public void Offset2DEquals()
{
var val1 = new Offset2D(0, 1);
var val2 = new Offset2D(2, 3);
Assert.True(val1.Equals(val1));
Assert.False(val1.Equals(val2));
Assert.True(val1 == val1);
Assert.False(val1 == val2);
Assert.False(val1 != val1);
Assert.True(val1 != val2);
Assert.NotEqual(val1.GetHashCode(), val2.GetHashCode());
}