public void EmptyTailTest()
{
var queue = BankersQueue <string> .Empty;
var ex = AssertThrows <ArgumentNullException>(() => BankersQueue <string> .Tail(queue));
Assert.AreEqual("Value cannot be null.\r\n" + "Parameter name: queue", ex.Message);
}
public void TailTest()
{
const string data = "One Two Three One Three";
var queue = data.Split().Aggregate(BankersQueue <string> .Empty, BankersQueue <string> .Snoc);
var tail = BankersQueue <string> .Tail(queue);
Assert.AreEqual("[2, {$Two, $Three}, 2, {$Three, $One}]", DumpQueue(tail, true));
}
public void EmptyTest()
{
var queue = BankersQueue <string> .Empty;
Assert.IsTrue(BankersQueue <string> .IsEmpty(queue));
queue = BankersQueue <string> .Snoc(queue, "Item");
Assert.IsFalse(BankersQueue <string> .IsEmpty(queue));
queue = BankersQueue <string> .Tail(queue);
Assert.IsTrue(BankersQueue <string> .IsEmpty(queue));
}
public void PushPopTest()
{
const string data = "One Two Three One Three";
var queue = data.Split().Aggregate(BankersQueue <string> .Empty, BankersQueue <string> .Snoc);
foreach (var expected in data.Split())
{
var actual = BankersQueue <string> .Head(queue);
Assert.AreEqual(expected, actual);
queue = BankersQueue <string> .Tail(queue);
}
Assert.IsTrue(BankersQueue <string> .IsEmpty(queue));
}
public void NullTailTest()
{
var ex = AssertThrows <NullReferenceException>(() => BankersQueue <string> .Tail(null));
Assert.AreEqual("Object reference not set to an instance of an object.", ex.Message);
}