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  1. 847704e tast: Validate control message ordering. by Daniel Erat · 6 days ago master
  2. 113ea40 tast: Enforce timeouts when reading control messages. by Daniel Erat · 13 days ago factory-coral-10122.B
  3. 3d57dfe tast: Make run.readTestOutput take Config struct. by Daniel Erat · 13 days ago
  4. 4453534 tast: Add testing.Test.Timeout field. by Daniel Erat · 3 weeks ago
  5. f4e1354 tast: Add testutil.TempDir. by Daniel Erat · 4 weeks ago firmware-coral-10068.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/tast/
    • cmd/ - main package for the tast executable used to build and run tests.
      • ... - Packages used only by the tast executable.
    • common/ - Packages shared between some combination of tast/ and local/ and remote/ from the tast-tests repository.

Tests are located in the tast-tests repository.


For more details, see the docs subdirectory.

Package documentation is available at