Bug: run_app silently returns a URL to the user even if startup fails

[marcuslimdw]

Description

testing.client.subprocess_client.run_app loops 100 times while checking if the hosted app is up. Crucially, if the app is not up after those 100 iterations. it still yields the putative app URL to the consuming test, which will most likely get a "connection refused" or similar error.

I think the correct behaviour here is instead to raise an error (something to the effect of "app failed to start"); perhaps this could be a customisable timeout that determines how many iterations before failure...?

Litestar Version

2.14.0

Platform

• Linux
• Mac
• Windows
• Other (Please specify in the description above)