public void TestEqualsMethodShouldReturnFalseIfSecondPositionObjectsIsNull()
        {
            var firstPosition = new Position(1, 1);

            var expected = false;
            var actual = firstPosition.Equals(null);

            Assert.AreEqual(expected, actual, "Method Equals should return false if the second Position objects is null");
        }
        public void TestEqualsMethodShouldReturnTrueIfTwoPositionObjectsAreEqual()
        {
            var firstPosition = new Position(1, 1);
            var secondPosition = new Position(1, 1);

            var expected = true;
            var actual = firstPosition.Equals(secondPosition);

            Assert.AreEqual(expected, actual, "Method Equals should return true if two Position objects are equal");
        }