Set<Object> keys = cache.asMap().keySet();
      assertThat(keys.remove(null)).isFalse();
      assertThat(keys.remove(6)).isFalse();
      assertThat(keys.remove(-6)).isFalse();
      assertThat(keys.removeAll(asList(null, 0, 15, 1500))).isFalse();
      assertThat(keys.retainAll(asList(null, 0, 15, 1500))).isFalse();
      checkEmpty(keys);
      checkEmpty(cache);
    }
  }

    assertThat(cacheControl.isPrivate).isFalse()
    assertThat(cacheControl.isPublic).isFalse()
    assertThat(cacheControl.mustRevalidate).isFalse()
    assertThat(cacheControl.maxStaleSeconds).isEqualTo(-1)
    assertThat(cacheControl.minFreshSeconds).isEqualTo(-1)
    assertThat(cacheControl.onlyIfCached).isFalse()
    assertThat(cacheControl.mustRevalidate).isFalse()
  }

  @Test
  @Throws(Exception::class)

    client.webSocket!!.close(1000, "Hello!")
    // This will trigger a close response.
    assertThat(server.processNextFrame()).isFalse()
    server.listener.assertClosing(1000, "Hello!")
    server.webSocket!!.finishReader()
    server.webSocket!!.close(1000, "Goodbye!")
    assertThat(client.processNextFrame()).isFalse()
    client.listener.assertClosing(1000, "Goodbye!")
    client.webSocket!!.finishReader()

        Object value = warmed.get(i - WARMUP_MIN).getValue();
        assertThat(cache.asMap().remove(key, -1)).isFalse();
        assertThat(cache.asMap().remove(key, value)).isTrue();
        assertThat(cache.asMap().remove(key, -1)).isFalse();
        assertThat(cache.asMap().containsKey(key)).isFalse();
      }
      checkEmpty(cache);
    }
  }


  public void testKeySet_populated() {

    testInstances += this

    assertThat(serverA.started).isTrue()
    assertThat(serverB.started).isTrue()
    assertThat(serverC.started).isFalse()

    assertThat(serverD.started).isTrue()
    assertThat(serverE.started).isTrue()
    assertThat(serverF.started).isFalse()
  }

  private companion object {
    val testInstances = CopyOnWriteArrayList<StartStopTest>()

    private val dispatcherD = ClosableDispatcher()

    assertThat(cookie.domain).isEqualTo("example.com")
    assertThat(cookie.path).isEqualTo("/")
    assertThat(cookie.secure).isFalse()
    assertThat(cookie.httpOnly).isFalse()
    assertThat(cookie.persistent).isFalse()
    assertThat(cookie.hostOnly).isFalse()
    assertThat(cookie.sameSite).isNull()
  }

  @Test fun newBuilder() {
    val cookie =
      parseCookie(0L, url, "c=d; Max-Age=1")!!

    assertThat(hasCycle(directedGraph)).isFalse();
    assertThat(hasCycle(undirectedGraph)).isFalse();
  }

  @Test
  public void hasCycle_isolatedNodes() {
    for (MutableGraph<Integer> graph : graphsToTest) {
      graph.addNode(1);
      graph.addNode(2);
    }
    assertThat(hasCycle(directedGraph)).isFalse();
    assertThat(hasCycle(undirectedGraph)).isFalse();
  }

  @Test

        Object value = warmed.get(i - WARMUP_MIN).getValue();
        assertThat(cache.asMap().remove(key, -1)).isFalse();
        assertThat(cache.asMap().remove(key, value)).isTrue();
        assertThat(cache.asMap().remove(key, -1)).isFalse();
        assertThat(cache.asMap().containsKey(key)).isFalse();
      }
      checkEmpty(cache);
    }
  }


  public void testKeySet_populated() {

    assertThat(selection2.hasNext()).isFalse()

    // The second selection will contain all failed routes.
    val selection3 = routeSelector.next()
    assertThat(selection3.next()).isEqualTo(regularRoutes[0])
    assertThat(selection3.hasNext()).isFalse()
    assertThat(routeSelector.hasNext()).isFalse()
  }

  @Test fun failedRouteWithMultipleProxies() {

    Future<?> possiblyIgnoredError1 = serializer.submitAsync(thirdCallable, directExecutor());
    secondFuture.cancel(true);
    assertThat(secondCallable.called).isFalse();
    assertThat(thirdCallable.called).isFalse();
    firstFuture.set(null);
    assertThat(secondCallable.called).isFalse();
    assertThat(thirdCallable.called).isTrue();
  }

  public void testCancellationMultipleThreads() throws Exception {