TRX output is useful in Azure DevOps pipelines.

Uggly, isn’t it?

TRX output in CAT

Uggly, but useful. It is not eye candy, it is a format that tools and platforms like Visual Studio, Visual Studio Code or Azure DevOps understand.

In Azure DevOps, if you use Publish Test Results task, you will get nice overview with charts directly in the results of an automation pipeline:

Azure DevOps test results

You can see details of a single failed test:

Azure DevOps single test detail