Cruises - Code Search

tests/test_dependency_contextvars.py

    The code before yield and the code after yield should be run in the same contextvar
    context, so that request_state_context_var.reset(contextvar_token).

    If they are run in a different context, that raises an error.
    """
    response = client.get("/user")
    assert response.json() == "deadpond"

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_tutorial/test_dependencies/test_tutorial008c.py

    assert response.status_code == 200, response.text
    assert response.json() == "plumbus"


def test_fastapi_error(mod: ModuleType):
    client = TestClient(mod.app)
    with pytest.raises(FastAPIError) as exc_info:
        client.get("/items/portal-gun")
    assert "raising an exception and a dependency with yield" in exc_info.value.args[0]


def test_internal_server_error(mod: ModuleType):

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_datastructures.py

import pytest
from fastapi import FastAPI, UploadFile
from fastapi.datastructures import Default
from fastapi.testclient import TestClient


def test_upload_file_invalid_pydantic_v2():
    with pytest.raises(ValueError):
        UploadFile._validate("not a Starlette UploadFile", {})


def test_default_placeholder_equals():
    placeholder_1 = Default("a")
    placeholder_2 = Default("a")

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_tutorial/test_websockets/test_tutorial001.py


def test_main():
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert b"<!DOCTYPE html>" in response.content


def test_websocket():
    with pytest.raises(WebSocketDisconnect):
        with client.websocket_connect("/ws") as websocket:
            message = "Message one"
            websocket.send_text(message)
            data = websocket.receive_text()

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_dependency_after_yield_websockets.py

        data = websocket.receive_text()
        assert data == "bar"
        data = websocket.receive_text()
        assert data == "baz"


def test_websocket_dependency_after_yield_broken():
    with pytest.raises(ValueError, match="Session closed"):
        with client.websocket_connect("/ws-broken"):

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_inherited_custom_class.py

    def return_fast_uuid():
        asyncpg_uuid = MyUuid("a10ff360-3b1e-4984-a26f-d3ab460bdb51")
        assert isinstance(asyncpg_uuid, uuid.UUID)
        assert type(asyncpg_uuid) is not uuid.UUID
        with pytest.raises(TypeError):
            vars(asyncpg_uuid)
        return {"fast_uuid": asyncpg_uuid}

    class SomeCustomClass(BaseModel):
        model_config = {"arbitrary_types_allowed": True}

        a_uuid: MyUuid

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_filter_pydantic_sub_model_pv2.py

        "description": "model-a-desc",
        "foo": {"username": "test-user"},
        "tags": {"key1": "value1", "key2": "value2"},
    }


def test_validator_is_cloned(client: TestClient):
    with pytest.raises(ResponseValidationError) as err:
        client.get("/model/modelX")
    assert err.value.errors() == [
        {
            "type": "value_error",
            "loc": ("response", "name"),

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_dependency_yield_scope_websockets.py

    assert data["session_open"] is True
    assert global_state["session_closed"] is True
    assert global_state["named_session_closed"] is True


def test_broken_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.websocket("/broken-scope")

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

tests/test_dependency_yield_scope.py

    assert response.status_code == 200
    data = response.json()
    assert data["named_session_open"] is True
    assert data["session_open"] is True


def test_broken_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")

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

docs/en/docs/tutorial/handling-errors.md

You can override these exception handlers with your own.

### Override request validation exceptions { #override-request-validation-exceptions }

When a request contains invalid data, **FastAPI** internally raises a `RequestValidationError`.

And it also includes a default exception handler for it.

Created: Sun Dec 28 07:19:09 GMT 2025

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