private var client =
    clientTestRule
      .newClientBuilder()
      .cache(Cache(fileSystem, "/cache/".toPath(), Long.MAX_VALUE))
      .build()

  @Test
  fun trailersHttp1() {
    trailers(Protocol.HTTP_1_1)
  }

  @Test
  fun trailersHttp2() {
    trailers(Protocol.HTTP_2)
  }

  private fun trailers(protocol: Protocol) {
    enableProtocol(protocol)

    server.enqueue(
      MockResponse