public void IsNotEqualTo()
        {
            CompareAssert.IsNotEqualTo(4, 5);
            CompareAssert.IsNotEqualTo("B", "A");

            CompareAssert.IsNotEqualTo("B", "b", StringComparer.Ordinal,
                                       "\"B\" should not be equal to \"b\" for case-sensitive ordinal comparison.");

            ExceptionAssert.ThrowsAssertFailed(
                () => CompareAssert.IsNotEqualTo("B", "B"),
                "\"B\" should not be not equal to \"B\".");

            ExceptionAssert.ThrowsAssertFailed(
                () => CompareAssert.IsNotEqualTo("B", "b", StringComparer.OrdinalIgnoreCase),
                "\"B\" should not be not equal to \"b\" for case-insensitive ordinal comparison.");

            CompareAssert.IsNotEqualTo(null, "x");
            CompareAssert.IsNotEqualTo("x", null);

            ExceptionAssert.ThrowsAssertFailed(
                () => CompareAssert.IsNotEqualTo <string>(null, null),
                "(null) should not be not equal to (null).");
        }