assertNull(parsed.getMechanisms(), "Mechanisms should be null when absent");
        assertEquals(0, parsed.getContextFlags(), "Flags should be zero when absent");
        assertNull(parsed.getMechanismToken(), "Mechanism token should be null when absent");
        assertNull(parsed.getMechanismListMIC(), "MIC should be null when absent");
    }

    @Test

* the data from the client to be sent through the network
* the data sent by your program to be received by the client through the network
* the contents of a file in the disk to be read by the system and given to your program
* the contents your program gave to the system to be written to disk
* a remote API operation
* a database operation to finish

        // Normal authentication should be allowed
        assertTrue(rateLimiter.checkAttempt("user1", "192.168.1.1"), "First attempt should be allowed");

        // Record success
        rateLimiter.recordSuccess("user1", "192.168.1.1");

        // Should still be allowed
        assertTrue(rateLimiter.checkAttempt("user1", "192.168.1.1"), "After success should be allowed");
    }

    @Test

        // Then
        assertEquals(ServerMessageBlock.SMB_COM_TRANSACTION2, next.command, "Command must be SMB_COM_TRANSACTION2");
        assertEquals(SmbComTransaction.TRANS2_FIND_NEXT2, next.subCommand, "Sub-command must be TRANS2_FIND_NEXT2");
        assertEquals(8, next.maxParameterCount, "Max parameter count should be 8");
        assertEquals(Trans2FindFirst2.LIST_SIZE, next.maxDataCount, "Max data count should use LIST_SIZE");

     * {@return the type of the dependency}
     * A dependency can be a <abbr>JAR</abbr> file,
     * a modular-<abbr>JAR</abbr> if it is intended to be placed on the module path,
     * a <abbr>JAR</abbr> containing test classes, a POM file, <i>etc.</i>
     */
    @Nonnull
    Type getType();

    /**
     * {@return the time at which the dependency will be used}
     * It may be, for example, at compile time only, at run time, or at test time.

     * the path merely indicates where the artifact would eventually be stored.
     *
     * @param session The session to use, must not be {@code null}.
     * @param local The local repository, must not be {@code null}.
     * @param artifact The artifact for which to determine the path, must not be {@code null}.
     * @param remote – The source repository of the artifact, must not be {@code null}.

$ python main.py

// Now it can read the environment variable

Hello Wade Wilson from Python
```

</div>

////

As environment variables can be set outside of the code, but can be read by the code, and don't have to be stored (committed to `git`) with the rest of the files, it's common to use them for configurations or **settings**.

        assertEquals((int) offset, getFieldValue(write, "offset"), "Offset should be updated");
        assertEquals(remaining, getFieldValue(write, "remaining"), "Remaining should be updated");
        assertEquals(buffer, getFieldValue(write, "b"), "Buffer should be updated");
        assertEquals(off, getFieldValue(write, "off"), "Off should be updated");

    if (x <= 0) {
      throw new IllegalArgumentException(role + " (" + x + ") must be > 0");
    }
    return x;
  }

  @CanIgnoreReturnValue
  static long checkPositive(String role, long x) {
    if (x <= 0) {
      throw new IllegalArgumentException(role + " (" + x + ") must be > 0");
    }
    return x;
  }

  @CanIgnoreReturnValue

     * Creates a {@link org.apache.maven.api.Project} from a POM file.
     *
     * @param session the {@link Session}, must not be {@code null}
     * @param path the {@link Path}, must not be {@code null}
     * @throws ProjectBuilderException if the project cannot be created
     * @throws IllegalArgumentException if an argument is {@code null} or invalid
     * @see #build(ProjectBuilderRequest)
     */
    @Nonnull