Add support for TeamCity parallel tests #1687
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APErebus
commented
Dec 9, 2025
| var filePath = RootDirectory / "excluded.runSettings"; | ||
| File.WriteAllText(filePath, runSettingsFile); | ||
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| TeamCity.Instance.PublishArtifacts(filePath); |
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Publish the exclusion file for debugging
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| static string? TryBuildExcludedTestsSettingsFile(string baseFilter) | ||
| { | ||
| var excludedTestsFile = Environment.GetEnvironmentVariable("TeamCityTestExclusionFilePath"); |
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This is added via a teamcity build template on the specific test build config
Jtango18
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Dec 10, 2025
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Looks like a useful change, Ship it!
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To support parallel tests in TeamCity, we need to identify and parse the
excludedTests.txtfile that TeamCity generates for each parallel build. When teamcity splits the tests up for parallel builds, it sends an exclusion list to each parallel batch. It's in a format such asTo correctly filter the tests for each batch, we build a
.runSettingsfile and build a NunitWherequery that is the original filter plus all the excluded tests identified by TeamCity.Testing on TeamCity reduces the full chain time by approx. 20-30min.
It results in the same amount of tests being executed as on
main