Map<String, Object> result = searchLogHelper.toLowerHyphen(source);

        assertEquals("anotherValue", result.get("another_key"));
        assertEquals("validValue", result.get("valid_key"));
    }

    @Test
    public void test_searchLogQueue_initialization() {
        assertNotNull(searchLogHelper.searchLogQueue);
        assertTrue(searchLogHelper.searchLogQueue.isEmpty());
    }

    @Test
    public void test_getFilteredEnvMap_emptyKey() {
        envMap.put("", "value");
        envMap.put("VALID_KEY", "valid_value");

        final Map<String, String> filtered = systemHelper.getFilteredEnvMap(".*");
        assertEquals(1, filtered.size());
        assertEquals("valid_value", filtered.get("VALID_KEY"));
    }

    @Test
    public void test_normalizeConfigPath_edgeCases() {