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Sync fastapi docs from b5ca1324 on 2025-12-07
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32 lines
997 B
Python

import functools
from fastapi import FastAPI
from fastapi.testclient import TestClient
from .forward_reference_type import forwardref_method
def passthrough(f):
@functools.wraps(f)
def method(*args, **kwargs):
return f(*args, **kwargs)
return method
def test_wrapped_method_type_inference():
"""
Regression test ensuring that when a method imported from another module
is decorated with something that sets the __wrapped__ attribute (functools.wraps),
then the types are still processed correctly, including dereferencing of forward
references.
"""
app = FastAPI()
client = TestClient(app)
app.post("/endpoint")(passthrough(forwardref_method))
app.post("/endpoint2")(passthrough(passthrough(forwardref_method)))
with client:
response = client.post("/endpoint", json={"input": {"x": 0}})
response2 = client.post("/endpoint2", json={"input": {"x": 0}})
assert response.json() == response2.json() == {"x": 1}