Migrate haptic to view model and out of legacy components.

Fix: 272832355
Bug: 288175645
Test: atest PromptViewModelTest AuthContainerViewTest AuthControllerTest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0b64d441089361fa000c09bfaa2e99b0efcfc012)
Merged-In: Ie7181b448b74e4f7322cfad59eced1ac872a9b85
Change-Id: Ie7181b448b74e4f7322cfad59eced1ac872a9b85

packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricView.java

@@ -737,7 +737,7 @@ public abstract class AuthBiometricView extends LinearLayout implements AuthBiom
         });
 
         mUseCredentialButton.setOnClickListener((view) -> {
-            startTransitionToCredentialUI();
+            startTransitionToCredentialUI(false /* isError */);
         });
 
         mConfirmButton.setOnClickListener((view) -> {
@@ -768,9 +768,12 @@ public abstract class AuthBiometricView extends LinearLayout implements AuthBiom
 
     /**
      * Kicks off the animation process and invokes the callback.
+     *
+     * @param isError if this was triggered due to an error and not a user action (unused,
+     *                previously for haptics).
      */
     @Override
-    public void startTransitionToCredentialUI() {
+    public void startTransitionToCredentialUI(boolean isError) {
         updateSize(AuthDialog.SIZE_LARGE);
         mCallback.onAction(Callback.ACTION_USE_DEVICE_CREDENTIAL);
     }

packages/SystemUI/src/com/android/systemui/biometrics/AuthBiometricViewAdapter.kt

@@ -38,7 +38,7 @@ interface AuthBiometricViewAdapter {
 
     fun onHelp(@BiometricAuthenticator.Modality modality: Int, help: String)
 
-    fun startTransitionToCredentialUI()
+    fun startTransitionToCredentialUI(isError: Boolean)
 
     fun requestLayout()
 

packages/SystemUI/src/com/android/systemui/biometrics/AuthContainerView.java

@@ -801,9 +801,9 @@ public class AuthContainerView extends LinearLayout
     }
 
     @Override
-    public void animateToCredentialUI() {
+    public void animateToCredentialUI(boolean isError) {
         if (mBiometricView != null) {
-            mBiometricView.startTransitionToCredentialUI();
+            mBiometricView.startTransitionToCredentialUI(isError);
         } else {
             Log.e(TAG, "animateToCredentialUI(): mBiometricView is null");
         }

packages/SystemUI/src/com/android/systemui/biometrics/AuthController.java

@@ -85,7 +85,6 @@ import com.android.systemui.flags.FeatureFlags;
 import com.android.systemui.keyguard.WakefulnessLifecycle;
 import com.android.systemui.keyguard.data.repository.BiometricType;
 import com.android.systemui.statusbar.CommandQueue;
-import com.android.systemui.statusbar.VibratorHelper;
 import com.android.systemui.util.concurrency.DelayableExecutor;
 import com.android.systemui.util.concurrency.Execution;
 
@@ -185,18 +184,6 @@ public class AuthController implements CoreStartable, CommandQueue.Callbacks,
     private final @Background DelayableExecutor mBackgroundExecutor;
     private final DisplayInfo mCachedDisplayInfo = new DisplayInfo();
 
-    private final VibratorHelper mVibratorHelper;
-
-    private void vibrateSuccess(int modality) {
-        mVibratorHelper.vibrateAuthSuccess(
-                getClass().getSimpleName() + ", modality = " + modality + "BP::success");
-    }
-
-    private void vibrateError(int modality) {
-        mVibratorHelper.vibrateAuthError(
-                getClass().getSimpleName() + ", modality = " + modality + "BP::error");
-    }
-
     @VisibleForTesting
     final TaskStackListener mTaskStackListener = new TaskStackListener() {
         @Override
@@ -776,7 +763,6 @@ public class AuthController implements CoreStartable, CommandQueue.Callbacks,
             @NonNull InteractionJankMonitor jankMonitor,
             @Main Handler handler,
             @Background DelayableExecutor bgExecutor,
-            @NonNull VibratorHelper vibrator,
             @NonNull UdfpsUtils udfpsUtils) {
         mContext = context;
         mFeatureFlags = featureFlags;
@@ -798,7 +784,6 @@ public class AuthController implements CoreStartable, CommandQueue.Callbacks,
         mUdfpsEnrolledForUser = new SparseBooleanArray();
         mSfpsEnrolledForUser = new SparseBooleanArray();
         mFaceEnrolledForUser = new SparseBooleanArray();
-        mVibratorHelper = vibrator;
         mUdfpsUtils = udfpsUtils;
         mApplicationCoroutineScope = applicationCoroutineScope;
 
@@ -987,8 +972,6 @@ public class AuthController implements CoreStartable, CommandQueue.Callbacks,
     public void onBiometricAuthenticated(@Modality int modality) {
         if (DEBUG) Log.d(TAG, "onBiometricAuthenticated: ");
 
-        vibrateSuccess(modality);
-
         if (mCurrentDialog != null) {
             mCurrentDialog.onAuthenticationSucceeded(modality);
         } else {
@@ -1085,8 +1068,6 @@ public class AuthController implements CoreStartable, CommandQueue.Callbacks,
             Log.d(TAG, String.format("onBiometricError(%d, %d, %d)", modality, error, vendorCode));
         }
 
-        vibrateError(modality);
-
         final boolean isLockout = (error == BiometricConstants.BIOMETRIC_ERROR_LOCKOUT)
                 || (error == BiometricConstants.BIOMETRIC_ERROR_LOCKOUT_PERMANENT);
 
@@ -1103,7 +1084,7 @@ public class AuthController implements CoreStartable, CommandQueue.Callbacks,
         if (mCurrentDialog != null) {
             if (mCurrentDialog.isAllowDeviceCredentials() && isLockout) {
                 if (DEBUG) Log.d(TAG, "onBiometricError, lockout");
-                mCurrentDialog.animateToCredentialUI();
+                mCurrentDialog.animateToCredentialUI(true /* isError */);
             } else if (isSoftError) {
                 final String errorMessage = (error == BiometricConstants.BIOMETRIC_PAUSED_REJECTED)
                         ? getNotRecognizedString(modality)

packages/SystemUI/src/com/android/systemui/biometrics/AuthDialog.java

@@ -162,7 +162,7 @@ public interface AuthDialog extends Dumpable {
     /**
      * Animate to credential UI. Typically called after biometric is locked out.
      */
-    void animateToCredentialUI();
+    void animateToCredentialUI(boolean isError);
 
     /**
      * @return true if device credential is allowed.

packages/SystemUI/src/com/android/systemui/biometrics/ui/binder/BiometricViewBinder.kt

@@ -522,6 +522,7 @@ private class Spaghetti(
             viewModel.showTemporaryError(
                 help,
                 messageAfterError = modalities.asDefaultHelpMessage(applicationContext),
+                hapticFeedback = false,
             )
         }
     }
@@ -534,7 +535,7 @@ private class Spaghetti(
             else -> false
         }
 
-    override fun startTransitionToCredentialUI() {
+    override fun startTransitionToCredentialUI(isError: Boolean) {
         applicationScope.launch {
             viewModel.onSwitchToCredential()
             legacyCallback?.onAction(Callback.ACTION_USE_DEVICE_CREDENTIAL)

packages/SystemUI/src/com/android/systemui/biometrics/ui/viewmodel/PromptViewModel.kt

@@ -22,6 +22,7 @@ import com.android.systemui.biometrics.domain.interactor.PromptSelectorInteracto
 import com.android.systemui.biometrics.domain.model.BiometricModalities
 import com.android.systemui.biometrics.domain.model.BiometricModality
 import com.android.systemui.biometrics.shared.model.PromptKind
+import com.android.systemui.statusbar.VibratorHelper
 import javax.inject.Inject
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.coroutineScope
@@ -41,6 +42,7 @@ class PromptViewModel
 @Inject
 constructor(
     private val interactor: PromptSelectorInteractor,
+    private val vibrator: VibratorHelper,
 ) {
     /** The set of modalities available for this prompt */
     val modalities: Flow<BiometricModalities> =
@@ -205,17 +207,19 @@ constructor(
     private var messageJob: Job? = null
 
     /**
-     * Show a temporary error [message] associated with an optional [failedModality].
+     * Show a temporary error [message] associated with an optional [failedModality] and play
+     * [hapticFeedback].
      *
      * An optional [messageAfterError] will be shown via [showAuthenticating] when
      * [authenticateAfterError] is set (or via [showHelp] when not set) after the error is
      * dismissed.
      *
-     * The error is ignored if the user has already authenticated and it is treated as
+     * The error is ignored if the user has already authenticated or if [suppressIfErrorShowing] is
-     * [onSilentError] if [suppressIfErrorShowing] is set and an error message is already showing.
+     * set and an error message is already showing.
      */
     suspend fun showTemporaryError(
         message: String,
+        hapticFeedback: Boolean = true,
         messageAfterError: String = "",
         authenticateAfterError: Boolean = false,
         suppressIfErrorShowing: Boolean = false,
@@ -225,7 +229,9 @@ constructor(
             return@coroutineScope
         }
         if (_message.value.isErrorOrHelp && suppressIfErrorShowing) {
-            onSilentError(failedModality)
+            if (_isAuthenticated.value.isNotAuthenticated) {
+                _canTryAgainNow.value = supportsRetry(failedModality)
+            }
             return@coroutineScope
         }
 
@@ -236,6 +242,10 @@ constructor(
         _message.value = PromptMessage.Error(message)
         _legacyState.value = AuthBiometricView.STATE_ERROR
 
+        if (hapticFeedback) {
+            vibrator.error(failedModality)
+        }
+
         messageJob?.cancel()
         messageJob = launch {
             delay(BiometricPrompt.HIDE_DIALOG_DELAY.toLong())
@@ -247,18 +257,6 @@ constructor(
         }
     }
 
-    /**
-     * Call instead of [showTemporaryError] if an error from the HAL should be silently ignored to
-     * enable retry (if the [failedModality] supports retrying).
-     *
-     * Ignored if the user has already authenticated.
-     */
-    private fun onSilentError(failedModality: BiometricModality = BiometricModality.None) {
-        if (_isAuthenticated.value.isNotAuthenticated) {
-            _canTryAgainNow.value = supportsRetry(failedModality)
-        }
-    }
-
     /**
      * Call to ensure the fingerprint sensor has started. Either when the dialog is first shown
      * (most cases) or when it should be enabled after a first error (coex implicit flow).
@@ -376,6 +374,8 @@ constructor(
                 AuthBiometricView.STATE_AUTHENTICATED
             }
 
+        vibrator.success(modality)
+
         messageJob?.cancel()
         messageJob = null
 
@@ -386,18 +386,18 @@ constructor(
 
     private suspend fun needsExplicitConfirmation(modality: BiometricModality): Boolean {
         val availableModalities = modalities.first()
-        val confirmationRequested = interactor.isConfirmationRequired.first()
+        val confirmationRequired = isConfirmationRequired.first()
 
         if (availableModalities.hasFaceAndFingerprint) {
             // coex only needs confirmation when face is successful, unless it happens on the
             // first attempt (i.e. without failure) before fingerprint scanning starts
+            val fingerprintStarted = fingerprintStartMode.first() != FingerprintStartMode.Pending
             if (modality == BiometricModality.Face) {
-                return (fingerprintStartMode.first() != FingerprintStartMode.Pending) ||
+                return fingerprintStarted || confirmationRequired
-                    confirmationRequested
             }
         }
         if (availableModalities.hasFaceOnly) {
-            return confirmationRequested
+            return confirmationRequired
         }
         // fingerprint only never requires confirmation
         return false
@@ -412,7 +412,6 @@ constructor(
     fun confirmAuthenticated() {
         val authState = _isAuthenticated.value
         if (authState.isNotAuthenticated) {
-            "Cannot show authenticated after authenticated"
             Log.w(TAG, "Cannot confirm authenticated when not authenticated")
             return
         }
@@ -434,6 +433,12 @@ constructor(
         _forceLargeSize.value = true
     }
 
+    private fun VibratorHelper.success(modality: BiometricModality) =
+        vibrateAuthSuccess("$TAG, modality = $modality BP::success")
+
+    private fun VibratorHelper.error(modality: BiometricModality = BiometricModality.None) =
+        vibrateAuthError("$TAG, modality = $modality BP::error")
+
     companion object {
         private const val TAG = "PromptViewModel"
     }

packages/SystemUI/tests/src/com/android/systemui/biometrics/AuthContainerViewTest.kt

@@ -51,6 +51,7 @@ import com.android.systemui.biometrics.ui.viewmodel.PromptViewModel
 import com.android.systemui.flags.FakeFeatureFlags
 import com.android.systemui.flags.Flags
 import com.android.systemui.keyguard.WakefulnessLifecycle
+import com.android.systemui.statusbar.VibratorHelper
 import com.android.systemui.util.concurrency.FakeExecutor
 import com.android.systemui.util.time.FakeSystemClock
 import com.google.common.truth.Truth.assertThat
@@ -99,6 +100,8 @@ open class AuthContainerViewTest : SysuiTestCase() {
     lateinit var windowToken: IBinder
     @Mock
     lateinit var interactionJankMonitor: InteractionJankMonitor
+    @Mock
+    lateinit var vibrator: VibratorHelper
 
     // TODO(b/278622168): remove with flag
     open val useNewBiometricPrompt = false
@@ -325,7 +328,7 @@ open class AuthContainerViewTest : SysuiTestCase() {
             authenticators = BiometricManager.Authenticators.BIOMETRIC_WEAK or
                     BiometricManager.Authenticators.DEVICE_CREDENTIAL
         )
-        container.animateToCredentialUI()
+        container.animateToCredentialUI(false)
         waitForIdleSync()
 
         assertThat(container.hasCredentialView()).isTrue()
@@ -514,7 +517,7 @@ open class AuthContainerViewTest : SysuiTestCase() {
         { authBiometricFingerprintViewModel },
         { promptSelectorInteractor },
         { bpCredentialInteractor },
-        PromptViewModel(promptSelectorInteractor),
+        PromptViewModel(promptSelectorInteractor, vibrator),
         { credentialViewModel },
         Handler(TestableLooper.get(this).looper),
         fakeExecutor

packages/SystemUI/tests/src/com/android/systemui/biometrics/AuthControllerTest.java

@@ -202,9 +202,6 @@ public class AuthControllerTest extends SysuiTestCase {
     private TestableAuthController mAuthController;
     private FakeFeatureFlags mFeatureFlags = new FakeFeatureFlags();
 
-    @Mock
-    private VibratorHelper mVibratorHelper;
-
     @Before
     public void setup() throws RemoteException {
         // TODO(b/278622168): remove with flag
@@ -267,7 +264,6 @@ public class AuthControllerTest extends SysuiTestCase {
                         true /* supportsSelfIllumination */,
                         true /* resetLockoutRequireHardwareAuthToken */));
         when(mFaceManager.getSensorPropertiesInternal()).thenReturn(faceProps);
-        when(mVibratorHelper.hasVibrator()).thenReturn(true);
 
         mAuthController = new TestableAuthController(mContextSpy);
 
@@ -550,7 +546,7 @@ public class AuthControllerTest extends SysuiTestCase {
 
         mAuthController.onBiometricError(BiometricAuthenticator.TYPE_FACE, error, vendorCode);
         verify(mDialog1, never()).onError(anyInt(), anyString());
-        verify(mDialog1).animateToCredentialUI();
+        verify(mDialog1).animateToCredentialUI(eq(true));
     }
 
     @Test
@@ -563,7 +559,7 @@ public class AuthControllerTest extends SysuiTestCase {
 
         mAuthController.onBiometricError(BiometricAuthenticator.TYPE_FACE, error, vendorCode);
         verify(mDialog1, never()).onError(anyInt(), anyString());
-        verify(mDialog1).animateToCredentialUI();
+        verify(mDialog1).animateToCredentialUI(eq(true));
     }
 
     @Test
@@ -578,7 +574,7 @@ public class AuthControllerTest extends SysuiTestCase {
         mAuthController.onBiometricError(modality, error, vendorCode);
         verify(mDialog1).onError(
                 eq(modality), eq(FaceManager.getErrorString(mContext, error, vendorCode)));
-        verify(mDialog1, never()).animateToCredentialUI();
+        verify(mDialog1, never()).animateToCredentialUI(eq(true));
     }
 
     @Test
@@ -593,7 +589,7 @@ public class AuthControllerTest extends SysuiTestCase {
         mAuthController.onBiometricError(modality, error, vendorCode);
         verify(mDialog1).onError(
                 eq(modality), eq(FaceManager.getErrorString(mContext, error, vendorCode)));
-        verify(mDialog1, never()).animateToCredentialUI();
+        verify(mDialog1, never()).animateToCredentialUI(eq(true));
     }
 
     @Test
@@ -1012,7 +1008,7 @@ public class AuthControllerTest extends SysuiTestCase {
                     () -> mBiometricPromptCredentialInteractor, () -> mPromptSelectionInteractor,
                     () -> mCredentialViewModel, () -> mPromptViewModel,
                     mInteractionJankMonitor, mHandler,
-                    mBackgroundExecutor, mVibratorHelper, mUdfpsUtils);
+                    mBackgroundExecutor, mUdfpsUtils);
         }
 
         @Override

packages/SystemUI/tests/src/com/android/systemui/biometrics/ui/viewmodel/PromptViewModelTest.kt

@@ -32,6 +32,8 @@ import com.android.systemui.biometrics.extractAuthenticatorTypes
 import com.android.systemui.biometrics.faceSensorPropertiesInternal
 import com.android.systemui.biometrics.fingerprintSensorPropertiesInternal
 import com.android.systemui.coroutines.collectLastValue
+import com.android.systemui.statusbar.VibratorHelper
+import com.android.systemui.util.mockito.any
 import com.google.common.truth.Truth.assertThat
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.first
@@ -45,6 +47,9 @@ import org.junit.Test
 import org.junit.runner.RunWith
 import org.junit.runners.Parameterized
 import org.mockito.Mock
+import org.mockito.Mockito.never
+import org.mockito.Mockito.times
+import org.mockito.Mockito.verify
 import org.mockito.junit.MockitoJUnit
 
 private const val USER_ID = 4
@@ -58,6 +63,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     @JvmField @Rule var mockitoRule = MockitoJUnit.rule()
 
     @Mock private lateinit var lockPatternUtils: LockPatternUtils
+    @Mock private lateinit var vibrator: VibratorHelper
 
     private val testScope = TestScope()
     private val promptRepository = FakePromptRepository()
@@ -70,11 +76,11 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
         selector = PromptSelectorInteractorImpl(promptRepository, lockPatternUtils)
         selector.resetPrompt()
 
-        viewModel = PromptViewModel(selector)
+        viewModel = PromptViewModel(selector, vibrator)
     }
 
     @Test
-    fun `start idle and show authenticating`() =
+    fun start_idle_and_show_authenticating() =
         runGenericTest(doNotStart = true) {
             val expectedSize =
                 if (testCase.shouldStartAsImplicitFlow) PromptSize.SMALL else PromptSize.MEDIUM
@@ -107,7 +113,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
         }
 
     @Test
-    fun `shows authenticated - no errors`() = runGenericTest {
+    fun shows_authenticated_with_no_errors() = runGenericTest {
         // this case can't happen until fingerprint is started
         // trigger it now since no error has occurred in this test
         val forceError = testCase.isCoex && testCase.authenticatedByFingerprint
@@ -124,6 +130,22 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
         )
     }
 
+    @Test
+    fun plays_haptic_on_authenticated() = runGenericTest {
+        viewModel.showAuthenticated(testCase.authenticatedModality, 1000L)
+
+        verify(vibrator).vibrateAuthSuccess(any())
+        verify(vibrator, never()).vibrateAuthError(any())
+    }
+
+    @Test
+    fun plays_no_haptic_on_confirm() = runGenericTest {
+        viewModel.confirmAuthenticated()
+
+        verify(vibrator, never()).vibrateAuthSuccess(any())
+        verify(vibrator, never()).vibrateAuthError(any())
+    }
+
     private suspend fun TestScope.showAuthenticated(
         authenticatedModality: BiometricModality,
         expectConfirmation: Boolean,
@@ -172,7 +194,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `shows temporary errors`() = runGenericTest {
+    fun shows_temporary_errors() = runGenericTest {
         val checkAtEnd = suspend { assertButtonsVisible(negative = true) }
 
         showTemporaryErrors(restart = false) { checkAtEnd() }
@@ -180,6 +202,22 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
         showTemporaryErrors(restart = true) { checkAtEnd() }
     }
 
+    @Test
+    fun plays_haptic_on_errors() = runGenericTest {
+        viewModel.showTemporaryError("so sad", hapticFeedback = true)
+
+        verify(vibrator).vibrateAuthError(any())
+        verify(vibrator, never()).vibrateAuthSuccess(any())
+    }
+
+    @Test
+    fun plays_haptic_on_errors_unless_skipped() = runGenericTest {
+        viewModel.showTemporaryError("still sad", hapticFeedback = false)
+
+        verify(vibrator, never()).vibrateAuthError(any())
+        verify(vibrator, never()).vibrateAuthSuccess(any())
+    }
+
     private suspend fun TestScope.showTemporaryErrors(
         restart: Boolean,
         helpAfterError: String = "",
@@ -233,7 +271,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `no errors or temporary help after authenticated`() = runGenericTest {
+    fun no_errors_or_temporary_help_after_authenticated() = runGenericTest {
         val authenticating by collectLastValue(viewModel.isAuthenticating)
         val authenticated by collectLastValue(viewModel.isAuthenticated)
         val message by collectLastValue(viewModel.message)
@@ -277,7 +315,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `authenticated at most once`() = runGenericTest {
+    fun authenticated_at_most_once() = runGenericTest {
         val authenticating by collectLastValue(viewModel.isAuthenticating)
         val authenticated by collectLastValue(viewModel.isAuthenticated)
 
@@ -293,7 +331,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `authenticating cannot restart after authenticated`() = runGenericTest {
+    fun authenticating_cannot_restart_after_authenticated() = runGenericTest {
         val authenticating by collectLastValue(viewModel.isAuthenticating)
         val authenticated by collectLastValue(viewModel.isAuthenticated)
 
@@ -309,7 +347,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `confirm authentication`() = runGenericTest {
+    fun confirm_authentication() = runGenericTest {
         val expectConfirmation = testCase.expectConfirmation(atLeastOneFailure = false)
 
         viewModel.showAuthenticated(testCase.authenticatedModality, 0)
@@ -341,7 +379,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `cannot confirm unless authenticated`() = runGenericTest {
+    fun cannot_confirm_unless_authenticated() = runGenericTest {
         val authenticating by collectLastValue(viewModel.isAuthenticating)
         val authenticated by collectLastValue(viewModel.isAuthenticated)
 
@@ -360,7 +398,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `shows help - before authenticated`() = runGenericTest {
+    fun shows_help_before_authenticated() = runGenericTest {
         val helpMessage = "please help yourself to some cookies"
         val message by collectLastValue(viewModel.message)
         val messageVisible by collectLastValue(viewModel.isIndicatorMessageVisible)
@@ -379,7 +417,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `shows help - after authenticated`() = runGenericTest {
+    fun shows_help_after_authenticated() = runGenericTest {
         val expectConfirmation = testCase.expectConfirmation(atLeastOneFailure = false)
         val helpMessage = "more cookies please"
         val authenticating by collectLastValue(viewModel.isAuthenticating)
@@ -409,7 +447,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `retries after failure`() = runGenericTest {
+    fun retries_after_failure() = runGenericTest {
         val errorMessage = "bad"
         val helpMessage = "again?"
         val expectTryAgainButton = testCase.isFaceOnly
@@ -455,7 +493,7 @@ internal class PromptViewModelTest(private val testCase: TestCase) : SysuiTestCa
     }
 
     @Test
-    fun `switch to credential fallback`() = runGenericTest {
+    fun switch_to_credential_fallback() = runGenericTest {
         val size by collectLastValue(viewModel.size)
 
         // TODO(b/251476085): remove Spaghetti, migrate logic, and update this test