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

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

  @Test fun `other characters after boundary`() {
    val multipart =
      """
      |--simple boundary hi
      """.trimMargin()
        .replace(Regex("(?m)simple boundary$"), "simple boundary ")
        .replace("\n", "\r\n")

      if (prefix.exhausted()) {
        break
      }
      val codePoint = prefix.readUtf8CodePoint()
      if (Character.isISOControl(codePoint) && !Character.isWhitespace(codePoint)) {
        return false
      }
    }
    return true
  } catch (_: EOFException) {
    return false // Truncated UTF-8 sequence.
  }

    executeSynchronously(Request(server.url("/")))
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(0)
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(1)
  }

  /** We forbid non-ASCII characters in outgoing request headers, but accept UTF-8.  */
  @Test
  fun responseHeaderParsingIsLenient() {
    val headersBuilder = Headers.Builder()
    headersBuilder.add("Content-Length", "0")

HSPLokio/Path$Companion;->get(Ljava/lang/String;Z)Lokio/Path;
HSPLokio/Path;-><clinit>()V
HSPLokio/Path;-><init>(Lokio/ByteString;)V
HSPLokio/Path;->resolve(Ljava/lang/String;)Lokio/Path;
HSPLokio/Path;->volumeLetter()Ljava/lang/Character;
HSPLokio/RealBufferedSink;-><init>(Lokio/Sink;)V
HSPLokio/RealBufferedSink;->close()V
HSPLokio/RealBufferedSink;->emitCompleteSegments()Lokio/BufferedSink;
HSPLokio/RealBufferedSink;->flush()V

            partCount++
            break@afterBoundaryLoop
          }

          1 -> {
            // "--": No more parts.
            if (whitespace) throw ProtocolException("unexpected characters after boundary")
            if (partCount == 0) throw ProtocolException("expected at least 1 part")
            noMoreParts = true
            return null
          }

          2, 3 -> {

        },
    )

  /**
   * Permits alphanumerics, spaces, and these:
   *
   * ```
   *   ' () + , - . / : = ?
   * ```
   *
   * TODO(jwilson): constrain to printable string characters.
   */
  val PRINTABLE_STRING =
    BasicDerAdapter(
      name = "PRINTABLE STRING",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 19L,
      codec =

    assertThat(formEncode(255)).isEqualTo("%C3%BF")
  }

  @Throws(IOException::class)
  private fun formEncode(codePoint: Int): String {
    // Wrap the codepoint with regular printable characters to prevent trimming.
    val body =
      FormBody.Builder()
        .add("a", String(intArrayOf('b'.code, codePoint, 'c'.code), 0, 3))
        .build()
    val buffer = Buffer()
    body.writeTo(buffer)

    buffer.writeUtf8(
      """
      |  0221
      |  0234-024F
      |  0000-001F; [CONTROL CHARACTERS]
      |  007F; DELETE
      |
      """.trimMargin(),
    )

    val rangeList = buffer.readCodePointSet()
    assertEquals(
      listOf(
        0x0221..0x0221,
        0x0234..0x024f,
        // [CONTROL CHARACTERS].
        0x0000..0x001f,
        // DELETE.
        0x007f..0x007f,
      ),

    the timeouts manually.

 *  **OkHttp now rejects request headers that contain invalid characters.** This
    includes potential security problems (newline characters) as well as simple
    non-ASCII characters (including international characters and emoji).

 *  **Call canceling is more reliable.**  We had a bug where a socket being

   E0001; LANGUAGE TAG