Azure Pipelines: Investigate uploading test logs as artifacts

[StephanTLavavej]

When tests fail, the error messages displayed in Azure Pipelines can be truncated if the command lines and/or error messages are very long (>4000 characters). Apparently, this is a limitation that can't be lifted or directly worked around. However, we should be able to upload the test logs as artifacts. run-tests.yml might be the file to modify:

STL/azure-devops/run-tests.yml

Lines 1 to 48 in bbd5dba

	# Copyright (c) Microsoft Corporation.
	# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
	parameters:
	- name: buildOutputLocationVar
	type: string
	default: buildOutputLocation
	- name: targetPlatform
	type: string
	- name: hostArch
	type: string
	- name: targetArch
	type: string
	- name: displayName
	type: string
	default: 'Run Tests'
	- name: publishArtifact
	type: boolean
	default: false
	steps:
	- task: CmdLine@2
	displayName: ${{ parameters.displayName }}
	timeoutInMinutes: 120
	condition: succeeded()
	inputs:
	workingDirectory: $(${{ parameters.buildOutputLocationVar }})
	script: |
	call "%ProgramFiles%\Microsoft Visual Studio\2022\Preview\Common7\Tools\VsDevCmd.bat" ^
	-host_arch=${{ parameters.hostArch }} -arch=${{ parameters.targetArch }} -no_logo
	ctest -V
	env: { TMP: $(tmpDir), TEMP: $(tmpDir) }
	- task: PublishTestResults@2
	displayName: 'Publish Tests'
	timeoutInMinutes: 10
	condition: succeededOrFailed()
	inputs:
	searchFolder: $(${{ parameters.buildOutputLocationVar }})
	testResultsFormat: JUnit
	testResultsFiles: '**/test-results.xml'
	testRunTitle: 'test-${{ parameters.targetPlatform }}-$(System.JobPositionInPhase)'
	- publish: $(${{ parameters.buildOutPutLocationVar }})/out
	artifact: '${{ parameters.targetPlatform }}-$(System.JobPositionInPhase)-libs-$(System.JobId)'
	condition: ${{ parameters.publishArtifact }}
	displayName: 'Publish Libs and Headers Artifact'
	- publish: $(${{ parameters.buildOutPutLocationVar }})/tests
	artifact: '${{ parameters.targetPlatform }}-$(System.JobPositionInPhase)-tests-$(System.JobId)'
	condition: ${{ parameters.publishArtifact }}
	displayName: 'Publish Tests Artifact'

I think these are the log files:

STL/azure-devops/native-build-test.yml

Line 20 in bbd5dba

xmlOutputFlag: '--xunit-xml-output=$(${{ parameters.buildOutputLocationVar }})/test-results.xml'

STL/azure-devops/cross-build.yml

Line 23 in bbd5dba

xmlOutputFlag: '--xunit-xml-output=$(${{ parameters.buildOutputLocationVar }})/test-results.xml'

[cbezault]

I think there should already be a way to get at the xml file behind the log output but otherwise what you've described will definitely work. Just add another publish block and you'll be good to go.