mirror of https://github.com/encode/starlette.git
116 lines
2.9 KiB
Python
116 lines
2.9 KiB
Python
import asyncio
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import pytest
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from starlette.applications import Starlette
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from starlette.responses import JSONResponse
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from starlette.testclient import TestClient
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from starlette.websockets import WebSocket, WebSocketDisconnect
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mock_service = Starlette()
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@mock_service.route("/")
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def mock_service_endpoint(request):
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return JSONResponse({"mock": "example"})
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app = Starlette()
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@app.route("/")
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def homepage(request):
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client = TestClient(mock_service)
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response = client.get("/")
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return JSONResponse(response.json())
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startup_error_app = Starlette()
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@startup_error_app.on_event("startup")
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def startup():
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raise RuntimeError()
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def test_use_testclient_in_endpoint():
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"""
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We should be able to use the test client within applications.
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This is useful if we need to mock out other services,
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during tests or in development.
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"""
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client = TestClient(app)
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response = client.get("/")
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assert response.json() == {"mock": "example"}
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def testclient_as_contextmanager():
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with TestClient(app):
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pass
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def test_error_on_startup():
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with pytest.raises(RuntimeError):
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with TestClient(startup_error_app):
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pass # pragma: no cover
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def test_testclient_asgi2():
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def app(scope):
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async def inner(receive, send):
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await send(
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{
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"type": "http.response.start",
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"status": 200,
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"headers": [[b"content-type", b"text/plain"]],
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}
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)
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await send({"type": "http.response.body", "body": b"Hello, world!"})
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return inner
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client = TestClient(app)
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response = client.get("/")
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assert response.text == "Hello, world!"
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def test_testclient_asgi3():
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async def app(scope, receive, send):
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await send(
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{
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"type": "http.response.start",
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"status": 200,
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"headers": [[b"content-type", b"text/plain"]],
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}
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)
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await send({"type": "http.response.body", "body": b"Hello, world!"})
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client = TestClient(app)
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response = client.get("/")
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assert response.text == "Hello, world!"
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def test_websocket_blocking_receive():
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def app(scope):
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async def respond(websocket):
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await websocket.send_json({"message": "test"})
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async def asgi(receive, send):
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websocket = WebSocket(scope, receive=receive, send=send)
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await websocket.accept()
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asyncio.ensure_future(respond(websocket))
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try:
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# this will block as the client does not send us data
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# it should not prevent `respond` from executing though
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await websocket.receive_json()
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except WebSocketDisconnect:
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pass
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return asgi
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client = TestClient(app)
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with client.websocket_connect("/") as websocket:
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data = websocket.receive_json()
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assert data == {"message": "test"}
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