CharMappingItem item = new CharMappingItem(1L, inputs, "line1\nline2");

        assertEquals("line1 line2", item.getOutput());
    }

    @Test
    public void test_constructor_withNullOutput() {
        // Test with null output
        String[] inputs = { "input" };
        CharMappingItem item = new CharMappingItem(1L, inputs, null);

        assertNull(item.getOutput());
    }

    @Test

    }

    @Test
    public void test_getVirtualHostPath() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public Tuple3<String, String, String>[] getVirtualHosts() {

    new RoundToDoubleTester(BigDecimal.valueOf((1L << 54) + 3))
        .setExpectation(twoToThe54, DOWN, FLOOR)
        .setExpectation(nextUp(twoToThe54), CEILING, UP, HALF_DOWN, HALF_UP, HALF_EVEN)
        .roundUnnecessaryShouldThrow()
        .test();
  }

  public void testRoundToDouble_twoToThe54PlusFour() {
    new RoundToDoubleTester(BigDecimal.valueOf((1L << 54) + 4))

    public void test_getTimeAdjustTimeMillisAsLong_values() {
        Long[] testValues = { 0L, 1L, -1L, 1000L, -1000L, 60000L, -60000L, 3600000L, -3600000L, Long.MAX_VALUE, Long.MIN_VALUE };

        for (Long value : testValues) {
            FessConfig testConfig = new FessConfig.SimpleImpl() {
                private static final long serialVersionUID = 1L;

                @Override
                public String getTimeAdjustTimeMillis() {

        originalFessConfig = ComponentUtil.getFessConfig();

        // Set up test configuration
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getMailFromName() {
                return "Test Admin";
            }

            @Override
            public String getMailFromAddress() {

    assertThat(Longs.constrainToRange(1L, 0L, 5L)).isEqualTo(1L);
    assertThat(Longs.constrainToRange(1L, 1L, 5L)).isEqualTo(1L);
    assertThat(Longs.constrainToRange(1L, 3L, 5L)).isEqualTo(3L);
    assertThat(Longs.constrainToRange(0L, -5L, -1L)).isEqualTo(-1L);
    assertThat(Longs.constrainToRange(5L, 2L, 2L)).isEqualTo(2L);
    assertThrows(IllegalArgumentException.class, () -> Longs.constrainToRange(1L, 3L, 2L));
  }

    new RoundToDoubleTester(BigDecimal.valueOf((1L << 54) + 3))
        .setExpectation(twoToThe54, DOWN, FLOOR)
        .setExpectation(nextUp(twoToThe54), CEILING, UP, HALF_DOWN, HALF_UP, HALF_EVEN)
        .roundUnnecessaryShouldThrow()
        .test();
  }

  public void testRoundToDouble_twoToThe54PlusFour() {
    new RoundToDoubleTester(BigDecimal.valueOf((1L << 54) + 4))

        assertEquals("id-with-special-!@#$%^&*()", event1.getId());

        // Test unicode in event type
        TestSearchLogEvent event2 = new TestSearchLogEvent("id", 1L, "タイプ日本語");
        assertEquals("タイプ日本語", event2.getEventType());

        // Test empty strings
        TestSearchLogEvent event3 = new TestSearchLogEvent("", 1L, "");
        assertEquals("", event3.getId());

  static final long[] factorials = {
    1L,
    1L,
    1L * 2,
    1L * 2 * 3,
    1L * 2 * 3 * 4,
    1L * 2 * 3 * 4 * 5,
    1L * 2 * 3 * 4 * 5 * 6,
    1L * 2 * 3 * 4 * 5 * 6 * 7,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11,
    1L * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12,

        super.setUp(testInfo);
        dataIndexHelper = new DataIndexHelper();
        setupMockComponents();
        // Reduce default interval to minimize test execution time
        dataIndexHelper.setCrawlingExecutionInterval(1L); // 1ms instead of 5000ms
    }

    private void setupMockComponents() {
        // Lightweight mock CrawlingConfigHelper
        ComponentUtil.register(new CrawlingConfigHelper() {
            @Override