* 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.
 *
 * Other exception types cancel the current call:
 *

    // non-breaking space
    assertThat(parse("http://h/\u00a0").encodedPath).isEqualTo("/%C2%A0")
    // ogham space mark
    assertThat(parse("http://h/\u1680").encodedPath).isEqualTo("/%E1%9A%80")
    // mongolian vowel separator
    assertThat(parse("http://h/\u180e").encodedPath).isEqualTo("/%E1%A0%8E")
    // en quad
    assertThat(parse("http://h/\u2000").encodedPath).isEqualTo("/%E2%80%80")
    // em quad

 * it easy to get sample values to use in such tests.
 *
 * This class is pretty fast and loose with default values: it attempts to provide values that are
 * well-formed, but doesn't guarantee values are internally consistent. Callers must take care to
 * configure the factory when sample values impact the correctness of the test.
 */
class TestValueFactory : Closeable {

     * were added by default.
     */
    fun clearHeaders() =
      apply {
        headers = Headers.Builder()
      }

    /**
     * Adds [header] as an HTTP header. For well-formed HTTP [header] should contain a name followed
     * by a colon and a value.
     */
    fun addHeader(header: String) =
      apply {
        headers.add(header)
      }

    /**

thousands of people who have already contributed to our projects — and we want to ensure our community
continues to be truly open for everyone.

This code of conduct outlines our expectations for participants, as well as steps to reporting
unacceptable behavior. We are committed to providing a welcoming and inspiring community for all and
expect our code of conduct to be honored.

Square’s open source community strives to:

        directory = File("./target/TestDohMain.cache.${System.currentTimeMillis()}"),
        maxSize = 10L * 1024 * 1024,
      )
    println("Bad targets\n***********\n")
    val url = "https://dns.cloudflare.com/.not-so-well-known/run-dmc-query".toHttpUrl()
    val badProviders =
      listOf(
        DnsOverHttps.Builder()
          .client(bootstrapClient)
          .url(url)
          .post(true)
          .build(),
      )

     *
     * @throws IllegalArgumentException If this is not a well-formed HTTP or HTTPS URL.
     */
    @JvmStatic
    @JvmName("get")
    fun String.toHttpUrl(): HttpUrl = Builder().parse(null, this).build()

    /**
     * Returns a new `HttpUrl` representing `url` if it is a well-formed HTTP or HTTPS URL, or null
     * if it isn't.
     */
    @JvmStatic

    when the URL is malformed instead of returning null. Use this to avoid checking for null in
    situations where the input is known to be well-formed. We've also added `MediaType.get(String)`
    which is an exception-throwing alternative to `MediaType.parse(String)`.
 *  New: The `EventListener` API previewed in OkHttp 3.9 has graduated to a stable API. Use this

 *    certificate is not included in this chain.
 *  * The client's handshake certificates must include a set of trusted root certificates. They will
 *    be used to authenticate the server's certificate chain. Typically this is a set of well-known
 *    root certificates that is distributed with the HTTP client or its platform. It may be
 *    augmented by certificates private to an organization or service.
 *
 * ### Client Authentication
 *

   * designed for this nonstandard interaction will use it. As of 2019-01, the only widely-used
   * implementation of this pattern is [gRPC][grpc].
   *
   * Because the encoding of interleaved data is not well-defined for HTTP/1, duplex request
   * bodies may only be used with HTTP/2. Calls to HTTP/1 servers will fail before the HTTP request
   * is transmitted. If you cannot ensure that your client and server both support HTTP/2, do not