Currently the NearbyController crashes when it is called with a
places list that is null. This is caused by the NearbyMapFragment
not handling this state correctly.
This commit adds tests for an empty list and null, which reproduce
the problem. An early return in the NearbyController can make
the tests pass, but might not be the best solution for this issue.
Currently the nearby activity is not included in the Espresso
tests.
This commit adds one test that checks if the activity loads
and the headline is displayed.
