Caution
To do meaningful development you have to switch to the Unity fork, as this repository/branch does not contain the tools, test and projects required for development. See Download Sources to learn where to obtain said fork.
glTFast comes with a set of unit and integration tests that ensure the software functions without unexpected errors and certify the correctness of the results. Those tests and the assets they require can be found in the tests package under Packages/com.unity.cloud.gltfast.tests.
Once your project is correctly setup (by either opening one of the provided test projects or following the steps to setup your own project) you'll be able to run all tests via the Test Runner window (under Window → General → Test Runner; see Test Framework documentation for details about running tests).
Passing all tests is a requirement for getting a contribution accepted.
On an unmodified copy of glTFast all tests should pass. Once you start introducing changes it's recommended to periodically check that the tests still pass.
If a test doesn't succeed you'll have to investigate if it revealed a flaw in you modification or the tests itself needs to be adjusted.
If you add new code to glTFast you should also add tests that certify correctness of the new code.
For more information about creating and running tests, consult the documentation of the Unity® Test Framework
Some tests consume glTF™ files or other kinds of test input data. Those test assets can be found in the hidden directory Packages/com.unity.cloud.gltfast.tests/Assets~.
When tests are run in Editor playmode, the test assets are loaded from that location directly.
When tests are run in a player build, GLTFast.Editor.Tests.PreprocessBuild copies all test assets into a directory named gltfast within StreamingAssets, effectively packing the assets with the build and ensuring the files are accessible when the tests are run.
Caution
If you ran the tests in a production project, you need to remove the test folders in StreamingAssets to ensure they don't end up in a production build.
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Khronos® is a registered trademark and glTF™ is a trademark of The Khronos Group Inc.