public static void checkFalse(boolean expression, String errorMessage) {
        if (expression) {
            throw new IllegalArgumentException(errorMessage);
        }
    }
@Test
    public void test_checkFalse() {
        try {
            checkFalse(Boolean.FALSE, "comparison cannot be true");
        } catch (Exception e) {
            fail("checkFalse method should not throw this exception " + e);
        }
    }