assertEquals(0, configHelper.load());

        configHelper.setLoadCallback(() -> -1);
        assertEquals(-1, configHelper.load());
    }

    static class TestConfigHelper extends AbstractConfigHelper {

        private final AtomicInteger loadCallCount = new AtomicInteger(0);
        private LoadCallback loadCallback = () -> 0;

        @Override
        public int load() {

        KeyMatchHelper helper = new KeyMatchHelper();
        assertNotNull(helper);
    }

    @Test
    public void test_keyMatchHelper_inheritance() {
        assertTrue(keyMatchHelper instanceof AbstractConfigHelper);
    }

        assertFalse(pattern.match("/deny/path"));
    }

    @Test
    public void test_labelTypeHelper_inheritance() {
        assertTrue(labelTypeHelper instanceof AbstractConfigHelper);
    }

    @Test
    public void test_load_returnValue() {
        int result = labelTypeHelper.load();
        assertEquals(2, result); // Based on mock data
    }

    @Test