assert state["finally"] is False
    response = client.put("/invalid-user/rick", json="Morty")
    assert response.status_code == 400, response.text
    assert response.json() == {"detail": "Invalid user"}
    assert state["except"] is True
    assert state["finally"] is True
    assert fake_database["rick"] == "Rick Sanchez"


def test_dependency_no_exception():
    assert state["except"] is False

client = TestClient(app)


def test_get():
    response = client.get("/users/rick")
    assert response.status_code == 200, response.text
    assert response.json() == {"user_id": "rick", "path": "/users/{user_id}"}


def test_invalid_method_doesnt_match():
    response = client.post("/users/rick")
    assert response.status_code == 405, response.text


def test_invalid_path_doesnt_match():

    assert response.status_code == 400, response.text
    assert response.json() == {"detail": "Owner error: Rick"}


def test_get_item():
    response = client.get("/items/portal-gun")
    assert response.status_code == 200, response.text

    assert response.status_code == 400, response.text
    assert response.json() == {"detail": "Owner error: Rick"}


@needs_py39
def test_get_item(client: TestClient):
    response = client.get("/items/portal-gun")
    assert response.status_code == 200, response.text

    assert response.status_code == 400, response.text
    assert response.json() == {"detail": "Owner error: Rick"}


def test_get_item():
    response = client.get("/items/portal-gun")
    assert response.status_code == 200, response.text

data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:
        raise HTTPException(status_code=400, detail=f"Owner error: {e}")


@app.get("/items/{item_id}")

data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:
        raise HTTPException(status_code=400, detail=f"Owner error: {e}")


@app.get("/items/{item_id}")

data = {
    "plumbus": {"description": "Freshly pickled plumbus", "owner": "Morty"},
    "portal-gun": {"description": "Gun to create portals", "owner": "Rick"},
}


class OwnerError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except OwnerError as e:
        raise HTTPException(status_code=400, detail=f"Owner error: {e}")


@app.get("/items/{item_id}")

!!! info
    Keep in mind that dataclasses can't do everything Pydantic models can do.

    So, you might still need to use Pydantic models.

    But if you have a bunch of dataclasses laying around, this is a nice trick to use them to power a web API using FastAPI. 🤓

## Dataclasses in `response_model`

You can also use `dataclasses` in the `response_model` parameter:

```Python hl_lines="1  7-13  19"

val startScripts = tasks.register<GradleStartScriptGenerator>("startScripts") {
    startScriptsDir = layout.buildDirectory.dir("startScripts")
    launcherJar.from(tasks.jar)
    agentJars.from(agentsClasspath)
    // The trick below is to use the templates from the current code instead of the wrapper. It does not cover the case where the generation logic is updated though.