public void Clear_ClearQueueWithSomeNumbersShoulWork()
        {
            // Arrange
            QueueLinkedList <int> sut = new QueueLinkedList <int>();
            int expected = 0;

            // Act
            sut.Add(int.MaxValue);
            sut.Add(int.MinValue);
            sut.Add(42);
            sut.Clear();
            int actual = sut.Size();

            // Assert
            Assert.Equal(expected, actual);
        }