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Enable WinUI tests#2487

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Enable WinUI tests#2487
manodasanW wants to merge 48 commits into
staging/3.0from
manodasanw/winuitest

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@manodasanW

@manodasanW manodasanW commented Jul 20, 2026

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  • Enabling the WinUI tests in our repo with workarounds
  • The various workarounds I am doing will be addressed as part of WinUI package changes.
  • Also fixing a couple issues that were noticed while enabling these tests:
  • Fixing incremental builds by having a hashed file which we use to determine if the inputs changed rather than just based on the cs files that are generated. Previously we had no inputs, so the cs files always got generated and were detected as changed.
  • Fixing winmd generation in authoring scenarios to not rely on attributes in the projection to emit the type references for like base types to dependent winmds but rather look at the winmds themselves to determine which is the correct one to emit the type reference. This allows for the attribute we had previously in the ref projection to be removed.
  • Fix issue with ObservableDictionary where the impl was not tracked.

manodasanW and others added 30 commits July 3, 2026 22:25
@manodasanW
Fix spurious rebuilds and projection generation churn in dev/IDE builds
224909b 
- Make CsWinRTGenerateProjection incremental (Inputs/Outputs + property-hash
  cache) so projection sources are only regenerated when inputs actually
  change. This stops design-time builds from repeatedly deleting/regenerating
  the C# projection sources, which caused an intermittent CS2001
  "source file could not be found" race with a concurrent real build and a
  continuous design-time build file-watcher loop.
- Bump Microsoft.SourceLink.GitHub 8.0.0 -> 10.0.109 to align with the .NET 10
  SDK. SourceLink 10.x queries source control during design-time builds too, so
  design-time and real builds compute the same AssemblyInformationalVersion and
  no longer invalidate each other's GenerateAssemblyInfo cache (which forced
  CoreCompile to run on every build).
- Bump the build SDK 10.0.106 -> 10.0.109 in CI (_DotnetVersion) and build.cmd.
- Move the Microsoft.DiaSymReader.Pdb2Pdb PackageReference from
  Directory.Build.targets to Directory.Build.props.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Enable WUX authoring tests and fix WUX native-hosting projection gene…
cd9dc76 
…ration

- Enable AuthoringWuxTest, AuthoringWuxConsumptionTest, and AuthoringWinUITest
  in the solution (build x64/x86; ARM/ARM64 gated off).
- Target AuthoringWuxTest at net10.0-windows10.0.26100.1 (a Windows TFM) so the
  native-consumer aggregator produces WinRT.Component.dll; update the consumer's
  reference TFM and winmd path accordingly.
- Port AuthoringWuxConsumptionTest to CsWinRT 3.0 (WinRT.Runtime2, Windows.UI.Xaml
  projection reference, native JIT-host targets import).
- Flow the UWP-XAML (Windows.UI.Xaml) flavor from a component to the native
  consumer's synthesized aggregator via CsWinRTComponentUseWindowsUIXamlProjections
  metadata, and pass WindowsUIXamlProjection to the component projection generator.
- Don't put the component projection generator into Windows SDK mode when
  WindowsUIXamlProjection is set (it would re-emit the SDK Windows.UI.Xaml namespace).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Port AuthoringWinUITest to CsWinRT 3.0
29bb315 
Update the WinUI native-hosting authoring test (vcxproj) and its packaging
project (wapproj) for CsWinRT 3.0, mirroring the AuthoringConsumptionTest
pattern:

- vcxproj: reference WinRT.Runtime2, point AuthoringTest winmd HintPath at the
  net10.0-windows10.0.26100.1\win-$(Platform) output, pin the AuthoringTest
  ProjectReference to the Windows TFM, and import the CsWinRT native JIT-host
  targets.
- wapproj: update the packaged AuthoringTest.dll content path to the new
  net10.0-windows10.0.26100.1\win-$(Platform) output location.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Fix AuthoringWinUITest CS1069 by building AuthoringTest for native co…
c219f18 
…nsumption

AuthoringWinUITest is a WinUI (packaged) native JIT host. Its build chain propagates a
RuntimeIdentifier (win-x64) to its managed project references. A plain RID build of a
CsWinRT 3.0 component resolves the reference-projection dependencies (Windows.csproj /
WinAppSDK.csproj) to their forwarder assemblies (the primary TargetPath) rather than the
reference assemblies, because RID builds do not use reference assemblies for compilation.
The forwarders only type-forward to WinRT.Projection / WinRT.Sdk.Projection (generated at
app build time), so the component fails to compile with CS1069 ("...forwarded to
WinRT.Projection...") and CS0234 (Windows.Foundation.Metadata attributes).

Diagnosed from the devenv binlog: AuthoringTest.csproj was compiled twice - once correctly
(reference assemblies) and once via the vcxproj's ProjectReference against the forwarders
(bin\), which failed. AuthoringConsumptionTest never hits this because it only exercises JIT
consumption in non-(Release|x64) configs and AOTs in Release|x64.

Fix: build the AuthoringTest ProjectReference with CsWinRTBuildForNativeConsumer=true (the
same mode the native JIT-host aggregator uses), so the component generates and references its
own merged WinRT.Projection / WinRT.Sdk.Projection instead of the reference-projection
forwarders. This also aligns the direct ProjectReference build with the aggregator build,
eliminating the conflicting double-build.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Apply CsWinRT reference-projection ReferenceAssembly redirect on GetT…
8dd9b30 
…argetPathWithTargetPlatformMoniker

Root cause (comparing devenv binlogs 68=AuthoringWinUITest/fail vs 120=AuthoringConsumptionTest/ok):
AuthoringTest compiles fine (reference assembly, obj\) when resolved through the standard managed
ProjectReference protocol (GetTargetPath). But AuthoringWinUITest is a WinUI/native host; its vcxproj
resolves the reference projections (Windows/WinAppSDK) through GetTargetPathWithTargetPlatformMoniker
directly (native/cross-TFM resolution). CsWinRT's existing redirect
(CsWinRTGetForwarderTargetPathWithTargetPlatformMoniker) only augments the item via BeforeTargets=GetTargetPath,
so that path never gets %(ReferenceAssembly). MSBuild then caches the un-redirected result for the project
instance, and the managed component (AuthoringTest) reuses it, compiling against the forwarder (the primary
TargetPath) and failing with CS1069 ('...forwarded to WinRT.Projection...'). Because that failure happens during
reference resolution (before Link), the native JIT-host aggregator (BeforeTargets=Link, which produces
WinRT.Component.dll) never runs - matching the observed missing WinRT.Component.dll.

Fix: override the SDK's GetTargetPathWithTargetPlatformMoniker for reference projections so the item carries
%(ReferenceAssembly) (pointing at the reference assembly with the real type definitions) on that path too. Body
is identical to the SDK's, with the extra metadata applied only when CsWinRTGenerateReferenceProjection=true;
non-reference-projection builds are unaffected. Avoids ProduceReferenceAssembly/TargetRefPath (which would engage
the compiler ref-assembly pipeline and conflict with ProduceOnlyReferenceAssembly - CS8308/MSB4044).

Also reverts the earlier AuthoringWinUITest.vcxproj CsWinRTBuildForNativeConsumer workaround, which addressed the
wrong layer.

Verified: GetTargetPathWithTargetPlatformMoniker now returns ReferenceAssembly=obj\...\Microsoft.WinUI.dll;
WinAppSDK reference projection rebuilds clean (defs intact); AuthoringWinUITest project references build clean.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Enable AuthoringWinUITest 3.0 packaging/runtime and re-enable WUX con…
40592e9 
…sumption test

- vcxproj: fix AuthoringTest winmd HintPath to the actual output folder (drop the
  non-existent win-$(Platform) RID subfolder) so incremental builds don't feed midlrt
  two winmd paths (MIDL1002); remove the stale checked-in WinRT.Host.runtimeconfig.json
  (now auto-generated) that caused APPX1111.
- wapproj: fix AuthoringTest.dll Content path (drop win-$(Platform)) so packaging
  doesn't fail with MSB3030.
- native targets: deploy the generated hosting bundle (WinRT.Component/Interop/
  Projection/Sdk.Projection) into packaged (wapproj/MSIX) consumers by adding it to
  ReferenceCopyLocalPaths via DesktopBridgeCopyLocalOutputGroup, so activation can
  resolve WinRT.Component.
- Directory.Build.targets: restrict the XAML markup compiler references to winmds for
  MarkupCompilePass1 (workaround for WMC1006 until fixed in the WinUI targets).
- pipeline: re-enable the WUX consumption test run step.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Remove AuthoringWinUITest packaging wapproj from cswinrt.slnx
0cf002f 
The AuthoringWinUITest (Package) wapproj is a UAP (uap10.0.17763) project; during
solution NuGet restore it walks its transitive ProjectReference graph into the
net10-only AuthoringTest component and fails with NU1201. Packaging wapprojs are
not part of the CI solution (e.g. the BgTaskComponent WpfApp.Package wapproj is not
in cswinrt.slnx either) - they are only needed for local packaging/deploy. Keep the
AuthoringWinUITest.vcxproj in the solution so the native build is still validated in
CI (like AuthoringConsumptionTest); the wapproj file remains on disk for local F5.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Keep AuthoringWinUITest wapproj in solution; fix NU1201 via AssetTarg…
eed3d39 
…etFallback

Reverts the previous removal of the AuthoringWinUITest (Package) wapproj from
cswinrt.slnx. The wapproj is a UAP (uap10.0.17763) project and its restore graph
reaches the net10-only AuthoringTest component (a required ProjectReference - the
CsWinRT native aggregator detects components via that reference's CsWinRTComponent
metadata, so it can't be dropped), producing NU1201. Add AssetTargetFallback
net10.0-windows10.0.26100.1 to the wapproj so NuGet falls back to the net10 assets
instead of hard-failing. Verified locally: `msbuild wapproj /t:restore` now succeeds
(no NU1201) where it failed before.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Disable Release CI build for AuthoringWinUITest (RID winmd collision)…
4f1dec9 
…; keep Debug

Restore is fixed (AssetTargetFallback) so CI now proceeds to build AuthoringWinUITest.
In Release the net10 component (AuthoringTest) builds a RID (win-x64) self-contained
output that copies all its SDK winmds; those flow to the native consumer and collide
with the WinUI package metadata ("Duplicate type ..."), so the XAML markup compiler
never emits the XAML type-info/implementation code and the link fails (LNK2001 on
InitializeComponent/Connect/XamlTypeInfoProvider/XamlMetaDataProvider). Debug does not
reproduce (framework-dependent output, single winmd) and is used for local dev.

Disable only the Release solution build for the wapproj and vcxproj (they are a UI app
that is not executed in CI) to unblock the pipeline, keeping them in the solution and
restore. Follow-up: stop the RID-driven self-contained winmd output from reaching the
consumer's cppwinrt/midlrt winmd inputs, then re-enable Release.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Scope AuthoringWinUITest CI build exclusion to Release|x64 only (AOT …
7162f96 
…config)

Root cause: AuthoringTest's Directory.Build.props builds the component as a NativeAOT
self-contained library only in Release|x64 (to exercise that mode for
AuthoringConsumptionTest). AuthoringWinUITest JIT-hosts the *managed* component, so in
Release|x64 there is no managed .dll to host and the component's self-contained winmd
set collides with the WinUI package metadata, breaking the XAML markup compiler
(LNK2001 on the generated XAML type-info/impl symbols).

Debug (x64/x86) and Release|x86 build the managed component (the AOT condition is
x64-only), so JIT-hosting works there. Narrow the earlier exclusion from all-Release to
Release|x64 only, restoring Release|x86 build coverage. AuthoringConsumptionTest already
covers the Release|x64 AOT native-consumption path.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Trim AuthoringWinUITest Release|x64 exclusion comments in cswinrt.slnx
cd95c01 
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Skip AuthoringWinUITest Release|x86 in solution build
8435cf3 
Release|x86 was the only Release config that builds the AuthoringWinUITest
app (Release|x64 is already skipped because AuthoringTest is NativeAOT there),
and the C++/WinRT app intermittently fails to link its XAML-generated code
(MainWindow/App connectors, XamlMetaDataProvider, WinMain) in the LTCG Release
build. Skip Release|x86 for both the package (.wapproj) and the app (.vcxproj);
the functional coverage for this JIT-host authoring test is provided by the
Debug configurations.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Fix AuthoringWinUITest Release|x86 link by disabling LTCG
8f7e86f 
Release|x86 failed to link the C++/WinRT app's own XAML-generated code
(MainWindow connectors, XamlTypeInfoProvider, XamlMetaDataProvider, WinMain)
with LNK2001/LNK1120. The WinUI markup build links the app twice: a
/WINMD:ONLY metadata pass (/LTCG:incremental, which writes the .iobj LTCG
cache) then the /WINMD:NO exe pass (/LTCG). MarkupCompilePass2 regenerates and
recompiles the XAML metadata-provider sources after the metadata link, but the
exe link reuses the stale incremental LTCG cache from before that recompile, so
the fresh objects are ignored and their symbols are unresolved. Only Release|x86
hit this (the only Release config that builds this JIT-host test app).

Disable WholeProgramOptimization (LTCG) for this test app in Release so the exe
link consumes the up-to-date objects, and re-enable Release|x86 in the solution
(revert the earlier skip). LTCG provides no value for a functional test app.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Skip AuthoringWinUITest Release|x86; LTCG fix was ineffective
97cd430 
The earlier attempt to fix the Release|x86 link failure by disabling LTCG
(commit 8f7e86f) did not work: a fresh CI binlog shows WholeProgramOptimization
was honored (the /WINMD:ONLY metadata link became non-LTCG) yet the exe link still
failed with the same LNK2001/LNK1120 on the XAML-generated code (MainWindow
connectors, XamlMetaDataProvider, WinMain) -- so the missing symbols are not an
LTCG-cache artifact. The markup-generated implementation objects are not reaching
the exe link under the wapproj+solution double build.

Revert the ineffective WholeProgramOptimization change and restore the Release|x86
build skip (mirroring the existing Release|x64 skip) to keep CI green. Functional
coverage for this JIT-host authoring test comes from the Debug configs.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Port ObjectLifetimeTests to CsWinRT 3.0 (C#/WinUI)
16cfdeb 
Bring up the lifted ObjectLifetimeTests app on CsWinRT 3.0 / .NET 10:
- Replace the CsWinRT 2.x WinRT.Interop.WindowNative/InitializeWithWindow
  helpers with [GeneratedComInterface] interfaces cast directly off the
  projected WinRT object.
- Add a WinRT.CastExtensions.As<T> shim for the WinUI markup compiler's
  generated connect code (the type is gone in CsWinRT 3.0).
- Provide a custom Main (DISABLE_XAML_GENERATED_MAIN) that omits the 2.x
  InitializeComWrappers, and run the tests in-process when launched without
  the test-platform handshake, logging via the framework Logger to Trace.
- Add MSBuild workarounds so the WinUI markup passes, XamlPreCompile and the
  interop generator get the right reference set under CsWinRT 3.0 (winmds for
  MarkupCompilePass1, reference-projection ref assemblies for Pass2/XamlPreCompile,
  BCL + MSTest compile assets injected, and the plain non-WinUI MSTest.TestFramework.Extensions).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Track IObservableMap<K,V> Impl type in the interop generator
f7d0c12 
The IObservableMap2 Impl builder created the Impl type but never registered it
via emitState.TrackTypeDefinition (unlike IObservableVector1, IList1, IDictionary2,
etc.). As a result, a user-defined type implementing IObservableMap<K,V> (e.g.
ObservableDictionary) failed CCW/vtable generation with CSWINRTINTEROPGEN0024
(Impl lookup miss) wrapped as CSWINRTINTEROPGEN0039. Track it like the other
collection Impl builders.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Clarify BasicTest6b disabled-test comment
a417169 
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Enable Object Lifetime Tests in CI without failing on test failures
bcc09e3 
Update the VSTest appxrecipe path to the CsWinRT 3.0 TFM
(net10.0-windows10.0.26100.1) so the built app is found, and set
continueOnError on the run step so the currently-failing tests don't
fail the pipeline.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Enable ObjectLifetimeTests in the solution on the CsWinRT 3.0 TFM
99451bd 
Build ObjectLifetimeTests.Lifted for x64 (deploy on x64) in the solution
instead of skipping it, and move TestsBuildTFMs to the CsWinRT 3.0 TFM
(net10.0-windows10.0.26100.1).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Enable the Tests CI job
33203f9 
The Run Tests job (which builds/runs Object Lifetime Tests and the Source
Generator Tests) was gated off with condition: false, so none of it ran.
Enable it (condition: succeeded()); Object Lifetime Test failures are
already non-fatal via continueOnError.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@manodasanW
Build full solution in Tests CI job so CsWinRT build tooling is avail…
4c473ef 
…able

The Tests job runs with dependsOn: [] and previously called the build
template with SetupForBuildOnly: true, which skips the 'Build cswinrt.slnx'
step. As a result the CsWinRT build tooling (WinRT.Generator.Tasks.dll and
the generator executables) was never produced, and the standalone
'Build Object Lifetime Tests' step failed intermittently with MSB4062
(RunCsWinRTProjectionRefGenerator task could not be loaded).

Switch the Tests job to SetupForBuildOnly: false so the full solution is
built with PublishBuildTool=true, producing and staging all tooling (and
building ObjectLifetimeTests, now part of the solution) before the tests run.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1f3c21e0-4749-4d5b-899f-1d0298e7ab96
@manodasanW
Tests CI job: build only the CsWinRT tooling, not the whole solution
b231ce3 
Replace the full 'Build cswinrt.slnx' (SetupForBuildOnly: false) in the Tests
job with a targeted build of just the generator executables and
WinRT.Generator.Tasks.dll via the solution's project target names
(WinRT_Impl_Generator, WinRT_Interop_Generator, WinRT_Projection_Generator,
WinRT_Projection_Ref_Generator, WinRT_WinMD_Generator, WinRT_Generator_Tasks).

This builds only those projects plus their closure (WinRT.Generator.Core and
WinRT.Projection.Writer) instead of the entire solution, while the solution's
x64->AnyCPU platform mapping still lands the outputs where Directory.Build.props
expects them. The subsequent standalone 'Build Object Lifetime Tests' step then
finds the tooling and no longer fails with MSB4062.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1f3c21e0-4749-4d5b-899f-1d0298e7ab96
@manodasanW
Tests CI job: also build WinRT.Internal in the tooling step
872e7e6 
The Windows projection (Windows.csproj) consumes WindowsRuntime.Internal.winmd
via $(CsWinRTInteropMetadata), which is produced by the WinRT.Internal project
(a build-order dependency in the solution, not a ProjectReference). The
tooling-only step built the generators but not WinRT.Internal, so the
standalone "Build Object Lifetime Tests" step failed with
CSWINRTPROJECTIONREFGEN0005 (input metadata WindowsRuntime.Internal.winmd does
not exist).

Add WinRT_Internal to the targeted build. It self-contains its own host-built
cswinrtwinmdgen (its ProjectReference undefines PublishBuildTool/BuildToolArch)
and produces the winmd at the AnyCPU path the projection expects.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 1f3c21e0-4749-4d5b-899f-1d0298e7ab96
@manodasanW
Run native-consumer aggregation after Link to fix WinUI pre-link orde…
461240c 
…ring

CsWinRTGenerateComponentInterop ran BeforeTargets=Link with a heavy ResolveProjectReferences/ResolveAssemblyReferences dependency chain, which perturbed the C++ pre-link target ordering so the WinUI markup compiler's ComputeXamlGeneratedCLOutputs ran after ComputeLinkSwitches. That dropped XamlTypeInfo.g.obj/XamlMetaDataProvider.obj from the final link, causing unresolved externals in native WinUI XAML apps that JIT-host a managed CsWinRT component.

The merged hosting bundle (WinRT.Component.dll and friends) is a runtime asset the native exe never links against, so it only needs to exist before output-group harvest / run - both of which happen after the link. Move the target to AfterTargets=Link so the feature is entirely out of the link input computation, restoring the stock WinUI pre-link ordering. Verified via native build binlog: link succeeds with the XAML objs present, and the bundle is still produced.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Force full LTCG for Release C++ builds via ForceImportAfterCppTargets
6064426 
The repo enables CastGuard (/guard:cast) for Release C++, which is
incompatible with the /LTCG:incremental that WholeProgramOptimization
defaults to. The previous ForceNonIncrementalLTCG target (BeforeTargets=Link)
only stamped @(Link) items present when it ran, so it missed the
XAML-generated objects that WinUI's C++ targets add later via ClearMetadata().
Those defaulted to /LTCG:incremental and were split into a separate, failing
sub-link.

Replace the target with an ItemDefinitionGroup (ForceNonIncrementalLTCG.targets)
imported at the end of Microsoft.Cpp.targets via the ForceImportAfterCppTargets
property. As an item default imported after the Cpp WholeProgramOptimization
ItemDefinitionGroup, it wins and also applies to @(Link) items added at any
later point, giving uniform full LTCG.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Fix WinMD generator contract-assembly resolution for referenced proje…
8d2d4be 
…cted types

The WinMD generator resolved a referenced projected type's source .winmd contract
assembly name via the centralized ABI.WindowsRuntimeMetadataTypes lookup, which is only
emitted into implementation projections (produced at app build time). A component
authoring build references reference projections, which don't carry that lookup, so
resolution always missed and fell back to the projection assembly name (e.g.
Microsoft.WinUI instead of Microsoft.UI.Xaml).

Resolve the contract assembly name by finding the referenced type (by namespace and
name) in the input .winmd files and using the .winmd file name it comes from. Adds
--winmd-paths and --windows-metadata inputs plus a WindowsRuntimeMetadataNameResolver,
handles custom-mapped types in ImportTypeReference, removes the now-unused lookup
extension, extends the debug repro, and wires the new inputs through the MSBuild task and
authoring targets. The Windows metadata token is expanded (WindowsMetadataExpander) and
its directories scanned the same way as the projection generators.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Move IObservableMap<K,V> Impl tracking call next to its declaration
bfba440 
Address review feedback on f7d0c12: place the emitState.TrackTypeDefinition
call for the IObservableMap<K,V> Impl type right after the statement that
declares it (the Impl(...) call), before the conditional-weak-table member
additions, matching the convention used by the other collection Impl builders
so it is clear what the tracking call refers to.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Trim verbose CI tooling-build comment in pipeline templates
22a8451 
Condense the multi-line comment above the "Build CsWinRT build tooling" step
in the GitHub and OneBranch stage templates to the essentials: what it builds,
why the standalone Object Lifetime Tests step needs it, and why it builds by
target name (BuildDependency ordering + x64->AnyCPU mapping; otherwise MSB4062 /
CSWINRTPROJECTIONREFGEN0005 or misplaced outputs).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Always run ObjectLifetimeTests in-process
baafdf8 
Comment out the --parentprocessid branch (testhost UnitTestClient.Run) in the
ObjectLifetimeTests app launch so RunTestsInProcess() always runs, even when
--parentprocessid is passed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Remove stale Source Generator Tests step; revert in-process test over…
0540829 
…ride

Remove the "Run Source Generator Tests" pipeline step from the GitHub and
OneBranch build/test stage templates. It ran src/Tests/SourceGeneratorTest/
SourceGeneratorTest.csproj, which was deleted in #2354; the current source
generator/analyzer tests (SourceGenerator2Test) already run via the
"Run Source Generator 2 Tests" step in CsWinRT-Test-Steps.yml.

Also revert the ObjectLifetimeTests launch back to dispatching on
--parentprocessid (testhost UnitTestClient.Run when present, in-process
otherwise) instead of always running in-process.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
manodasanW and others added 13 commits July 18, 2026 22:00
@manodasanW
Add in-process Object Lifetime test run to the pipeline
e52138f 
Add a "Run Object Lifetime Tests (In-Process)" step after the existing VSTest
run in the GitHub and OneBranch stage templates. It launches the packaged
ObjectLifetimeTests app directly (via a new build/scripts/Run-ObjectLifetimeInProcess.ps1
that registers the loose MSIX layout and activates it by AUMID), so no
--parentprocessid is passed and App.OnLaunched takes the RunTestsInProcess path.
The app self-exits with the pass/fail code, which the script surfaces. Marked
continueOnError while some tests still fail on CsWinRT 3.0.

Note: the packaged-app activation and exit-code capture still need validation in
the CI environment.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Capture in-process Object Lifetime test output
e985c50 
Tee the test framework Logger messages (PASS/FAIL per test + summary) to a log
file in the app's package temp folder during the direct/in-process run, since a
directly-launched packaged app has no console for Trace to reach the pipeline.
Run-ObjectLifetimeInProcess.ps1 then prints that log after the app exits, so the
per-test results show up in the pipeline output.

Only affects the in-process path (RunTestsInProcess); the VSTest run is
unchanged.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Disable VSTest ObjectLifetime run; trim in-process logging comments
a14321a 
Disable (but keep) the VSTest "Run Object Lifetime Tests" step in both stage
templates: the VSTest task can't run these tests in the packaged CsWinRT 3.0
app - it launches the app as a testhost client but MSTest discovers no tests
in it (see CI logs). The in-process step runs these tests instead.

Also trim the verbose comments added with the in-process logging.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Re-enable VSTest ObjectLifetime run with diagnostics; warn-only in-pr…
708f6d5 
…ocess

Re-enable the VSTest "Run Object Lifetime Tests" step in both stage templates
and turn on diagnosticsEnabled so CI captures the testhost handshake and reveals
why MSTest discovers no tests in the packaged CsWinRT 3.0 app. It keeps
continueOnError so it can't fail the build.

Make the in-process run warn instead of fail: Run-ObjectLifetimeInProcess.ps1
now logs a pipeline warning when the app reports test failures and exits 0.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Publish Object Lifetime test artifacts and collect VSTest diagnostics
672994e 
The GitHub stage Tests job had no templateContext.outputs, so it published no
artifacts (unlike the BuildAndTest/Benchmarks jobs). Add one that publishes the
staging folder as drop_Tests_<config>. Point VSTest resultsFolder at the staging
folder, and add a step that copies the VSTest diagnostics (which land in
$(Agent.TempDirectory)) into the staging folder and echoes them to the log, so
the discovery diagnostics are visible even if the artifact upload misbehaves.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Publish Object Lifetime in-process log and widen VSTest diag capture
3071fc2 
The VSTest run again discovered 0 tests ("No test is available") and the
vstest-diag folder in the published artifact was empty, so on CloudTest the
diagnostics don't land in the two roots the collect step searched. Widen the
collect step to also look under the results folder, sources dir and TEMP, and
match the host/datacollector diag file names.

More importantly, the in-process run is the path that actually executes the
tests, but its log was only echoed to the build log. Add an -OutputDir param to
Run-ObjectLifetimeInProcess.ps1 and copy the app's in-process log there, and
pass $(StagingFolder)\ObjectLifetime-InProc from the GitHub stage so the real
test output is published as part of the drop_Tests_<config> artifact.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Capture VSTest discovery diag via /Diag instead of diagnosticsEnabled
e0cf4ae 
The published vstest-diag folder was empty because diagnosticsEnabled only
collects dumps on catastrophic failures (crash/hang) - the run completes cleanly
reporting 0 tests, so nothing is produced. The trx confirms this: no Collector
attachments, no ResultFiles, outcome=Completed.

To actually capture why discovery finds 0 tests, pass vstest.console's /Diag
engine log via otherConsoleOptions, writing log.txt (+ host/datacollector logs)
straight into $(StagingFolder)\vstest-diag so it is deterministic and published
as part of the artifact. Simplify the collect step to echo those logs to the
build log, with a temp-dir scrape only as a fallback.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Disable VSTest ObjectLifetime run; root cause is CsWinRT 2.x MSTest a…
9187037 
…dapter

The vstest.console /Diag log root-caused the "No test is available" (0 tests)
discovery failure: MSTest.TestAdapter.dll's module initializer
(MSTestExecutor.SetPlatformLogger) references WinRT.ComWrappersSupport, a CsWinRT
2.x type that no longer exists in the CsWinRT 3.0 WinRT.Runtime (3.0.0.0) the app
deploys. The adapter's <Module> initializer throws TypeLoadException, VSTest
skips the entire adapter, and discovers no tests.

Since VSTest discovery cannot succeed against a CsWinRT 3.0 app with today's
MSTest adapter, disable the VSTest step (and its diagnostics-collection step),
keeping both so they can be re-enabled once a CsWinRT 3.0-compatible adapter
exists. The in-process runner remains the real test gate; a real run reports
21 passed / 7 failed (the failures are genuine object-lifetime assertions).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Also run Object Lifetime tests in-process after Source Generator 2 tests
4e6b0c3 
Experiment: in addition to the separate Tests job, run the Object Lifetime tests
in-process in the BuildAndTest job right after the Source Generator 2 tests, to
compare behavior across the two job environments. The packaged app is already
built as part of the cswinrt.slnx build in this job (GenerateTestProjection=true),
so no extra build step is needed. Gated to x64 (the arch that activates on the
x64 agent and matches the Tests job) and warn-only via continueOnError; the run
log is echoed to the build log and published via StagingFolder.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Enable CsWinRT-Test-Steps.yml in the OneBranch Build/Test job
84d7d94 
Uncomment the CsWinRT-Test-Steps.yml template in the OneBranch main Build/Test
job so it runs the test suite (unit, Source Generator 2, functional, authoring
consumption, and the in-process Object Lifetime run) like the GitHub stage does.

Dropped the commented-out parameters block: CsWinRT-Test-Steps.yml declares no
parameters (it starts at steps:), so passing BuildConfiguration/BuildPlatform
would be an invalid-parameter error. The template reads those as job-level
variables, matching how the GitHub stage invokes it.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Move Object Lifetime in-process run back to the Tests job; sync OneBr…
152416b 
…anch

Remove the experimental in-process Object Lifetime step from CsWinRT-Test-Steps.yml
(the BuildAndTest matrix job); the Object Lifetime run stays in the dedicated
Tests job in each stage.

Sync the OneBranch stage's separate Tests job to the GitHub one:
- Disable the VSTest step (enabled: false), keeping it for later re-enable, with
  the root-cause comment (MSTest adapter's module initializer references the
  CsWinRT 2.x WinRT.ComWrappersSupport, gone in WinRT.Runtime 3.0.0.0 -> adapter
  skipped -> 0 tests). Swap diagnosticsEnabled for resultsFolder + /Diag.
- Add -OutputDir to the in-process step so its log is published.
- Add the (disabled) Collect VSTest diagnostics step.
OneBranch publishes via ob_outputDirectory auto-publish, so no templateContext
outputs block is needed (that is the GitHub/1ES convention).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Fix OneBranch Object Lifetime build: pass PublishBuildTool/BuildToolArch
b9409b5 
The OneBranch Tests job's "Build Object Lifetime Tests" step was missing
PublishBuildTool=true,BuildToolArch=$(CsWinRTBuildToolsArch), which the GitHub
stage passes. Without them, CsWinRTGenerateProjection resolves
cswinrtprojectionrefgen.exe to the non-AOT-published bin\debug\net10.0 path,
which does not exist, so building the projection references
(Projections\Windows, Projections\WinAppSDK) fails with MSB6004 "The specified
task executable location ... is invalid". Add the two properties to match GitHub
(the preceding "Build CsWinRT build tooling" step already publishes the tools to
the arch-specific location).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Run Source Generator 2 tests on x64 only (fix x86 OOM)
23d2dd5 
The Source Generator 2 tests are Roslyn analyzer/source-generator tests, which
are architecture-independent, so running them on both x86 and x64 is redundant.
The x86 (32-bit) test host loads the full .NET 10 reference pack plus WinUI and
CsWinRT references across 100+ cases and exhausts the ~2-4 GB 32-bit address
space on memory-constrained pools, throwing System.OutOfMemoryException. This
surfaced on the OneBranch managed pool (x86 debug/release) after enabling the
test steps there; x64 passes everywhere and GitHub's hosted x86 agents had just
enough headroom. Gate the step to x64 to fix it deterministically with no
coverage loss.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
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manodasanW and others added 2 commits July 20, 2026 16:11
@manodasanW
Verify WUX exception HR mapping by type full name in AuthoringWuxTest
acf0e60 
XamlExceptionTypes.VerifyExceptionTypes() had been weakened to only check that
RestrictedErrorInfo.GetExceptionForHR(HR) returns some Exception, which any
non-null exception satisfies. Restore the original intent of the commented-out
typeof(...) equivalent by comparing GetType().FullName to the specific
Windows.UI.Xaml.* exception type names. Those types are no longer projected, so
they cannot be referenced via typeof(...); the full-name string comparison keeps
the assertion meaningful without a compile-time dependency on them. Null-safe via
?. so a null HR result yields a non-match rather than an NRE. The commented-out
typeof(...) block is kept as documentation of the ideal form.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: f41aedc2-0034-4691-9e82-024a3beb3321
@manodasanW
Merge branch 'staging/3.0' into manodasanw/winuitest
c2e47ee
@manodasanW
manodasanW requested a review from Sergio0694 July 21, 2026 01:01
Sergio0694
Sergio0694 reviewed Jul 21, 2026
View reviewed changes
Comment thread src/WinRT.Projection.Generator/Generation/ProjectionGenerator.Generate.cs Outdated
Comment thread src/WinRT.WinMD.Generator/Helpers/WindowsRuntimeMetadataNameResolver.cs Outdated
Comment thread src/WinRT.WinMD.Generator/WinRT.WinMD.Generator.csproj

<ItemGroup>
<ProjectReference Include="..\WinRT.Generator.Core\WinRT.Generator.Core.csproj" />
<ProjectReference Include="..\WinRT.Projection.Writer\WinRT.Projection.Writer.csproj" />

@Sergio0694 Sergio0694 Jul 21, 2026

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Why is this needed?

@manodasanW manodasanW Jul 21, 2026

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Using WindowsMetadataExpander to parse the WindowsMetadata property

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