import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Runnables}.
 *
 * @author Olivier Pernet
 */
@GwtCompatible
@NullUnmarked
public class RunnablesTest extends TestCase {
  public void testDoNothingRunnableIsSingleton() {
    assertThat(Runnables.doNothing()).isSameInstanceAs(Runnables.doNothing());
  }

      if (!executed) {
        runnables = new RunnableExecutorPair(runnable, executor, runnables);
        return;
      }
    }
    // Execute the runnable immediately. Because of scheduling this may end up getting called before
    // some of the previously added runnables, but we're OK with that. If we want to change the
    // contract to guarantee ordering among runnables we'd have to modify the logic here to allow
    // it.

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Runnables}.
 *
 * @author Olivier Pernet
 */
@GwtCompatible
@NullUnmarked
public class RunnablesTest extends TestCase {
  public void testDoNothingRunnableIsSingleton() {
    assertThat(Runnables.doNothing()).isSameInstanceAs(Runnables.doNothing());
  }

    list.add(new MockRunnable(countDownLatch), exec);
    list.add(new MockRunnable(countDownLatch), exec);
    assertEquals(3L, countDownLatch.getCount());

    list.execute();

    // Verify that all of the runnables execute in a reasonable amount of time.
    assertTrue(countDownLatch.await(1L, SECONDS));
  }

  public void testExecute_idempotent() {
    AtomicInteger runCalled = new AtomicInteger();

    list.add(new MockRunnable(countDownLatch), exec);
    list.add(new MockRunnable(countDownLatch), exec);
    assertEquals(3L, countDownLatch.getCount());

    list.execute();

    // Verify that all of the runnables execute in a reasonable amount of time.
    assertTrue(countDownLatch.await(1L, SECONDS));
  }

  public void testExecute_idempotent() {
    AtomicInteger runCalled = new AtomicInteger();

      "FINE: Q10000 scheduled after 100 µs: task",
      "FINE: Q10000 starting              : task",
      "FINE: Q10000 finished run in   0 µs: task",
    )
  }

  /** Inspect how many runnables have been enqueued. If none then we're truly sequential. */
  @Test fun singleQueueIsSerial() {
    redQueue.execute("task one", 100.µs) {
      log += "one:run@${taskFaker.nanoTime} parallel=${taskFaker.isParallel}"
    }

    sequential1.execute(
        new Runnable() {
          @Override
          public void run() {
            whileRunningToString[0] = "" + currentTask[0];
          }

          @Override
          public String toString() {
            return "my runnable's toString";
          }
        });
    assertThat(whileRunningToString[0]).contains("my runnable's toString");
  }

      // Log it and keep going -- bad runnable and/or executor. Don't punish the other runnables if
      // we're given a bad one. We only catch Exception because we want Errors to propagate up.
      log.get()
          .log(
              SEVERE,
              "RuntimeException while executing runnable "
                  + runnable
                  + " with executor "
                  + executor,
              e);
    }

    assertThat(result).isEqualTo(RETURN_VALUE);
  }

  public void testRunWithTimeout_returnsWithoutException() throws Exception {
    timeLimiter.runWithTimeout(Runnables.doNothing(), DELAY_MS, MILLISECONDS);
  }

  public void testRunWithTimeout_wrapsUncheckedException() throws Exception {
    RuntimeException exception = new RuntimeException("test");
    UncheckedExecutionException e =

    sequential1.execute(
        new Runnable() {
          @Override
          public void run() {
            whileRunningToString[0] = "" + currentTask[0];
          }

          @Override
          public String toString() {
            return "my runnable's toString";
          }
        });
    assertThat(whileRunningToString[0]).contains("my runnable's toString");
  }