"application/multipart; boundary=\"simple boundary\"".toMediaType(),
      )

    val parts = MultipartReader(responseBody)
    assertThat(parts.boundary).isEqualTo("simple boundary")

    val part = parts.nextPart()!!
    assertThat(part.body.readUtf8()).isEqualTo("abcd")

    assertThat(parts.nextPart()).isNull()
  }

  @Test fun `truncated multipart`() {
    val multipart =
      """

  request.url(url)

  data?.let {
    request.method(requestMethod, it.toRequestBody(mediaType()))
  }

  for (header in headers.orEmpty()) {
    val parts = header.split(':', limit = 2)
    if (!isSpecialHeader(parts[0])) {
      request.header(parts[0], parts[1])
    }
  }
  referer?.let {
    request.header("Referer", it)
  }
  request.header("User-Agent", userAgent)

  return request.build()
}

 *   while (true) {
 *     val part = multipartReader.nextPart() ?: break
 *     process(part.headers, part.body)
 *   }
 * }
 * ```
 *
 * Note that [nextPart] will skip any unprocessed data from the preceding part. If the preceding
 * part is particularly large or if the underlying source is particularly slow, the [nextPart] call
 * may be slow!
 *

          parts += part
        }

      /** Assemble the specified parts into a request body. */
      fun build(): MultipartBody {
        check(parts.isNotEmpty()) { "Multipart body must have at least one part." }
        return MultipartBody(boundary, type, parts.toImmutableList())
      }
    }

  companion object {
    /**
     * The "mixed" subtype of "multipart" is intended for use when the body parts are independent

      MultipartBody.Builder()
        .addPart(headersOf("Foo", "Bar"), "Baz".toRequestBody(null))
        .build()
    assertThat(body.parts.size).isEqualTo(1)
    val part1Buffer = Buffer()
    val part1 = body.part(0)
    part1.body.writeTo(part1Buffer)
    assertThat(part1.headers).isEqualTo(headersOf("Foo", "Bar"))
    assertThat(part1Buffer.readUtf8()).isEqualTo("Baz")
  }

  @Test
  fun nonAsciiFilename() {

        if (line.isEmpty() || line.startsWith("#")) continue

        var i = 0
        val parts = line.split(Regex(" ")).toTypedArray()

        val element = WebPlatformUrlTestData()
        element.input = unescape(parts[i++])

        val base = if (i < parts.size) parts[i++] else null
        element.base =
          when {
            base == null || base.isEmpty() -> list[list.size - 1].base

    val size: Int = multipartBody.size()
    val parts: List<MultipartBody.Part> = multipartBody.parts()
  }

  @Test @Disabled
  fun multipartBodyPart() {
    val multipartBody: MultipartBody = MultipartBody.Builder().build()
    val part: MultipartBody.Part = multipartBody.part(0)
    val headers: Headers? = part.headers()
    val body: RequestBody = part.body()
  }

  @Test @Disabled
  fun okHttpClient() {

    ```kotlin
    val response: Response = call.execute()
    val multipartReader = MultipartReader(response.body!!)

    multipartReader.use {
      while (true) {
        val part = multipartReader.nextPart() ?: break
        process(part.headers, part.body)
      }
    }
    ```

 *  New: `MediaType.parameter()` gets a parameter like `boundary` from a media type like
    `multipart/mixed; boundary="abc"`.

    }

    when {
      secondSpace != -1 && firstSpace == CLEAN.length && line.startsWith(CLEAN) -> {
        val parts =
          line.substring(secondSpace + 1)
            .split(' ')
        entry.readable = true
        entry.currentEditor = null
        entry.setLengths(parts)
      }

      secondSpace == -1 && firstSpace == DIRTY.length && line.startsWith(DIRTY) -> {

    val requestBody: RequestBody = "".toRequestBody(null)
    var part: MultipartBody.Part = MultipartBody.Part.create(null, requestBody)
    part = MultipartBody.Part.create(headersOf(), requestBody)
    part = MultipartBody.Part.create(requestBody)
    part = MultipartBody.Part.createFormData("", "")
    part = MultipartBody.Part.createFormData("", "", requestBody)
    part = MultipartBody.Part.createFormData("", null, requestBody)