Fix test failures on HSUM build

- In setup, call switch user which will set up the mocks for
  the user on the device -- necessary for HSUM build where
  the user isn't 0
- Set the user on the group entry builder (it defaults
  to 0 which will fail on HSUM).

Flag: EXEMPT test fix
Test: atest BubblesTest on HSUM build
      (lunch tangorpro_hsum-trunk_staging-eng)
Bug: 384280396
Change-Id: Ifec01bba0494988351058f1f96bacb8ac098df6a
diff --git a/packages/SystemUI/multivalentTests/src/com/android/systemui/statusbar/notification/row/NotificationTestHelper.java b/packages/SystemUI/multivalentTests/src/com/android/systemui/statusbar/notification/row/NotificationTestHelper.java
index c376fad..0c116f1 100644
--- a/packages/SystemUI/multivalentTests/src/com/android/systemui/statusbar/notification/row/NotificationTestHelper.java
+++ b/packages/SystemUI/multivalentTests/src/com/android/systemui/statusbar/notification/row/NotificationTestHelper.java
@@ -359,6 +359,7 @@
                 .setUid(UID)
                 .setInitialPid(2000)
                 .setNotification(summary)
+                .setUser(USER_HANDLE)
                 .setParent(GroupEntry.ROOT_ENTRY)
                 .build();
         GroupEntryBuilder groupEntry = new GroupEntryBuilder()
diff --git a/packages/SystemUI/tests/src/com/android/systemui/wmshell/BubblesTest.java b/packages/SystemUI/tests/src/com/android/systemui/wmshell/BubblesTest.java
index 341bd3a..a8cd9ed 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/wmshell/BubblesTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/wmshell/BubblesTest.java
@@ -136,7 +136,6 @@
 import com.android.systemui.statusbar.SysuiStatusBarStateController;
 import com.android.systemui.statusbar.notification.NotifPipelineFlags;
 import com.android.systemui.statusbar.notification.collection.GroupEntry;
-import com.android.systemui.statusbar.notification.collection.GroupEntryBuilder;
 import com.android.systemui.statusbar.notification.collection.NotifPipeline;
 import com.android.systemui.statusbar.notification.collection.NotificationEntry;
 import com.android.systemui.statusbar.notification.collection.NotificationEntryBuilder;
@@ -605,6 +604,9 @@
         // Get a reference to KeyguardStateController.Callback
         verify(mKeyguardStateController, atLeastOnce())
                 .addCallback(mKeyguardStateControllerCallbackCaptor.capture());
+
+        // Make sure mocks are set up for current user
+        switchUser(ActivityManager.getCurrentUser());
     }
 
     @After