Retry transient DynamicDependency Elevated bootstrap flake in Foundation test pass (AB#63230809) - #6730
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Retry transient DynamicDependency Elevated bootstrap flake in Foundation test pass (AB#63230809)#6730v-arlysenko wants to merge 5 commits into
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…pass (AB#63230809) DynamicDependency Elevated bootstrap tests intermittently fail on Win10 19044/19045 with MddBootstrapInitialize 0x80270254. Add an opt-in, targeted rerun-on-failure to the shared foundation test path so a transient failure is retried and reported as unreliable instead of failing the PR/official run, without masking genuine regressions. - TestAll.ps1: testdefs may set MaxReruns; a failing TAEF testdef is rerun up to that many times into separate rerun logs (Te.rerun1/2/3.wtl). - DynamicDependency Win32/WinRT testdefs opt in with MaxReruns: 3. - WindowsAppSDK-RunTests-Steps.yml: pass the rerun logs plus useRetryLogic=true and requiredPassRateThreshold=1 to ConvertWttLogToXUnit so failed-then-passed tests are marked unreliable (skipped), while tests that fail every attempt still fail.
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agniuks
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Sep 1, 2026
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Summary
DynamicDependency Elevated bootstrap tests intermittently fail on Win10 19044/19045 with
MddBootstrapInitialize 0x80270254. This adds an opt-in, targeted rerun-on-failure to the shared Foundation test path, so a transient failure is retried and reported as unreliable instead of failing the PR/official run — without masking genuine regressions.What changed
MaxReruns; a failing TAEF testdef is rerun up to that many times into separate rerun logs (Te.rerun1/2/3.wtl).MaxRerunsis validated and clamped to a safe range when read (PR-feedback follow-up).MaxReruns: 3.useRetryLogic: trueandrequiredPassRateThreshold: 1toConvertWttLogToXUnit, so a failed-then-passed test is marked unreliable (skipped), while a test that fails every attempt still fails the run.Why
Retry is scoped strictly to the two DynamicDependency testdefs via opt-in
MaxReruns; all other tests keep single-attempt behavior. This unblocks Foundation PR/official runs from the known transient bootstrap flake while preserving regression detection.Work item
AB#63230809 — WinAppSDK Foundation tests: DynamicDependency Elevated bootstrap flake on Win10 19044/19045 (MddBootstrapInitialize 0x80270254).