assertFalse(
        "removeAll(emptyCollection) should return false",
        collection.removeAll(MinimalCollection.of()));
    expectUnchanged();
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemoveAll_nonePresent() {
    assertFalse(
        "removeAll(disjointCollection) should return false",
        collection.removeAll(MinimalCollection.of(e3())));
    expectUnchanged();

  public void testGet_yes() {
    assertEquals("get(present) should return the associated value", v0(), get(k0()));
  }

  public void testGet_no() {
    assertNull("get(notPresent) should return null", get(k3()));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)
  public void testGet_nullNotContainedButAllowed() {
    assertNull("get(null) should return null", get(null));
  }

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        response = new Smb2FlushResponse(mockConfig);
    }

    @Test
    @DisplayName("Constructor should initialize with Configuration")
    void testConstructor() {
        // Given & When
        Smb2FlushResponse flushResponse = new Smb2FlushResponse(mockConfig);

        // Then
        assertNotNull(flushResponse);

            final String message = e.getMessage();
            assertNotNull("Error message should not be null", message);
            assertFalse("Error message should not be empty", message.trim().isEmpty());
            assertTrue("Error message should start with action verb", message.startsWith("Failed to extract"));
            assertTrue("Error message should contain 'text content'", message.contains("text content"));
        }
    }

        // With threshold 1, writing 1 byte should stay in memory
        ContentOutputStream cos = new ContentOutputStream(1, Curl.tmpDir);
        cos.write(new byte[] { 1 });
        assertTrue(cos.isInMemory());
        assertFalse(cos.done);
        cos.close();
    }

    @Test
    public void testThresholdOneExceeded() throws IOException {
        // With threshold 1, writing 2 bytes should go to file

        assertEquals(NegTokenTarg.ACCEPT_COMPLETED, roundTrip.getResult(), "result should roundtrip");
        assertEquals(mech, roundTrip.getMechanism(), "mechanism should roundtrip");
        assertArrayEquals(tokenArray, roundTrip.getMechanismToken(), "mechanism token should roundtrip");
        assertArrayEquals(mic, roundTrip.getMechanismListMIC(), "mic should roundtrip");
    }

    @Test

        assertTrue(endLatch.await(10, TimeUnit.SECONDS), "All threads should complete");
        executor.shutdown();

        // Then - Session should be in consistent state
        // The double-check pattern should prevent inconsistent cleanup
        assertTrue(releaseCount.get() > 0 || acquireCount.get() > 0, "Release and acquire counts should be processed");
    }

    /**

        assertEquals(smbTreeHandle, result, "getTree should return the mocked SmbTreeHandle.");
        verify(smbFileHandle, times(1)).getTree();
    }

    /**
     * Test isValid() when the handle is valid.
     */
    @Test
    void testIsValid_whenValid() {
        when(smbFileHandle.isValid()).thenReturn(true);
        assertTrue(smbFileHandle.isValid(), "isValid should return true when the handle is valid.");

    assertTrue("containsKey(present) should return true", getMap().containsKey(k0()));
  }

  public void testContains_no() {
    assertFalse("containsKey(notPresent) should return false", getMap().containsKey(k3()));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)
  public void testContains_nullNotContainedButAllowed() {
    assertFalse("containsKey(null) should return false", getMap().containsKey(null));
  }

        };

        // Act & Assert: test with different file names
        assertTrue(filter.accept(mockDir, "document.txt"), "Should accept .txt files in the correct path");
        assertFalse(filter.accept(mockDir, "image.png"), "Should reject non-.txt files");
        assertFalse(filter.accept(mockDir, null), "Should reject null names");

        // Verify getPath was called three times (once for each accept call)