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from typing import Union
from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from pydantic import BaseModel
from typing_extensions import Annotated
app = FastAPI()
class UserForm(BaseModel):
name: str
email: str
class CompanyForm(BaseModel):
company_name: str
industry: str
@app.post("/form-union/")
def post_union_form(data: Annotated[Union[UserForm, CompanyForm], Form()]):
return {"received": data}
client = TestClient(app)
def test_post_user_form():
response = client.post(
"/form-union/", data={"name": "John Doe", "email": "john@example.com"}
)
assert response.status_code == 200, response.text
assert response.json() == {
"received": {"name": "John Doe", "email": "john@example.com"}
}
def test_post_company_form():
response = client.post(
"/form-union/", data={"company_name": "Tech Corp", "industry": "Technology"}
)
assert response.status_code == 200, response.text
assert response.json() == {
"received": {"company_name": "Tech Corp", "industry": "Technology"}
}
def test_invalid_form_data():
response = client.post(
"/form-union/",
data={"name": "John", "company_name": "Tech Corp"},
)
assert response.status_code == 422, response.text
def test_empty_form():
response = client.post("/form-union/")
assert response.status_code == 422, response.text
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": {
"/form-union/": {
"post": {
"summary": "Post Union Form",
"operationId": "post_union_form_form_union__post",
"requestBody": {
"content": {
"application/x-www-form-urlencoded": {
"schema": {
"anyOf": [
{"$ref": "#/components/schemas/UserForm"},
{"$ref": "#/components/schemas/CompanyForm"},
],
"title": "Data",
}
}
},
"required": True,
},
"responses": {
"200": {
"description": "Successful Response",
"content": {"application/json": {"schema": {}}},
},
"422": {
"description": "Validation Error",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/HTTPValidationError"
}
}
},
},
},
}
}
},
"components": {
"schemas": {
"CompanyForm": {
"properties": {
"company_name": {"type": "string", "title": "Company Name"},
"industry": {"type": "string", "title": "Industry"},
},
"type": "object",
"required": ["company_name", "industry"],
"title": "CompanyForm",
},
"HTTPValidationError": {
"properties": {
"detail": {
"items": {"$ref": "#/components/schemas/ValidationError"},
"type": "array",
"title": "Detail",
}
},
"type": "object",
"title": "HTTPValidationError",
},
"UserForm": {
"properties": {
"name": {"type": "string", "title": "Name"},
"email": {"type": "string", "title": "Email"},
},
"type": "object",
"required": ["name", "email"],
"title": "UserForm",
},
"ValidationError": {
"properties": {
"loc": {
"items": {
"anyOf": [{"type": "string"}, {"type": "integer"}]
},
"type": "array",
"title": "Location",
},
"msg": {"type": "string", "title": "Message"},
"type": {"type": "string", "title": "Error Type"},
},
"type": "object",
"required": ["loc", "msg", "type"],
"title": "ValidationError",
},
}
},
}
|
