azure-pipelines-tasks: PublishCodeCoverageResults can't find its own html report when the agent is installed to a dir with a space in the name

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Question, Bug, or Feature?
Type: Bug

Enter Task Name: PublishCodeCoverageResults@1

Environment

• Server - Azure Pipelines

• Agent - Hosted or Private:

    - Self hosted agent: vsts-agent-win-x64-2.168.2
  

  • Windows Server 2019 (1809)

Issue Description

Task is configured to process a cobertura-coverage.xml produced by jest

        - task: PublishCodeCoverageResults@1
          inputs:
            codeCoverageTool: 'Cobertura'
            summaryFileLocation: './coverage/cobertura-coverage.xml'
            failIfCoverageEmpty: true

On execution, the task processes this and writes the report to a new (unexpected?) directory

Writing report file 'D:\Azure\index.htm'

This and other output files representing the source files are written correctly. The cobertura-coverage.xml is uploaded as an artifact.

However the task then states

Generated code coverage html report: D:\Azure Agent\vsts-agent-win-x64-2.168.2\_work\_temp\cchtml

and generates a warning

##[warning]Directory not found: 'D:\Azure Agent\vsts-agent-win-x64-2.168.2\_work\_temp\cchtml

There is nothing in that _temp directory.

If I specifically set reportDirectory to 'D:\Azure' within the task it complains

[warning]Ignoring coverage report directory with Html content as we are auto-generating Html content

https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/test/publish-code-coverage-results?view=azure-devops doesn’t document the reportDirectory option aside to say it’s optional.

Have I come across a bug or is my configuration wrong?

Many thanks