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;
  }

            // 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

    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

``` 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

            readParams.setAccessible(true);
            assertEquals(0, readParams.invoke(cancel, emptyArray, 0));
        }

        @Test
        @DisplayName("Should handle negative MID values")
        void testWithNegativeMid() throws Exception {
            // Given
            Configuration config = mock(Configuration.class);
            when(config.getPid()).thenReturn(12345);

   * @param columnIndex position of the row key in {@link #columnKeyList()}
   * @return the value with the specified row and column
   * @throws IndexOutOfBoundsException if either index is negative, {@code rowIndex} is greater than
   *     or equal to the number of allowed row keys, or {@code columnIndex} is greater than or equal
   *     to the number of allowed column keys
   */

        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")

            assertEquals("share$", result.getShare());
            assertEquals("path", result.getPath());
        }

        @Test
        @DisplayName("Should handle negative expiration times")
        void testNegativeExpiration() {
            when(mockReferral.getTtl()).thenReturn(300);
            when(mockReferral.getRFlags()).thenReturn(0);