*     case no change will be made.
     * @return this {@code Builder} object
     * @throws NullPointerException if {@code element} is null
     * @throws IllegalArgumentException if {@code occurrences} is negative, or if this operation
     *     would result in more than {@link Integer#MAX_VALUE} occurrences of the element
     */
    @CanIgnoreReturnValue
    public Builder<E> addCopies(E element, int occurrences) {

    if (localInputFuture != null) {
      String message = "inputFuture=[" + localInputFuture + "]";
      if (localTimer != null) {
        long delay = localTimer.getDelay(MILLISECONDS);
        // Negative delays look confusing in an error message
        if (delay > 0) {
          message += ", remaining delay=[" + delay + " ms]";
        }
      }
      return message;
    }
    return null;
  }

    void testTimeReadWriteZero() {
        byte[] buffer = new byte[8];
        ServerMessageBlock.writeTime(0, buffer, 0);
        // When zero is written, it stays as zero in buffer
        // When read back, it converts to negative Unix time due to Windows FileTime conversion
        long expectedTime = -SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601;
        assertEquals(expectedTime, ServerMessageBlock.readTime(buffer, 0));
    }

    @Test

``` hl_lines="5"
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

Como esse arquivo está no mesmo pacote, você pode usar importações relativas para importar o objeto `app` do módulo `main` (`main.py`):

{* ../../docs_src/app_testing/test_main.py hl[3] *}

...e ter o código para os testes como antes.

## Testando: exemplo estendido

        assertEquals(0, result);

        result = response.readSetupWireFormat(smallBuffer, Integer.MAX_VALUE, 0);
        assertEquals(0, result);

        // Test with negative length (should still return 0)
        result = response.readParametersWireFormat(smallBuffer, 0, -1);
        assertEquals(0, result);
    }

    @Test
    @DisplayName("Test command type is correct")

``` hl_lines="5"
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

Debido a que este archivo está en el mismo paquete, puedes usar importaciones relativas para importar el objeto `app` desde el módulo `main` (`main.py`):

{* ../../docs_src/app_testing/test_main.py hl[3] *}

...y tener el código para las pruebas tal como antes.

## Pruebas: ejemplo extendido

 *
 * <p>Note to maintainers: This implementation relies on signed arithmetic being bit-wise equivalent
 * to unsigned arithmetic in all cases except:
 *
 * <ul>
 *   <li>comparisons (signed values can be negative)
 *   <li>division (avoided here)
 *   <li>shifting (right shift must be unsigned)
 * </ul>
 *
 * @author ******@****.*** (Kyle Maddison)
 * @author ******@****.*** (Geoff Pike)
 */

            // When & Then
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> response.readBytesWireFormat(buffer, 0));
        }

        @Test
        @DisplayName("Should handle negative structure size as unsigned")
        void testReadBytesWireFormatNegativeAsUnsigned() {
            // Given
            byte[] buffer = new byte[10];
            // Write -1 which will be read as 65535 unsigned

    this.allowsSelfLoops = allowsSelfLoops;
    return this;
  }

  /**
   * Specifies the expected number of nodes in the graph.
   *
   * @throws IllegalArgumentException if {@code expectedNodeCount} is negative
   */
  @CanIgnoreReturnValue
  public ValueGraphBuilder<N, V> expectedNodeCount(int expectedNodeCount) {
    this.expectedNodeCount = Optional.of(checkNonNegative(expectedNodeCount));
    return this;
  }

                            return response.addrEntry[0];
                        }
                        if (element == RESOLVER_WINS) {
                            /* If WINS reports negative, no point in retry
                             */
                            break;
                        }
                    }
                    break;
                }