// When
        outputStream.flush();

        // Then - flush should complete without error
        assertTrue(outputStream.isOpen());
    }

    @Test
    void testClose() throws IOException, CIFSException {
        // Given
        when(mockTreeHandle.isSMB2()).thenReturn(true);
        when(mockTreeHandle.getSendBufferSize()).thenReturn(65536);

        assertNull(iterator.next(), "Should return null when no elements");
    }

    /**
     * Test close method delegates to underlying iterator.
     */
    @Test
    void testClose() throws CIFSException {
        // Given
        when(mockDelegate.hasNext()).thenReturn(false);

        DirFileEntryAdapterIterator iterator = new DirFileEntryAdapterIterator(mockParent, mockDelegate, null) {

            assertDoesNotThrow(() -> handle.setDcerpcSecurityProvider(mockSecurityProvider));
        }

        @Test
        @DisplayName("Should handle close operation")
        void testClose() throws IOException {
            // When: Closing handle
            handle.close();

            // Then: Should complete without errors
            assertDoesNotThrow(() -> handle.close());
        }

            doNothing().when(smbFile).connect();

            // Act
            smbFile.connect();

            // Assert - should not throw exception
        }

        @Test
        void testClose() {
            // Act
            smbFile.close();

            // Assert - should not throw exception
        }

        @Test
        void testGetTransportContext() {
            // Act & Assert

    }

    @Nested
    @DisplayName("Resource Management Tests")
    class ResourceManagementTests {

        @Test
        @DisplayName("close operation should work correctly")
        void testClose() {
            // When/Then
            assertDoesNotThrow(() -> mockResource.close(), "Close operation should not throw exception");
            verify(mockResource).close();
        }

        @Test

        byte[] buffer = new byte[10];
        // Should throw exception when buffer is too small
        assertThrows(IllegalStateException.class, () -> hmac.engineDigest(buffer, 0, 10));
    }

    @Test
    void testClone() {
        // Test clone() method
        HMACT64 originalHmac = new HMACT64(TEST_KEY);
        originalHmac.engineUpdate(TEST_DATA, 0, TEST_DATA.length / 2);

            HMACT64 hmac = new HMACT64(TEST_KEY);
            assertThrows(IllegalStateException.class, () -> hmac.engineDigest(new byte[10], 0, 10));
        }
    }

    @Test
    void testClone() throws NoSuchAlgorithmException, CloneNotSupportedException {
        // Test clone() method
        try (MockedStatic<Crypto> mockedCrypto = mockStatic(Crypto.class)) {

  }

  public void testOpen_invalid() {
    assertThrows(IllegalArgumentException.class, () -> Range.open(4, 3));
    assertThrows(IllegalArgumentException.class, () -> Range.open(3, 3));
  }

  public void testClosed() {
    Range<Integer> range = Range.closed(5, 7);
    checkContains(range);
    assertTrue(range.hasLowerBound());
    assertEquals(5, (int) range.lowerEndpoint());
    assertEquals(CLOSED, range.lowerBoundType());

  }

  public void testOpen_invalid() {
    assertThrows(IllegalArgumentException.class, () -> Range.open(4, 3));
    assertThrows(IllegalArgumentException.class, () -> Range.open(3, 3));
  }

  public void testClosed() {
    Range<Integer> range = Range.closed(5, 7);
    checkContains(range);
    assertTrue(range.hasLowerBound());
    assertEquals(5, (int) range.lowerEndpoint());
    assertEquals(CLOSED, range.lowerBoundType());

        assertEquals(0, engine.evaluate("return 0", params));
        engine.close();
    }

    /**
     * Test that close() can be called without error
     */
    @Test
    public void test_close() {
        final GroovyEngine engine = new GroovyEngine();
        engine.evaluate("return 1", new HashMap<>());
        engine.close();
    }

    /**