}

  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());

		}
		testReadFrom struct { // ReadFrom(testFile{ops}) == (wantCnt, wantErr)
			ops     fileOps
			wantCnt int64
			wantErr error
		}
		testClose struct { // Close() == wantErr
			wantErr error
		}
		testFnc any // testHeader | testWrite | testReadFrom | testClose
	)

	vectors := []struct {
		file     string // Optional filename of expected output
		obscured bool   // Whether file is obscured
		tests    []testFnc

        // 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