[SP04] add unit test for NetworkStatsProvider
am: a97b5c3bb3

Change-Id: Icd440ff9086604cb0baaa4cb3e8e458dcda3bb97
tree: ca838059b046c6d63e60005aab80da137b0366b2
  1. core/
  2. packages/
  3. services/
  4. wifi/