How to skip a task inside a plan with multiple branches? Edited

[Annexta Duong]

Hello, 

I have a plan with the master and branches. They share a single defualt job. Inside the job there are many task. However, the master fails the test because it does not have a specific piece that is only available on a feature branch. How do I get specific task to only run on the feature branch and ignore every other branch during the process of testing?

Thank you.