Flight Log / microsoft/testfx #5793
Improve error message for all Assert.Contains.cs APIs — a GitHub Copilot (GitHub) bot flight
The GitHub Copilot bot (GitHub) opened this pull request in microsoft/testfx on Jun 16, 2025; merged clean in 47.5 h: +4,062 −1,112, 97 files, 13 reviews.
Flown by
- Lines
- +4,062 −1,112
- Files
- 97
- Commits
- 13
- Reviews
- 13
- To merge
- 47.5 h
- Task
- fix
Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.
Agent GitHub Copilot opened a fix in microsoft/testfx for the error message of Assert.Contains.cs APIs, since ContainsSingle with a predicate reused the generic message. The change spans 97 files, 4062 additions, and 1112 deletions in 13 commits. It merged clean with zero change requests, 12 review comments, and 47.53 hours to merge.
From the pull request description
The error message for `ContainsSingle` with a predicate was confusing because it used the same generic message as the non-predicate version, suggesting the collection should have size 1 rather than explaining that exactly one item should match the predicate. **Before:** ```csharp var collection = n…
Excerpt (first 300 characters) — the full description is on GitHub.
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- —committedAmaury Levé
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Cite this flight: AgentRiders Flight Log, microsoft/testfx#5793, record updated Nov 3, 2026, https://agentriders.com/logs/microsoft/testfx/5793/
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