dotnet/roslyn

Add test to demonstrate that retargeted error symbols cause use-site errors

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#4,680 opened on Aug 20, 2015

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Area-CompilersTesthelp wanted

Description

We should add a test for any fix for 1090472, demonstrating that retargeted error symbols cause the dependent compilation to produce an error rather than compiling without error.

One approach to testing it, if it is hard to find a repro otherwise, is to add a compiler flag that forces an error symbol that requires retargeting.

Migrated from TFS/DevDiv 1090473

Contributor guide

Tech stack
csharp
Domain
toolingbackend
Issue type
test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
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.
mostly clear
Prerequisites
C# knowledgeRoslyn compiler internalstest framework familiarity
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
The issue asks for a test that demonstrates retargeted error symbols cause use site errors. One approach is to add a compiler flag that forces an error symbol requiring retargeting. The test should be added to the Roslyn test suite, likely in the compiler test project. No specific files are mentioned, but the test should be based on the linked issue 1090472 (not provided here).