Audio Test Harness - Small Changes to Base Service and sets up Presubmit Tests:

- Refactors AudioTestHarnessImpl to make use of a static factory method for instantiation.
- Adds test to ensure that static factory method returns non-null always.
- Adds TEST_MAPPING to ensure tests are run in Presubmit.

Change-Id: I71c89b30e5ae8be4d677c1189c342a62d0bb444d
Test: Unit Tests in this CL
Bug: 168814242
3 files changed
tree: 61617bcbc436a296f18bc3aab9f15156bd517c2d
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg