public void TestQueue()
{
var queue = new IndexedQueue <int>(new int[] { 1, 2, 3 });
queue.Count.Should().Be(3);
queue.Enqueue(4);
queue.Count.Should().Be(4);
queue.Peek().Should().Be(1);
queue.TryPeek(out var a).Should().BeTrue();
a.Should().Be(1);
queue[0].Should().Be(1);
queue[1].Should().Be(2);
queue[2].Should().Be(3);
queue.Dequeue().Should().Be(1);
queue.Dequeue().Should().Be(2);
queue.Dequeue().Should().Be(3);
queue[0] = 5;
queue.TryDequeue(out a).Should().BeTrue();
a.Should().Be(5);
queue.Enqueue(4);
queue.Clear();
queue.Count.Should().Be(0);
}
public void TestDefault()
{
var queue = new IndexedQueue <int>(10);
queue.Count.Should().Be(0);
queue = new IndexedQueue <int>();
queue.Count.Should().Be(0);
queue.TrimExcess();
queue.Count.Should().Be(0);
queue = new IndexedQueue <int>(Array.Empty <int>());
queue.Count.Should().Be(0);
queue.TryPeek(out var a).Should().BeFalse();
a.Should().Be(0);
queue.TryDequeue(out a).Should().BeFalse();
a.Should().Be(0);
Assert.ThrowsException <InvalidOperationException>(() => queue.Peek());
Assert.ThrowsException <InvalidOperationException>(() => queue.Dequeue());
Assert.ThrowsException <IndexOutOfRangeException>(() => _ = queue[-1]);
Assert.ThrowsException <IndexOutOfRangeException>(() => queue[-1] = 1);
Assert.ThrowsException <IndexOutOfRangeException>(() => _ = queue[1]);
Assert.ThrowsException <IndexOutOfRangeException>(() => queue[1] = 1);
Assert.ThrowsException <ArgumentOutOfRangeException>(() => new IndexedQueue <int>(-1));
}
