Forward press handlers as testOnly_* in PressableWithTouchable

[huextrat]

Description

Fixes #4417.

Since 3.2.0, Pressable dispatches between two engines: StatefulPressable when one of the
relation props (simultaneousWith / requireToFail / block) is passed, and
PressableWithTouchable otherwise — the common case.

Only StatefulPressable sets testOnly_onPress / testOnly_onPressIn / testOnly_onPressOut /
testOnly_onLongPress on the button. PressableWithTouchable doesn't, so for a plain
<Pressable onPress={...}> React Native Testing Library finds no handler and
fireEvent(element, 'press') silently does nothing.

The press state machine runs natively, so in a test environment those props are the only way to
reach the handlers. This makes the regression silent and fairly wide-reaching: no error is
thrown, tests just stop observing presses. On 3.1.0 the single v3 Pressable always forwarded
them, so this is a 3.1.0 → 3.2.0 regression for any app whose Jest suite drives a Pressable.

The fix forwards the four handlers from PressableWithTouchable too, guarded by isTestEnv(),
exactly as StatefulPressable does. Touchable spreads its remaining props onto
GestureHandlerButton, which already declares them in ButtonProps, so nothing else needed to
change and the props stay stripped outside a test environment.

Note this is unrelated to #4414, which fixed the testOnly_pressed display state.

Test plan

Added a regression test in src/__tests__/mocks.test.tsx asserting the four testOnly_* props
are wired on the button for a relation-free Pressable. It fails on main and passes with the
fix.

The test asserts the props rather than calling fireEvent(element, 'press') because this repo is
on @testing-library/react-native@12.9, which predates the testOnly_* handler lookup (added in
v13). Asserting the props keeps the test meaningful on the pinned version and independent of the
RNTL version.

In packages/react-native-gesture-handler:

• yarn test — 16 suites, 135 tests passing
• yarn ts-check — clean
• yarn lint:js — 0 errors
• yarn format:js — clean

Also verified end-to-end in a real app (Expo 57 / RN 0.86, RNTL 14.0.1) that had ~3 suites broken
by the 3.1.0 → 3.2.0 bump: with this change applied as a patch, the full suite is green again
(136 suites, 1663 tests, 73 snapshots).

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 729f145e-2fa8-4eb7-9c04-6c3ef95414ab

📥 Commits

Reviewing files that changed from the base of the PR and between 44046a6 and 5a40375.

📒 Files selected for processing (2)

• packages/react-native-gesture-handler/src/__tests__/mocks.test.tsx
• packages/react-native-gesture-handler/src/v3/components/PressableWithTouchable.tsx

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📝 Walkthrough

Summary by CodeRabbit

• Bug Fixes

  • Improved test-environment handling for press interactions.
  • Ensured Pressable correctly forwards press, long-press, press-in, and press-out callbacks during testing.

• Tests

  • Added coverage verifying that all supported press handlers are forwarded correctly.

Walkthrough

Changes

Pressable test callback forwarding

Layer / File(s)	Summary
Environment-gated callback forwarding packages/react-native-gesture-handler/src/v3/components/PressableWithTouchable.tsx	PressableWithTouchable forwards press, press-in, press-out, and long-press handlers through test-only Touchable props when isTestEnv is true.
Callback forwarding validation packages/react-native-gesture-handler/src/__tests__/mocks.test.tsx	The test renders Pressable with four handlers and verifies the corresponding testOnly_* props on the rendered button.

Possibly related PRs

• software-mansion/react-native-gesture-handler#4411: Introduces the PressableWithTouchable implementation that this change extends.
• software-mansion/react-native-gesture-handler#4414: Changes related testOnly_* behavior in PressableWithTouchable.

Suggested reviewers: m-bert

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly and concisely describes the main change: forwarding press handlers as testOnly_* props in PressableWithTouchable.

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[Copilot]

Pull request overview

This PR fixes a testing regression in the v3 Pressable implementation where the common (relation-free) engine (PressableWithTouchable) did not forward press handlers via testOnly_* props, preventing React Native Testing Library from reaching user handlers in a Jest environment.

Changes:

• Forward onPress / onPressIn / onPressOut / onLongPress from PressableWithTouchable onto the underlying button as testOnly_* props, gated by isTestEnv().
• Add a Jest regression test asserting these testOnly_* props are present for a relation-free v3 Pressable.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
packages/react-native-gesture-handler/src/v3/components/PressableWithTouchable.tsx	Adds isTestEnv() gating and forwards testOnly_* handler props in the Touchable-based v3 Pressable engine.
packages/react-native-gesture-handler/src/tests/mocks.test.tsx	Adds a regression test verifying v3 Pressable exposes the four testOnly_* handler props on the rendered button.

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