public void IsGreaterThanOrEqualTo()
        {
            CompareAssert.IsGreaterThanOrEqualTo(7, 4);
            CompareAssert.IsGreaterThanOrEqualTo(4, 4);

            CompareAssert.IsGreaterThanOrEqualTo("a", "B", StringComparer.Ordinal,
                                                 "\"a\" should be greater than or equal to \"B\" for case-sensitive ordinal comparison.");

            CompareAssert.IsGreaterThanOrEqualTo("b", "B", StringComparer.OrdinalIgnoreCase,
                                                 "\"b\" should be greater than or equal to \"B\" for case-insensitive ordinal comparison.");

            ExceptionAssert.ThrowsAssertFailed(
                () => CompareAssert.IsGreaterThanOrEqualTo("a", "B", StringComparer.OrdinalIgnoreCase),
                "\"a\" should not be greater than or equal to \"B\" for case-insensitive ordinal comparison.");

            CompareAssert.IsGreaterThanOrEqualTo <string>(null, null);
            CompareAssert.IsGreaterThanOrEqualTo("x", null);

            ExceptionAssert.ThrowsAssertFailed(
                () => CompareAssert.IsGreaterThanOrEqualTo(null, "x"),
                "(null) should not be greater than or equal to \"x\".");
        }