networkAsMutableNetwork.addNode(N1);
    assertThat(networkAsMutableNetwork.addEdge(N1, N5, E15)).isTrue();
    assertThat(networkAsMutableNetwork.addEdge(N4, N1, E41)).isTrue();
    assertThat(networkAsMutableNetwork.addEdge(N2, N3, E23)).isTrue();
    assertThat(network.nodes()).containsExactly(N1, N5, N4, N2, N3);
    assertThat(network.edges()).containsExactly(E15, E41, E23);
    assertThat(network.edgesConnecting(N1, N5)).containsExactly(E15);

    putEdge(N1, N2);
    putEdge(N4, N1);
    assertThat(graphAsMutableGraph.removeNode(N1)).isTrue();
    assertThat(graphAsMutableGraph.removeNode(N1)).isFalse();
    assertThat(graph.nodes()).containsExactly(N2, N4);

    assertThat(graph.adjacentNodes(N2)).isEmpty();
    assertThat(graph.predecessors(N2)).isEmpty();
    assertThat(graph.successors(N2)).isEmpty();
    assertThat(graph.incidentEdges(N2)).isEmpty();

  private val client = OkHttpClient()

  @Test
  fun passingTest() {
    assertThat("hello").isEqualTo("hello")
  }

  @Test
  fun testMockWebServer() {
    server.enqueue(MockResponse(body = "abc"))
    server.start()

    client.newCall(Request(url = server.url("/"))).execute().use {
      assertThat(it.body.string()).isEqualTo("abc")
    }
  }

  @Test
  fun testExternalSite() {

  @Test
  fun defaultPrefix() {
    assertThat(Platform().getPrefix()).isEqualTo("OkHttp")
  }

  @Test
  fun testToStringIsClassname() {
    assertThat(Platform().toString()).isEqualTo("Platform")
  }

  @Test
  fun testNotAndroid() {
    platform.assumeNotAndroid()

    // This is tautological so just confirms that it runs.
    assertThat(isAndroid).isEqualTo(false)
  }

    TestRunnable runnable = new TestRunnable();
    ListenableFuture<?> runnableFuture = e.submit(runnable);
    assertThat(runnableFuture).isInstanceOf(TrustedListenableFutureTask.class);
    assertTrue(runnableFuture.isDone());
    assertTrue(runnable.run);

    ListenableFuture<String> callableFuture = e.submit(new TestCallable());
    assertThat(callableFuture).isInstanceOf(TrustedListenableFutureTask.class);
    assertTrue(callableFuture.isDone());

    assertThat(converter.convert("1")).isEqualTo(1);
    assertThat(converter.convert("0")).isEqualTo(0);
    assertThat(converter.convert("-1")).isEqualTo(-1);
    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);

    assertThat(synStream.outFinished).isFalse()
    val data = peer.takeFrame()
    assertThat(data.type).isEqualTo(Http2.TYPE_DATA)
    assertArrayEquals("square".toByteArray(), data.data)
    val fin = peer.takeFrame()
    assertThat(fin.type).isEqualTo(Http2.TYPE_DATA)
    assertThat(fin.inFinished).isTrue()
    assertThat(fin.outFinished).isFalse()
    val rstStream = peer.takeFrame()

    for (LoadingCache<Object, Object> cache : caches()) {
      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);
    }

    for (LoadingCache<Object, Object> cache : caches()) {
      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);
    }

            .build(loader);

    // 1 won't be cached
    assertThat(cache.getUnchecked(1)).isEqualTo(1);
    assertThat(cache.asMap().keySet()).isEmpty();

    CacheTesting.processPendingNotifications(cache);
    assertThat(removalListener.getCount()).isEqualTo(1);

    // 2 will be cached
    assertThat(cache.getUnchecked(2)).isEqualTo(2);
    assertThat(cache.asMap().keySet()).containsExactly(2);