Vector2D.GetHashCode C# (CSharp) Method

    public override int GetHashCode()
    {
        return (x + y).GetHashCode();
    }

            public void same_vector_has_same_hashcode_when_mutated()
            {
                var m = new Vector2D(1, 2);
                var expectedHashCode = m.GetHashCode();

                m.X = -1.1;
                m.Y = 100.2;

                Assert.Equal(expectedHashCode, m.GetHashCode());
            }