How to choose Chrome User Profile before a test (e2e)?

I would like to choose Chrome user profile to test my app (Ionic 3 PWA) so that I can do login mannually before run the tests. The app tests are based on the ionic-unit-testing-example.

In the way it works today it opens a new user profile which only exists during the test execution.

How to choose Chrome User Profile before a test (e2e)?