response = client.put(
        "/items/123",
        json={"name": "Foo", "price": 50.1},
    )
    assert response.status_code == 200
    assert response.json() == {
        "item_id": 123,
        "name": "Foo",
        "price": 50.1,
        "description": None,
        "tax": None,
    }


def test_put_with_no_data(client: TestClient):
    response = client.put("/items/123", json={})

client = TestClient(app)


def test_get_item_header():
    response = client.get("/items-header/foo")
    assert response.status_code == 200, response.text
    assert response.json() == {"item": "The Foo Wrestlers"}


def test_get_item_not_found_header():
    response = client.get("/items-header/bar")
    assert response.status_code == 404, response.text

def test_query_params_str_validations_no_query(client: TestClient):
    response = client.get("/items/")
    assert response.status_code == 200
    assert response.json() == {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}


def test_query_params_str_validations_item_query_fixedquery(client: TestClient):
    response = client.get("/items/", params={"item-query": "fixedquery"})
    assert response.status_code == 200
    assert response.json() == {

client = TestClient(app)


def test_foo_needy_very():
    response = client.get("/items/foo?needy=very")
    assert response.status_code == 200
    assert response.json() == {"item_id": "foo", "needy": "very"}


def test_foo_no_needy():
    response = client.get("/items/foo")
    assert response.status_code == 422
    assert response.json() == {
        "detail": [
            {

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: set[str] = set()


@app.post("/items/", response_model=Item, summary="Create an item")
async def create_item(item: Item):
    """
    Create an item with all the information:

    - **name**: each item must have a name

### Перевірте

Відкрийте браузер та введіть адресу <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.

Ви побачите у відповідь подібний JSON:

```JSON
{"item_id": 5, "q": "somequery"}
```

Ви вже створили API, який:

* Отримує HTTP запити за _шляхами_ `/` та `/items/{item_id}`.

def test_get_valid_headers(client: TestClient):
    response = client.get(
        "/items/",
        headers={
            "X-Token": "fake-super-secret-token",
            "X-Key": "fake-super-secret-key",
        },
    )
    assert response.status_code == 200, response.text
    assert response.json() == [{"item": "Foo"}, {"item": "Bar"}]


def test_openapi_schema(client: TestClient):

У цьому випадку, якщо Ви звернетесь до:


```
http://127.0.0.1:8000/items/foo?short=1
```

або

```
http://127.0.0.1:8000/items/foo?short=True
```

або

```
http://127.0.0.1:8000/items/foo?short=true
```

або

```
http://127.0.0.1:8000/items/foo?short=on
```

або

```
http://127.0.0.1:8000/items/foo?short=yes
```

    return id


@app.get("/items/")
async def read_items(
    id: Annotated[str | None, AfterValidator(check_valid_id)] = None,
):
    if id:
        item = data.get(id)
    else:
        id, item = random.choice(list(data.items()))

本例中，访问：

```
http://127.0.0.1:8000/items/foo?short=1
```

或

```
http://127.0.0.1:8000/items/foo?short=True
```

或

```
http://127.0.0.1:8000/items/foo?short=true
```

或

```
http://127.0.0.1:8000/items/foo?short=on
```

或

```
http://127.0.0.1:8000/items/foo?short=yes
```