## Jalankan kode

Semua blok-blok kode dapat disalin dan digunakan langsung (Mereka semua sebenarnya adalah file python yang sudah teruji).

Untuk menjalankan setiap contoh, salin kode ke file `main.py`, dan jalankan `uvicorn` dengan:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

   * are used from Java 9 or higher (i.e., high enough to trigger the VarHandle code path), such a
   * lookup would fail with an IllegalAccessException. That may then trigger use of Unsafe (possibly
   * with a warning under recent JVMs), or it may fall back even further to
   * AtomicReferenceFieldUpdaterAtomicHelper, which would fail with a similar problem to
   * VarHandleAtomicHelperMaker, forcing us all the way to SynchronizedHelper.
   *

    @BeforeEach
    void setUp() throws Exception {
        source = new Source();

        projectArtifact = createArtifactSpec("project", "1.0", null);
    }

    @Test
    @Disabled("works, but we don't fail on cycles presently")
    void testCircularDependencyNotIncludingCurrentProject()
            throws ArtifactResolutionException, InvalidVersionSpecificationException {
        ArtifactSpec a = createArtifactSpec("a", "1.0");

  public void testTimeoutOnGetWorksCorrectly() throws InterruptedException, ExecutionException {

    // The task thread waits for the latch, so we expect a timeout here.
    try {
      future.get(20, MILLISECONDS);
      fail("Should have timed out trying to get the value.");
    } catch (TimeoutException expected) {
    } finally {
      latch.countDown();
    }
  }

  /**

        DataStoreParams paramMap = new DataStoreParams();
        paramMap.put("url_exclude_pattern", ".*");

        try {
            indexUpdateCallback.isUrlCrawlable(paramMap, null);
            fail("Expected NullPointerException for null URL");
        } catch (NullPointerException e) {
            // Expected behavior - the method doesn't handle null URLs
        }
    }

以下の様な画面になります:

<img src="/img/tutorial/debugging/image01.png">

---

Pycharmを使用する場合、次のことが可能です:

* 「実行」メニューをオープン。
* オプション「デバッグ...」を選択。
* 次にコンテキストメニューが表示される。
* デバッグするファイル (ここでは `main.py`) を選択。

すると、**FastAPI** コードでサーバーが起動され、ブレークポイントで停止したりするでしょう。

以下の様な画面になります:

	if !gotBuckets.Equals(shouldHaveBuckets) {
		c.Fatalf("root user should have access to all buckets")
	}

	// This must fail.
	if err := userAdmClient.AddUser(ctx, globalActiveCred.AccessKey, globalActiveCred.SecretKey); err == nil {
		c.Fatal("AddUser() for root credential must fail via root STS creds")
	}
}

// TestSTSTokenRevoke - tests the token revoke API
func (s *TestSuiteIAM) TestSTSTokenRevoke(c *check) {

import assertk.assertions.isEmpty
import assertk.assertions.isEqualTo
import assertk.assertions.isFalse
import assertk.assertions.isGreaterThan
import assertk.assertions.isNull
import assertk.assertions.isTrue
import assertk.fail
import java.net.CookieHandler
import java.net.CookieManager
import java.net.CookiePolicy
import java.net.HttpCookie
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.URI

    Future<?> possiblyIgnoredError = threadPool.submit(new Interrupter(currentThread()));
    try {
      Queues.drain(q, ImmutableList.of(), 100, MAX_VALUE, NANOSECONDS);
      fail();
    } catch (InterruptedException expected) {
    }
  }

  public void testDrainUninterruptibly_doesNotThrow() throws Exception {
    for (BlockingQueue<Object> q : blockingQueues()) {

      boolean unused =
          setFuture((ListenableFuture<O>) localInputFuture); // Respects cancellation cause setting
      return;
    }

    /*
     * Any of the setException() calls below can fail if the output Future is cancelled between now
     * and then. This means that we're silently swallowing an exception -- maybe even an Error. But