JUnit output is useful in GitLab and Azure DevOps pipelines.

JUnit format is quite nice and readable XML file. Both Azure DevOps and GitLab support this format and use it to display visualy attractive summary of test runs.

An example of output looks like this:

JUnit output in CAT

The format is widely used, your CI/CD platfrom potentially may support it too. Let CAT create it:

Output: junit

and then just upload the created file to wherever your platfrom expects it. See Integrations seciton in help for detailed tutorials with screenshots.

This is an example of Azure DevOps pipeline run result with test details - it uses JUnit format to display that:

Azure DevOps test details