val response1 = client.newCall(request1).execute()
    assertThat(response1.code).isEqualTo(401)
    assertThat(response1.body.string())
      .isEqualTo("{\"error\":{\"message\":\"No auth credentials found\",\"code\":401}}")

    val request2 = request1.newBuilder().header("Authorization", "XYZ").build()
    val response2 = client.newCall(request2).execute()

            // When & Then
            assertEquals(0, response.writeBytesWireFormat(dst, 0));
            assertEquals(0, response.writeBytesWireFormat(dst, 25));
            assertEquals(0, response.writeBytesWireFormat(dst, 50));
            assertEquals(0, response.writeBytesWireFormat(dst, 75));
            assertEquals(0, response.writeBytesWireFormat(dst, 99));
        }

        @Test

     * outgoing HTTP requests.
     *
     * If unset, [no cookies][CookieJar.NO_COOKIES] will be accepted nor provided.
     */
    fun cookieJar(cookieJar: CookieJar) =
      apply {
        this.cookieJar = cookieJar
      }

    /** Sets the response cache to be used to read and write cached responses. */
    fun cache(cache: Cache?) =

  @Synchronized
  override fun onResponse(
    call: Call,
    response: Response,
  ) {
    val body = response.body.string()
    responses.add(RecordedResponse(call.request(), response, null, body, null))
    (this as Object).notifyAll()
  }

  /**
   * Returns the recorded response triggered by `request`. Throws if the response isn't
   * enqueued before the timeout.
   */
  @Synchronized

     * Sets the fields that are allowed in API responses.
     *
     * @param fields array of field names that are allowed in API responses
     */
    public void setApiResponseFields(final String[] fields) {
        apiResponseFieldSet = new HashSet<>();
        Collections.addAll(apiResponseFieldSet, fields);
    }

    /**
     * Checks if the specified field is allowed in API responses.
     *

        assertEquals("DOMAIN", result.getUserDomain());
        assertEquals("user", result.getUsername());
        // Cannot verify challenge and responses as they are not exposed in the API

        // Verify that the response is not modified for a successful authentication
        verify(mockResponse, never()).setHeader(anyString(), anyString());
        verify(mockResponse, never()).setStatus(any(int.class));

 * responses coming back in. Typically interceptors add, remove, or transform headers on the request
 * or response.
 *
 * Implementations of this interface throw [IOException] to signal connectivity failures. This
 * includes both natural exceptions such as unreachable servers, as well as synthetic exceptions
 * when responses are of an unexpected type or cannot be decoded.
 *

 * It processes the response data based on the HTTP status code and configured transformer.
 * </p>
 *
 * <p>
 * It handles successful responses by transforming the data using a {@link Transformer}
 * and storing the result. It also handles "Not Modified" responses by creating an empty
 * result and storing it. Unsuccessful responses are logged for debugging purposes.
 * </p>
 *
 * <p>

    route: Route?,
    response: Response,
  ): Request? {
    if (route == null) throw NullPointerException("route == null")
    responses += response
    routes += route
    if (!schemeMatches(response) || credential == null) return null
    val header =
      when (response.code) {
        407 -> "Proxy-Authorization"
        else -> "Authorization"
      }
    return response.request
      .newBuilder()

    /** Don't accept an unvalidated cached response. */
    fun noCache() = commonNoCache()

    /** Don't store the server's response in any cache. */
    fun noStore() = commonNoStore()

    /**
     * Only accept the response if it is in the cache. If the response isn't cached, a `504
     * Unsatisfiable Request` response will be returned.
     */
    fun onlyIfCached() = commonOnlyIfCached()