[tests] Cover NSCoding generic registrar signatures. Fixes #21256

[rolfbjarne]

Fixes the issue where NSCoding generic bindings cause linker-cache compile errors in device builds.

Adds registrar binding coverage for NSDictionary<NSString, NSCoding> method and property signatures.

Fixes #21256.

🤖 Pull request created by Copilot

[Copilot]

Pull request overview

This PR updates the bindings-test fixture bindings to add registrar coverage for NSDictionary<NSString, NSCoding> in both method and property signatures, targeting the device-build registrar/header generation failure described in #21256.

Changes:

• Add NSDictionary<NSString, NSCoding> getter/setter method signatures to the registrar test interface.
• Add a NSDictionary<NSString, NSCoding> property to broaden coverage of generic NSCoding dictionary signatures.

Suppressed comments (1)

tests/bindings-test/ApiDefinition.cs:261

• ⚠️ The new NSCoding dictionary property is currently non-nullable; the real-world signature in #21256 is nullable, and other test properties here are marked [NullAllowed] when they can be nil. Marking this one [NullAllowed] would better cover the problematic registrar output.

		[Export ("nscodingSessionDictionary")]
		NSDictionary<NSString, NSCoding> NSCodingSessionDictionary { get; set; }

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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: d67f4bb4ab13c2349552e6235370621f352b03e0 [PR build]

[vs-mobiletools-engineering-service2]

🔥 [CI Build #d67f4bb] Test results 🔥

Test results

❌ Tests failed on VSTS: test results

0 tests crashed, 62 tests failed, 143 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.DotNetProjectTest.PublishAotMonoTouchTest_NoIL2009...: 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-10.0.400-...

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.DotNetProjectTest.PublishAotMonoTouchTest_NoIL2009...: 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-10.0.400-...

Html Report (VSDrops) Download

❌ dotnettests tests (macOS)

1 tests failed, 0 tests passed.

Failed tests

• DotNet tests: Failed (Execution failed with exit code 1)
  • Xamarin.Tests.DotNetProjectTest.PublishAotMonoTouchTest_NoIL2009...: 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-10.0.400-...

Html Report (VSDrops) Download

❌ dotnettests tests (tvOS)

1 tests failed, 0 tests passed.

Failed tests

• DotNet tests: Failed (Execution failed with exit code 1)
  • Xamarin.Tests.DotNetProjectTest.PublishAotMonoTouchTest_NoIL2009...: 'dotnet build' failed with exit code 1
    Full command: /Users/cloudtest/vss/_work/1/s/macios/builds/downloads/dotnet-sdk-10.0.400-...

Html Report (VSDrops) Download

❌ linker tests (MacCatalyst)

3 tests failed, 12 tests passed.

Failed tests

• link sdk/Mac Catalyst/Release: BuildFailure
• link all/Mac Catalyst/Release: BuildFailure
• trimmode link/Mac Catalyst/Release: BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))

Html Report (VSDrops) Download

❌ linker tests (macOS)

7 tests failed, 14 tests passed.

Failed tests

• link sdk/macOS/Debug (PrepareAssemblies, CoreCLR, Trimmable Static Registrar): BuildFailure
• link sdk/macOS/Release: BuildFailure
• link sdk/macOS/Release (PrepareAssemblies, CoreCLR, Trimmable Static Registrar): BuildFailure
• link all/macOS/Debug (PrepareAssemblies, CoreCLR, Trimmable Static Registrar): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• link all/macOS/Release: BuildFailure
• link all/macOS/Release (PrepareAssemblies, CoreCLR, Trimmable Static Registrar): BuildFailure
• trimmode link/macOS/Release: BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))

Html Report (VSDrops) Download

❌ monotouch tests (iOS)

8 tests failed, 11 tests passed.

Failed tests

• monotouch-test/iOS - simulator/Debug (static registrar): BuildFailure
• monotouch-test/iOS - simulator/Release (all optimizations): BuildFailure
• monotouch-test/iOS - simulator/Release (NativeAOT): BuildFailure
• monotouch-test/iOS - simulator/Release (trimmable static registrar, NativeAOT): BuildFailure
• monotouch-test/iOS - simulator/Debug (managed static registrar): BuildFailure
• monotouch-test/iOS - simulator/Release (managed static registrar, all optimizations): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/iOS - simulator/Release (strict inline Class.GetHandle): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/iOS - simulator/Release (NativeAOT, .NET 11 defaults): BuildFailure

Html Report (VSDrops) Download

❌ monotouch tests (MacCatalyst)

14 tests failed, 4 tests passed.

Failed tests

• monotouch-test/Mac Catalyst/Release (link sdk): BuildFailure
• monotouch-test/Mac Catalyst/Release (link all): BuildFailure
• monotouch-test/Mac Catalyst/Debug (managed static registrar): BuildFailure
• monotouch-test/Mac Catalyst/Debug (static registrar): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/Mac Catalyst/Release (managed static registrar): BuildFailure
• monotouch-test/Mac Catalyst/Release (managed static registrar, all optimizations): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/Mac Catalyst/Release (NativeAOT): BuildFailure
• monotouch-test/Mac Catalyst/Release (NativeAOT, .NET 11 defaults): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/Mac Catalyst/Release (trimmable static registrar, NativeAOT): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/Mac Catalyst/Release (static registrar): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/Mac Catalyst/Release (static registrar, all optimizations): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/Mac Catalyst/Release (interpreter): BuildFailure
• monotouch-test/Mac Catalyst/Release (compat inline dlfcn): BuildFailure
• monotouch-test/Mac Catalyst/Release (strict inline dlfcn, link sdk): BuildFailure

Html Report (VSDrops) Download

❌ monotouch tests (macOS)

18 tests failed, 3 tests passed.

Failed tests

• monotouch-test/macOS/Release (link sdk): BuildFailure
• monotouch-test/macOS/Release (link all): BuildFailure
• monotouch-test/macOS/Debug (PrepareAssemblies, Trimmable Static Registrar, link sdk): BuildFailure
• monotouch-test/macOS/Debug (managed static registrar): BuildFailure
• monotouch-test/macOS/Debug (trimmable static registrar): BuildFailure
• monotouch-test/macOS/Debug (static registrar): BuildFailure
• monotouch-test/macOS/Release (managed static registrar): BuildFailure
• monotouch-test/macOS/Release (trimmable static registrar): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/macOS/Release (managed static registrar, all optimizations): BuildFailure
• monotouch-test/macOS/Debug (trimmable static registrar, all optimizations): BuildFailure
• monotouch-test/macOS/Release (trimmable static registrar, all optimizations): BuildFailure
• monotouch-test/macOS/Release (NativeAOT): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/macOS/Release (NativeAOT, .NET 11 defaults): BuildFailure
• monotouch-test/macOS/Release (trimmable static registrar, NativeAOT): BuildFailure
• monotouch-test/macOS/Release (static registrar): BuildFailure
• monotouch-test/macOS/Release (static registrar, all optimizations): BuildFailure
• monotouch-test/macOS/Release (compat inline dlfcn): BuildFailure ( (failed to parse the logs: The Writer is closed or in error state.))
• monotouch-test/macOS/Release (strict inline dlfcn, link sdk): BuildFailure

Html Report (VSDrops) Download

❌ monotouch tests (tvOS)

8 tests failed, 11 tests passed.

Failed tests

• monotouch-test/tvOS - simulator/Debug (static registrar): BuildFailure
• monotouch-test/tvOS - simulator/Release (all optimizations): BuildFailure
• monotouch-test/tvOS - simulator/Release (NativeAOT): BuildFailure
• monotouch-test/tvOS - simulator/Release (trimmable static registrar, NativeAOT): BuildFailure
• monotouch-test/tvOS - simulator/Debug (managed static registrar): BuildFailure
• monotouch-test/tvOS - simulator/Release (managed static registrar, all optimizations): BuildFailure
• monotouch-test/tvOS - simulator/Release (strict inline Class.GetHandle): BuildFailure
• monotouch-test/tvOS - simulator/Release (NativeAOT, .NET 11 defaults): BuildFailure

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 (Multiple platforms): 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 (tvOS): All 15 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. 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

Pipeline on Agent
Hash: d67f4bb4ab13c2349552e6235370621f352b03e0 [PR build]

[rolfbjarne]

Trying another approach.