[WBT] enable coreCLR by pavelsavara · Pull Request #124850 · dotnet/runtime

pavelsavara · 2026-02-25T09:27:37Z

drop WasmBrowserRunMainOnly
add [TestCategory("native")] as necessary
always expect dotnet.diagnostics.js on CoreCLR
disable native trait for CoreCLR run
split off AOT tests

Copilot

Pull request overview

This pull request enables CoreCLR runtime testing in the WASM Build Tests suite by categorizing tests and filtering them appropriately based on the runtime flavor. The PR removes a CoreCLR-specific test asset that is no longer needed and ensures that tests requiring native builds, Mono-specific features, or workload installations are properly excluded when running with CoreCLR.

Changes:

Removed the WasmBrowserRunMainOnly test asset and test class, which was specifically created for CoreCLR but is no longer needed
Added TestCategory attributes to categorize tests as "native" (requiring AOT/native builds), "mono" (Mono-specific features), or "workload" (requiring workload installation)
Updated test filtering logic in Wasm.Build.Tests.csproj to exclude native/mono/workload tests when running with CoreCLR runtime
Modified WasmSdkBasedProjectProvider to expect diagnostics files for CoreCLR builds

Reviewed changes

Copilot reviewed 46 out of 46 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/mono/wasm/testassets/WasmBrowserRunMainOnly/*	Deleted entire test asset directory (6 files) that was specific to CoreCLR testing
src/mono/wasm/Wasm.Build.Tests/WasmBrowserRunMainOnly.cs	Deleted CoreCLR-specific test class
src/mono/wasm/Wasm.Build.Tests/BrowserStructures/TestAsset.cs	Removed WasmBrowserRunMainOnly test asset reference
src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj	Updated XUnit trait filtering to exclude native/mono/workload categories for CoreCLR
src/mono/wasm/Wasm.Build.Tests/WasmSdkBasedProjectProvider.cs	Added logic to expect diagnostics.js files for CoreCLR builds
src/mono/wasm/Wasm.Build.Tests/WorkloadTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/WasmBuildAppTest.cs	Added "native" category to AOT test methods
src/mono/wasm/Wasm.Build.Tests/WasmSIMDTests.cs	Added "native" category to PublishSIMD_AOT test
src/mono/wasm/Wasm.Build.Tests/WasmNativeDefaultsTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/Templates/WasmTemplateTests.cs	Added "workload" and "native" categories to various template tests
src/mono/wasm/Wasm.Build.Tests/Templates/NativeBuildTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/SatelliteAssembliesTests.cs	Added "native" category to resource assembly tests
src/mono/wasm/Wasm.Build.Tests/PInvokeTableGeneratorTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/NativeRebuildTests/*	Added "native" category to all native rebuild test classes (5 files)
src/mono/wasm/Wasm.Build.Tests/NativeLibraryTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/NativeBuildTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/ModuleConfigTests.cs	Split SymbolMapFileEmitted test into two separate tests, marking only the emitting case as "native"
src/mono/wasm/Wasm.Build.Tests/MemoryTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/MainWithArgsTests.cs	Added "native" category to main-with-args tests
src/mono/wasm/Wasm.Build.Tests/InvariantTimezoneTests.cs	Added "native" category to invariant timezone tests
src/mono/wasm/Wasm.Build.Tests/InvariantGlobalizationTests.cs	Added "native" category to invariant globalization tests
src/mono/wasm/Wasm.Build.Tests/InterpPgoTests.cs	Added "mono" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/IcuTests.cs	Added "native" and "workload" categories to ICU tests
src/mono/wasm/Wasm.Build.Tests/IcuShardingTests*.cs	Added "native" category to ICU sharding tests (2 files)
src/mono/wasm/Wasm.Build.Tests/DllImportTests.cs	Added "native" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/DiagnosticsTests.cs	Added "mono" category to class-level TestCategory
src/mono/wasm/Wasm.Build.Tests/BuildPublishTests.cs	Added "native" category to AOT publish tests
src/mono/wasm/Wasm.Build.Tests/Blazor/*	Added "native" and "mono" categories to various Blazor tests (8 files)

Copilot

Pull request overview

Copilot reviewed 49 out of 49 changed files in this pull request and generated 3 comments.

eng/pipelines/global-build.yml

eng/pipelines/runtime-linker-tests.yml

src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj

Copilot

Pull request overview

Copilot reviewed 50 out of 50 changed files in this pull request and generated no new comments.

ilonatommy · 2026-02-26T07:05:55Z

Total: 149, Errors: 0, Failed: 49
log

"Native module already loaded"
CoreCLR doesn't support re-initialization (?)
"Timed out after 10s waiting for 'WASM EXIT' message"
CoreCLR's doesn't emit the exit code log that Mono's WasmTestLogExitCode produces.
"TODO: loadLazyAssembly is not implemented yet" (3 failures — LazyLoadingTests)
LoadLazyAssembly is not implemented yet. ~~Can be disabled.~~ probably fixed by [browser][CoreCLR] lazy and satelite assemblies #124853

Copilot

Pull request overview

Copilot reviewed 51 out of 51 changed files in this pull request and generated 1 comment.

eng/testing/scenarios/BuildWasmAppsJobsListCLR.txt

pavelsavara · 2026-02-26T07:24:59Z

we can update this branch and try to add back the lazy loading, I just merged it

Copilot

Pull request overview

Copilot reviewed 50 out of 50 changed files in this pull request and generated 1 comment.

Copilot · 2026-02-26T07:37:10Z

src/libraries/sendtohelix-wasm.targets

+      <HelixWorkItem Include="@(BuildWasmApps_PerJobList->'$(WorkItemPrefix)%(Identity)')" Condition="'$(RuntimeFlavor)' == 'CoreCLR' and '$(WasmFingerprintAssets)' == 'true' and '$(WasmBundlerFriendlyBootConfig)' == 'false'">
        <PayloadArchive>$(_BuildWasmAppsPayloadArchive)</PayloadArchive>
        <PreCommands>$(EnvVarCommand) &quot;HELIX_XUNIT_ARGS=-class %(Identity)&quot;</PreCommands>
        <Command>$(HelixCommand)</Command>


The new per-class CoreCLR work item condition relies on $(WasmFingerprintAssets) == 'true', but in CoreCLR BuildWasmApps this property may be empty (not explicitly set) even though fingerprinting defaults to enabled in the SDK/RunScriptTemplate. That would prevent these per-class items from being created, making BuildWasmAppsJobsListCLR.txt unused. Also, if WasmFingerprintAssets is set to true for CoreCLR in the future, ensure the existing fallback Wasm.Build.Tests work item (below) is suppressed to avoid running both the per-class items and the full suite.

ilonatommy · 2026-02-26T11:58:46Z

Summary:

Test Class	Result	Error Text	Reason for Failure
Wasm.Build.Tests.AppSettingsTests	0/8 PASS	`'/appsettings.json' exists 'False'`	CoreCLR doesn't bundle appsettings files
Wasm.Build.Tests.DebugLevelTests	14/14 PASS
Wasm.Build.Tests.DownloadThenInitTests	0/0 SKIP		`[TestCategory("mono")]` — CoreCLR can't re-init native module
Wasm.Build.Tests.EnvVariablesTests	1/1 PASS
Wasm.Build.Tests.FilesToIncludeInFileSystemTests	2/2 PASS
Wasm.Build.Tests.HttpTests	2/2 PASS
Wasm.Build.Tests.LazyLoadingTests	1/4 PASS	`TODO: loadLazyAssembly is not implemented yet`	Runtime pack needs rebuild after lazy loading PR merge
Wasm.Build.Tests.LibraryInitializerTests	0/2 PASS	LoadLibraryInitializer: empty collection (initializer not called); AbortStartupOnError: WASM EXIT timeout
Wasm.Build.Tests.MaxParallelDownloadsTests	0/2 PASS	Active downloads exceeded the limit (2 > 1, 5 > 4)	Download throttling logic not enforced
Wasm.Build.Tests.ModuleConfigTests	4/8 PASS	DownloadProgressFinishes: WASM EXIT timeout; OutErrOverrideWorks: override failed; OverrideBootConfigName: not supported
Wasm.Build.Tests.PreloadingTests	8/8 PASS
Wasm.Build.Tests.RebuildTests	1/1 PASS
Wasm.Build.Tests.SatelliteLoadingTests	2/4 PASS	Assert.Equal() Failure: Strings differ (expected: "es-ES with satellite: hola", actual: "es-ES with satellite: hello")	Satellite resource loading returns wrong string for es-ES; CoreCLR does not load correct satellite resources
Wasm.Build.Tests.WasmBuildAppTest	8/8 PASS
Wasm.Build.Tests.WasmRunOutOfAppBundleTests	2/2 PASS
Wasm.Build.Tests.WasmTemplateTests	1/1 PASS

pavelsavara added 2 commits February 25, 2026 10:25

drop WasmBrowserRunMainOnly

4a3cbb0

wip

8e8806c

pavelsavara added this to the 11.0.0 milestone Feb 25, 2026

pavelsavara self-assigned this Feb 25, 2026

Copilot AI review requested due to automatic review settings February 25, 2026 09:27

pavelsavara added arch-wasm WebAssembly architecture area-Infrastructure-coreclr os-browser Browser variant of arch-wasm labels Feb 25, 2026

github-project-automation bot added this to Runtime Infra Feb 25, 2026

Copilot started reviewing on behalf of pavelsavara February 25, 2026 09:28 View session

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pavelsavara requested a review from radekdoulik February 25, 2026 10:01

ilonatommy added 2 commits February 25, 2026 11:46

TMP: shorten the dev loop, disable lanes that we're not fixing.

10c3308

Enable WBT for CoreCLR.

16535e5

Copilot AI review requested due to automatic review settings February 25, 2026 10:49

Copilot started reviewing on behalf of ilonatommy February 25, 2026 10:50 View session

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eng/pipelines/global-build.yml Outdated Show resolved Hide resolved

eng/pipelines/runtime-linker-tests.yml Outdated Show resolved Hide resolved

src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj Show resolved Hide resolved

Remove TMP changes.

0b92d26

build-analysis bot mentioned this pull request Feb 25, 2026

[android][clr] No peer certificates when executing System.Net.Http.Functional.Tests on Android emulator #124526

Open

job list for coreCLR

3bc6c76

Copilot AI review requested due to automatic review settings February 25, 2026 16:35

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build-analysis bot mentioned this pull request Feb 25, 2026

Wasm build terminated with exit code 137 #108299

Open

Fix 0 tests matched on CI.

e7f36c4

This was referenced Feb 25, 2026

[android-arm64] The Operation will be canceled. The next steps may not contain expected logs. dotnet/dnceng#6408

Open

[FAIL] System.Net.Http.Functional.Tests.SocketsHttpHandler_HttpClientHandlerTest.LargeUriAndHeaders_Works #124487

Open

Disable until we have lazy loading for coreclr.

c3c7d7c

Copilot AI review requested due to automatic review settings February 26, 2026 07:09

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eng/testing/scenarios/BuildWasmAppsJobsListCLR.txt Show resolved Hide resolved

Feedback: better exclusion.

be5b8a1

Merge branch 'main' into wbt_coreclr

760be21

Copilot AI review requested due to automatic review settings February 26, 2026 07:28

Re-enable lazy loading.

93ee02b

Copilot started reviewing on behalf of ilonatommy February 26, 2026 07:29 View session

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build-analysis bot mentioned this pull request Feb 26, 2026

Unable to pull image from mcr.microsoft.com #117164

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[WBT] enable coreCLR#124850

[WBT] enable coreCLR#124850
pavelsavara wants to merge 11 commits intodotnet:mainfrom
pavelsavara:wbt_coreclr

pavelsavara commented Feb 25, 2026 •

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