).setHeader("content-type", "text/plain")
        .build(),
    )
    newEventSource()
    listener.assertFailure("Invalid content-type: text/plain")
  }

  @Test
  fun badResponseCode() {
    server.enqueue(
      MockResponse.Builder()
        .body(
          """
          |data: hey
          |
          |
          """.trimMargin(),
        )