// Act
        String result = nodeStatusRequest.toString();

        // Assert
        assertNotNull(result);
        assertTrue(result.startsWith("NodeStatusRequest["));
        assertTrue(result.endsWith("]"));
        assertTrue(result.contains("NodeStatusRequest"));
    }

    @Test
    void toString_shouldIncludeParentToString() {
        // Arrange

            Thread.sleep(50);

            response.error();

            assertTrue(latch.await(500, TimeUnit.MILLISECONDS));
            assertTrue(response.isError());
        }

        @Test
        @DisplayName("Should clear received state")
        void testClearReceived() {
            response.received();
            assertTrue(response.isReceived());

            response.clearReceived();

        // Check inheritance chain
        assertTrue(exception instanceof CommandExecutionException);
        assertTrue(exception instanceof FessSystemException);
        assertTrue(exception instanceof RuntimeException);
        assertTrue(exception instanceof Exception);
        assertTrue(exception instanceof Throwable);

        // Should be runtime exception (unchecked), not an Error

    void testExceptionHierarchy() {
        // When
        RuntimeCIFSException exception = new RuntimeCIFSException("Test");

        // Then
        assertTrue(exception instanceof RuntimeException);
        assertTrue(exception instanceof Exception);
        assertTrue(exception instanceof Throwable);
    }

    @Test
    @DisplayName("Should support exception chaining")
    void testExceptionChaining() {

        assertTrue("Configuration should be fast", true);
    }

    public void test_empty_session_handling() {
        try {
            dataIndexHelper.crawl("");
            dataIndexHelper.crawl(null);
            assertTrue("Empty session handling should be fast", true);
        } catch (Exception e) {
            assertTrue("Exception handling should be fast", true);
        }

        // Act
        String s = ex.toString();

        // Assert
        assertTrue(s.contains("SMBSignatureValidationException"), "toString should include class name");
        assertTrue(s.contains(msg), "toString should include message when provided");
    }

    assertTrue(multimap().putAll(source));
    assertTrue(multimap().containsEntry(k0(), v3()));
    assertTrue(multimap().containsEntry(k3(), v3()));
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  public void testPutAllWithNullValue() {
    Multimap<K, V> source = getSubjectGenerator().create(mapEntry(k0(), null));
    assertTrue(multimap().putAll(source));

        assertNotNull(str);
        assertTrue(str.contains("SearchResult"));
        assertTrue(str.contains("documentList="));
        assertTrue(str.contains("allRecordCount=100"));
        assertTrue(str.contains("allRecordCountRelation=eq"));
        assertTrue(str.contains("queryTime=50"));
        assertTrue(str.contains("partialResults=true"));
        assertTrue(str.contains("facetResponse="));
    }

import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoInteractions;
import static org.mockito.Mockito.when;

    Collection<V> result = multimap().get(k0());
    assertTrue(result.add(v3()));
    assertTrue(multimap().containsKey(k0()));
    assertEquals(getNumElements() + 1, multimap().size());
    assertTrue(multimap().containsEntry(k0(), v3()));
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPropagatesAddAllToMultimap() {
    Collection<V> result = multimap().get(k0());
    assertTrue(result.addAll(singletonList(v3())));