test_dependency_duplicates.py — fastapi Source File

Source Code

from fastapi import Depends, FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel

app = FastAPI()

client = TestClient(app)


class Item(BaseModel):
    data: str


def duplicate_dependency(item: Item):
    return item


def dependency(item2: Item):
    return item2


def sub_duplicate_dependency(
    item: Item, sub_item: Item = Depends(duplicate_dependency)
):
    return [item, sub_item]


@app.post("/with-duplicates")
async def with_duplicates(item: Item, item2: Item = Depends(duplicate_dependency)):
    return [item, item2]


@app.post("/no-duplicates")
async def no_duplicates(item: Item, item2: Item = Depends(dependency)):
    return [item, item2]


@app.post("/with-duplicates-sub")
async def no_duplicates_sub(
    item: Item, sub_items: list[Item] = Depends(sub_duplicate_dependency)
):
    return [item, sub_items]


def test_no_duplicates_invalid():
    response = client.post("/no-duplicates", json={"item": {"data": "myitem"}})
    assert response.status_code == 422, response.text
    assert response.json() == {
        "detail": [
            {
                "type": "missing",
                "loc": ["body", "item2"],
                "msg": "Field required",
                "input": None,
            }
        ]
    }


// ... (178 more lines)