Can't see Code Coverage from my code with Azure DevOps Build
If you are using the Azure Devops Srever (TFS 2019), there is a known issue on the Developer Community:
Code coverage tab missing in Azure DevOps Server
MS team reply: A fix for this issue has been released! Install the most recent release from https://visualstudio.microsoft.com/downloads/.
As workaround, you can try the method provided by jingzhu yan:
you can add copy files and publish build results steps , then you
candownload coverage result file from Artifacts.
If you are using Azure Devops services, make sure you have enable Code coverage enabled on the VS test task: