Merge "[Settings] Fix roboletric test fail and add new test case." into udc-dev am: 08366227

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/23691723



Change-Id: I2fe19557e53756a2e61071ae530f89756cb32eab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>