}

  /**
   * @since 28.1 (but only since 33.4.0 in the Android flavor)
   */
  public static SpliteratorTester<Long> ofLong(Supplier<Spliterator.OfLong> spliteratorSupplier) {
    return new SpliteratorTester<>(
        ImmutableSet.of(
            () -> new GeneralSpliteratorOfObject<>(spliteratorSupplier.get()),

    return cachingHashMap.size();
  }

  @Override
  public boolean isEmpty() {
    return cachingHashMap.isEmpty();
  }

  @Override
  public V get(Object key) {
    checkNotNull(key);
    Timestamped<V> value = cachingHashMap.get(key);

    if (value == null) {
      statsCounter.recordMisses(1);
      return null;
    } else if (!isExpired(value)) {
      statsCounter.recordHits(1);

    response = client.get(url)
    assert response.status_code == 200, response.text
    assert response.json() == {"q": ["foo", "bar"]}


def test_query_no_values():
    url = "/items/"
    response = client.get(url)
    assert response.status_code == 200, response.text
    assert response.json() == {"q": None}


def test_openapi_schema():
    response = client.get("/openapi.json")

    return form_data


@app.get("/users/me")
def read_users_me(current_user: Optional[User] = Depends(get_current_user)):
    if current_user is None:
        return {"msg": "Create an account first"}
    return current_user


client = TestClient(app)


def test_security_oauth2():
    response = client.get("/users/me", headers={"Authorization": "Bearer footokenbar"})

def test_query_param_model_defaults(client: TestClient):
    response = client.get("/items/")
    assert response.status_code == 200
    assert response.json() == {
        "limit": 100,
        "offset": 0,
        "order_by": "created_at",
        "tags": [],
    }


def test_query_param_model_invalid(client: TestClient):
    response = client.get(
        "/items/",
        params={
            "limit": 150,

from docs_src.metadata.tutorial001_1 import app

client = TestClient(app)


def test_items():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"name": "Katana"}]


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",

```Python hl_lines="6"
{!../../docs_src/first_steps/tutorial001.py!}
```
Декоратор `@app.get("/")` вказує **FastAPI**, що функція нижче, відповідає за обробку запитів, які надходять до неї:

* шлях `/`
* використовуючи <abbr title="an HTTP GET method"><code>get</code> операцію</abbr>

/// info | "`@decorator` Додаткова інформація"

Синтаксис `@something` у Python називається "декоратором".

          public void run() {
            runCalled.getAndIncrement();
          }
        },
        directExecutor());
    list.execute();
    assertEquals(1, runCalled.get());
    list.execute();
    assertEquals(1, runCalled.get());
  }

  public void testExecute_idempotentConcurrently() throws InterruptedException {
    final CountDownLatch okayToRun = new CountDownLatch(1);

        final String proxyHost = (String) paramMap.get(Param.Client.PROXY_HOST);
        final String proxyPort = (String) paramMap.get(Param.Client.PROXY_PORT);
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {
            // proxy credentials
            if (paramMap.get(Param.Client.PROXY_USERNAME) != null && paramMap.get(Param.Client.PROXY_PASSWORD) != null) {

            result.setCreatedBy(DfTypeUtil.toString(source.get("createdBy")));
            result.setCreatedTime(DfTypeUtil.toLong(source.get("createdTime")));
            result.setDuplicateHostName(DfTypeUtil.toString(source.get("duplicateHostName")));
            result.setRegularName(DfTypeUtil.toString(source.get("regularName")));
            result.setSortOrder(DfTypeUtil.toInteger(source.get("sortOrder")));