XCTest Nightly: two panel-fixture tests find no Button on the CI runtime
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 3/5
- 预计耗时
- 1-2 天
- 新手友好度
- 62/100
- Issue 类型
- 缺陷
- 描述清晰度
- 描述清楚
- 活跃度
- 活跃
- 技术栈
- ios, typescript
调研方向
Start with RunnerRequestPanelTests.swift:84 and inspect the panel fixture and waits used by RunnerTests.testLitPanelBookingAndCoordinateFallbackShareScreenPointsForPartialWindows and RunnerTests.testPlacedIPadWindowDispatchUsesTheMeasuredSoleDisplay. Reproduce the missing Button on the iOS 26.2 CI runtime and compare it with iOS 27.1 locally to identify whether layout, timing, or runtime behavior differs. Done means both tests pass in the XCTest Nightly iPhone full suite and on a current runtime, without skipping either.
由索引模型根据 Issue 内容生成。
描述
Purpose
XCTest Nightly fails on two panel-fixture tests, separately from #4212. They failed on 2026-11-05 and again on 2026-11-06 (run 42163259459).
Current behavior
Both tests fail at the same fixture step:
RunnerTests.testLitPanelBookingAndCoordinateFallbackShareScreenPointsForPartialWindowsRunnerTests.testPlacedIPadWindowDispatchUsesTheMeasuredSoleDisplay
They fail at RunnerRequestPanelTests.swift:84 with No matches found for Descendants matching type Button: the panel fixture's button isn't found.
Both pass locally on an iPhone Air simulator with iOS 27.1. CI's nightly runs iOS 26.2. That points to a fixture or layout difference on iOS 26.2 rather than to the lit-panel logic, but this is unconfirmed.
Required behavior
- Find out why the panel fixture's button is missing on the CI runtime: the fixture's layout, a timing wait, or a runtime difference.
- Fix the fixture or the wait so both tests pass on iOS 26.2 and on current runtimes. Don't skip either test.
Completion conditions
- Both tests pass in the XCTest Nightly iPhone full suite.
- Both still pass on a current runtime locally.
Dependencies
None. #4212 fixes the other nightly failure; once both land, XCTest Nightly should be green.
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