Add EvsManager null check to tearDown()

If CarEvsService is not enable on the device under test, it breaks an
assumption in CarEvsManagerTest::setUp() and therefore the test executor
calls tearDown() method with a null EvsManager reference.
CarEvsManagerTest::tearDown() requests EvsManager to stop a video stream
and fails to invoke a method because of null EvsManager reference.

To fix this issue, this CL add a null check before invoking a
CarEvsManager method in tearDown().

Fix: 191192986
Test: Run 'atest CarEvsManagerTest -c' and confirm all test results are
      assumption failed on Seahawk.
Change-Id: Ib21e13ebfd646a65e8e207d3f809674a6f96b6c2
1 file changed
tree: 7956257b81663982fa723a1440ae4d359e5b98e0
  1. car-admin-ui-lib/
  2. car-internal-lib/
  3. car-lib/
  4. car-maps-placeholder/
  5. car-systemtest-lib/
  6. car-test-lib/
  7. car-usb-handler/
  8. car_product/
  9. cpp/
  10. data/
  11. experimental/
  12. FrameworkPackageStubs/
  13. obd2-lib/
  14. packages/
  15. procfs-inspector/
  16. service/
  17. tests/
  18. tools/
  19. user/
  20. vehicle-hal-support-lib/
  21. .clang-format
  22. .gitignore
  23. Android.mk
  24. CleanSpec.mk
  25. CPPLINT.cfg
  26. OWNERS
  27. PREUPLOAD.cfg
  28. README.md
  29. TEST_MAPPING
README.md

Native (C++) code format is required to be compatible with .clang-format file. Run

git clang-format --style=file --extension='h,cpp,cc' HEAD~

Note that clang-format is not desirable for Android java files. Therefore the command line above is limited to specific extensions.