typelevel / typelevel/fs2

Errors are not always caught with .handleErrorWith

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#3,045 11 comments 0 reactions 0 assignees View on GitHub

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bug
Dominant language
Scala
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Merged PRs (30d)
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Description

Take a look at https://github.com/nikiforo/fs21107

The project can be run with sbt "test:runMain ru.delimobil.FS2Example"

I expect the execution to continue inifinitely. However it ends with Errored(java.lang.IllegalArgumentException: TheException) in tens seconds.

I can further minimize the example. I've checked fs2 3.2.4, 3.3.0, both versions end with Errrored message

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First steps

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Research direction

Clone the linked reproducer and run sbt "test:runMain ru.delimobil.FS2Example" to observe the failure. Compare the behavior with fs2 3.2.4 and 3.3.0, then trace the handleErrorWith usage in ru.delimobil.FS2Example. Done means the execution continues indefinitely instead of ending with the reported Errored message.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
stream-processing
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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