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dawn / dawn / a5c36a764c64c80d3b846403a5f444b18219f274
commita5c36a764c64c80d3b846403a5f444b18219f274[log] [tgz]
authorBrian Sheedy <bsheedy@google.com>Tue Jan 28 11:07:28 2025 -0800
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Jan 28 11:07:28 2025 -0800
tree6079314eb5460baadbe86a5ccbc6ab573f001578
parent5af4417e9cf1d192f2daba968da7aac91dc8873c [diff]
[tools][cts] Add test coverage loss command

Adds the expectation-coverage command to "tools/run cts". This grabs
recent unique config/test name combinations from CI builders that are
affected by expectations in some way and figures out which expectations
are suppressing failures in tests. This information is then surfaced to
the user ordered by which chunks of expectations are affecting the most
tests, which can be used to prioritize fixes in order to get test
coverage back.

By default, the command will run:
  - Against the core expectations file
  - Include temporary Skip expectations
  - Group expectations by the whitespace-delineated chunks as they
    appear in the file
  - Only surface the top 25 chunks contributing to test coverage loss

However, command line flags exist to change behavior to any of the
following:
  - Run against the compat expectations file
  - Exclude temporary Skip expectations
  - Check for coverage loss on a per-expectation basis
  - Surface the top X chunks/individual expectations contributing to
    test coverage loss (or surface all results)

Bug: 390105593
Change-Id: Ifabfedc3baa7a8950ddf4f05a4d03486ed27e30b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/223335
Auto-Submit: Brian Sheedy <bsheedy@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@google.com>
14 files changed
tree: 6079314eb5460baadbe86a5ccbc6ab573f001578
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-tidy
  20. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gitmodules
  24. .gn
  25. AUTHORS
  26. BUILD.bazel
  27. BUILD.gn
  28. CMakeLists.txt
  29. CMakeSettings.json
  30. CODE_OF_CONDUCT.md
  31. codereview.settings
  32. CONTRIBUTING.md
  33. CPPLINT.cfg
  34. DEPS
  35. DIR_METADATA
  36. go.mod
  37. go.sum
  38. go_presubmit_support.py
  39. LICENSE
  40. OWNERS
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. WATCHLISTS
  45. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.