[tests] Delete saved application state before executing test apps. Fixes #25922

[rolfbjarne]

Before and after launching a macOS/Mac Catalyst app in tests, delete its saved
application state directory (~/Library/Saved Application State/<bundle-id>.savedState).
This prevents the "Do you want to try to reopen its windows again?" dialog
from blocking automated test runs after a previous crash.

Two implementations:

• C# (TestBaseClass.cs): The Execute method calls DeleteSavedState before and after running the app. It walks up the executable path to find the .app bundle, reads the bundle identifier from Info.plist, and deletes the saved state directory.
• Makefile (shared-dotnet.mk): A delete-saved-state target reads the bundle identifier via defaults read and removes the saved state directory. The run-bare target invokes it before and after execution.

Fixes #25922

🤖 Pull request created by Copilot

[Copilot]

Pull request overview

This PR hardens macOS/Mac Catalyst test execution by proactively deleting an app’s saved application state directory (~/Library/Saved Application State/<bundle-id>.savedState) before/after launching test apps, preventing the window-restoration relaunch dialog from blocking unattended runs (per #25922).

Changes:

• Add a DeleteSavedState helper in TestBaseClass.Execute and invoke it before/after running the test executable.
• Add a delete-saved-state make target and call it before/after run-bare for macOS/Mac Catalyst runs.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
tests/dotnet/UnitTests/TestBaseClass.cs	Deletes the launched app’s saved state (based on bundle id from Info.plist) around Execute() runs.
tests/common/shared-dotnet.mk	Adds a make target to delete saved state and wires it into run-bare for macOS/Mac Catalyst.

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✅ API diff for current PR / commit

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

✅ API diff vs stable

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

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🚀 [CI Build #087f81a] Test results 🚀

Test results

✅ All tests passed on VSTS: test results.

🎉 All 199 tests passed 🎉

Tests counts

✅ assembly-processing: All 1 tests passed. Html Report (VSDrops) Download
✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. Html Report (VSDrops) Download
✅ introspection: All 4 tests passed. Html Report (VSDrops) Download
✅ linker (iOS): All 15 tests passed. Html Report (VSDrops) Download
✅ linker (MacCatalyst): All 15 tests passed. Html Report (VSDrops) Download
✅ linker (macOS): All 21 tests passed. Html Report (VSDrops) Download
✅ linker (tvOS): All 15 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 18 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 17 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 18 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 18 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ sharpie: All 1 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

macOS tests

✅ Tests on macOS Monterey (12): All 5 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ Tests on macOS Ventura (13): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sonoma (14): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sequoia (15): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Tahoe (26): All 5 tests passed. Html Report (VSDrops) Download

Linux Build Verification

✅ Linux build succeeded

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Hash: 087f81a35a4f71acb83781e145dcac38a26b5908 [PR build]