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Delete legacy catalyst test helpers (#59283) - #59283

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christophpurrer wants to merge 24 commits into
react:mainfrom
christophpurrer:export-D126576088
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christophpurrer wants to merge 24 commits into
react:mainfrom
christophpurrer:export-D126576088

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@christophpurrer

@christophpurrer christophpurrer commented Oct 21, 2026 •

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Summary:

Delete the deprecated createCatalystContextForTest and
createMockCatalystInstance helpers from ReactTestHelper, now that every
caller has migrated to createTestReactApplicationContext. Drop the
file-level deprecation suppression and its TODO, which only existed for the
removed helpers.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D126576088

Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext` and pass the application directly as the themed base. Add the `ShadowSoLoader` Robolectric shadow the bridgeless helper needs.

Changelog: [Internal]

Differential Revision: D126543755
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext`, stub feature flags before creating the context, and add the `ShadowSoLoader` Robolectric shadow.

Changelog: [Internal]

Differential Revision: D126543660
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext` and add the `ShadowSoLoader` Robolectric shadow the bridgeless helper needs.

Changelog: [Internal]

Differential Revision: D126543566
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext` and add the `ShadowSoLoader` Robolectric shadow the bridgeless helper needs.

Changelog: [Internal]

Differential Revision: D126543381
@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Oct 21, 2026
@meta-codesync

meta-codesync Bot commented Oct 21, 2026

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@christophpurrer has exported this pull request. If you are a Meta employee, you can view the originating Diff in D126576088.

Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with a spied `createTestReactApplicationContext`, stub `hasActiveReactInstance` for the dispatch test, and add the `ShadowSoLoader` Robolectric shadow. Keep the file-level deprecation suppression: the file still exercises other deprecated test APIs (`RCTEventEmitter`), and the open-source build treats warnings as errors.

Changelog: [Internal]

Differential Revision: D126570685
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext` and add the `ShadowSoLoader` Robolectric shadow the bridgeless helper needs.

Changelog: [Internal]

Differential Revision: D126570686
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext` and add the `ShadowSoLoader` Robolectric shadow the bridgeless helper needs.

Changelog: [Internal]

Differential Revision: D126570688
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with `createTestReactApplicationContext` and add the `ShadowSoLoader` Robolectric shadow the bridgeless helper needs.

Changelog: [Internal]

Differential Revision: D126570689
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with a spied `createTestReactApplicationContext`, stubbing `hasActiveReactInstance` and no-opping `emitDeviceEvent` to preserve emission verification.

Changelog: [Internal]

Differential Revision: D126570690
Summary:
Replace the deprecated `BridgeReactContext` + mock `CatalystInstance` setup with a spied `createTestReactApplicationContext`, moving the `UIManagerModule` stub onto the context spy and no-opping `emitDeviceEvent`.

Changelog: [Internal]

Differential Revision: D126570692
Summary:
Migrate `FabricUIManagerPullModelTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly.

Changelog:
[Internal]

Differential Revision: D126574347
Summary:
Migrate `MountingManagerAnimatedPropsTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly.

Changelog:
[Internal]

Differential Revision: D126574351
Summary:
Migrate `SurfaceMountingManagerSynchronousMountPropsTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly.

Changelog:
[Internal]

Differential Revision: D126574353
Summary:
Migrate `SurfaceMountingManagerTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Add the `ShadowSoLoader`
Robolectric shadow, which the new helper needs to mock the component factory.

Changelog:
[Internal]

Differential Revision: D126574354
Summary:
Migrate `BaseViewManagerDelegateTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Add the `ShadowSoLoader`
Robolectric shadow, which the new helper needs to mock the component factory.

Changelog:
[Internal]

Differential Revision: D126574355
Summary:
Migrate `ImageLoaderModuleTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Stub the feature flags
before context creation, since the bridgeless context reads them during init.

Changelog:
[Internal]

Differential Revision: D126574356
Summary:
Migrate `ShareModuleTest` from the deprecated `createCatalystContextForTest`
helper to `createTestReactApplicationContext`, so the test builds a bridgeless
context directly. Add the `ShadowSoLoader` Robolectric shadow and stub the
feature flags before context creation, since the bridgeless context reads
them during init.

Changelog:
[Internal]

Differential Revision: D126574357
Summary:
Migrate `ReactScrollViewHelperFlingAnimatorTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Stub the feature flags
before context creation, since the bridgeless context reads them during init.

Changelog:
[Internal]

Differential Revision: D126574358
Summary:
Migrate `SurfaceMountingManagerEventOrderingTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly.

Changelog:
[Internal]

Differential Revision: D126574360
Summary:
Migrate `ThemedReactContextTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Stub the feature flags
before context creation, since the bridgeless context reads them during init.

Changelog:
[Internal]

Differential Revision: D126574361
Summary:
Migrate `BlobModuleTest` from the deprecated `createCatalystContextForTest`
helper to `createTestReactApplicationContext`, so the test builds a bridgeless
context directly. Add the `ShadowSoLoader` Robolectric shadow and stub the
feature flags before context creation, since the bridgeless context reads
them during init.

Changelog:
[Internal]

Differential Revision: D126574362
Summary:
Migrate `TouchEventDispatchTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Install a mocked
`ReactQueueConfiguration` via `initializeMessageQueueThreads` to satisfy the
UI-thread check in `FabricEventDispatcher`, which the mock catalyst
previously provided.

Changelog:
[Internal]

Differential Revision: D126574364
Summary:
Migrate `ExtraWindowEventListenerTest` from the deprecated
`createCatalystContextForTest` helper to `createTestReactApplicationContext`,
so the test builds a bridgeless context directly. Stub the feature flags
before context creation, since the bridgeless context reads them during init.

Changelog:
[Internal]

Differential Revision: D126574365
Summary:
Pull Request resolved: react#59283

Delete the deprecated `createCatalystContextForTest` and
`createMockCatalystInstance` helpers from `ReactTestHelper`, now that every
caller has migrated to `createTestReactApplicationContext`. Drop the
file-level deprecation suppression and its TODO, which only existed for the
removed helpers.

Changelog:
[Internal]

Reviewed By: javache

Differential Revision: D126576088
@meta-codesync meta-codesync Bot changed the title Delete legacy catalyst test helpers Delete legacy catalyst test helpers (#59283) Oct 21, 2026

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