Summary
Follow-up from https://github.com/orgs/litestar-org/discussions/3547
The litestart test clients directly call the ASGI app instance. When calling stream endpoints like SSEs, they will always try to consume the whole stream. If the endpoint serves an infinite generator, the test client is stuck. This does not happen for the test client websocket implementation is because it "cheats" by not implementing the actual websocket protocol but using an internal queue to transport the messages.
The solution for this edge case is to run the app in a subprocess (e.g. via uvicorn) and then use an httpx client to connect to the web app.
Basic Example
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Drawbacks and Impact
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Unresolved questions
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