handleVersionUpdateForTest method
Test-only seam: deliver a VersionUpdateInfo to the version-update handler without driving the real (platform-coupled) AppVersionUpdateService.
Exercises the required / recommended / none branches and the version-now-valid sticky-guard-exempt exit (Issue 114).
Implementation
@visibleForTesting
void handleVersionUpdateForTest(VersionUpdateInfo updateInfo) =>
_handleVersionUpdate(updateInfo);