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The five Android runtime-test shards each start their own emulator but wrote its log under the same name in the shared results artifact, so the shards overwrote each other and only one log survived. When an emulator dropped mid-run, its log was usually gone. Name the file after the test group, as the device logs already are. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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GitHub Issue: refs unoplatform/uno-private#2538
PR Type:
🏗️ Build or CI related changes
What changed? 🚀
TL;DR — Each Android runtime-test shard now keeps its own emulator log. Today the five shards overwrite each other's, so when an emulator drops mid-run its log is usually gone, and we can't tell why it dropped.
Why. From 6 to 10 Nov, 25 Android runtime-test jobs failed because the emulator dropped, about 2% of the plain Android and Android WebGPU jobs. adb exits with 255 three to seven minutes into the test step, before any test runs, and the device log just stops after boot. There have been none since the evening of 10 Nov, and nothing in the emulator scripts changed, so the cause is still unknown.
The emulator log is the one place it would show. Each shard writes it to
android-emulator-log-$UNO_UITEST_BUCKET_ID-$UITEST_TEST_MODE_NAME.txt, with no shard number, into the same results artifact. In build 245277, shard 2 dropped, but the emulator log the artifact kept ended normally: it came from a different shard.How. Add
$UITEST_RUNTIME_TEST_GROUPto the file name, the way the device logs and screenshots in the same script are already named. The variable is set at the top of the script (defaulting toautomated), so the name is never empty. Nothing else reads this file by name. The UI-test script (android-uitest-run.sh) names its emulator log the same way; I haven't checked whether that one collides, so it's left alone here.PR Checklist ✅
Screenshots Compare Test Runresults.🤖 Generated with Claude Code