fix: preserve iOS AX snapshot failures#639
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Jun 1, 2026
… unsupported errors Make RunnerSynthesizedGesture the single iOS multi-touch engine and drop the older incompatible models: - rotateGesture now drives the two-finger XCTest synthesis path (dx=dy=0, scale=1, degrees), mirroring the pinch migration in #634. The native XCUIElement.rotate(withVelocity:) injected a single synthetic rotation that React Native's rotation recognizer did not read reliably; synthesis fixes it. velocity is ignored on iOS (kept in the wire contract for compatibility; rotation direction comes from the sign of degrees). - pinch is now synthesis on iOS and a clear UNSUPPORTED_OPERATION on tvOS/macOS. The macOS coordinate double-tap+drag heuristic (performCoordinatePinch) is removed: synthesis is iOS-only, so macOS multi-touch is reported honestly as unsupported rather than approximated. - RunnerInteractionOutcome.unsupported now carries an actionable hint, mapped to ErrorPayload.hint (#639). Every unsupported gesture/tvOS path returns a concise message plus a next-step hint (existing messages kept verbatim). Net: on iOS, pinch/rotate/transform all flow through one synthesis primitive. swipe/scroll/pan/ fling remain single-finger drags (correct, unchanged). Coverage: examples/test-app/replays/gesture-lab.ad exercises pinch + rotate against the gesture lab and asserts "pinch changed yes" / "rotate changed yes".
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… unsupported errors (#645) * fix(ios): unify multi-touch gestures on two-finger synthesis + hinted unsupported errors Make RunnerSynthesizedGesture the single iOS multi-touch engine and drop the older incompatible models: - rotateGesture now drives the two-finger XCTest synthesis path (dx=dy=0, scale=1, degrees), mirroring the pinch migration in #634. The native XCUIElement.rotate(withVelocity:) injected a single synthetic rotation that React Native's rotation recognizer did not read reliably; synthesis fixes it. velocity is ignored on iOS (kept in the wire contract for compatibility; rotation direction comes from the sign of degrees). - pinch is now synthesis on iOS and a clear UNSUPPORTED_OPERATION on tvOS/macOS. The macOS coordinate double-tap+drag heuristic (performCoordinatePinch) is removed: synthesis is iOS-only, so macOS multi-touch is reported honestly as unsupported rather than approximated. - RunnerInteractionOutcome.unsupported now carries an actionable hint, mapped to ErrorPayload.hint (#639). Every unsupported gesture/tvOS path returns a concise message plus a next-step hint (existing messages kept verbatim). Net: on iOS, pinch/rotate/transform all flow through one synthesis primitive. swipe/scroll/pan/ fling remain single-finger drags (correct, unchanged). Coverage: examples/test-app/replays/gesture-lab.ad exercises pinch + rotate against the gesture lab and asserts "pinch changed yes" / "rotate changed yes". * fix(ios): fail-fast macOS pinch + align capability/docs with synthesis-only Follow-through for removing the macOS coordinate pinch path (the runner now returns UNSUPPORTED_OPERATION for macOS pinch): reject it at admission instead of round-tripping. - capabilities.ts: pinch now matches rotate-gesture/transform-gesture (Android + iOS simulator only); macOS dropped. Removes the now-unused isMacOsOrMobileAppleSimulator helper. - capabilities.test.ts: pinch expected unsupported on macOS and tvOS. - website/docs/docs/commands.md: pinch listed for Android + iOS simulators only (removed from the macOS app-session list); documents that iOS rotate ignores the optional velocity arg (synthesis uses a fixed duration; direction comes from the sign of degrees). Addresses PR #645 review HIGH #2 and MEDIUM #3. * fix(ios): surface a hinted unsupported error for synthesis gestures at admission Removing macOS pinch from the capability matrix makes macOS pinch (and the already-excluded rotate-gesture/transform-gesture on macOS/tvOS/physical iOS) fail fast in ensureGenericCommandReady before reaching the runner. That left the runner's macOS-specific hint unreachable on the daemon path, so callers only saw the generic "<cmd> is not supported on this device". Add an optional unsupportedHint to the capability matrix and surface it at admission, so the synthesis-only gestures fail fast (no runner round-trip) AND return an actionable hint pointing to where they work (Android + iOS simulator). Applied to pinch / rotate-gesture / transform-gesture. Addresses PR #645 review (P2: route macOS pinch to the hinted failure).
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Summary
Preserve iOS XCTest accessibility snapshot serialization failures as typed
IOS_AX_SNAPSHOT_FAILEDerrors instead of letting them look like runner transport failures.Runner responses now carry a recovery hint through the Node client, so users get actionable guidance for scoped snapshots/direct selectors while the runner session remains usable for screenshot/logs/appstate.
Refs #637.
Touched files: 5. Scope stayed within iOS runner snapshot error handling and runner response parsing.
Validation
pnpm formatpnpm exec vitest run src/platforms/ios/__tests__/runner-client.test.tspnpm check:quickpnpm build:xcuitestuptimesucceeded.