* on what responses can be stored, and which requests can be satisfied by those stored responses.
 *
 * See [RFC 7234, 5.2](https://tools.ietf.org/html/rfc7234#section-5.2).
 */
class CacheControl internal constructor(
  /**
   * In a response, this field's name "no-cache" is misleading. It doesn't prevent us from caching
   * the response; it only means we have to validate the response with the origin server before

    /**
     * Sets this request's `Cache-Control` header, replacing any cache control headers already
     * present. If [cacheControl] doesn't define any directives, this clears this request's
     * cache-control headers.
     */
    open fun cacheControl(cacheControl: CacheControl): Builder {
      val value = cacheControl.toString()
      return when {
        value.isEmpty() -> removeHeader("Cache-Control")

  }

  @Test @Disabled
  fun cacheControl() {
    val cacheControl: CacheControl = CacheControl.Builder().build()
    val noCache: Boolean = cacheControl.noCache()
    val noStore: Boolean = cacheControl.noStore()
    val maxAgeSeconds: Int = cacheControl.maxAgeSeconds()
    val sMaxAgeSeconds: Int = cacheControl.sMaxAgeSeconds()
    val mustRevalidate: Boolean = cacheControl.mustRevalidate()

   * response contains no `Cache-Control` header.
   */
  @get:JvmName("cacheControl")
  val cacheControl: CacheControl
    get() {
      var result = lazyCacheControl
      if (result == null) {
        result = CacheControl.parse(headers)
        lazyCacheControl = result
      }
      return result
    }

  @JvmName("-deprecated_cacheControl")

  }

  @Test
  fun cacheControl() {
    val request =
      Request
        .Builder()
        .cacheControl(CacheControl.Builder().noCache().build())
        .url("https://square.com")
        .build()
    assertThat(request.headers("Cache-Control")).containsExactly("no-cache")
    assertThat(request.cacheControl.noCache).isTrue()
  }

  @Test

 * Request request = new Request.Builder()
 *     .cacheControl(new CacheControl.Builder()
 *         .maxStale(365, TimeUnit.DAYS)
 *         .build())
 *     .url("http://publicobject.com/helloworld.txt")
 *     .build();
 * ```
 *
 * The [CacheControl] class can configure request caching directives and parse response caching
 * directives. It even offers convenient constants [CacheControl.FORCE_NETWORK] and

  }

  @Test
  fun cacheControl() {
    val request =
      Request
        .Builder()
        .cacheControl(CacheControl.Builder().noCache().build())
        .url("https://square.com")
        .build()
    assertThat(request.headers("Cache-Control")).containsExactly("no-cache")
    assertThat(request.cacheControl.noCache).isTrue()
  }

  @Test

   readTimeoutMillis, retryOnConnectionFailure, socketFactory, sslSocketFactory, writeTimeoutMillis
 * **PushPromise**: headers, method, path, response
 * **Request**: body, cacheControl, headers, method, url
 * **Response**: body, cacheControl, cacheResponse, code, handshake, headers, message,
   networkResponse, priorResponse, protocol, receivedResponseAtMillis, request, sentRequestAtMillis
 * **Route**: address, proxy, socketAddress

          // s-maxage is not checked because OkHttp is a private cache that should ignore s-maxage.
          if (response.header("Expires") == null &&
            response.cacheControl.maxAgeSeconds == -1 &&
            !response.cacheControl.isPublic &&
            !response.cacheControl.isPrivate
          ) {
            return false
          }
        }

        else -> {
          // All other codes cannot be cached.

	Connection         = "Connection"
	AcceptRanges       = "Accept-Ranges"
	AmzBucketRegion    = "X-Amz-Bucket-Region"
	ServerInfo         = "Server"
	RetryAfter         = "Retry-After"
	Location           = "Location"
	CacheControl       = "Cache-Control"
	ContentDisposition = "Content-Disposition"
	Authorization      = "Authorization"
	Action             = "Action"
	Range              = "Range"
)

// Non standard S3 HTTP response constants