dotnet/orleans

Add a test to produce into a stream for the 1st time in OnDeactivateAsync

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#1,830 opened on Jun 10, 2016

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enhancementhacktoberfesthelp wanted

Description

We probably want to add a test case for streams where a grain subscribes to a stream but never produces to it, and then in OnDeactivateAsync is produces to a stream for the 1st time (or calls OnCompletedAsync). That may expose a bug, since we will start a first time producer initialization while deactivating, and this will be followed by producer unregistration as part of DeactivateStreamResources.

Reported https://gitter.im/dotnet/orleans?at=57596f821cf76dd64535887d

Contributor guide

Tech stack
csharp
Domain
backendtesting
Issue type
test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
C#Orleans fundamentals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Add a test in the Orleans test project (e.g., under `test/Tester/StreamingTests/`). Simulate a grain that subscribes to a stream but never produces, then calls produce or OnCompletedAsync in OnDeactivateAsync. Ensure the test covers initialization of a first time producer during deactivation and subsequent producer unregistration. Reference the gitter discussion for context.