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b82e9022a3
Fixes https://github.com/flutter/flutter/issues/161262 Sometimes we end up with clip replay entities that have clip depth values substantially below the current depth. I suspect this is due to either mismatched save/restore or a bug in our code. Update: this isn't a bug/bug but its definitely a bug. We can have multiple clips per save, but the restore will remove at most one from the record/replay. If a clip has a depth value that is less than the current clip depth, it cannot by definition impact anything that draws after it.
Engine Testing
This directory contains the infrastructure for running tests on the engine, which are most often run by Flutter's continuous integration (CI) systems.
The tests themselves are located in other directories, closer to the source for
each platform, language, and variant. For instance, macOS engine unit tests
written in objective C are located in the same directory as the source files,
but with a Test suffix added (e.g. "FlutterEngineTest.mm" holds the tests for
"FlutterEngine.mm", and they are located in the same directory).
Testing the Engine locally
If you are working on the engine, you will want to be able to run tests locally.
In order to learn the details of how do that, please consult the Flutter Wiki page on the subject.