} catch (ExecutionException expected) {
      assertThat(expected.getCause()).isInstanceOf(MyException.class);
      assertEquals(
          "Nothing should be logged", 0, aggregateFutureLogHandler.getStoredLogRecords().size());
    }
  }

  /** Ensure that errors are always logged. */
  public void testAllAsList_logging_error() throws Exception {
    try {
      getDone(allAsList(immediateFailedFuture(new MyError())));

  @Param({"0", "10", "50", "100"})
  int percent;

  // Whether to use a precomputed CharMatcher
  @Param("true")
  boolean precomputed;

  enum Size {
    DEFAULT,
    SMALL;
  }

  @Param Size size;

  // Whether to ensure there is a matching character in the first position
  // to force the trimming code to run.
  @Param("false")
  boolean forceSlow;