Create a `TestClient` by passing your **FastAPI** application to it.

Create functions with a name that starts with `test_` (this is standard `pytest` conventions).

Use the `TestClient` object the same way as you do with `httpx`.

Write simple `assert` statements with the standard Python expressions that you need to check (again, standard `pytest`).

```Python hl_lines="2  12  15-18"
{!../../docs_src/app_testing/tutorial001.py!}
```

/// tip

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

/// tip | "Astuce"

En ajoutant `standard`, Uvicorn va installer et utiliser quelques dépendances supplémentaires recommandées.

option go_package = "k8s.io/api/scheduling/v1";

// PriorityClass defines mapping from a priority class name to the priority
// integer value. The value can be any valid integer.
message PriorityClass {
  // Standard object's metadata.
  // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

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      "number_of_replicas": 0,
      "auto_expand_replicas": "0-1"
    },
    "analysis": {
      "analyzer": {
        "standard_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "cjk_width",
            "asciifolding",
            "lowercase",
            "stop",
            "stemmer"
          ]
        }
      }
    }
  }

      "number_of_replicas": 0,
      "auto_expand_replicas": "0-1"
    },
    "analysis": {
      "analyzer": {
        "standard_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "cjk_width",
            "asciifolding",
            "lowercase",
            "stop",
            "stemmer"
          ]
        }
      }
    }
  }

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## Authentication

The agent supports two forms of authentication with the CA/discovery servers: mTLS and JWT. Varying deployment
topologies mix and match these two.

For a standard Kubernetes deployment, both CA and discovery will use JWT authentication, with a token automatically

  "features": {
      "ghcr.io/devcontainers/features/java:1": {
          "version": "17"
      }
  },
  "customizations": {
      "vscode": {
          "settings": {
              "java.server.launchMode": "Standard"
          },
          "extensions": [
              "vscjava.vscode-java-pack",
              "vscjava.vscode-gradle"
          ]
      }
  }

                    return new StandardImplForwardingSet<>(Sets.newLinkedHashSet(asList(elements)));
                  }
                })
            .named("ForwardingSet[LinkedHashSet] with standard implementations")
            .withFeatures(
                CollectionSize.ANY,
                CollectionFeature.ALLOWS_NULL_VALUES,
                CollectionFeature.GENERAL_PURPOSE)
            .createTestSuite());