* Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.
     * @param level The parameter value of level. (NotNull)
     */
    public void setLevel(String level) {
        registerVariable("level", level);
    }

    /**
     * Set the value of hostname, used in parameter comment. <br>

            }
        }

        // An empty file should return no items
        assertEquals("Empty file should have no items", 0, result.size());
        assertEquals("Empty file should have no records", 0, result.getAllRecordCount());
        assertEquals("Empty file should have no pages", 0, result.getAllPageCount());
    }

    // Test selectList method with valid data

        public Map<String, Object> toSource() {
            return null;
        }

        @Override
        public String getEventType() {
            return null;
        }
    }

    // Test empty values implementation
    private static class EmptySearchLogEvent implements SearchLogEvent {
        @Override
        public String getId() {
            return "";
        }

        @Override

    }

    @Test
    public void test_empty() {
        // Test empty user bean creation
        FessUserBean emptyBean = FessUserBean.empty();
        assertNotNull(emptyBean);

        // Test getUserId returns EMPTY_USER_ID
        assertEquals(Constants.EMPTY_USER_ID, emptyBean.getUserId());

        // Test hasRoles always returns true for empty user
        assertTrue(emptyBean.hasRoles(new String[] { "admin" }));

        // Assert deleteByQuery was called with the configured empty index
        assertTrue(deleteByQueryCalled);
        assertEquals("", deleteIndex);

        // Assert result is empty when successful
        assertEquals("", result);
    }

    @Test
    public void test_execute_withEmptyFieldName() {
        // Configure empty field name
        expiresFieldName = "";

    }

    /**
     * Test isSortField with empty array - should return false, not throw exception.
     * This test addresses the Copilot AI concern about empty arrays.
     */
    @Test
    public void test_isSortField_withEmptyArray_returnsFalse() {
        String[] emptyFields = {};
        queryFieldConfig.setSortFields(emptyFields);

        // Set should be empty but not null

    .message-actions {
        opacity: 1;
    }

    .empty-state {
        padding: 2rem 1rem;
    }

    .empty-state-icon {
        width: 64px;
        height: 64px;
    }

    .empty-state-icon i {
        font-size: 1.5rem;
    }

    .empty-state-title {
        font-size: 1.125rem;
    }

    .empty-state-description {
        font-size: 0.875rem;
    }

        generator.setCommandList(commands);
        assertTrue("Multiple commands should be settable", true);

        // Test with empty list
        generator.setCommandList(new ArrayList<>());
        assertTrue("Empty command list should be settable", true);

        // Test with single command
        generator.setCommandList(Collections.singletonList("single_command"));

        assertEquals(Long.valueOf(5), facetInfo.minDocCount);
        assertEquals("count.desc", facetInfo.sort);
        assertEquals("unknown", facetInfo.missing);
    }

    // Test init with empty fields
    @Test
    public void test_init_withEmptyFields() {
        FessConfig fessConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getQueryFacetFields() {

        // Execute
        OptionalThing<Locale> result = provider.findBusinessLocale(null, mockRequestManager);

        // Verify - should return empty when parameter name is blank
        assertFalse(result.isPresent());
    }

    // Test findBusinessLocale with null parameter name
    @Test
    public void test_findBusinessLocale_withNullParameterName() {