This should help with tracking code coverage and also explains some
coverage discrepancies encountered while writing other tests.
Bug: T201193
Change-Id: I8b20abc46c2d6c6f582953139b9a9f3710b2e4ea
Adding the template for unit tests and some tests. These should cover
all the validation failure cases.
Bug: T42478
Depends-On: Ib7a0335fa7fb3b8a21765438a720205656c1ea09
Change-Id: I3fd0d627295d680ed33b1cbc730435df0446277f