestThrice()
{
var sut = new AmphipodSorter(SAMPLE_MAP);
sut.MoveAmphipodFrom(7, 2).To(7, 1).To(6, 1).To(5, 1).To(4, 1);
Assert.Equal((4, 1, 10, 'B'), sut.GetAmphipodAt(4, 1));
Assert.Equal(40, sut.TotalCost);
}
public void MakeAmphipodMoveNorth()
{
var sut = new AmphipodSorter(SAMPLE_MAP);
sut.MoveAmphipodFrom(7, 2).To(7, 1);
Assert.Equal((7, 1, 10, 'B'), sut.GetAmphipodAt(7, 1));
Assert.Equal(10, sut.TotalCost);
}
public void IndividualizeEveryAmphipod()
{
var sut = new AmphipodSorter(SAMPLE_MAP);
Assert.Equal((3, 3, 1, 'A'), sut.GetAmphipodAt(3, 3));
}