Enable python tests to output results in a file

Add an option to the Python test runner that enables tests to write
their results to an output file instead of stderr. This makes result
parsing more resiliant to spurious messages that appear on stderr but
requires the test to support it.

Test: m tradefed tradefed-tests && ./tests/run_tradefed_tests.sh
Bug: 152079202
Change-Id: I3f4b51615a50e8c13004a4bd059695e9df2af55b
2 files changed
tree: fcaced84f19059c2d4e8b9845e370c98cef9fa78
  1. atest/
  2. clearcut_client/
  3. common_util/
  4. device_build_interfaces/
  5. global_configuration/
  6. invocation_interfaces/
  7. isolation/
  8. lite/
  9. proto/
  10. python-lib/
  11. remote/
  12. res/
  13. src/
  14. test_framework/
  15. test_result_interfaces/
  16. tests/
  17. util-apps/
  18. .classpath
  19. .gitignore
  20. .project
  21. Android.bp
  22. Android.mk
  23. atest_tradefed.sh
  24. CleanSpec.mk
  25. error_prone_rules.mk
  26. MANIFEST.mf
  27. OWNERS
  28. PREUPLOAD.cfg
  29. pylintrc
  30. README.md
  31. run_tf_cmd.sh
  32. script_help.sh
  33. TEST_MAPPING
  34. tradefed.sh
  35. tradefed_win.bat
README.md

Trade Federation (TF / Tradefed)

TF is a test harness used to drive Android automated testing. It runs on test hosts and monitors the connected devices, handling test scheduling & execution and device management.

Other test harnesses like Compatibility Test Suite (CTS) and Vendor Test Suite (VTS) use TF as a basis and extend it for their particular needs.

Building TF:

  • source build/envsetup.sh
  • tapas tradefed-all
  • make -j8

More information at: https://source.android.com/devices/tech/test_infra/tradefed/

See more details about Tradefed Architecture at: https://source.android.com/devices/tech/test_infra/tradefed/architecture

If you are a tests writer you should start looking in the test_framework/ component which contains everything needed to write a tests in Tradefed.