public unsafe void Peek_Item_Success()
        {
            var expected = new TestStruct()
            {
                X = 3, Y = 1
            };

            FixedQueue <TestStruct> sut = stackalloc TestStruct[1];

            sut.Enqueue(expected);

            var testStruct = sut.Peek();

            Assert.AreEqual(1, sut.Count);

            Assert.AreEqual(3, testStruct.X);
            Assert.AreEqual(1, testStruct.Y);
        }