azure-pipelines-tasks: PublishCodeCoverageResultsV1 cannot handle multiple coverage files

Type: Feature

Enter Task Name: PublishCodeCoverageResultsV1

list here (V# not needed):

• https://github.com/microsoft/azure-pipelines-tasks/tree/master/Tasks/PublishCodeCoverageResultsV1

Environment

• Server - Azure Pipelines

• Agent - Hosted

Issue Description

I have a .NET Core project which has multiple tests projects in the solution. Each test project creates a cobertura.xml code coverage file, made by coverlet.

When I run the PublishCodeCoverageResultsV1 task it fails to ‘know’ that I have multiple files and just picks the first one.

Expected Results: The task is smart enough to merge all files FIRST, then PROCESS the summary file SECOND.

Error/Warning log:

This is the warning in the log file:

##[warning]Multiple file or directory matches were found. Using the first match: /home/vsts/work/1/s/CodeCoverageResults/1fd2623f-e60a-4f9a-b3e0-2d4df53f6440/coverage.cobertura.xml

Sample logs:

Starting: PublishCodeCoverageResults
==============================================================================
Task         : Publish code coverage results
Description  : Publish Cobertura or JaCoCo code coverage results from a build
Version      : 1.160.4
Author       : Microsoft Corporation
Help         : https://docs.microsoft.com/azure/devops/pipelines/tasks/test/publish-code-coverage-results
==============================================================================
##[warning]Multiple file or directory matches were found. Using the first match: /home/vsts/work/1/s/CodeCoverageResults/1fd2623f-e60a-4f9a-b3e0-2d4df53f6440/coverage.cobertura.xml
/usr/bin/dotnet /home/vsts/work/_tasks/PublishCodeCoverageResults_2a7ebc54-c13e-490e-81a5-d7561ab7cd97/1.160.4/netcoreapp2.0/ReportGenerator.dll -reports:**/*.xml -targetdir:/home/vsts/work/_temp/cchtml -reporttypes:HtmlInline_AzurePipelines
2020-08-20T03:47:12: Arguments
2020-08-20T03:47:12:  -reports:**/*.xml
2020-08-20T03:47:12:  -targetdir:/home/vsts/work/_temp/cchtml
2020-08-20T03:47:12:  -reporttypes:HtmlInline_AzurePipelines
2020-08-20T03:47:14: Writing report file '/home/vsts/work/_temp/cchtml/index.html'
2020-08-20T03:47:14: Report generation took 1.9 seconds
Generated code coverage html report: /home/vsts/work/_temp/cchtml
Reading code coverage summary from '/home/vsts/work/1/s/CodeCoverageResults/1fd2623f-e60a-4f9a-b3e0-2d4df53f6440/coverage.cobertura.xml'
Async Command Start: Publish code coverage
Publishing coverage summary data to TFS server.
 Lines- 352 of 3960 covered.
 Branches- 69 of 1337 covered.
Modifying Cobertura Index file
Publishing code coverage files to TFS server.
Uploading 173 files
Total file: 173 ---- Processed file: 96 (55%)
File upload succeed.
Published '/home/vsts/work/_temp/cchtml' as artifact 'Code Coverage Report_3911'
Async Command End: Publish code coverage
Finishing: PublishCodeCoverageResults

Thank you kindly!