The tasks to install dependencies, run tests and code coverage

codeCoverage.yaml

- task: DotNetCoreCLI@2
    displayName: 'Install .NET tools from local manifest'
    inputs:
      command: custom
      custom: tool
      arguments: 'restore'

  - task: DotNetCoreCLI@2
    displayName: 'Run unit tests'
    inputs:
      command: 'test'
      arguments: '--no-build --configuration $(buildConfiguration) /p:CollectCoverage=true /p:CoverletOutputFormat=cobertura /p:CoverletOutput=$(Build.SourcesDirectory)/TestResults/Coverage/'
      publishTestResults: true
      projects: GreeterProject/GreeterTests/GreeterTests.csproj

  - task: DotNetCoreCLI@2
    displayName: 'Create code coverage report'
    inputs:
      command: custom
      custom: tool
      arguments: 'run reportgenerator -reports:$(Build.SourcesDirectory)/**/coverage.cobertura.xml -targetdir:$(Build.SourcesDirectory)/CodeCoverage -reporttypes:HtmlInline_AzurePipelines'

  - task: PublishCodeCoverageResults@1
    displayName: 'Publish code coverage report'
    inputs:
      codeCoverageTool: 'cobertura'
      summaryFileLocation: '$(Build.SourcesDirectory)/**/coverage.cobertura.xml'