assertEquals(2 * i + 1, (int) bimap.get(2 * i));
    }
    for (int i = 0; i < N; i++) {
      assertEquals(2 * i, (int) inverse.get(2 * i + 1));
    }
    for (int i = 0; i < N; i++) {
      int oldValue = bimap.get(2 * i);
      assertEquals(2 * i + 1, (int) bimap.put(2 * i, oldValue - 2));
    }
    for (int i = 0; i < N; i++) {
      assertEquals(2 * i - 1, (int) bimap.get(2 * i));
    }

from docs_src.behind_a_proxy.tutorial004_py39 import app

client = TestClient(app)


def test_main():
    response = client.get("/app")
    assert response.status_code == 200
    assert response.json() == {"message": "Hello World", "root_path": "/api/v1"}


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

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/", tags=["items"])
async def read_items():
    return [{"name": "Foo", "price": 42}]


@app.get("/users/", tags=["users"])
async def read_users():
    return [{"username": "johndoe"}]


@app.get("/elements/", tags=["items"], deprecated=True)
async def read_elements():

from fastapi import FastAPI
from fastapi.testclient import TestClient

app = FastAPI()


@app.get("/")
async def read_main():
    return {"msg": "Hello World"}


client = TestClient(app)


def test_read_main():
    response = client.get("/")
    assert response.status_code == 200

            assertEquals(expectedModifiedCount, result.modifiedCount(), description);

            // Verify the model version and namespace - use the updated document from pomMap
            Document updatedDocument = pomMap.get(Paths.get("pom.xml"));
            Editor editor = new Editor(updatedDocument);
            Element root = editor.root();
            assertEquals(expectedNamespace, root.namespaceURI(), "Namespace should be updated: " + description);

    }

    /**
     * Get a Kuromoji item.
     *
     * @param dictId The dictionary ID.
     * @param id The ID of the Kuromoji item.
     * @return An optional entity of the Kuromoji item.
     */
    public OptionalEntity<KuromojiItem> getKuromojiItem(final String dictId, final long id) {
        return getKuromojiFile(dictId).map(file -> file.get(id).get());
    }

    /**
     * Store a Kuromoji item.

            Map<Path, Document> pomMap = Map.of(Paths.get("pom.xml"), document);

            UpgradeContext context = createMockContext();
            UpgradeResult result = strategy.doApply(context, pomMap);

            // Strategy should handle malformed POMs gracefully
            assertNotNull(result, "Result should not be null");
            assertTrue(result.processedPoms().contains(Paths.get("pom.xml")), "POM should be marked as processed");

    responses={404: {"description": "Not found"}},
)


fake_items_db = {"plumbus": {"name": "Plumbus"}, "gun": {"name": "Portal Gun"}}


@router.get("/")
async def read_items():
    return fake_items_db


@router.get("/{item_id}")
async def read_item(item_id: str):
    if item_id not in fake_items_db:
        raise HTTPException(status_code=404, detail="Item not found")

def get_user(user_id: int, session: Annotated[Session, Depends(get_session)]):
    user = session.get(User, user_id)
    if not user:
        raise HTTPException(status_code=403, detail="Not authorized")


def generate_stream(query: str):
    for ch in query:
        yield ch
        time.sleep(0.1)


@app.get("/generate", dependencies=[Depends(get_user)])
def generate(query: str):

from fastapi import FastAPI, Path

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    *,
    item_id: int = Path(title="The ID of the item to get", gt=0, le=1000),
    q: str,
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})