assertThat(notification.getValue()).isEqualTo("a");
    assertThat(cache.size()).isEqualTo(1);
    assertThat(cache.getUnchecked("b")).isEqualTo("b");
  }

  // "Basher tests", where we throw a bunch of stuff at a LoadingCache and check basic invariants.

  /**
   * This is a less carefully-controlled version of {@link #testRemovalNotification_clear} - this is

    )
    ```

 *  New: `Response.body` is now non-null. This was generally the case in OkHttp 4.x, but the Kotlin
    type declaration was nullable to support rare cases like the body on `Response.cacheResponse`,
    `Response.networkResponse`, and `Response.priorResponse`. In such cases the body is now
    non-null, but attempts to read its content will fail.
 *  New: Kotlin-specific APIs for request tags. Kotlin language users can lookup tags with a type

import okio.FileSystem
import okio.ForwardingSink
import okio.ForwardingSource
import okio.Path
import okio.Path.Companion.toOkioPath
import okio.Sink
import okio.Source
import okio.buffer

/**
 * Caches HTTP and HTTPS responses to the filesystem so they may be reused, saving time and
 * bandwidth.
 *
 * The Cache instance must have exclusive access to the [directory], since the internal data structures

Der Client erhält für diesen Request einen **500 Internal Server Error**, aber die Anwendung arbeitet bei den nächsten Requests weiter, anstatt einfach komplett abzustürzen.

### Größere Fehler – Abstürze { #bigger-errors-crashes }

Dennoch kann es vorkommen, dass wir Code schreiben, der **die gesamte Anwendung zum Absturz bringt** und so zum Absturz von Uvicorn und Python führt. 💥

		if err != nil {
			return false
		}
		r.Body = hash.NewChecker(r.Body, md5.New(), want, r.ContentLength)
		return true
	}
	cs, err := hash.GetContentChecksum(r.Header)
	if err != nil {
		return false
	}
	if cs == nil || !cs.Type.IsSet() {
		return false
	}
	if cs.Valid() && !cs.Type.Trailing() {
		r.Body = hash.NewChecker(r.Body, cs.Type.Hasher(), cs.Raw, r.ContentLength)
	}
	return true
}

        assertTrue(id1.length() > 0);
        assertFalse(id1.contains("-"));
    }

    @Test
    public void test_generateId_format() {
        String id = queryHelper.generateId();
        // UUID without dashes should be 32 characters
        assertEquals(32, id.length());
        assertTrue(id.matches("[a-f0-9]{32}"));
    }

    @Test
    public void test_addDefaultSort_singleField() {

O cliente receberá um **Erro Interno do Servidor 500** para essa solicitação, mas o aplicativo continuará funcionando para as próximas solicitações em vez de travar completamente.

### Erros maiores - Travamentos { #bigger-errors-crashes }

No entanto, pode haver casos em que escrevemos algum código que **trava todo o aplicativo**, fazendo com que o Uvicorn e o Python travem. 💥

## Version 4.10.0

_2022-06-12_

 *  Upgrade: [Kotlin 1.6.20][kotlin_1_6_20].
 *  Upgrade: [Okio 3.0.0][okio_3_0_0].
 *  Fix: Recover gracefully when Android's `NativeCrypto` crashes with `"ssl == null"`. This occurs
    when OkHttp retrieves ALPN state on a closed connection.


## Version 4.9.3

_2021-11-21_

 *  Fix: Don't fail HTTP/2 responses if they complete before a `RST_STREAM` is sent.

El cliente obtendrá un **500 Internal Server Error** para ese request, pero la aplicación continuará funcionando para los siguientes requests en lugar de simplemente colapsar por completo.

### Errores Mayores - Colapsos { #bigger-errors-crashes }

Sin embargo, puede haber casos en los que escribamos algún código que **colapse toda la aplicación** haciendo que Uvicorn y Python colapsen. 💥

FastAPI로 웹 API를 만들 때 코드에 오류가 있으면, FastAPI는 보통 그 오류를 발생시킨 단일 요청 안에만 문제를 가둡니다. 🛡

클라이언트는 해당 요청에 대해 **500 Internal Server Error**를 받지만, 애플리케이션은 완전히 크래시하지 않고 다음 요청부터는 계속 동작합니다.

### 더 큰 오류 - 크래시 { #bigger-errors-crashes }

그럼에도 불구하고, 우리가 작성한 코드가 **전체 애플리케이션을 크래시**시켜 Uvicorn과 Python 자체가 종료되는 경우가 있을 수 있습니다. 💥

그래도 한 군데 오류 때문에 애플리케이션이 죽은 채로 남아 있기를 바라지는 않을 것입니다. 망가진 경로 처리를 제외한 나머지 *경로 처리*라도 **계속 실행**되기를 원할 가능성이 큽니다.