end = System.currentTimeMillis();
        assertTrue(end - start >= 100); // Should wait until crawler is running
        thread.join();
    }

    @Test
    public void test_delayByRules() throws ParseException {
        IntervalControlHelper helper = createHelper("12:15", 1);

        // Test with no rules
        long start = System.currentTimeMillis();
        helper.delayByRules();