*
   * TODO: make this inline once this is fixed: https://github.com/oracle/graal/issues/3466
   */
  fun schedule(
    name: String,
    delayNanos: Long = 0L,
    block: () -> Long,
  ) {
    schedule(
      object : Task(name) {
        override fun runOnce(): Long = block()
      },
      delayNanos,
    )
  }

  /**
   * Executes [block] once on a task runner thread.
   *

        assertEquals(8, result); // Structure size (2) + offset (2) + length (4)
        assertNotNull(response.getResults());
        // Bug in implementation: when bufferLength is 0, it still tries to decode at least once
        assertEquals(1, response.getResults().length); // Due to implementation bug
    }

    @Test
    @DisplayName("Test readBytesWireFormat with invalid structure size throws exception")

	// wait for sys.boot_completed.
	if err := adb("wait-for-device", "exec-out", "while [[ -z $(getprop sys.boot_completed) ]]; do sleep 1; done;"); err != nil {
		return 0, err
	}

	// Done once per make.bash.
	if err := adbCopyGoroot(); err != nil {
		return 0, err
	}

	// Prepare a temporary directory that will be cleaned up at the end.
	// Binary names can conflict.

This provider might be charging you per request, and calling it might take some extra time than if you had a fixed mock user for tests.

You probably want to test the external provider once, but not necessarily call it for every test that runs.

In this case, you can override the dependency that calls that provider, and use a custom dependency that returns a mock user, only for your tests.

  /*
   * TODO(b/242884182): Figure out why this helps produce the same class file when we compile most
   * of common.collect a second time with the results of the first compilation on the classpath. Or
   * just back this out once we stop doing that (which we'll do after our internal GWT setup
   * changes).
   */
  @Override
  public ImmutableMap<Object, Collection<Object>> asMap() {
    return super.asMap();
  }

    // unless it's actually going to be used; validate() is called for all set method calls, so it
    // needs to be fast.
    // (We could instead generate the message once, when the set is created, but zero is better.)
    if (!validator.get()) {
      throw new IllegalStateException(errorMessage.get());
    }
  }

/// tip | İpucu

Sonraki bölümler **mutlaka "gelişmiş" olmak zorunda değildir**.

Kullanım şeklinize bağlı olarak, çözümünüz bu bölümlerden birinde olabilir.

///

## Önce Öğreticiyi Okuyun

[Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} sayfasındaki bilgilerle **FastAPI**'nın çoğu özelliğini kullanabilirsiniz.

      // If the worker is not yet running, the delegate Executor might reject our attempt to start
      // it. To preserve FIFO order and failure atomicity of rejected execution when the same
      // Runnable is executed more than once, allocate a wrapper that we know is safe to remove by
      // object identity.
      // A data structure that returned a removal handle from add() would allow eliminating this
      // allocation.
      submittedTask =

    @Mock
    SmbResource parent;
    @Mock
    SmbResourceLocator locator;
    @Mock
    Configuration config;

    private static boolean handlerRegistered = false;

    // Register SMB URL handler once for all tests
    @BeforeAll
    static void registerSmbHandler() {
        if (!handlerRegistered) {
            try {
                // Try to register the handler factory

You can define logic (code) that should be executed before the application **starts up**. This means that this code will be executed **once**, **before** the application **starts receiving requests**.

The same way, you can define logic (code) that should be executed when the application is **shutting down**. In this case, this code will be executed **once**, **after** having handled possibly **many requests**.