private fun request(): Request.Builder = Request.Builder().url(url)

  internal class LogRecorder(
    val prefix: Regex = Regex(""),
  ) : HttpLoggingInterceptor.Logger {
    private val logs = mutableListOf<String>()
    private var index = 0

    fun assertLogEqual(expected: String) =
      apply {
        assertThat(index, "No more messages found")
          .isLessThan(logs.size)

      )
      for (line in bodyLines) {
        writeUtf8(line)
        writeUtf8("\n")
      }
    }
  }

  private fun readJournalLines(): List<String> {
    val result = mutableListOf<String>()
    filesystem.read(journalFile) {
      while (true) {
        val line = readUtf8Line() ?: break
        result.add(line)
      }
    }
    return result
  }

  }

  @Test
  fun dnsReturnsZeroIpAddresses() {
    // Configure a DNS that returns our local MockWebServer for android.com.
    val dns = FakeDns()
    val ipAddresses = mutableListOf<InetAddress>()
    dns["android.com"] = ipAddresses
    client =
      client
        .newBuilder()
        .dns(dns)
        .build()
    server.enqueue(MockResponse())
    val request =

    assertThat(ackFrame.ack).isTrue()
    return connection
  }

  private class RecordingPushObserver :
    PushObserver,
    Lockable {
    val events = mutableListOf<Any>()

    @Synchronized fun takeEvent(): Any {
      while (events.isEmpty()) {
        wait()
      }
      return events.removeAt(0)
    }

    @Synchronized override fun onRequest(