@MapFeature.Require(ALLOWS_NULL_KEYS)
  @CollectionSize.Require(absent = ZERO)
  public void testCreateWithNullKeySupported() {
    initMapWithNullKey();
    expectContents(createArrayWithNullKey());
  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEYS)
  @CollectionSize.Require(absent = ZERO)
  public void testCreateWithNullKeyUnsupported() {
    assertThrows(NullPointerException.class, () -> initMapWithNullKey());
  }

public class MultimapEntriesTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
  public void testEntries() {
    assertEqualIgnoringOrder(getSampleElements(), multimap().entries());
  }

  @CollectionSize.Require(absent = ZERO)
  @MapFeature.Require(ALLOWS_NULL_KEYS)
  public void testContainsEntryWithNullKeyPresent() {
    initMultimapWithNullKey();

  }

  public void testIntersection() {
    RangeSet<Integer> expected =
        ImmutableRangeSet.<Integer>builder()
            .add(Range.closed(2, 3))
            .add(Range.open(6, 7))
            .add(Range.singleton(8))
            .build();

    assertThat(RANGE_SET_ONE.intersection(RANGE_SET_TWO)).isEqualTo(expected);
  }

  public void testDifference() {

    private static final String ID_FIELD = "_id";

    /**
     * Test behavior when no searchers are registered (empty list).
     */
    @Test
    public void test_emptySearcherList() throws Exception {
        try (RankFusionProcessor processor = new RankFusionProcessor()) {
            processor.init();

            // Should handle empty searcher list gracefully

        super(tableDbName);
    }

    @Override
    public void lockForUpdate() {
    }

    @Override
    public DBWay dbway() {
        return null;
    }

    @Override
    protected void doFetchFirst() {
    }

    @Override
    protected void doFetchPage() {
    }

    @Override
    protected void doClearFetchPageClause() {
    }

    @Override

    }

    @Test
    public void test_removePathMappingList_withNullSessionId() {
        pathMappingHelper.removePathMappingList(null);
    }

    @Test
    public void test_getPathMappingList_withNullSessionId() {
        assertNull(pathMappingHelper.getPathMappingList(null));
    }

    @Test
    public void test_replaceUrl_withNullSessionId() {

                throw (CIFSException) e;
            }
            throw new CIFSException("Circuit breaker operation failed", e);
        }
    }

    private void onSuccess() {
        onSuccess(0);
    }

    private void onSuccess(long responseTimeMs) {
        State currentState = state.get();
        totalSuccesses.incrementAndGet();
        consecutiveSuccesses.incrementAndGet();

    private AdminDesignAction action;
    private Path tempDir;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        action = new AdminDesignAction();
        tempDir = Files.createTempDirectory("fess_test");
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        // Clean up temp directory
        if (tempDir != null) {

            }
        };
        ComponentUtil.register(systemHelper, "systemHelper");
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        super.tearDown(testInfo);
    }

    // Test append method with null value
    @Test
    public void test_append_nullValue() {
        StringBuilder buf = new StringBuilder();
        Supplier<Object> supplier = () -> null;

      ImmutableList.of("foo.blah", "", "[google.com]");

  public void testGoodIpAddresses() throws ParseException {
    for (String spec : GOOD_IPS) {
      assertGood(spec);
    }
  }

  public void testBadIpAddresses() {
    for (String spec : BAD_IPS) {
      assertBad(spec);
    }
  }

  public void testGoodDomains() throws ParseException {
    for (String spec : GOOD_DOMAINS) {