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iOS: alert dismiss taps "Allow" on the App Tracking Transparency prompt

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Valutazione

Difficoltà
2/5
Tempo stimato
1-3 ore
Idoneità per principianti
62/100
Tipo di issue
Bug
Chiarezza
Specificata chiaramente
Stato di attività
Attiva
Stack tecnologico
ios, swift
Ambito
mobile, testing

Direzione di ricerca

Il bug si trova in chooseAlertButton in apple/runner/AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests+Alert.swift, dove il fallback di dismiss restituisce buttons.last. Inizia dall'elenco di etichette di isDismissButton e dal ramo dismiss, confrontandoli con il controllo già presente nel ramo accept. È completato quando "Ask App Not to Track" viene riconosciuto come etichetta di dismiss oppure il fallback di dismiss non sceglie mai un pulsante in stile accept, e il prompt ATT lascia il tracciamento come denied in un'esecuzione su simulatore.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

bug ready-for-agent

Problem

On an iOS simulator, alert dismiss on the App Tracking Transparency prompt (buttons "Ask App Not to Track" and "Allow") taps "Allow". The command prints dismissed and exits 0, but iOS records an authorization, exactly as after alert accept.

Nothing in the output reveals it: a test that dismisses the prompt to decline tracking silently runs the app with tracking authorized.

Environment

  • agent-device 0.21.24 (code unchanged in 0.21.27, 0.21.28-nightly.20261014.57 and main at 542fb77, see Cause)
  • macOS 26.6.2, Xcode 27.0, Node 24.21.0
  • Simulator: iPhone 17, iOS 27.0, English locale
  • Target app: an Expo development build that calls requestTrackingAuthorization on launch

Reproduction

xcrun simctl privacy "$SIM" reset all <bundle id>        # ATT status back to notDetermined
npx agent-device open <bundle id> --platform ios --udid "$SIM" --relaunch
npx agent-device alert wait 15000                         # "Allow “<app>” to track your activity across other companies’ apps and websites?"
npx agent-device alert dismiss                            # "dismissed", exit code 0
sqlite3 ~/Library/Developer/CoreSimulator/Devices/"$SIM"/data/Library/TCC/TCC.db \
  "select auth_value from access where service='kTCCServiceUserTracking' and client='<bundle id>'"

The development build was opened with --launch-url and its dev-client deep link; any app that requests tracking authorization on launch shows the same prompt. auth_value is 0 when tracking is denied and 2 when it is authorized.

Response to the prompt Runs auth_value
alert dismiss 4 2 (authorized), 4 of 4
alert accept — 2 (authorized)
find text "Ask App Not to Track" click, or click on the button ref 4 0 (denied), 4 of 4

Cause

chooseAlertButton in RunnerTests+Alert.swift:

return buttons.first(where: { isDismissButton($0.label) }) ?? buttons.last

"Ask App Not to Track" is not in the isDismissButton list (cancel, close, dismiss, don't allow, not now, no, keep browsing, later), so dismiss falls back to buttons.last, which is "Allow" on this prompt.

The accept branch already guards against the symmetric mistake: when no accept label matches, it only taps a lone button that is not a dismiss button. The dismiss branch has no such guard and can tap a button that isAcceptButton recognizes ("allow").

Suggested fix

Either or both:

  • add "ask app not to track" to the dismiss labels;
  • in the dismiss fallback, never pick a button that isAcceptButton matches (e.g. the last button that is not an accept button), and fail when every button is an accept button, rather than tap one.

The second keeps dismiss from authorizing on any prompt whose decline label is unknown, including localized ones.

Expected behavior

alert dismiss on the App Tracking Transparency prompt taps "Ask App Not to Track", or fails without tapping, and never records an authorization.

Lingua principale
TypeScript
Stelle
5k
Fork
334
Merge medio
12h 29m
PR unite (30g)
663

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