.assertHeader("B", "123", "234")
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.headers.values("A")).containsExactly("345", "456")
  }

  @Test
  fun repeatedHeaderNames_HTTP_2() {
    enableProtocol(Protocol.HTTP_2)
    repeatedHeaderNames()
  }

  @Test
  fun getWithRequestBody() {
    server.enqueue(MockResponse())
    assertFailsWith<IllegalArgumentException> {