tasks.add(command);
    }

    boolean hasNext() {
      return !tasks.isEmpty();
    }

    void runNext() {
      assertTrue("expected at least one task to run", hasNext());
      tasks.remove().run();
    }

    void runAll() {
      while (hasNext()) {
        runNext();
      }
    }
  }

  private FakeExecutor fakePool;
  private SequentialExecutor e;

  @Override

      tasks.add(command);
    }

    boolean hasNext() {
      return !tasks.isEmpty();
    }

    void runNext() {
      assertTrue("expected at least one task to run", hasNext());
      tasks.remove().run();
    }

    void runAll() {
      while (hasNext()) {
        runNext();
      }
    }
  }

  private FakeExecutor fakePool;
  private SequentialExecutor e;

  @Override

        method.getName(),
        fair ? "(fair)" : "(nonfair)",
        (timeout == null) ? "untimed" : timeout,
        scenario,
        expectedOutcome);
  }

  @Override
  protected void runTest() throws Throwable {
    Runnable runChosenTest =
        new Runnable() {
          @Override
          public void run() {
            runChosenTest();
          }
        };

  @Override
  protected void runTest() throws Throwable {
    if (profileTests) runTestProfiled();
    else super.runTest();
  }

  protected void runTestProfiled() throws Throwable {
    long t0 = System.nanoTime();
    try {
      super.runTest();
    } finally {
      long elapsedMillis = (System.nanoTime() - t0) / (1000L * 1000L);