/**
     * Returns a new request body that transmits this string. If [contentType] is non-null and lacks
     * a charset, this will use UTF-8.
     */
    @JvmStatic
    @JvmName("create")
    fun String.toRequestBody(contentType: MediaType? = null): RequestBody {
      val (charset, finalContentType) = contentType.chooseCharset()
      val bytes = toByteArray(charset)

		statusCode   int
		body         string
		contentType  string
		expectStatus int
	}{
		{
			name:         "Success 206 Partial Content",
			statusCode:   206,
			body:         "partial-object-data",
			contentType:  "text/plain",
			expectStatus: 206,
		},
		{
			name:         "Success 200 OK",
			statusCode:   200,
			body:         "full-object-data",
			contentType:  "application/json",
			expectStatus: 200,
		},

        this.encoding = encoding;
    }

    /**
     * Sets the content type.
     *
     * @param contentType the content type
     */
    public void setContentType(final String contentType) {
        this.contentType = contentType;
    }

	if err := d.DecodeElement(&parsedArgs, &start); err != nil {
		return err
	}

	parsedArgs.ContentType = strings.ToLower(parsedArgs.ContentType)
	switch parsedArgs.ContentType {
	case document, lines:
	default:
		return errInvalidJSONType(fmt.Errorf("invalid ContentType '%v'", parsedArgs.ContentType))
	}

	*args = ReaderArgs(parsedArgs)
	args.unmarshaled = true
	return nil
}

  fun correctContentType() {
    val body = "Body"
    val requestBody = body.toRequestBody(MediaType("text/plain", "text", "plain", arrayOf()))

    val contentType = requestBody.contentType()!!

    assertThat(contentType.mediaType).isEqualTo("text/plain; charset=utf-8")
    assertThat(contentType.parameter("charset")).isEqualTo("utf-8")
  }

			}
			if testCase.result.ContentType != result.ContentType {
				t.Errorf("Test %d: %s: Expected Content Type of the object to be %v, but instead found it to be %v", i+1, instanceType, testCase.result.ContentType, result.ContentType)
			}
			if testCase.result.IsDir != result.IsDir {

    val userRequest = chain.request()
    val requestBuilder = userRequest.newBuilder()

    val body = userRequest.body
    if (body != null) {
      val contentType = body.contentType()
      if (contentType != null) {
        requestBuilder.header("Content-Type", contentType.toString())
      }

      val contentLength = body.contentLength()
      if (contentLength != -1L) {

      } else {
        listener.onClosed(this)
      }
    }
  }

  private fun ResponseBody.isEventStream(): Boolean {
    val contentType = contentType() ?: return false
    return contentType.type == "text" && contentType.subtype == "event-stream"
  }

  override fun onFailure(
    call: Call,
    e: IOException,
  ) {
    listener.onFailure(this, e, null)
  }

     * @param text The text content to write.
     * @param contentType The content type for the response.
     * @param encoding The character encoding for the response.
     */
    protected void write(final String text, final String contentType, final String encoding) {
        final StringBuilder buf = new StringBuilder(50);
        if (contentType == null) {
            buf.append("text/plain");
        } else {

    val body = request.body
    assertThat(request.method).isEqualTo("POST")
    assertThat(request.url.toString()).isEqualTo("http://example.com/")
    assertThat(body!!.contentType().toString()).isEqualTo(
      "application/x-www-form-urlencoded; charset=utf-8",
    )
    assertThat(bodyAsString(body)).isEqualTo("foo")
  }

  @Test
  fun dataPut() {