Coverlet + Source Link + Deterministic build

.NET Core version 3.1.300+

Packing

NB: before packing, please reset the repository (reset.ps1).

Non-deterministic packing.

dotnet pack

Deterministic packing.

dotnet pack /p:ContinuousIntegrationBuild=true

Code Coverage

IMPORTANT: reset the repository between each run (reset.ps1).

UPDATE: fixed with the current nightly builds of coverlet.

Coverlet with UseSourceLink = false works fine.

dotnet test /p:CollectCoverage=true
dotnet test /p:CollectCoverage=true /p:ContinuousIntegrationBuild=true
dotnet test --collect:"XPlat Code Coverage"
dotnet test --collect:"XPlat Code Coverage" /p:ContinuousIntegrationBuild=true

Coverlet with UseSourceLink = true and ContinuousIntegrationBuild = false works fine.

dotnet test /p:CollectCoverage=true /p:UseSourceLink=true
dotnet test --collect:"XPlat Code Coverage" --settings coverlet.USL.runsettings

Coverlet with UseSourceLink = true and ContinuousIntegrationBuild = true fails.

dotnet test /p:CollectCoverage=true /p:UseSourceLink=true /p:ContinuousIntegrationBuild=true
dotnet test --collect:"XPlat Code Coverage" --settings coverlet.USL.runsettings /p:ContinuousIntegrationBuild=true

Detailed error:

Data collector 'XPlat code coverage' message: [coverlet]Coverlet.Collector.Utilities.CoverletDataCollectorException: CoverletCoverageDataCollector: Failed to get coverage result
 ---> System.Collections.Generic.KeyNotFoundException: The given key '' was not present in the dictionary.
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at Coverlet.Core.Coverage.GetSourceLinkUrl(Dictionary`2 sourceLinkDocuments, String document) in /_/src/coverlet.core/Coverage.cs:line 452
   at Coverlet.Core.Coverage.CalculateCoverage() in /_/src/coverlet.core/Coverage.cs:line 350
   at Coverlet.Core.Coverage.GetCoverageResult() in /_/src/coverlet.core/Coverage.cs:line 141
   at Coverlet.Collector.DataCollection.CoverageWrapper.GetCoverageResult(Coverage coverage) in /_/src/coverlet.collector/DataCollection/CoverageWrapper.cs:line 44
   at Coverlet.Collector.DataCollection.CoverageManager.GetCoverageResult() in /_/src/coverlet.collector/DataCollection/CoverageManager.cs:line 93
   --- End of inner exception stack trace ---
   at Coverlet.Collector.DataCollection.CoverageManager.GetCoverageResult() in /_/src/coverlet.collector/DataCollection/CoverageManager.cs:line 98
   at Coverlet.Collector.DataCollection.CoverletCoverageCollector.OnSessionEnd(Object sender, SessionEndEventArgs e) in /_/src/coverlet.collector/DataCollection/CoverletCoverageCollector.cs:line 160.

If we force DeterministicSourcePaths to false, things work again. The build won't be fully deterministic, but Coverlet will use Source Link.

dotnet test /p:CollectCoverage=true /p:UseSourceLink=true /p:ContinuousIntegrationBuild=true /p:DeterministicSourcePaths=false