Doing some improvement for stability:
1. Check hasSystemFeature(PackageManager.FEATURE_FACE) for non-face
service devices.
2. Wrap addAuthenticatorsRegisteredCallback()
3. Find mPreference before addAuthenticatorsRegisteredCallback
Bug: 276680407
Bug: 278174667
Bug: 277647959
Bug: 277725506
Test: m RunSettingsRoboTests -j30 ROBOTEST_FILTER= \
FaceSettingsFooterPreferenceControllerTest
Change-Id: I81346b6eb8c44106c5e52867d69c8736203dd558
Running Settings Robolectric tests
The full suite
$ croot
$ make RunSettingsRoboTests
Running a single test class
$ croot
$ make RunSettingsRoboTests ROBOTEST_FILTER=<ClassName>
For example:
make RunSettingsRoboTests ROBOTEST_FILTER=CodeInspectionTest
You can also use partial class name in ROBOTEST_FILTER. If the partial class name matches multiple file names, all of them will be executed.