[tests] Re-enable MAUI tests now that MAUI supports .NET 11.

[rolfbjarne]

Fixes #24416

[Copilot]

Pull request overview

This PR re-enables previously disabled MAUI-related unit tests in tests/dotnet/UnitTests, based on the assumption that MAUI now loads correctly for .NET 11-targeting projects (per #24416).

Changes:

• Removed the [Ignore] attribute from BuildMauiApp test cases.
• Removed the [Ignore] attribute from BuildMauiAppWithDeviceSpecificBuilds test cases.

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[vs-mobiletools-engineering-service2]

✅ 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)

Pipeline on Agent
Hash: 803958d4ff9fc977203d45bf87d134dd28a18a3c [PR build]

[vs-mobiletools-engineering-service2]

🔥 [CI Build #803958d] Test results 🔥

Test results

❌ Tests failed on VSTS: test results

0 tests crashed, 2 tests failed, 258 tests passed.

Failures

❌ dotnettests tests (iOS)

1 tests failed, 0 tests passed.

Failed tests

• DotNet tests: Failed (Execution failed with exit code 1)
  • Xamarin.Tests.MauiTest.BuildMauiApp(iOS,"ios-arm64"): 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-11.0.100-...

Html Report (VSDrops) Download

❌ dotnettests tests (MacCatalyst)

1 tests failed, 0 tests passed.

Failed tests

• DotNet tests: Failed (Execution failed with exit code 1)
  • Xamarin.Tests.MauiTest.BuildMauiApp(MacCatalyst,"maccatalyst-arm...: 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-11.0.100-...
  • Xamarin.Tests.MauiTest.BuildMauiAppWithDeviceSpecificBuilds(MacC...: 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-11.0.100-...

Html Report (VSDrops) Download

Successes

✅ assembly-processing: All 1 tests passed. Html Report (VSDrops) Download
✅ cecil: 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 7 tests passed. Html Report (VSDrops) Download
✅ linker (iOS): All 31 tests passed. Html Report (VSDrops) Download
✅ linker (MacCatalyst): All 31 tests passed. Html Report (VSDrops) Download
✅ linker (macOS): All 21 tests passed. Html Report (VSDrops) Download
✅ linker (tvOS): All 31 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 24 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 24 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 19 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 24 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 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

Pipeline on Agent
Hash: 803958d4ff9fc977203d45bf87d134dd28a18a3c [PR build]