If code depends on buggy (including insecure) behavior,
then fixing the bug will break that code.
New features can also have similar impacts:
enabling the HTTP/2 use by the HTTP client broke programs
connecting to servers with buggy HTTP/2 implementations.
These kinds of changes are unavoidable and
[permitted by the Go 1 compatibility rules](/doc/go1compat).
Even so, Go provides a mechanism called GODEBUG to

    (by catching the `IllegalStateException` if they weren't available). This new API restores that
    capability.

 *  Fix: Don't crash on `trailers()` if the response doesn't have a body. We broke [Retrofit] users
    who read the trailers on the `raw()` OkHttp response, after its body was decoded.


## Version 5.0.0

_2025-07-02_

def broken_dep() -> Any:
    yield "s"
    raise ValueError("Broken after yield")


app = FastAPI()


@app.get("/catching")
def catching(d: Annotated[str, Depends(catching_dep)]) -> Any:
    raise CustomError("Simulated error during streaming")


@app.get("/broken")
def broken(d: Annotated[str, Depends(broken_dep)]) -> Any:
    return {"message": "all good?"}

    def iter_data():
        yield from session

    return StreamingResponse(iter_data())


@app.get("/broken-session-data")
def get_broken_session_data(session: BrokenSessionDep) -> Any:
    return list(session)


@app.get("/broken-session-stream")
def get_broken_session_stream(session: BrokenSessionDep) -> Any:
    def iter_data():
        yield from session

@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket, session: SessionDep):
    await websocket.accept()
    for item in session:
        await websocket.send_text(f"{item}")


@app.websocket("/ws-broken")
async def websocket_endpoint_broken(websocket: WebSocket, session: BrokenSessionDep):
    await websocket.accept()
    for item in session:
        await websocket.send_text(f"{item}")  # pragma no cover

    with pytest.raises(
        FastAPIError,
        match='The dependency "get_named_func_session" has a scope of "request", it cannot depend on dependencies with scope "function"',
    ):

        @app.websocket("/broken-scope")
        async def get_broken(
            websocket: WebSocket, sessions: BrokenSessionsDep
        ) -> Any:  # pragma: no cover
            pass


def test_named_function_scope() -> None:

    with pytest.raises(
        FastAPIError,
        match='The dependency "get_named_func_session" has a scope of "request", it cannot depend on dependencies with scope "function"',
    ):

        @app.get("/broken-scope")
        def get_broken(sessions: BrokenSessionsDep) -> Any:  # pragma: no cover
            pass


def test_named_function_scope() -> None:
    response = client.get("/named-function-scope")

     * Run docs tests with the configuration cache enabled.
     */
    const val ENABLE_CONFIGURATION_CACHE_FOR_DOCS_TESTS = "enableConfigurationCacheForDocsTests"

    /**
     * Run docs tests that are knowingly broken when running with the configuration cache enabled. Only applied when #ENABLE_CONFIGURATION_CACHE_FOR_DOCS_TESTS is also set.
     */
    const val RUN_BROKEN_CONFIGURATION_CACHE_DOCS_TESTS = "runBrokenConfigurationCacheDocsTests"

        ]
    }


def test_post_broken_body(client: TestClient):
    response = client.post(
        "/items/",
        headers={"content-type": "application/json"},
        content="{some broken json}",
    )
    assert response.status_code == 422, response.text
    assert response.json() == {
        "detail": [
            {
                "type": "json_invalid",
                "loc": ["body", 1],

        if [[ ! -f $target ]] && [[ ! -d $target ]]; then
            echo "$i" >> errors.txt
        fi
        if [[ -e errors.txt ]]; then
            echo "Broken links found:"
            cat errors.txt
            rm errors.txt
            false
        fi
    done
}

@test "No duplicate files on Windows" {
    cat <<EOF