Add test coverage for NetworkSpecifiers.

Tests various combinations of empty / non-empty NetworkSpecifiers
and changing specifiers on the fly.

Test: ConnectivityServiceTest passes
Bug: 27533960
Change-Id: Ibd6b4efc861dc51689e46f3882ba859223411bf0
1 file changed
tree: 18eadc2168328b633102a4cb75017d1a1ac004cd
  1. core/
  2. services/
  3. tests/