fastapi

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from functools import partial
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from typing import Optional
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from fastapi import FastAPI
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from fastapi.testclient import TestClient
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def main(some_arg, q: Optional[str] = None):
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    return {"some_arg": some_arg, "q": q}
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endpoint = partial(main, "foo")
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app = FastAPI()
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app.get("/")(endpoint)
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client = TestClient(app)
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def test_partial():
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    response = client.get("/?q=bar")
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    data = response.json()
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    assert data == {"some_arg": "foo", "q": "bar"}
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