assertThat(server.takeRequest().sequenceNumber).isEqualTo(2)
  }

  @Test
  fun serverClosesSocket() {
    testServerClosesOutput(DisconnectAtEnd)
  }

  @Test
  fun serverShutdownInput() {
    testServerClosesOutput(ShutdownInputAtEnd)
  }

  @Test
  fun serverShutdownOutput() {
    testServerClosesOutput(ShutdownOutputAtEnd)
  }

  @Test
  fun invalidHost() {