[0.84] Re-introduce Desktop integration tests#16021
Merged
JunielKatarn merged 3 commits intomicrosoft:0.84-stablefrom Apr 22, 2026
Merged
[0.84] Re-introduce Desktop integration tests#16021JunielKatarn merged 3 commits intomicrosoft:0.84-stablefrom
JunielKatarn merged 3 commits intomicrosoft:0.84-stablefrom
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* Update packages locks * Update node locks * Add FollyWin32 lock * Add Prototype * Try adding IDLs from MSRN * Update Vars target * Add manifest, just in case * Export property bag symbols used by desk ITs * Grab missing generated includes * Instantiate msrn:ReactNativeHost * TODO: Obtain main queue * Implement TestUIDispatcher * Define HermesPackageName MSBuild property * split instance settins instantiation * Set up bundle source and platform * Init apartment at class init * Declare TestReactNativeHostHolder * Update lock * Add WinAppSDK dependency * Bootstrap WinApp runtime * Implement holder synchronization and UI queue * Update TestUIDispatcher to user DispatcherQueue * Update yarn lock * CallJSFunction: runApplication * CallJSFunction: unmountApplicationComponentAtRootTag * Add TestModule.h * Fix REACT_METHOD declarations * Implement sendAppEvent * Implement awaiting logic for TestModule * Add plumbing to make Dummy test pass * Add AppState mock * Place test support types into own compilation units and headers * Place test support types into own compilation units and headers * Rename MockCompositionContext -> TestCompositionContext * Set namespace * Rename Prototype.cpp to RNTesterHeadlessTests.cpp * Minor edit * Remove unused activation code The test DLL is loaded by testhost.exe, which knows nothing about the DLL's WinRT classes. The DLL has an embedded manifest (resource ID 2) that registers activatable WinRT classes (like ReactNativeHost). The code called CreateActCtxW to load that manifest and ActivateActCtx to push it onto the thread's activation context stack — so that RoGetActivationFactory could resolve those WinRT types at runtime. * Use infinite wait for events. Time limits will be enforceb by CI tasks. * Add failing condition to DummyTest * Add class diagram * Change files * Remove PR.md * Remove manifest * Remove comment * Implement WinRTActivationShims Leverages the Desktop DLL activation factories removing the need to declare some types in the DLL DEF list which are only required for testing and otherwise should stay module-private. * clang format * Remove unused test filter entries * Rename update CI references to RNTesterHeadlessTests * Put Windows.h in separate "paragraph" * Install Windows App SDK Runtime into build agents * Move checkout step before installers downloads
Performance Test ResultsBranch: ✅ Passed161 scenario(s) across 28 suite(s) — no regressionsSectionList
FlatList
TouchableOpacity
ScrollView
TouchableHighlight
Pressable
Modal
Image
ActivityIndicator
Switch
Button
TextInput
View
Text
SectionList.native-perf-test.ts
FlatList.native-perf-test.ts
TouchableHighlight.native-perf-test.ts
TouchableOpacity.native-perf-test.ts
Pressable.native-perf-test.ts
ScrollView.native-perf-test.ts
ActivityIndicator.native-perf-test.ts
TextInput.native-perf-test.ts
Switch.native-perf-test.ts
Button.native-perf-test.ts
Modal.native-perf-test.ts
Image.native-perf-test.ts
View.native-perf-test.ts
Text.native-perf-test.ts
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Backport of #16017
Microsoft Reviewers: Open in CodeFlow