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Clone this repo:
  1. 0a4c9d5 tast: Include error timestamps in test results. by Daniel Erat · 11 hours ago master
  2. 3b445c4 tast: Move -buildtype to cmd/tast/run and add run.Run. by Daniel Erat · 3 days ago
  3. eb4d352 tast: Move a few flags out of runCmd. by Daniel Erat · 4 days ago
  4. aae63f6 tast: Refactor test-listing code. by Daniel Erat · 6 days ago
  5. ad093d2 tast: Only write control messages when running tests. by Daniel Erat · 6 days ago release-R67-10575.B


Tast is an integration-testing system for Chrome OS. Its focus is on maintainability, speed, and ease of interpreting and reproducing test results. It supports building, deploying, and running tests. It doesn't implement other functionality like managing labs of devices used for testing, scheduling tests, or storing test results.

To try it out, see the quickstart document. The overview is a good starting point for learning more about how the system is structured.

Directory structure

This repository is organized in accordance with the Go in Chromium OS suggestions.

  • src/chromiumos/
    • cmd/local_test_runner/ - main package for the local_test_runner executable used to execute local test bundles on-device.
    • cmd/remote_test_runner/ - main package for the remote_test_runner executable used to execute remote test bundles on the host system.
    • cmd/tast/ - main package for the tast executable used to build and run tests.
      • ... - Packages used only by the tast executable.
    • tast/... - Common packages shared by multiple executables.

Tests are located in the tast-tests repository.


For more details, see the docs subdirectory.