performanceTestCommandLine(
                    "clean performance:%testProject%PerformanceAdHocTest --tests \"%scenario%\"",
                    "%performance.baselines%",
                    """--warmups %warmups% --runs %runs% --checks %checks% --channel %channel% --profiler %profiler% %additional.gradle.parameters%""",
                    os,
                    "%testJavaVersion%",
                    "%testJavaVendor%",

        gradleStep(
            listOf(
                "clean",
                "performance:${testProject}PerformanceAdHocTest",
                tests.map { """--tests "$it"""" }.joinToString(" "),
                """--warmups 2 --runs 2 --checks none""",
                "-PtestJavaVersion=${os.perfTestJavaVersion.major}",
                "-PtestJavaVendor=${os.perfTestJavaVendor}",
                "-PautoDownloadAndroidStudio=true",

  static final int WARMUP_MIN = 120;
  static final int WARMUP_MAX = 135;
  static final int WARMUP_SIZE = WARMUP_MAX - WARMUP_MIN;

  public void testSize_populated() {
    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed
      List<Entry<Object, Object>> warmed = warmUp(cache);
      assertEquals(WARMUP_SIZE, cache.size());

      assertNotSame(originalHead, segment.accessQueue.peek());
      assertEquals(cache.size(), accessQueueSize(cache));
    }
  }

  /** Warms the given cache by getting all values in {@code [start, end)}, in order. */
  static void warmUp(LoadingCache<Integer, Integer> map, int start, int end) {
    checkNotNull(map);
    for (int i = start; i < end; i++) {
      map.getUnchecked(i);
    }
  }

  static final int WARMUP_MIN = 120;
  static final int WARMUP_MAX = 135;
  static final int WARMUP_SIZE = WARMUP_MAX - WARMUP_MIN;

  public void testSize_populated() {
    for (LoadingCache<Object, Object> cache : caches()) {
      // don't let the entries get GCed
      List<Entry<Object, Object>> warmed = warmUp(cache);
      assertEquals(WARMUP_SIZE, cache.size());

      assertNotSame(originalHead, segment.accessQueue.peek());
      assertEquals(cache.size(), accessQueueSize(cache));
    }
  }

  /** Warms the given cache by getting all values in {@code [start, end)}, in order. */
  static void warmUp(LoadingCache<Integer, Integer> map, int start, int end) {
    checkNotNull(map);
    for (int i = start; i < end; i++) {
      map.getUnchecked(i);
    }
  }

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // // #1
    }
    stopwatch.sleepMillis(4500); // #2: back to cold state (warmup period + repay last acquire)
    for (int i = 0; i < 3; i++) { // only three steps, we're somewhere in the warmup period
      limiter.acquire(); // #3
    }

    limiter.setRate(4.0); // double the rate!

          UnsupportedOperationException.class, () -> cache.asMap().keySet().addAll(asList(1, 2)));
    }
  }


  public void testKeySet_clear() {
    for (LoadingCache<Object, Object> cache : caches()) {
      warmUp(cache, 0, 100);

      Set<Object> keys = cache.asMap().keySet();
      keys.clear();
      checkEmpty(keys);
      checkEmpty(cache);
    }
  }

  public void testKeySet_empty_remove() {

          UnsupportedOperationException.class, () -> cache.asMap().keySet().addAll(asList(1, 2)));
    }
  }


  public void testKeySet_clear() {
    for (LoadingCache<Object, Object> cache : caches()) {
      warmUp(cache, 0, 100);

      Set<Object> keys = cache.asMap().keySet();
      keys.clear();
      checkEmpty(keys);
      checkEmpty(cache);
    }
  }

  public void testKeySet_empty_remove() {

    for (int i = 0; i < 8; i++) {
      limiter.acquire(); // // #1
    }
    stopwatch.sleepMillis(4500); // #2: back to cold state (warmup period + repay last acquire)
    for (int i = 0; i < 3; i++) { // only three steps, we're somewhere in the warmup period
      limiter.acquire(); // #3
    }

    limiter.setRate(4.0); // double the rate!