Merge "Add unit tests" into tm-mainline-prod am: fa5d2ac238

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/19033358

Change-Id: If62009deb30e2a1e2b1519d0079824036ea34ea8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>