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Pekka Paalanen authored
Add tests that ensure that wayland-scanner output for a given input does not change unexpectedly. This makes it very easy to review wayland-scanner patches. Before, when patches were proposed for wayland-scanner, I had to build wayland without the patches, save the generated files into a temporary directory, apply the patches, build again, and diff the old vs. new generated file. No more. Now whenever someone makes intentional changes to wayland-scanner's output, he will also have to patch the example output files to match. That means that reviewers see the diff of the generated files straight from the patch itself. Verifying the diff is true is as easy as 'make check'. The tests use separate example XML files instead of wayland.xml directly, so that wayland.xml can be updated without fixing scanner tests, avoiding the churn. example.xml starts as a copy of wayland.xml. If wayland.xml starts using new wayland-scanner features, they should be copied into example.xml again to be...
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