t: Throwable,
          response: Response?,
        ) {
          t.printStackTrace(System.out)
          latch.countDown()
        }
      },
    )

    check(latch.await(30, TimeUnit.SECONDS)) { "Timed out waiting for test $number to finish." }
    val endNanos = System.nanoTime()
    val tookMs = TimeUnit.NANOSECONDS.toMillis(endNanos - startNanos.get())
    println("Took ${tookMs}ms")
  }

    assertEquals(3L, countDownLatch.getCount());

    list.execute();

    // Verify that all of the runnables execute in a reasonable amount of time.
    assertTrue(countDownLatch.await(1L, SECONDS));
  }

  public void testExecute_idempotent() {
    AtomicInteger runCalled = new AtomicInteger();
    list.add(runCalled::getAndIncrement, directExecutor());
    list.execute();

///

Ardından app ile bir `AsyncClient` oluşturup `await` kullanarak ona async request'ler gönderebiliriz.

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[9:12] *}

Bu, şu kullanıma denktir:

```Python
response = client.get('/')
```

...ki daha önce request'leri `TestClient` ile bu şekilde gönderiyorduk.

/// tip | İpucu

Yeni `AsyncClient` ile async/await kullandığımızı unutmayın; request asenkron çalışır.

# 並行処理と async / await { #concurrency-and-async-await }

*path operation 関数*のための `async def` 構文に関する詳細と、非同期コード、並行処理、並列処理の背景についてです。

## 急いでいますか？ { #in-a-hurry }

<abbr title="too long; didn't read - 長すぎて読まなかった"><strong>TL;DR:</strong></abbr>

次のように `await` で呼び出すよう指示されているサードパーティライブラリを使っているなら:

```Python
results = await some_library()
```

*path operation 関数*は次のように `async def` で宣言します:

```Python hl_lines="2"
@app.get('/')

# 동시성과 async / await { #concurrency-and-async-await }

*경로 처리 함수*에서의 `async def` 문법에 대한 세부사항과 비동기 코드, 동시성 및 병렬성에 대한 배경

## 바쁘신가요? { #in-a-hurry }

<abbr title="too long; didn't read - 너무 길어서 읽지 않음"><strong>TL;DR:</strong></abbr>

다음과 같이 `await`를 사용해 호출하라고 안내하는 제3자 라이브러리를 사용하는 경우:

```Python
results = await some_library()
```

다음처럼 *경로 처리 함수*를 `async def`를 사용해 선언하십시오:

```Python hl_lines="2"
@app.get('/')

                        startLatch.await();
                        response.received();
                        endLatch.countDown();
                    } catch (InterruptedException e) {
                        // Ignore
                    }
                }).start();
            }

            startLatch.countDown();
            assertTrue(endLatch.await(1, TimeUnit.SECONDS));

          @Override
          protected void finalize() {
            latch.countDown();
          }
        };
    unused = null; // Hint to the JIT that unused is unreachable
    GcFinalization.await(latch);
    assertEquals(0, latch.getCount());
  }

  public void testAwaitDone_future() {
    SettableFuture<@Nullable Void> future = SettableFuture.create();
    Object unused =
        new Object() {

    // Now give the get() thread time to finish:
    assertTrue(earlyListener.wasRun.await(1, SECONDS));

    // Now test an additional addListener call, which will be run in-thread:
    RecordingRunnable lateListener = new RecordingRunnable();
    listenable.addListener(lateListener, directExecutor());
    assertTrue(lateListener.wasRun.await(1, SECONDS));
  }

  public void testAdapters_nullChecks() throws Exception {

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[9:12] *}

Це еквівалентно:

```Python
response = client.get('/')
```

...що ми раніше використовували для надсилання запитів за допомогою `TestClient`.

/// tip | Порада

Зауважте, що ми використовуємо async/await із новим `AsyncClient` - запит є асинхронним.

///

        // Start timing
        long overallStart = System.nanoTime();

        for (int t = 0; t < threadCount; t++) {
            executor.submit(() -> {
                try {
                    startLatch.await();

                    long threadStart = System.nanoTime();
                    for (int i = 0; i < operationsPerThread; i++) {
                        try {