* initial write to timer is never definitely visible to Fire.run since it is assigned after
   * SES.schedule is called. Therefore Fire.run has to check for null. However, it should be visible
   * if Fire.run is called by delegate.addListener since addListener is called after the assignment
   * to timer, and importantly this is the main situation in which we need to be able to see the
   * write.
   *

        @Override
        public boolean accept(SmbFile file) throws SmbException {
            lastFile = file;
            // Actually interact with the file to verify the mock interaction
            if (file != null) {
                lastPath = file.getPath();
            }
            return true;
        }
    }

    @Nested
    @DisplayName("Happy path – accept is called and returns true")
    class HappyPath {
        @Test

Ensuite, il 🤖 prendra la première tâche à finir (disons, notre « slow-file » 📝) et continuera à faire avec cette dernière ce qu'il était censé.

 *
 * @author Isaac Shum
 * @since 1.0
 */
@GwtCompatible
public final class Callables {
  private Callables() {}

  /** Creates a {@code Callable} which immediately returns a preset value each time it is called. */
  public static <T extends @Nullable Object> Callable<T> returning(@ParametricNullness T value) {
    return () -> value;
  }

  /**
   * Creates an {@link AsyncCallable} from a {@link Callable}.
   *

    try {
      future.get();
      Assert.fail("This call was supposed to throw an ExecutionException");
    } catch (ExecutionException expected) {
      Assert.assertSame(expectedCause, expected.getCause());
    }
  }

  public void assertTimeout() throws Exception {
    // Verify that the listener does not get called in a reasonable amount of
    // time.

          private boolean called = false;

          @Override
          public void onSuccess(String result) {
            fail("Was not expecting onSuccess() to be called.");
          }

          @Override
          public void onFailure(Throwable t) {
            synchronized (monitor) {
              assertFalse(called);
              assertThat(t).isInstanceOf(CancellationException.class);

    listener = new MockFutureListener(resultFuture);
  }

  public void testFutureGetBeforeCallback() throws Exception {
    // Verify that get throws a timeout exception before the callback is called.
    assertThrows(TimeoutException.class, () -> resultFuture.get(1L, MILLISECONDS));
  }

  public void testFutureGetThrowsWrappedException() throws Exception {
    inputFuture.setException(EXCEPTION);

        // Should have created 4 indices (config x2, user x1, log x1)
        assertEquals(4, testClient.createdIndices.size());
        // Should have called addMapping for each created index
        assertEquals(4, testClient.addMappingCalls.size());
        // Should have called createAlias for each created index
        assertEquals(4, testClient.createAliasCalls.size());
        // No reindex calls since indices are new

    boolean[] called = new boolean[1];
    f.addCallback(
        new FutureCallback<String>() {
          @Override
          public void onSuccess(String result) {
            called[0] = true;
          }

          @Override
          public void onFailure(Throwable t) {}
        },
        directExecutor());
    assertThat(called[0]).isTrue();
  }

import okio.IOException

interface Callback {
  /**
   * Called when the request could not be executed due to cancellation, a connectivity problem or
   * timeout. Because networks can fail during an exchange, it is possible that the remote server
   * accepted the request before the failure.
   */
  fun onFailure(
    call: Call,
    e: IOException,
  )

  /**