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flutter/dev/tracing_tests
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Greg Spencer ab2b0851a2
Add smoke tests for all the examples, fix 17 broken examples. (#89021) 
This adds a smoke test for every single API example. It also fixes 17 tests that had bugs in them, or were otherwise broken, and even fixes one actual bug in the framework, and one limitation in the framework.

The bug in the framework is that NetworkImage's _loadAsync method had await response.drain<List<int>>();, but if the response is null, it will throw a cryptic exception saying that Null can't be assigned to List<int>. The fix was just to use await response.drain<void>(); instead.

The limitation is that RelativePositionedTransition takes an Animation<Rect> rect parameter, and if you want to use a RectTween with it, the value emitted there is Rect?, and one of the examples was just casting from Animation<Rect> to Animation<Rect?>, which is invalid, so I modified RelativePositionedTransition to take a Rect? and just use Rect.zero if the rect is null.
2021-09-28 09:32:06 -07:00
..
test Reuse a TimelineTask for the scheduler frame and animate events (#90168) 2021-09-17 10:07:06 -07:00
pubspec.yaml Add smoke tests for all the examples, fix 17 broken examples. (#89021) 2021-09-28 09:32:06 -07:00
README.md Take DPR into account for image inversion (#88309) 2021-08-16 15:35:10 -07:00

README.md

Tracing tests

The tests in this folder must be run with flutter test --enable-vmservice, since they test that trace data is written to the timeline by connecting to the observatory.

These tests will fail if run without this flag.