}

    @Test
    public void test_calculateDocumentSize() {
        assertEquals(0, indexingHelper.calculateDocumentSize(Collections.emptyMap()));
        assertEquals(118, indexingHelper.calculateDocumentSize(Map.of("id", "test")));
        assertEquals(249, indexingHelper.calculateDocumentSize(Map.of("id", "test", "url", "http://test.com/")));
    }

    @Test
    public void test_setMaxRetryCount() {

        // Test with system property that exists
        System.setProperty("test.property", "test.value");
        execJob.testAddSystemProperty(cmdList, "test.property", "default", null);
        assertEquals(1, cmdList.size());
        assertEquals("-Dtest.property=test.value", cmdList.get(0));

        // Test with append value
        cmdList.clear();

    }

    @Test
    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

    }

    @Test
    public void test_mergeItemsWithNoMatch() throws Exception {
        String[][] readings1 = new String[1][];
        readings1[0] = new String[] { "test1" };
        String[][] readings2 = new String[1][];
        readings2[0] = new String[] { "test2" };
        String[][] readings3 = new String[1][];
        readings3[0] = new String[] { "test3" };

        // Mixed content array
        assertEquals(84L, MemoryUtil.sizeOf(new Object[] { "test", 123, null }));

        // Nested arrays
        assertEquals(120L, MemoryUtil.sizeOf(new Object[] { new String[] { "test" }, new String[] { "test" } }));
    }

    @Test
    public void test_sizeOf_collectionVariations() {
        // Empty collection

        ElevateWord elevateWord2 =
                new ElevateWord("test2", 3.0f, Collections.singletonList("test2"), Collections.singletonList("content"), null, null);

        suggester.settings().elevateWord().add(elevateWord1);
        suggester.settings().elevateWord().add(elevateWord2);

        assertNull(System.getProperty("test." + now));
        appValue.set("=abc\nfess." + now + "=test1\ntest." + now + "=test2");
        helper.updateSystemProperties();
        assertEquals("test1", System.getProperty("fess." + now));
        assertEquals("test2", System.getProperty("test." + now));
    }

    @Test
    public void test_getCurrentTime() {

  // Intentionally duplicate the Predicate interface to test that it won't cause
  // exceptions
  private interface IntegerStringFunction
      extends IntegerSupplier, Predicate<List<String>>, StringListPredicate {}

  public void testGenericInterface() {
    // test the 1st generic interface on the class
    Type fType = Supplier.class.getTypeParameters()[0];
    assertEquals(

  // Intentionally duplicate the Predicate interface to test that it won't cause
  // exceptions
  private interface IntegerStringFunction
      extends IntegerSupplier, Predicate<List<String>>, StringListPredicate {}

  public void testGenericInterface() {
    // test the 1st generic interface on the class
    Type fType = Supplier.class.getTypeParameters()[0];
    assertEquals(

    }

    // Test command string construction edge cases
    @Test
    public void test_command_string_edge_cases() throws Exception {
        // Test with commands containing special characters
        final List<String> specialCommands = Arrays.asList("echo \"test with quotes\"", "echo 'test with single quotes'",
                "echo test with spaces", "echo test&with&ampersand", "echo test|with|pipe");