public void TowersOfHanoiAlgo_WhenFirstIsEmpty_LastIsEmpty()
{
// Arrange
var first = new Stack <int>();
var second = new Stack <int>();
var last = new Stack <int>();
// Act
TowersOfHanoi.TowersOfHanoiAlgo(first, second, last);
// Assert
last.Should().BeEmpty();
}
public void TowersOfHanoiAlgo_WhenFirstContainsOneDisk_LastContainsOne()
{
// Arrange
var first = new Stack <int>();
first.Push(1);
var second = new Stack <int>();
var last = new Stack <int>();
var expected = new Stack <int>();
expected.Push(1);
// Act
TowersOfHanoi.TowersOfHanoiAlgo(first, second, last);
// Assert
last.Count.Should().Be(1);
last.Should().BeEquivalentTo(expected);
}
public void TowersOfHanoiAlgo_WhenFirstContainsTenDisks_LastContainsTenDisksInOrder()
{
// Arrange
var first = new Stack <int>();
var second = new Stack <int>();
var last = new Stack <int>();
var expected = new Stack <int>();
for (int i = 10; i >= 1; i--)
{
first.Push(i);
expected.Push(i);
}
// Act
TowersOfHanoi.TowersOfHanoiAlgo(first, second, last);
// Assert
last.Count.Should().Be(10);
last.Should().BeEquivalentTo(expected);
}