public void test_store_withValidData() {
        // Prepare test data
        DataStoreParams paramMap = new DataStoreParams();
        Map<String, Object> dataMap = new HashMap<>();
        dataMap.put("url", "http://example.com/test");
        dataMap.put("title", "Test Document");

        // Execute
        indexUpdateCallback.store(paramMap, dataMap);

        // Verify

        assertFalse(paramMap.containsKey("xxx"));
        assertTrue(paramMap.containsKey("aaa"));
        assertTrue(paramMap.containsKey("aaa_bbb"));
        assertTrue(paramMap.containsKey("aaaBbb"));
        assertTrue(paramMap.containsKey("AaaBbb"));
        assertFalse(paramMap.containsKey("aaabbb"));
        assertTrue(paramMap.containsKey("aaa_bbb_ccc"));

        Map<String, String[]> paramMap;

        paramMap = filter.parseQueryString("a=1", "UTF-8");
        assertEquals(1, paramMap.size());
        assertEquals("1", paramMap.get("a")[0]);

        paramMap = filter.parseQueryString("a=1&b=2", "UTF-8");
        assertEquals(2, paramMap.size());
        assertEquals("1", paramMap.get("a")[0]);
        assertEquals("2", paramMap.get("b")[0]);

        paramMap = ParameterUtil.parse(value);
        assertEquals(1, paramMap.size());
        assertEquals("", paramMap.get("a"));

        value = "a";
        paramMap = ParameterUtil.parse(value);
        assertEquals(1, paramMap.size());
        assertEquals("", paramMap.get("a"));

        value = "a=b=c";
        paramMap = ParameterUtil.parse(value);
        assertEquals(1, paramMap.size());

        String value;
        final Map<String, Object> paramMap = new HashMap<>();
        paramMap.put("param1", "PARAM1");
        paramMap.put("param2", "PARAM2+");
        paramMap.put("param3", "PARAM3*");

        value = "\"abc\"";
        assertEquals("abc", dataStore.convertValue(Constants.DEFAULT_SCRIPT, value, paramMap));

        value = "param1";

        scriptEngineFactory.add("modifyEngine", new ScriptEngine() {
            @Override
            public Object evaluate(String template, Map<String, Object> paramMap) {
                // Try to add new param
                paramMap.put("newKey", "newValue");
                return paramMap.size();
            }
        });

        // Execute first time
        Object result1 = scriptExecutor.execute("modifyEngine", "script1");

        DataStoreParams paramMap = new DataStoreParams();
        Pattern pattern = Pattern.compile(".*\\.jpg$");
        paramMap.put("url_exclude_pattern", pattern);

        boolean result1 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/image.jpg");
        boolean result2 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/image.png");

        assertFalse(result1);
        assertTrue(result2);
    }

    }

    // Test getDataMap with ParamMap
    @Test
    public void test_getDataMapWithParamMap() {
        Map<String, Object> innerMap = new HashMap<>();
        innerMap.put("key1", "value1");
        ParamMap<String, Object> paramMap = new ParamMap<>(innerMap);

        Map<String, Object> result = DataStoreParams.getDataMap(paramMap);
        assertSame(innerMap, result);
    }

            private final AtomicLong execTime = new AtomicLong(0);

            @Override
            public void store(DataStoreParams paramMap, Map<String, Object> dataMap) {
                assertNotNull(paramMap);
                assertNotNull(dataMap);
                docSize.incrementAndGet();
                execTime.addAndGet(100);
            }

            @Override

        @Override
        public Object evaluate(String template, Map<String, Object> paramMap) {
            return "TestEngine[" + identifier + "]: " + template;
        }
    }

    private static class CustomScriptEngine implements ScriptEngine {
        @Override
        public Object evaluate(String template, Map<String, Object> paramMap) {
            return "CustomEngine: " + template;
        }
    }