commit | b5a2b1e1b0bd51817dca49b49eb3e8825833b216 | [log] [tgz] |
---|---|---|
author | Myles C. Maxfield <mmaxfield@apple.com> | Tue Apr 25 19:35:45 2023 |
committer | GitHub <noreply@github.com> | Tue Apr 25 19:35:45 2023 |
tree | 0b8a694d0005f243eb173e47f60a50175cc37024 | |
parent | 47704ba55e81f596038cf181e4e8b5ae463259de [diff] |
[Shape Detection] Add end-to-end tests for the shape detection API (#39659) There are already some shape detection WPT tests, but they: 1. Mock the actual browser behavior 2. Only work in Chrome if you run it with a flag 3. Don't actually work if you actually try to run them, even in Chrome: https://wpt.live/shape-detection/detection-HTMLImageElement.https.html reports a harness error "Can't create duplicate variable" Web platform tests are, in general, end-to-end tests, and usually don't mock out the browser functionality. (See the WebGL & WebGPU tests for examples: they don't mock out the use of the GPU). So it's a good idea to have end-to-end tests. The images the tests use for detection are designed to be: 1. Clear enough so that any reasonable implementation of the API should be able to detect successfully in them 2. Fuzzy enough so that it's okay if the detection is off by some pixels here and some pixels there
The web-platform-tests Project is a cross-browser test suite for the Web-platform stack. Writing tests in a way that allows them to be run in all browsers gives browser projects confidence that they are shipping software that is compatible with other implementations, and that later implementations will be compatible with their implementations. This in turn gives Web authors/developers confidence that they can actually rely on the Web platform to deliver on the promise of working across browsers and devices without needing extra layers of abstraction to paper over the gaps left by specification editors and implementors.
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See the documentation website and in particular the system setup for running tests locally.
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