MediaType mediaType = addKnownType(new MediaType(type, subtype, UTF_8_CONSTANT_PARAMETERS));
    mediaType.parsedCharset = Optional.of(UTF_8);
    return mediaType;
  }

  private static MediaType addKnownType(MediaType mediaType) {
    KNOWN_TYPES.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant

    MediaType mediaType = addKnownType(new MediaType(type, subtype, UTF_8_CONSTANT_PARAMETERS));
    mediaType.parsedCharset = Optional.of(UTF_8);
    return mediaType;
  }

  private static MediaType addKnownType(MediaType mediaType) {
    KNOWN_TYPES.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant

    MediaType mediaType = MediaType.parse("text/plain");
    try {
      mediaType.withParameter("…", "a");
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testWithParameter_nonAsciiParameterValue() {
    MediaType mediaType = MediaType.parse("text/plain");
    try {
      mediaType.withParameter("a", "…");
      fail();

    MediaType mediaType = MediaType.parse("text/plain");
    try {
      mediaType.withParameter("…", "a");
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testWithParameter_nonAsciiParameterValue() {
    MediaType mediaType = MediaType.parse("text/plain");
    try {
      mediaType.withParameter("a", "…");
      fail();

	type test struct {
		name string

		mediaType  string
		out        []byte
		outErrs    []error
		req        *http.Request
		statusCode int
		object     runtime.Object

		wantCode    int
		wantHeaders http.Header
	}
	newTest := func() test {
		return test{
			name:      "compress on gzip",
			out:       largePayload,
			mediaType: "application/json",
			req: &http.Request{

  companion object {
    @JvmOverloads
    fun body(
      hex: String,
      charset: String? = null,
    ): ResponseBody {
      val mediaType = if (charset == null) null else "any/thing; charset=$charset".toMediaType()
      return hex.decodeHex().toResponseBody(mediaType)
    }

    fun exhaust(reader: Reader): String {
      val builder = StringBuilder()
      val buf = CharArray(10)
      var read: Int

	if framer == nil {
		return nil, fmt.Errorf("no framer defined for %q available for embedded encoding", serializer.MediaType)
	}
	// TODO: next step, get back mediaTypeOptions from negotiate and return the exact value here
	mediaType := serializer.MediaType
	if mediaType != runtime.ContentTypeJSON {
		mediaType += ";stream=watch"
	}

	ctx := req.Context()

	// locate the appropriate embedded encoder based on the transform

    @JvmStatic
    @JvmName("create")
    fun ByteArray.toResponseBody(contentType: MediaType? = null): ResponseBody = commonToResponseBody(contentType)

    /** Returns a new response body that transmits this byte string. */
    @JvmStatic
    @JvmName("create")
    fun ByteString.toResponseBody(contentType: MediaType? = null): ResponseBody = commonToResponseBody(contentType)

    val keyPair: KeyPair = heldCertificate.keyPair()
  }

  @Test @Disabled
  fun mediaType() {
    val mediaType: MediaType = MediaType.get("")
    val type: String = mediaType.type()
    val subtype: String = mediaType.subtype()
    val parse: MediaType? = MediaType.parse("")
  }

  @Test @Disabled
  fun mockResponse() {
    val mockResponse = MockResponse()

  }

  @Test
  fun mediaType() {
    val mediaType: MediaType = "".toMediaType()
    val defaultCharset: Charset? = mediaType.charset()
    val charset: Charset? = mediaType.charset(Charsets.UTF_8)
    val type: String = mediaType.type
    val subtype: String = mediaType.subtype
    val parse: MediaType? = "".toMediaTypeOrNull()
  }

  @Test
  fun mockResponse() {