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from typing import Optional
from fastapi import FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel
app = FastAPI()
class SubModel(BaseModel):
a: Optional[str] = "foo"
class Model(BaseModel):
x: Optional[int] = None
sub: SubModel
class ModelSubclass(Model):
y: int
z: int = 0
w: Optional[int] = None
class ModelDefaults(BaseModel):
w: Optional[str] = None
x: Optional[str] = None
y: str = "y"
z: str = "z"
@app.get("/", response_model=Model, response_model_exclude_unset=True)
def get_root() -> ModelSubclass:
return ModelSubclass(sub={}, y=1, z=0)
@app.get(
"/exclude_unset", response_model=ModelDefaults, response_model_exclude_unset=True
)
def get_exclude_unset() -> ModelDefaults:
return ModelDefaults(x=None, y="y")
@app.get(
"/exclude_defaults",
response_model=ModelDefaults,
response_model_exclude_defaults=True,
)
def get_exclude_defaults() -> ModelDefaults:
return ModelDefaults(x=None, y="y")
@app.get(
"/exclude_none", response_model=ModelDefaults, response_model_exclude_none=True
)
def get_exclude_none() -> ModelDefaults:
return ModelDefaults(x=None, y="y")
@app.get(
"/exclude_unset_none",
response_model=ModelDefaults,
response_model_exclude_unset=True,
response_model_exclude_none=True,
)
def get_exclude_unset_none() -> ModelDefaults:
return ModelDefaults(x=None, y="y")
client = TestClient(app)
def test_return_defaults():
response = client.get("/")
assert response.json() == {"sub": {}}
def test_return_exclude_unset():
response = client.get("/exclude_unset")
assert response.json() == {"x": None, "y": "y"}
def test_return_exclude_defaults():
response = client.get("/exclude_defaults")
assert response.json() == {}
def test_return_exclude_none():
response = client.get("/exclude_none")
assert response.json() == {"y": "y", "z": "z"}
def test_return_exclude_unset_none():
response = client.get("/exclude_unset_none")
assert response.json() == {"y": "y"}
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