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dev-packages/e2e-tests/test-applications/nextjs-16/tests/middleware.test.ts
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chargome
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Thanks for looking into this! Did you test this out in a local testing app and check how the transactions end up in Sentry?
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Yep, they end up always in the same transaction. Also that very test locally always passes, I ran it many times and it didn't fail once, so it must be a timing issue or a CI quirk rather than a bug. My idea here is to test that the user get something rather than nothing, I know it's not ideal but I cannot reproduce it. |
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I can't reproduce the flakiness locally, I logged a few things on CI runs and it seems while the fetch spans does get created, it doesn't get created on the middletrasnaction.
This is similar to what the note is saying in dev-mode, for it to be less flakey I'm asserting if it either has the span on the right transaction or if it got created in a separate transaction. Ideally we want it to be created within the middleware transaction but it seems like there is a timing issue preventing it from being picked up there.
At any case this seems to reduce or eliminate the chances of failed runs, previously it would fail consistently but with this it didn't fail in 5 runs so far.