});

        mimeTypeHelper.init();

        // Null config means no override
        try (InputStream is = new ByteArrayInputStream("Hello world".getBytes(StandardCharsets.UTF_8))) {
            assertEquals("text/plain", mimeTypeHelper.getContentType(is, "test.txt"));
        }
    }

    @Test
    public void test_init_singleMapping() throws IOException {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

       *
       * Example:
       * ```
       * --> POST /greeting http/1.1
       * Host: example.com
       * Content-Type: plain/text
       * Content-Length: 3
       * --> END POST
       *
       * <-- 200 OK (22ms)
       * Content-Type: plain/text
       * Content-Length: 6
       * <-- END HTTP
       * ```
       */
      HEADERS,

      /**

      |Content-Disposition: form-data; name="files"
      |Content-Type: multipart/mixed; boundary=BbC04y
      |
      |--BbC04y
      |Content-Disposition: file; filename="file1.txt"
      |Content-Type: text/plain; charset=utf-8
      |
      |... contents of file1.txt ...
      |--BbC04y
      |Content-Disposition: file; filename="file2.gif"
      |Content-Transfer-Encoding: binary
      |Content-Type: image/gif
      |

image/x-xwindowdump            xwd              #
text/css                       css              # Cascading Style Sheet
text/html                      html htm         # HTML Document
text/plain                     txt ini log in cfg m4 sh     # Plain Text File
text/richtext                  rtx              # Rich Text File
text/tab-separated-values      tsv              #
text/x-setext                  etx              #

        .body(
          """
          |data: hey
          |
          |
          """.trimMargin(),
        ).setHeader("content-type", "text/plain")
        .build(),
    )
    newEventSource()
    listener.assertFailure("Invalid content-type: text/plain")
  }

  @Test
  fun badResponseCode() {
    server.enqueue(
      MockResponse
        .Builder()
        .body(
          """

    assertFailsWith<IllegalArgumentException> {
      Request.Builder().method("GET", "abc".toRequestBody("text/plain".toMediaType()))
    }
  }

  @Test
  fun head() {
    server.enqueue(
      MockResponse(
        headers = headersOf("Content-Type", "text/plain"),
      ),
    )
    val request =
      Request
        .Builder()
        .url(server.url("/"))
        .head()

      return new MockResponse()
          .setStatus("HTTP/1.1 404")
          .addHeader("content-type: text/plain; charset=utf-8")
          .setBody("NOT FOUND: " + path);
    } catch (IOException e) {
      return new MockResponse()
          .setStatus("HTTP/1.1 500")
          .addHeader("content-type: text/plain; charset=utf-8")
          .setBody("SERVER ERROR: " + e);
    }
  }

    stream: Http2Stream,
    path: String,
  ) {
    val responseHeaders =
      listOf(
        Header(":status", "404"),
        Header(":version", "HTTP/1.1"),
        Header("content-type", "text/plain"),
      )
    stream.writeHeaders(
      responseHeaders = responseHeaders,
      outFinished = false,
      flushHeaders = false,
    )
    val out = stream.sink.buffer()

@Tag("Slowish")
class MultipartReaderTest {
  @Test fun `parse multipart`() {
    val multipart =
      """
      |--simple boundary
      |Content-Type: text/plain; charset=utf-8
      |Content-ID: abc
      |
      |abcd
      |efgh
      |--simple boundary
      |Content-Type: text/plain; charset=utf-8
      |Content-ID: ijk
      |
      |ijkl
      |mnop
      |
      |--simple boundary--
      """.trimMargin()

/** A utility method to perform unchecked casts to suppress errors produced by nullness analyses. */
@GwtCompatible
final class NullnessCasts {
  /**
   * Accepts a {@code @Nullable T} and returns a plain {@code T}, without performing any check that
   * that conversion is safe.
   *
   * <p>This method is intended to help with usages of type parameters that have {@linkplain