# Dependencies with yield { #dependencies-with-yield }

FastAPI supports dependencies that do some <dfn title='sometimes also called "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code", etc.'>extra steps after finishing</dfn>.

To do this, use `yield` instead of `return`, and write the extra steps (code) after.

/// tip

Make sure to use `yield` one single time per dependency.

///

/// note | Technical Details

# `yield`를 사용하는 의존성 { #dependencies-with-yield }

FastAPI는 <dfn title='때로는 "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code" 등으로도 불립니다'>작업 완료 후 추가 단계</dfn>를 수행하는 의존성을 지원합니다.

이를 구현하려면 `return` 대신 `yield`를 사용하고, 추가로 실행할 단계 (코드)를 그 뒤에 작성하세요.

/// tip

각 의존성마다 `yield`는 한 번만 사용해야 합니다.

///

/// note | 기술 세부사항

다음과 함께 사용할 수 있는 모든 함수:

        queryFieldConfig.init();
        ComponentUtil.register(queryFieldConfig, "queryFieldConfig");
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        ComponentUtil.setFessConfig(null);
        super.tearDown(testInfo);
    }

    @Test
    public void test_init() {
        // Test initialization with null fields
        queryFieldConfig.init();

  private val log = mutableListOf<String>()
  private val redQueue = taskRunner.newQueue()
  private val blueQueue = taskRunner.newQueue()
  private val greenQueue = taskRunner.newQueue()

  @AfterEach
  internal fun tearDown() {
    taskFaker.close()
  }

  @Test fun executeDelayed() {
    redQueue.execute("task", 100.µs) {
      log += "run@${taskFaker.nanoTime}"
    }

    taskFaker.advanceUntil(0.µs)

        suggestJob = new SuggestJob();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        // Clean up temp directory
        if (tempDir != null && tempDir.exists()) {
            deleteDirectory(tempDir);
        }
        super.tearDown(testInfo);
    }

    private void createRequiredDirectories() {

  }

  private Path tempDir;

  @Override
  protected void setUp() throws Exception {
    tempDir = Files.createTempDirectory("MoreFilesTest");
  }

  @Override
  protected void tearDown() throws Exception {
    if (tempDir != null) {
      // delete tempDir and its contents
      Files.walkFileTree(
          tempDir,
          new SimpleFileVisitor<Path>() {
            @Override

    @BeforeEach
    void setUp() {
        cli = new MavenCli();
        origBasedir = System.getProperty(MavenCli.MULTIMODULE_PROJECT_DIRECTORY);
    }

    @AfterEach
    void tearDown() throws Exception {
        if (origBasedir != null) {
            System.setProperty(MavenCli.MULTIMODULE_PROJECT_DIRECTORY, origBasedir);
        } else {

    call =
      clientTestRule.newClient().newCall(
        Request
          .Builder()
          .url("https://$uriHost:$uriPort/")
          .build(),
      ) as RealCall
  }

  @AfterEach fun tearDown() {
    factory.close()
  }

  @Test fun singleRoute() {
    val address = factory.newAddress()
    val routeSelector = newRouteSelector(address)
    assertThat(routeSelector.hasNext()).isTrue()

   */
  private val routePlanner = FakeRoutePlanner(taskFaker = taskFaker)
  private val finder = FastFallbackExchangeFinder(routePlanner, taskRunner)

  @AfterEach
  fun tearDown() {
    taskFaker.close()
    routePlanner.close()
  }

  @Test
  fun takeConnectedConnection() {
    val plan0 = routePlanner.addPlan()
    plan0.connectState = TLS_CONNECTED

        mockResponse = new TestHttpServletResponse();
        mockFilterChain = new TestFilterChain();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        ComponentUtil.setFessConfig(null);
        super.tearDown(testInfo);
    }

    private void resetMocks() {
        mockRequest = new TestHttpServletRequest();
        mockResponse = new TestHttpServletResponse();