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from typing import List, Optional
import pytest
from fastapi import FastAPI
from fastapi.exceptions import ResponseValidationError
from fastapi.testclient import TestClient
from pydantic.dataclasses import dataclass
app = FastAPI()
@dataclass
class Item:
name: str
price: Optional[float] = None
owner_ids: Optional[List[int]] = None
@app.get("/items/invalid", response_model=Item)
def get_invalid():
return {"name": "invalid", "price": "foo"}
@app.get("/items/innerinvalid", response_model=Item)
def get_innerinvalid():
return {"name": "double invalid", "price": "foo", "owner_ids": ["foo", "bar"]}
@app.get("/items/invalidlist", response_model=List[Item])
def get_invalidlist():
return [
{"name": "foo"},
{"name": "bar", "price": "bar"},
{"name": "baz", "price": "baz"},
]
client = TestClient(app)
def test_invalid():
with pytest.raises(ResponseValidationError):
client.get("/items/invalid")
def test_double_invalid():
with pytest.raises(ResponseValidationError):
client.get("/items/innerinvalid")
def test_invalid_list():
with pytest.raises(ResponseValidationError):
client.get("/items/invalidlist")
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