*  Fix: Don't leak connections if web sockets have malformed responses or if `onOpen()` throws.
 *  Fix: Don't retry when request bodies fail due to `FileNotFoundException`.
 *  Fix: Don't crash when URLs have IPv4-mapped IPv6 addresses.
 *  Fix: Don't crash when building `HandshakeCertificates` on Android API 28.
 *  Fix: Permit multipart file names to contain non-ASCII characters.
 *  New: API to get MockWebServer's dispatcher.

 * `http://ho™ail.com`. To mitigate this, the single character (™) maps to the string (tm). There
 * is similar policy for all of the 1.1 million Unicode code points. Note that some code points such
 * as "\ud83c\udf69" are not mapped and cannot be used in a hostname.
 *
 * [Punycode](http://ietf.org/rfc/rfc3492.txt) converts a Unicode string to an ASCII string to make

  }

  @Test
  fun responseBodyFailHttp() {
    responseBodyFail(Protocol.HTTP_1_1)
  }

  private fun responseBodyFail(expectedProtocol: Protocol?) {
    // Use a 2 MiB body so the disconnect won't happen until the client has read some data.
    val responseBodySize = 2 * 1024 * 1024 // 2 MiB
    server.enqueue(
      MockResponse.Builder()
        .body(Buffer().write(ByteArray(responseBodySize)))