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test_union_inherited_body.py
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/
test_union_inherited_body.py
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from typing import Optional, Union
from dirty_equals import IsDict
from fastapi import FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel
app = FastAPI()
class Item(BaseModel):
name: Optional[str] = None
class ExtendedItem(Item):
age: int
@app.post("/items/")
def save_union_different_body(item: Union[ExtendedItem, Item]):
return {"item": item}
client = TestClient(app)
def test_post_extended_item():
response = client.post("/items/", json={"name": "Foo", "age": 5})
assert response.status_code == 200, response.text
assert response.json() == {"item": {"name": "Foo", "age": 5}}
def test_post_item():
response = client.post("/items/", json={"name": "Foo"})
assert response.status_code == 200, response.text
assert response.json() == {"item": {"name": "Foo"}}
def test_openapi_schema():
response = client.get("/openapi.json")
assert response.status_code == 200, response.text
assert response.json() == {
"openapi": "3.1.0",
"info": {"title": "FastAPI", "version": "0.1.0"},
"paths": {
"/items/": {
"post": {
"responses": {
"200": {
"description": "Successful Response",
"content": {"application/json": {"schema": {}}},
},
"422": {
"description": "Validation Error",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/HTTPValidationError"
}
}
},
},
},
"summary": "Save Union Different Body",
"operationId": "save_union_different_body_items__post",
"requestBody": {
"content": {
"application/json": {
"schema": {
"title": "Item",
"anyOf": [
{"$ref": "#/components/schemas/ExtendedItem"},
{"$ref": "#/components/schemas/Item"},
],
}
}
},
"required": True,
},
}
}
},
"components": {
"schemas": {
"Item": {
"title": "Item",
"type": "object",
"properties": {
"name": IsDict(
{
"title": "Name",
"anyOf": [{"type": "string"}, {"type": "null"}],
}
)
| IsDict(
# TODO: remove when deprecating Pydantic v1
{"title": "Name", "type": "string"}
)
},
},
"ExtendedItem": {
"title": "ExtendedItem",
"required": ["age"],
"type": "object",
"properties": {
"name": IsDict(
{
"title": "Name",
"anyOf": [{"type": "string"}, {"type": "null"}],
}
)
| IsDict(
# TODO: remove when deprecating Pydantic v1
{"title": "Name", "type": "string"}
),
"age": {"title": "Age", "type": "integer"},
},
},
"ValidationError": {
"title": "ValidationError",
"required": ["loc", "msg", "type"],
"type": "object",
"properties": {
"loc": {
"title": "Location",
"type": "array",
"items": {
"anyOf": [{"type": "string"}, {"type": "integer"}]
},
},
"msg": {"title": "Message", "type": "string"},
"type": {"title": "Error Type", "type": "string"},
},
},
"HTTPValidationError": {
"title": "HTTPValidationError",
"type": "object",
"properties": {
"detail": {
"title": "Detail",
"type": "array",
"items": {"$ref": "#/components/schemas/ValidationError"},
}
},
},
}
},
}