public static void TestInequalityNull()
{
Position position1 = new Position(File.E, 1);
Position position2 = null;
Assert.AreNotEqual(position1, position2, "position1 and position2 should not be equal");
Assert.False(position1.Equals(position2), "position1.Equals(position2) should be false");
Assert.True(position1 != position2, "position1 != position2 should be true");
Assert.True(position2 != position1, "position2 != position1 should be true");
Assert.False(position1 == position2, "position1 == position2 should be false");
Assert.False(position2 == position1, "position2 == position1 should be false");
}