ここで、`/unicorns/yolo`をリクエストすると、*path operation*は`UnicornException`を`raise`します。

しかし、これは`unicorn_exception_handler`で処理されます。

そのため、HTTPステータスコードが`418`で、JSONの内容が以下のような明確なエラーを受け取ることになります:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | 技術詳細

また、`from starlette.requests import Request`と`from starlette.responses import JSONResponse`を使用することもできます。

      throw new AssertionError(e);
    }

    if (referenceException == null) {
      if (targetException != null) {
        throw new AssertionError("Target threw exception when reference did not", targetException);
      }

      /*
       * Reference iterator returned a value, so we should expect the
       * same value from the target
       */

    // problem on any failure.

    // Yeah it's n^2.
    for (Object object : exp) {
      if (!act.remove(object)) {
        fail(
            "did not contain expected element "
                + object
                + ", "
                + "expected = "
                + exp
                + ", actual = "
                + actString);
      }

---

But if you're curious about this specific code example and you're still entertained, here are some extra details.

#### String with `value.startswith()` { #string-with-value-startswith }

Did you notice? a string using `value.startswith()` can take a tuple, and it will check each value in the tuple:

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[16:19] hl[17] *}

                        newSessId = response.getSessionId();

                        if (newSessId != curSessId) {
                            throw new SmbAuthException("Server did not reauthenticate after expiration");
                        }
                    } catch (SmbAuthException sae) {
                        throw sae;
                    } catch (SmbException e) {

     * insertion order property of ObjectCountHashMap. In that event, we need to convert to a
     * ObjectCountLinkedHashMap, but we need to know we did that so we can convert back.
     */
    boolean isLinkedHash = false;

    /**
     * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
     * ImmutableMultiset#builder}.

     * course of a call to {@code remove()}. Thus, the expectation doesn't hold that {@code
     * map.remove(x)} returns the same value which {@code map.get(x)} did immediately beforehand.
     */
    @Override
    public void testRemove() {
      Map<String, Map<Integer, Character>> map;
      try {
        map = makePopulatedMap();

     * course of a call to {@code remove()}. Thus, the expectation doesn't hold that {@code
     * map.remove(x)} returns the same value which {@code map.get(x)} did immediately beforehand.
     */
    @Override
    public void testRemove() {
      Map<String, Map<Integer, Character>> map;
      try {
        map = makePopulatedMap();

    SUCCESS,

    /** The method returned false. */
    FAILURE,

    /** The method threw an InterruptedException. */
    INTERRUPT,

    /** The method did not return or throw anything. */
    HANG;

    @Override
    public String toString() {
      return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, name());
    }
  }

If you did not have a Adoptium Java 17 SDK installed before importing the project into IntelliJ and after adding Adoptium Java 17 SDK your IntelliJ still uses the wrong SDK version, you might need to invalidate IntelliJ's caches before reloading the project.