Fix nomanservice notificationrecord leak

Test: runtest systemui-notification
Change-Id: Ic5761b917edd000bf73b3291b0ca95bbb0b9bedb
Fixes: 63585648
(cherry picked from commit 080361ee313c4eae07ca1d17edafb371672fc76e)
(cherry picked from commit 61e1f496e86ae94fc522b421afc0ac8c695afc2d)
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index bdea247..c3f9dc9 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -519,7 +519,8 @@
         }
     }
 
-    private final NotificationDelegate mNotificationDelegate = new NotificationDelegate() {
+    @VisibleForTesting
+    final NotificationDelegate mNotificationDelegate = new NotificationDelegate() {
 
         @Override
         public void onSetDisabled(int status) {
@@ -1011,6 +1012,25 @@
     }
 
     @VisibleForTesting
+    int getNotificationRecordCount() {
+        synchronized (mNotificationLock) {
+            int count = mNotificationList.size() + mNotificationsByKey.size()
+                    + mSummaryByGroupKey.size() + mEnqueuedNotifications.size();
+            // subtract duplicates
+            for (NotificationRecord posted : mNotificationList) {
+                if (mNotificationsByKey.containsKey(posted.getKey())) {
+                    count--;
+                }
+                if (posted.sbn.isGroup() && posted.getNotification().isGroupSummary()) {
+                    count --;
+                }
+            }
+
+            return count;
+        }
+    }
+
+    @VisibleForTesting
     void addNotification(NotificationRecord r) {
         mNotificationList.add(r);
         mNotificationsByKey.put(r.sbn.getKey(), r);
@@ -4506,6 +4526,7 @@
                 canceledNotifications = new ArrayList<>();
             }
             notificationList.remove(i);
+            mNotificationsByKey.remove(r.getKey());
             canceledNotifications.add(r);
             cancelNotificationLocked(r, sendDelete, reason, wasPosted);
         }
@@ -4615,6 +4636,7 @@
                 EventLogTags.writeNotificationCancel(callingUid, callingPid, pkg, childSbn.getId(),
                         childSbn.getTag(), userId, 0, 0, reason, listenerName);
                 notificationList.remove(i);
+                mNotificationsByKey.remove(childR.getKey());
                 cancelNotificationLocked(childR, sendDelete, reason, wasPosted);
             }
         }
diff --git a/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java b/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java
index 46c536c..d7815a2 100644
--- a/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/notification/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -302,9 +302,9 @@
         mBinderService.enqueueNotificationWithTag(PKG, "opPkg", "tag", 0,
                 generateNotificationRecord(null).getNotification(), 0);
         waitForIdle();
-        StatusBarNotification[] notifs =
-                mBinderService.getActiveNotifications(PKG);
+        StatusBarNotification[] notifs = mBinderService.getActiveNotifications(PKG);
         assertEquals(1, notifs.length);
+        assertEquals(1, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -316,6 +316,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(PKG);
         assertEquals(0, notifs.length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -330,6 +331,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(PKG);
         assertEquals(0, notifs.length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -342,6 +344,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(sbn.getPackageName());
         assertEquals(0, notifs.length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -354,6 +357,43 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(sbn.getPackageName());
         assertEquals(0, notifs.length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
+    }
+
+    @Test
+    public void testUserInitiatedClearAll_noLeak() throws Exception {
+        final NotificationRecord n = generateNotificationRecord(
+                mTestNotificationChannel, 1, "group", true);
+
+        mBinderService.enqueueNotificationWithTag(PKG, "opPkg", "tag",
+                n.sbn.getId(), n.sbn.getNotification(), n.sbn.getUserId());
+        waitForIdle();
+
+        mNotificationManagerService.mNotificationDelegate.onClearAll(uid, Binder.getCallingPid(),
+                n.getUserId());
+        waitForIdle();
+        StatusBarNotification[] notifs =
+                mBinderService.getActiveNotifications(n.sbn.getPackageName());
+        assertEquals(0, notifs.length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
+    }
+
+    @Test
+    public void testCancelAllNotificationsCancelsChildren() throws Exception {
+        final NotificationRecord parent = generateNotificationRecord(
+                mTestNotificationChannel, 1, "group1", true);
+        final NotificationRecord child = generateNotificationRecord(
+                mTestNotificationChannel, 2, "group1", false);
+
+        mBinderService.enqueueNotificationWithTag(PKG, "opPkg", "tag",
+                parent.sbn.getId(), parent.sbn.getNotification(), parent.sbn.getUserId());
+        mBinderService.enqueueNotificationWithTag(PKG, "opPkg", "tag",
+                child.sbn.getId(), child.sbn.getNotification(), child.sbn.getUserId());
+        waitForIdle();
+
+        mBinderService.cancelAllNotifications(PKG, parent.sbn.getUserId());
+        waitForIdle();
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -365,6 +405,8 @@
         }
         mBinderService.cancelAllNotifications(PKG, sbn.getUserId());
         waitForIdle();
+
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -391,6 +433,8 @@
                 parentAsChild.sbn.getId(), parentAsChild.sbn.getNotification(),
                 parentAsChild.sbn.getUserId());
         waitForIdle();
+
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -404,6 +448,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(sbn.getPackageName());
         assertEquals(1, notifs.length);
+        assertEquals(1, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -417,6 +462,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(sbn.getPackageName());
         assertEquals(1, notifs.length);
+        assertEquals(1, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -429,6 +475,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(sbn.getPackageName());
         assertEquals(0, notifs.length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -442,6 +489,7 @@
         StatusBarNotification[] notifs =
                 mBinderService.getActiveNotifications(sbn.getPackageName());
         assertEquals(1, notifs.length);
+        assertEquals(1, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test
@@ -471,6 +519,7 @@
         mBinderService.cancelNotificationWithTag(PKG, "tag", sbn.getId(), sbn.getUserId());
         waitForIdle();
         assertEquals(0, mBinderService.getActiveNotifications(sbn.getPackageName()).length);
+        assertEquals(0, mNotificationManagerService.getNotificationRecordCount());
     }
 
     @Test