Fix FingerprintManager NPE

Test: atest CentralSurfacesImpl
Fixes: 298355063
Change-Id: I45e3b0ebb857c228159aebd8f06f850e40aedfcf
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
index 0277a36..acfae27 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
@@ -2678,6 +2678,7 @@
                                     && mStatusBarStateController.getDozeAmount() == 1f
                                     && mWakefulnessLifecycle.getLastWakeReason()
                                     == PowerManager.WAKE_REASON_POWER_BUTTON
+                                    && mFingerprintManager.get() != null
                                     && mFingerprintManager.get().isPowerbuttonFps()
                                     && mKeyguardUpdateMonitor
                                     .getCachedIsUnlockWithFingerprintPossible(
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/CentralSurfacesImplTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/CentralSurfacesImplTest.java
index 4e3690f..c19159a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/CentralSurfacesImplTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/CentralSurfacesImplTest.java
@@ -398,7 +398,6 @@
 
         when(mGradientColors.supportsDarkText()).thenReturn(true);
         when(mColorExtractor.getNeutralColors()).thenReturn(mGradientColors);
-        ConfigurationController configurationController = new ConfigurationControllerImpl(mContext);
 
         when(mLockscreenWallpaperLazy.get()).thenReturn(mLockscreenWallpaper);
         when(mBiometricUnlockControllerLazy.get()).thenReturn(mBiometricUnlockController);
@@ -437,6 +436,11 @@
         when(mUserTracker.getUserHandle()).thenReturn(
                 UserHandle.of(ActivityManager.getCurrentUser()));
 
+        createCentralSurfaces();
+    }
+
+    private void createCentralSurfaces() {
+        ConfigurationController configurationController = new ConfigurationControllerImpl(mContext);
         mCentralSurfaces = new CentralSurfacesImpl(
                 mContext,
                 mNotificationsController,
@@ -1082,6 +1086,27 @@
         verify(mNotificationPanelViewController).setTouchAndAnimationDisabled(true);
     }
 
+    /** Regression test for b/298355063 */
+    @Test
+    public void fingerprintManagerNull_noNPE() {
+        // GIVEN null fingerprint manager
+        mFingerprintManager = null;
+        createCentralSurfaces();
+
+        // GIVEN should animate doze wakeup
+        when(mDozeServiceHost.shouldAnimateWakeup()).thenReturn(true);
+        when(mBiometricUnlockController.getMode()).thenReturn(
+                BiometricUnlockController.MODE_ONLY_WAKE);
+        when(mDozeServiceHost.isPulsing()).thenReturn(false);
+        when(mStatusBarStateController.getDozeAmount()).thenReturn(1f);
+
+        // WHEN waking up from the power button
+        mWakefulnessLifecycle.dispatchStartedWakingUp(PowerManager.WAKE_REASON_POWER_BUTTON);
+        mCentralSurfaces.mWakefulnessObserver.onStartedWakingUp();
+
+        // THEN no NPE when fingerprintManager is null
+    }
+
     /**
      * Configures the appropriate mocks and then calls {@link CentralSurfacesImpl#updateIsKeyguard}
      * to reconfigure the keyguard to reflect the requested showing/occluded states.