assertThat(ioe.message).isEqualTo("google.com")
      val cause = ioe.cause!!
      assertThat(cause).isInstanceOf<IOException>()
      assertThat(cause).hasMessage("response size exceeds limit (65536 bytes): 65537 bytes")
    }
  }

  @Test
  fun failOnBadResponse() {
    server.enqueue(dnsResponse("00"))
    try {
      dns.lookup("google.com")
      fail<Any>()
    } catch (ioe: IOException) {

  }

  companion object {
    /**
     * From the HTTP/2 specs, the default initial window size for all streams is 64 KiB. (Chrome 25
     * uses 10 MiB).
     */
    const val DEFAULT_INITIAL_WINDOW_SIZE = 65535

    /** HTTP/2: Size in bytes of the table used to decode the sender's header blocks. */
    const val HEADER_TABLE_SIZE = 1

    /** HTTP/2: The peer must not send a PUSH_PROMISE frame when this is 0. */

  @Test
  fun invalidPort() {
    val requestBuilder = Request.Builder()
    assertFailsWith<IllegalArgumentException> {
      requestBuilder.url("http://localhost:65536/")
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Invalid URL port: \"65536\"")
    }
  }

  @Test
  fun getReturns500() {
    server.enqueue(MockResponse(code = 500))
    executeSynchronously("/")
      .assertCode(500)

1F247         ; mapped                 ; 3014 52DD 3015 #5.2  TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-52DD
1F248         ; mapped                 ; 3014 6557 3015 #5.2  TORTOISE SHELL BRACKETED CJK UNIFIED IDEOGRAPH-6557
1F249..1F24F  ; disallowed                             # NA   <reserved-1F249>..<reserved-1F24F>
1F250         ; mapped                 ; 5F97          # 6.0  CIRCLED IDEOGRAPH ADVANTAGE