# Testing WebSockets

You can use the same `TestClient` to test WebSockets.

For this, you use the `TestClient` in a `with` statement, connecting to the WebSocket:

```Python hl_lines="27-31"
{!../../../docs_src/app_testing/tutorial002.py!}
```

!!! note

例如，如果你需要压榨性能，你可以安装并使用 <a href="https://github.com/ijl/orjson" class="external-link" target="_blank">`orjson`</a> 并将响应设置为 `ORJSONResponse`。

导入你想要使用的 `Response` 类（子类）然后在 *路径操作装饰器* 中声明它。

```Python hl_lines="2 7"
{!../../../docs_src/custom_response/tutorial001b.py!}
```

!!! info "提示"
    参数 `response_class` 也会用来定义响应的「媒体类型」。

    在这个例子中，HTTP 头的 `Content-Type` 会被设置成 `application/json`。

    并且在 OpenAPI 文档中也会这样记录。

	_ = x[rebalStarted-1]
	_ = x[rebalCompleted-2]
	_ = x[rebalStopped-3]
	_ = x[rebalFailed-4]
}

const _rebalStatus_name = "NoneStartedCompletedStoppedFailed"

var _rebalStatus_index = [...]uint8{0, 4, 11, 20, 27, 33}

func (i rebalStatus) String() string {
	if i >= rebalStatus(len(_rebalStatus_index)-1) {
		return "rebalStatus(" + strconv.FormatInt(int64(i), 10) + ")"
	}

=== "Python 3.10+"

    ```Python hl_lines="19-22  26-27"
    {!> ../../../docs_src/security/tutorial002_an_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="19-22  26-27"
    {!> ../../../docs_src/security/tutorial002_an_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="20-23  27-28"

    }
    for (int i = 0; i < 17; i++) {
      counter.recordLoadException(i);
    }
    for (int i = 0; i < 23; i++) {
      counter.recordMisses(1);
    }
    for (int i = 0; i < 27; i++) {
      counter.recordEviction();
    }
    CacheStats stats = counter.snapshot();
    int requestCount = 11 + 23;
    assertEquals(requestCount, stats.requestCount());
    assertEquals(11, stats.hitCount());

META-INF/maven/org.apache.maven.its/a/pom.xml 4.0.0 org.apache.maven.its a 0.1 jar Maven Integration Test :: Dummy Artifact maven-core-it file:///${basedir}/repo META-INF/maven/org.apache.maven.its/a/pom.properties #Generated by Maven #Sat Oct 24 00:27:56 CEST 2009 version=0.1 groupId=org.apache.maven.its artifactId=a...

* 等等。

=== "Python 3.10+"

    ```Python hl_lines="17  22  24-27"
    {!> ../../../docs_src/response_model/tutorial001_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="17  22  24-27"
    {!> ../../../docs_src/response_model/tutorial001_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="17  22  24-27"
    {!> ../../../docs_src/response_model/tutorial001.py!}
    ```

!!! note

# WebSockets testen

Sie können den schon bekannten `TestClient` zum Testen von WebSockets verwenden.

Dazu verwenden Sie den `TestClient` in einer `with`-Anweisung, eine Verbindung zum WebSocket herstellend:

```Python hl_lines="27-31"
{!../../../docs_src/app_testing/tutorial002.py!}
```

!!! note "Hinweis"

```Python
q: str | None = None
```

For example:

=== "Python 3.10+"

    ```Python hl_lines="27"
    {!> ../../../docs_src/body_multiple_params/tutorial004_an_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="27"
    {!> ../../../docs_src/body_multiple_params/tutorial004_an_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="28"

\pard\tx560\tx1120\tx1680\tx2240\tx2800\tx3360\tx3920\tx4480\tx5040\tx5600\tx6160\tx6720\ql\qnatural \f0\fs24 \cf0 binding, project}AllowLabelDropfalseC{398, 209.12}{550.5, 210.592}StylestrokeHeadArrow.4285709857940674Tail.5TailID79Bounds{{550.5, 203.842}, {17, 27}}ClassShapedGraphicHF{1, 0.5}{1, -0.5}{-1, 0.5}{-1, -0.5}{0.5, 1}{-0.5, 1}{0.5, -1}{-0.5, -1}ShapeRectangleTextAl{{521.5, 114.705}, {75, 14}}ClassShapedGraphicFi{\rtf1\mac\ansicpg10000\cocoartf824\cocoasubrtf410 {\fonttbl\f0\fswiss\fcharset77 Helvetica;}...