Testing a GUI -how to?

There are some tests in my android project and configured CI
Before deploying tests are launched using gradle wrapper(4.10.3)
95% of tests are robolectric tests

And there are cases when these tests are not passing because of different reasons, but the problem is that when i run them from android studio GUI tests are working fine(passing).
For example i use mockito for mocking and mock-maker-inline, i have this MockMaker in core module that is used in all other modules, if i launch tests from android studio - they are passing, if i launch using gradle wrapper - they are all failing. It can be solved by adding MockMaker in module, where i have tests, but still why it is working from android studio, but not working from console?

What is the difference between these two launches?(default launch type from android studio and gradlew testDebug).
And is there a way to connect my custom gradle test task with android studio tests gui?