## 依存関係 { #dependencies }

アプリケーションの複数箇所で使う依存関係が必要になります。

そのため、専用の `dependencies` モジュール（`app/dependencies.py`）に置きます。

ここではカスタムヘッダー `X-Token` を読む簡単な依存関係を使います:

{* ../../docs_src/bigger_applications/app_an_py310/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | 豆知識

この例を簡単にするために架空のヘッダーを使っています。

    assertThat(matcher.trimFrom(s)).isEqualTo(s.substring(0, 1));
    assertEquals(1, matcher.countIn(s));
  }

  /**
   * Checks that expected is equals to out, and further, if in is equals to expected, then out is
   * successfully optimized to be identical to in, i.e. that "in" is simply returned.
   */
  private void assertEqualsSame(String expected, String in, String out) {
    if (expected.equals(in)) {

    long elapsedMillis = stopwatch.elapsed(MILLISECONDS);
    assertThat(elapsedMillis).isLessThan(timelimitMillis);
  }

  /**
   * Awaits an interrupt, then clears the interrupted status. Similar to {@code
   * assertTrue(Thread.interrupted())} except that this version tolerates late interrupts.
   */
  private static void assertInterrupted() {
    try {
      /*

- Sometimes, the scheduler incorrectly placed a pod in the "unschedulable" queue instead of the "backoff" queue. This happened when some plugin previously declared the pod as "unschedulable" and then in a later attempt encounters some other error. Scheduling of that pod then got delayed by up to five minutes, after which periodic flushing moved the pod back into the "active" queue. ([#120334](https://github.com/kubernetes/kubernetes/pull/120334), [@pohly](https://github.com/pohly))...

                createFacetQueryView("timestamp", "1month", "timestamp:[now-1M TO *]"));
        final MockHttpServletRequest request = new MockHttpServletRequest();
        // Send timestamp first, then filetype — result should follow FacetQueryView order, not request order
        request.setParameterValues("ex_q", new String[] { "timestamp:[now-1M TO *]", "filetype:HTML", "filetype:WORD" });

     * provide a better implementation than the input Collection, at least without dramatic changes
     * like copying it to a new Set—which might then test for element equality differently.
     */
    @SuppressWarnings("UndefinedEquals")
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof InPredicate) {

* 👷 Refactor GitHub Action to comment docs deployment URLs and update token. PR [#11925](https://github.com/fastapi/fastapi/pull/11925) by [@tiangolo](https://github.com/tiangolo).
* 👷 Update tokens for GitHub Actions. PR [#11924](https://github.com/fastapi/fastapi/pull/11924) by [@tiangolo](https://github.com/tiangolo).

   *   <li>{@code [3..6]} does not enclose {@code (1..1]} (even though it contains every value
   *       contained by the latter range)
   * </ul>
   *
   * <p>Note that if {@code a.encloses(b)}, then {@code b.contains(v)} implies {@code
   * a.contains(v)}, but as the last two examples illustrate, the converse is not always true.
   *
   * <p>Being reflexive, antisymmetric and transitive, the {@code encloses} relation defines a

      lastItem = tmp;
    }
    assertEquals((Integer) 30, lastItem);
  }

  /**
   * This tests a special case where removeAt has to trickle an element first down one level from a
   * min to a max level, then up one level above the index of the removed element. It also tests
   * that skipMe in the iterator plays nicely with forgetMeNot.
   */
  public void testIteratorInvalidatingIteratorRemove2() {

    // the monitor with the guard satisfied. Therefore as soon as tearDownLatch is triggered, we
    // should be able to enter the monitor, and then we set the guard to satisfied for the benefit
    // of any remaining waiting threads.

    tearDownLatch.countDown();
    assertTrue(
        "Monitor still occupied in tearDown()",