*
 * <p>To use this class the concrete subclass must implement the {@link
 * IteratorTester#newTargetIterator()} method. This is because it's impossible to test an Iterator
 * without changing its state, so the tester needs a steady supply of fresh Iterators.
 *
 * <p>If your iterator supports modification through {@code remove()}, you may wish to override the

    /**
     * Gets the file type.
     *
     * @return the fileType
     */
    public final int getFileType() {
        return this.fileType;
    }

    /**
     * Gets the device state.
     *
     * @return the deviceState
     */
    public final int getDeviceState() {
        return this.deviceState;
    }

    /**
     * Gets the action taken.
     *

	pr.closedMu.Lock()
	defer pr.closedMu.Unlock()
	if pr.closed {
		return nil
	}
	pr.closed = true
	if pr.closer != nil {
		pr.closer.Close()
	}
	return pr.rc.Close()
}

func (pr *progressReader) Stats() (bytesScanned, bytesProcessed int64) {
	if pr == nil {
		return 0, 0
	}
	return pr.scannedReader.BytesRead(), pr.processedReader.BytesRead()
}

                                    const PartialTensorShape& shape,
                                    TracingTensorHandle**) = 0;

  // Finalize this context and make a function out of it. The context is in a
  // invalid state after this call and must be destroyed.
  virtual absl::Status Finalize(OutputList* outputs, AbstractFunction**) = 0;

  // For LLVM style RTTI.
  static bool classof(const AbstractContext* ptr) {

		return nil, err
	}

	if err = syscall.Flock(int(f.Fd()), lockType); err != nil {
		f.Close()
		if err == syscall.EWOULDBLOCK {
			err = ErrAlreadyLocked
		}
		return nil, err
	}

	st, err := os.Stat(path)
	if err != nil {
		f.Close()
		return nil, err
	}

	if st.IsDir() {
		f.Close()
		return nil, &os.PathError{
			Op:   "open",
			Path: path,
			Err:  syscall.EISDIR,
		}
	}

        }
    }

    /**
     * Asserts that the state is not invalid.
     *
     * @param expression
     *            The precondition.
     * @param description
     *            The description of why the state is invalid.
     * @throws ClIllegalStateException
     *             If {@code expression} is false.
     */

    void setUp() {
        buffer = new byte[1024]; // Initialize with a reasonable size
        ndrBuffer = new NdrBuffer(buffer, 0);
    }

    @Test
    void testConstructor() {
        // Verify initial state
        assertEquals(0, ndrBuffer.start);
        assertEquals(0, ndrBuffer.index);
        assertEquals(0, ndrBuffer.length);
        assertSame(ndrBuffer, ndrBuffer.deferred);
        assertSame(buffer, ndrBuffer.buf);

        assertTrue(ex.getMessage().toLowerCase().contains("usage count"));
    }

    @Test
    @DisplayName("isConnected reflects underlying tree state")
    void isConnected_usesTree() {
        SmbTreeConnection c = newConn();
        // No tree -> false
        assertFalse(c.isConnected());

        SmbTreeImpl tree = mock(SmbTreeImpl.class);

        if (v1 != null) {
            return v1.getLeaseKey();
        }
        return null;
    }

    /**
     * Get the lease state from the response
     * @return the lease state or 0 if no lease was granted
     */
    public int getLeaseState() {
        LeaseV2CreateContextResponse v2 = getLeaseV2Context();
        if (v2 != null) {

        assertEquals(expected, flags);
    }

    @Test
    @DisplayName("isEstablished reflects underlying context state")
    void isEstablished_behavior() throws Exception {
        when(gssContext.isEstablished()).thenReturn(true);
        assertTrue(ctx.isEstablished());

        // When gssContext is null, isEstablished returns false