Hajime Hoshi 67441c4823 internal/testing: avoid os.Exit(0) ... os.Exit(0) might cause test flakiness. https://github.com/hajimehoshi/ebiten/actions/runs/10650734256/job/29522689113 ``` panic: unexpected call to os.Exit(0) during test goroutine 1 [running]: os.Exit(0x0) /opt/hostedtoolcache/go/1.23.0/x64/src/os/proc.go:67 +0x8 github.com/hajimehoshi/ebiten/v2/internal/testing.MainWithRunLoop(0x19b28c0) /home/runner/work/ebiten/ebiten/internal/testing/testing.go:50 +0xa github.com/hajimehoshi/ebiten/v2/internal/graphicscommand_test.TestMain(...) /home/runner/work/ebiten/ebiten/internal/graphicscommand/image_test.go:42 main.main() _testmain.go:55 +0x5 ```		2024-09-01 13:31:40 +09:00
..
shader.go
testing.go	internal/testing: avoid os.Exit(0)	2024-09-01 13:31:40 +09:00