from fastapi import Depends, FastAPI from fastapi.testclient import TestClient app = FastAPI() async def user_exists(user_id: int): return True @app.get("/users/{user_id}", dependencies=[Depends(user_exists)]) async def read_users(user_id: int): pass client = TestClient(app) def test_read_users(): response = client.get("/users/42") assert response.status_code == 200, response.text def test_openapi_schema(): response = client.get("/openapi.json") data = response.json() assert data == { "openapi": "3.1.0", "info": {"title": "FastAPI", "version": "0.1.0"}, "paths": { "/users/{user_id}": { "get": { "summary": "Read Users", "operationId": "read_users_users__user_id__get", "parameters": [ { "required": True, "schema": {"title": "User Id", "type": "integer"}, "name": "user_id", "in": "path", }, ], "responses": { "200": { "description": "Successful Response", "content": {"application/json": {"schema": {}}}, }, "422": { "description": "Validation Error", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/HTTPValidationError" } } }, }, }, } } }, "components": { "schemas": { "HTTPValidationError": { "title": "HTTPValidationError", "type": "object", "properties": { "detail": { "title": "Detail", "type": "array", "items": {"$ref": "#/components/schemas/ValidationError"}, } }, }, "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"}, }, }, } }, }