}

  @Test fun durationDefaults() {
    val client = clientTestRule.newClient()
    assertThat(client.callTimeoutMillis).isEqualTo(0)
    assertThat(client.connectTimeoutMillis).isEqualTo(10000)
    assertThat(client.readTimeoutMillis).isEqualTo(10000)
    assertThat(client.writeTimeoutMillis).isEqualTo(10000)
    assertThat(client.pingIntervalMillis).isEqualTo(0)
    assertThat(client.webSocketCloseTimeout).isEqualTo(60_000)
  }

    try {
      client1.newCall(request).execute().use { response ->
        println("Response 1 succeeded: $response")
      }
    } catch (e: IOException) {
      println("Response 1 failed: $e")
    }

    // Copy to customize OkHttp for this request.
    val client2 =
      client
        .newBuilder()
        .readTimeout(3000, TimeUnit.MILLISECONDS)
        .build()
    try {

    try (Response response = client1.newCall(request).execute()) {
      System.out.println("Response 1 succeeded: " + response);
    } catch (IOException e) {
      System.out.println("Response 1 failed: " + e);
    }

    // Copy to customize OkHttp for this request.
    OkHttpClient client2 = client.newBuilder()
        .readTimeout(3000, TimeUnit.MILLISECONDS)
        .build();
    try (Response response = client2.newCall(request).execute()) {

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## Cliente WebSockets { #websockets-client }

### Em produção { #in-production }

Em seu sistema de produção, você provavelmente tem um frontend criado com um framework moderno como React, Vue.js ou Angular.

from fastapi.testclient import TestClient

swagger_ui_init_oauth = {"clientId": "the-foo-clients", "appName": "The Predendapp"}

app = FastAPI(swagger_ui_init_oauth=swagger_ui_init_oauth)


@app.get("/items/")
async def read_items():
    return {"id": "foo"}


client = TestClient(app)


def test_swagger_ui():
    response = client.get("/docs")
    assert response.status_code == 200, response.text

 * https://hc.apache.org/httpcomponents-client-5.0.x/httpclient5/examples/AsyncClientTlsAlpn.java
 *
 * Mainly intended to verify behaviour of popular clients across Android versions, similar
 * to observing Firefox or Chrome browser behaviour.
 */
class ApacheHttpClientHttp2Test {
  @Test
  fun testHttp2() {
    val client = HttpAsyncClients.createHttp2Default()

    client.use { client ->
      client.start()

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## Cliente WebSockets { #websockets-client }

### En producción { #in-production }

En tu sistema de producción, probablemente tengas un frontend creado con un framework moderno como React, Vue.js o Angular.

 * authentication is optional.
 *
 * To perform client authentication:
 *
 *  * The client's handshake certificates must have a [held certificate][HeldCertificate] (a
 *    certificate and its private key). The client must also have a (possibly-empty) chain of
 *    intermediate certificates to establish trust from a root certificate to the client's

import mockwebserver3.junit5.StartStop
import org.apache.hc.client5.http.classic.methods.HttpGet
import org.apache.hc.client5.http.impl.classic.HttpClients
import org.apache.hc.core5.http.io.entity.EntityUtils
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Test

/**
 * Apache HttpClient 5.x.
 *
 * https://hc.apache.org/httpcomponents-client-5.0.x/index.html
 *

          call: Call,
          e: IOException,
        ) {
          fail("")
        }
      },
    )
    val client2 =
      client
        .newBuilder()
        .eventListenerFactory(clientTestRule.wrap(request2Listener))
        .build()
    val call2 = client2.newCall(request)
    val response = call2.execute()
    assert200Http2Response(response, "san.com")
  }