assertThrows(
        IllegalArgumentException.class,
        () -> InetAddresses.forString("1180::b059:65f4:e877:c40%eth9"));
  }

  public void testToAddrStringIPv4() {
    // Don't need to test IPv4 much; it just calls getHostAddress().
    assertThat(InetAddresses.toAddrString(InetAddresses.forString("1.2.3.4"))).isEqualTo("1.2.3.4");
  }

  public void testToAddrStringIPv6() {

            } catch (final UnknownHostException uhe) {
                /*
                 * Java cannot determine the localhost. This is basically a config
                 * issue on the host. There's not much we can do about it. Just
                 * to suppress NPEs that would result we can create a possibly bogus
                 * address. Pretty sure the below cannot actually thrown a UHE tho.
                 */

   * equivalent (except in the case of overflow) to the call {@code
   * addAll(Collections.nCopies(element, occurrences))}, which would presumably perform much more
   * poorly.
   *
   * @param element the element to add occurrences of; may be null only if explicitly allowed by the
   *     implementation

        assertTrue(propertiesIndex > 0, "Should contain properties element");

        // According to ELEMENT_ORDER: name should come before description, and properties should come much later
        assertTrue(nameIndex < descriptionIndex, "name should come before description");
        assertTrue(descriptionIndex < propertiesIndex, "description should come before properties");
    }

    @Test

      this.expectedCompletionWaitMillis = expectedCompletionWaitMillis;
      stopwatch = Stopwatch.createStarted();
    }

    /**
     * Asserts that the expected completion time has passed (and not "too much" time beyond that).
     */
    void assertCompletionExpected() {
      assertAtLeastTimePassed(stopwatch, expectedCompletionWaitMillis);
      assertTimeNotPassed(stopwatch, expectedCompletionWaitMillis + LONG_DELAY_MS);

    public void substitute(UnaryOperator<String> callback) {
        new DefaultInterpolator().interpolate(storage, callback);
    }

    /**
     * Writes the properties file to the given writer, preserving as much of its
     * structure as possible.
     *
     * @param out the writer
     * @throws IOException if an error occurs
     */
    protected void saveLayout(Writer out, boolean typed) throws IOException {

    public void substitute(UnaryOperator<String> callback) {
        new DefaultInterpolator().interpolate(storage, callback);
    }

    /**
     * Writes the properties file to the given writer, preserving as much of its
     * structure as possible.
     *
     * @param out the writer
     * @throws IOException if an error occurs
     */
    protected void saveLayout(Writer out, boolean typed) throws IOException {

    assertThat((long) arraysDim1 * arraysDim2).isNotEqualTo((long) (arraysDim1 * arraysDim2));

    boolean[][] arrays = new boolean[arraysDim1][];
    // it's shared to avoid using too much memory in tests
    boolean[] sharedArray = new boolean[arraysDim2];
    Arrays.fill(arrays, sharedArray);

    try {
      Booleans.concat(arrays);
      fail();

* And many other things

## Conclusion { #conclusion }

If you read and understood all this, now **you know much more** about virtual environments than many developers out there. 🤓

And it generates OpenAPI schemas.

That's how it works in Flask, Starlette, Responder, etc.

But then, we have again the problem of having a micro-syntax, inside of a Python string (a big YAML).

The editor can't help much with that. And if we modify parameters or Marshmallow schemas and forget to also modify that YAML docstring, the generated schema would be obsolete.

/// info

APISpec was created by the same Marshmallow developers.