assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("")), "");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("bc")), "bdc");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("a")), "abdc");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("acdb")), "abdc");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("db")), "db");
  }

  @Test

    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("")), "");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("bc")), "bdc");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("a")), "abdc");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("acdb")), "abdc");
    assertEqualCharNodes(traverser.depthFirstPreOrder(charactersOf("db")), "db");
  }

  @Test

    val multipart =
      """
      |--simple boundary
      |
      |abcd
      |--simple boundary
      |
      |efgh
      |--simple boundary--
      """.trimMargin()
        .replace("\n", "\r\n")
        .replace(Regex("(?m)abcd\r\n"), "abcd\n")

    val parts =
      MultipartReader(
        boundary = "simple boundary",

  }

  @Test fun testParameter() {
    val mediaType = parse("multipart/mixed; boundary=\"abcd\"")
    assertEquals("abcd", mediaType.parameter("boundary"))
    assertEquals("abcd", mediaType.parameter("BOUNDARY"))
  }

  @Test fun testMultipleParameters() {
    val mediaType = parse("Message/Partial; number=2; total=3; id=\"oc=abc@example.com\"")
    assertEquals("2", mediaType.parameter("number"))

    assertThat(peekedBody.string()).isEqualTo("abc")
    assertThat(response.body.string()).isEqualTo("abcdef")
  }

  @Test fun peekLongerThanResponse() {
    val response = newResponse(responseBody("abc"))
    val peekedBody = response.peekBody(6)
    assertThat(peekedBody.string()).isEqualTo("abc")
    assertThat(response.body.string()).isEqualTo("abc")
  }

  @Test fun eachPeakIsIndependent() {

  }

  @Test
  fun postBodyRetransmittedAfterAuthorizationFail() {
    postBodyRetransmittedAfterAuthorizationFail("abc")
  }

  @Test
  fun postBodyRetransmittedAfterAuthorizationFail_HTTP_2() {
    platform.assumeHttp2Support()
    enableProtocol(Protocol.HTTP_2)
    postBodyRetransmittedAfterAuthorizationFail("abc")
  }

      MockResponse
        .Builder()
        .body("abc")
        .build(),
    )
    val call =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    val response = call.execute()
    assertThat(response.code).isEqualTo(200)
    assertThat(response.body.string()).isEqualTo("abc")
    response.body.close()

      MockResponse
        .Builder()
        .body("ABC")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .body("ABC")
        .build(),
    )
    val request1 = Request.Builder().url(server.url("/")).build()
    val response1 = client.newCall(request1).execute()
    assertThat(response1.body.string()).isEqualTo("ABC")

    }
    assertEquals(expected, builder.toString());
  }

  static final CharSource BROKEN_READ_SOURCE = new TestCharSource("ABC", READ_THROWS);
  static final CharSource BROKEN_CLOSE_SOURCE = new TestCharSource("ABC", CLOSE_THROWS);
  static final CharSource BROKEN_OPEN_SOURCE = new TestCharSource("ABC", OPEN_THROWS);
  static final CharSink BROKEN_WRITE_SINK = new TestCharSink(WRITE_THROWS);

    }
    assertEquals(expected, builder.toString());
  }

  static final CharSource BROKEN_READ_SOURCE = new TestCharSource("ABC", READ_THROWS);
  static final CharSource BROKEN_CLOSE_SOURCE = new TestCharSource("ABC", CLOSE_THROWS);
  static final CharSource BROKEN_OPEN_SOURCE = new TestCharSource("ABC", OPEN_THROWS);
  static final CharSink BROKEN_WRITE_SINK = new TestCharSink(WRITE_THROWS);