var client = clientTestRule.newClient()

  @StartStop
  private val server = MockWebServer()

  @BeforeEach
  fun setUp() {
    platform.assumeOpenJSSE()
  }

  @Test
  fun testTlsv13Works() {
    enableTls()

    server.enqueue(MockResponse(body = "abc"))

    val request = Request(server.url("/"))

    val response = client.newCall(request).execute()

### Client Binaries

filename | sha512 hash
-------- | -----------
[kubernetes-client-darwin-amd64.tar.gz](https://dl.k8s.io/v1.30.14/kubernetes-client-darwin-amd64.tar.gz) | 6ad7da5929458e9ed7c1e396fc862a14df67d8b7cbae336e05149af42b2e466eeec30dd0251d96ce49fe55a2a0cc854d1d93b27be9aaeb3d1b42dd916b83ae06

OkHttp includes a library for testing HTTP, HTTPS, and HTTP/2 clients.

The latest release is available on [Maven Central](https://search.maven.org/artifact/com.squareup.okhttp3/mockwebserver/5.1.0/jar).

```kotlin
testImplementation("com.squareup.okhttp3:mockwebserver3:5.1.0")
```

MockWebServer is used for firstly for internal testing, and for basic testing of apps using OkHttp client.

    client =
      OkHttpClient
        .Builder()
        .proxy(server.proxyAddress)
        .build()
    server.enqueue(MockResponse(body = "abc"))
    server.enqueue(MockResponse(body = "def"))
    server.enqueue(MockResponse(body = "ghi"))
    client = client.newBuilder().build()
    executeSynchronously("/a").assertBody("abc")
    client = client.newBuilder().build()

        body = "ABC.2",
      ),
    )
    client =
      client
        .newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),
          handshakeCertificates.trustManager,
        ).hostnameVerifier(nullHostnameVerifier)
        .build()
    val request = Request(server.url("/"))
    val response1: Response = client.newCall(request).execute()

   */
  private fun enableProtocol(protocol: Protocol) {
    enableTls()
    client =
      client
        .newBuilder()
        .protocols(listOf(protocol, Protocol.HTTP_1_1))
        .build()
    server.protocols = client.protocols
  }

  private fun enableTls() {
    client =
      client
        .newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),

    OkHttpClient client = new OkHttpClient();

    sendRequest(client, "https://google.com/robots.txt");
  }

  private void sendRequest(OkHttpClient client, String url) throws IOException {
    Request request = new Request.Builder()
            .url(url)
            .build();
    try (Response response = client.newCall(request).execute()) {

 *    cache.
 *
 * Sometimes a request will result in a conditional cache hit. If the cache contains a stale copy of
 * the response, the client will issue a conditional `GET`. The server will then send either
 * the updated response if it has changed, or a short 'not modified' response if the client's copy
 * is still valid. Such responses increment both the network count and hit count.
 *

        .build()
    var client = buildClient(clientCert, clientIntermediateCa.certificate)
    val listener = RecordingEventListener()
    client =
      client
        .newBuilder()
        .eventListener(listener)
        .build()
    val socketFactory = buildServerSslSocketFactory()
    server.useHttps(socketFactory)
    server.requireClientAuth()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

    client.connectionPool.evictAll()
    assertEquals(0, client.connectionPool.connectionCount())

    client.newCall(request).execute().use {