// Test overwriting existing keys
        paramMap = new HashMap<>();
        paramMap.put("key1", "oldValue");
        configParam = "key1=newValue";
        ParameterUtil.loadConfigParams(paramMap, configParam);
        assertEquals(1, paramMap.size());
        assertEquals("newValue", paramMap.get("key1"));
    }

    @Test
    public void test_createConfigParameterMap() {
        String configParameters;

    public void test_overwriteValues() {
        dataStoreParams.put("key1", "originalValue");
        assertEquals("originalValue", dataStoreParams.get("key1"));

        dataStoreParams.put("key1", "newValue");
        assertEquals("newValue", dataStoreParams.get("key1"));

        dataStoreParams.put("key1", null);
        assertNull(dataStoreParams.get("key1"));
    }

    // Test multiple operations in sequence
    @Test

        ProtwordsItem item = new ProtwordsItem(1, "oldValue");
        item.setNewInput("newValue");

        ProtwordsFile.ProtwordsUpdater updater = protwordsFile.new ProtwordsUpdater(item);

        // Write the same item (should update)
        ProtwordsItem result = updater.write(item);

        assertNotNull(result);
        assertEquals("newValue", result.getInput());
        assertEquals(1, result.getId());