When upgrading Flutter from 3.13.9 to 3.16.9, some of our golden tests started launching timeout errors. We're using golden_toolkit 0.15.0, the latest version available. So latest Flutter version + latest golden_toolkit version.
After checking what was happening, we saw our call to await tester.multiScreenGoldenMatcher() lasted forever. Going deeper, we found the call that hanged the whole test was tester.waitForAssets().
Fixed it!
The issue was related to using flutter_svg_provider 1.0.4. I wasn't able to update to 1.0.7 because I had a dependency that used http 0.13.6 while flutter_svg_provider 1.0.7 used http 1.1.2.
What I had to do is to use flutter_svg_provider 1.0.7 and override the version of http to 0.13.6.
To do that, I set in my pubspec.yaml:
dependency_overrides:
http: ^0.13.6