Testing Activity with a Fragment with Robolectric

问题

I want to check if the Activity I create in a test is showing a Fragment. How can I do this? I've tried searching through Stack Overflow and Google but I couldn't find anything.

回答1:

You need to find the fragment by id with

activity.getFragmentManager.findFragmentById(R.id.your_fragment_container);

If this returns something different from null, then it means that your container has a Fragment.

来源：https://stackoverflow.com/questions/33811580/testing-activity-with-a-fragment-with-robolectric