Add test for deserializing v0 serialized notification

Author: aurimasc

com.unity.mobile.notifications/Runtime/Android/Plugins/com/unity/androidnotifications/UnityNotificationUtilities.java

@@ -566,4 +566,53 @@ private static Notification.Builder recoverBuilderPreNougat(Context context, Not
 
         return builder;
     }
+
+    // for testing purposes: copy-paste of what serialization was in version 0
+    // except for hardcoded version 0
+    private static boolean serializeNotificationCustom_v0(Notification notification, DataOutputStream out) {
+        try {
+            out.write(UNITY_MAGIC_NUMBER);
+            out.writeInt(0);  // NOTIFICATION_SERIALIZATION_VERSION
+
+            // serialize extras
+            boolean showWhen = notification.extras.getBoolean(Notification.EXTRA_SHOW_WHEN, false);
+            byte[] extras = serializeParcelable(notification.extras);
+            out.writeInt(extras == null ? 0 : extras.length);
+            if (extras != null && extras.length > 0)
+                out.write(extras);
+            else {
+                // parcelling may fail in case it contains binder object, when that happens serialize manually what we care about
+                out.writeInt(notification.extras.getInt(KEY_ID));
+                serializeString(out, notification.extras.getString(Notification.EXTRA_TITLE));
+                serializeString(out, notification.extras.getString(Notification.EXTRA_TEXT));
+                serializeString(out, notification.extras.getString(KEY_SMALL_ICON));
+                serializeString(out, notification.extras.getString(KEY_LARGE_ICON));
+                out.writeLong(notification.extras.getLong(KEY_FIRE_TIME, -1));
+                out.writeLong(notification.extras.getLong(KEY_REPEAT_INTERVAL, -1));
+                serializeString(out,  Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP ? null : notification.extras.getString(Notification.EXTRA_BIG_TEXT));
+                out.writeBoolean(notification.extras.getBoolean(Notification.EXTRA_SHOW_CHRONOMETER, false));
+                out.writeBoolean(showWhen);
+                serializeString(out, notification.extras.getString(KEY_INTENT_DATA));
+            }
+
+            serializeString(out, Build.VERSION.SDK_INT < Build.VERSION_CODES.O ? null : notification.getChannelId());
+            Integer color = UnityNotificationManager.getNotificationColor(notification);
+            out.writeBoolean(color != null);
+            if (color != null)
+                out.writeInt(color);
+            out.writeInt(notification.number);
+            out.writeBoolean(0 != (notification.flags & Notification.FLAG_AUTO_CANCEL));
+            serializeString(out, notification.getGroup());
+            out.writeBoolean(0 != (notification.flags & Notification.FLAG_GROUP_SUMMARY));
+            out.writeInt(UnityNotificationManager.getNotificationGroupAlertBehavior(notification));
+            serializeString(out, notification.getSortKey());
+            if (showWhen)
+                out.writeLong(notification.when);
+
+            return true;
+        } catch (Exception e) {
+            Log.e(TAG_UNITY, "Failed to serialize notification", e);
+            return false;
+        }
+    }
 }

com.unity.mobile.notifications/Tests/Runtime/Android/AndroidNotificationSimpleTests.cs

@@ -475,4 +475,30 @@ public void CorruptedPrimarySerialization_FallsBack()
         Assert.AreEqual(original.SmallIcon, deserializedData.Notification.SmallIcon);
         Assert.AreEqual(original.LargeIcon, deserializedData.Notification.LargeIcon);
     }
+
+    [Test]
+    [UnityPlatform(RuntimePlatform.Android)]
+    public void CanDeserializeCustomSerializedNotification_v0()
+    {
+        const int notificationId = 245;
+
+        var original = CreateNotificationWithAllParameters();
+
+        AndroidNotificationIntentData deserialized;
+        using (var builder = AndroidNotificationCenter.CreateNotificationBuilder(notificationId, original, kChannelId))
+        {
+            // put something to extrax to force completely custom serialization of them
+            var bitmap = CreateBitmap();
+            Assert.IsNotNull(bitmap);
+            var extras = builder.Call<AndroidJavaObject>("getExtras");
+            extras.Call("putParcelable", "binder_item", bitmap);
+
+            // Serialize like we did in version 0
+            deserialized = SerializeDeserializeNotification(builder, "serializeNotificationCustom_v0");
+        }
+
+        Assert.IsNotNull(deserialized);
+        original.ShowInForeground = true;  // v0 did not have this, so should default to true
+        CheckNotificationsMatch(original, deserialized.Notification);
+    }
 }