Add unit tests for Tethering.isTetherProvisioningRequired

Check that we tolerate various dependencies not being available.

Bug: 31946071
Test: These are tests

Change-Id: Ic0a9cd6f255ba9ff4c774dee640df1a0bdf8dc39
1 file changed
tree: 91c5c112fc2a70c11aa481c965cdddf2340a4710
  1. core/
  2. services/
  3. tests/