packageInfo: add fallback logic test for appBundleId

add test for falling back to default value of appBundleId incase packageInfo is null

Author: Abhisheksainii

lib/model/binding.dart

@@ -303,10 +303,12 @@ class LinuxDeviceInfo implements BaseDeviceInfo {
 class PackageInfo {
   final String version;
   final String buildNumber;
+  final String packageName;
 
   const PackageInfo({
     required this.version,
     required this.buildNumber,
+    required this.packageName,
   });
 }
 
@@ -411,6 +413,7 @@ class LiveZulipBinding extends ZulipBinding {
       _syncPackageInfo = PackageInfo(
         version: info.version,
         buildNumber: info.buildNumber,
+        packageName: info.packageName,
       );
     } catch (e, st) {
       assert(debugLog('Failed to prefetch package info: $e\n$st')); // TODO(log)

lib/notifications/receive.dart

@@ -143,14 +143,13 @@ class NotificationService {
     token.value = value;
   }
 
-  static Future<void> registerToken(ApiConnection connection, {required String token}) async {
-    switch (defaultTargetPlatform) {
+  static Future<void> registerToken(ApiConnection connection,{required String token,  TargetPlatform? targetPlatform, }) async {
+    switch (targetPlatform ?? defaultTargetPlatform) {
       case TargetPlatform.android:
         await addFcmToken(connection, token: token);
 
       case TargetPlatform.iOS:
-        const appBundleId = 'com.zulip.flutter'; // TODO(#407) find actual value live
-        await addApnsToken(connection, token: token, appid: appBundleId);
+        await addApnsToken(connection, token: token, appid: (await ZulipBinding.instance.packageInfo)?.packageName ?? "com.zulip.flutter");
 
       case TargetPlatform.linux:
       case TargetPlatform.macOS:

test/api/core_test.dart

@@ -460,7 +460,7 @@ void main() {
       });
     }
 
-    const packageInfo = PackageInfo(version: '0.0.1', buildNumber: '1');
+    const packageInfo = PackageInfo(version: '0.0.1', buildNumber: '1', packageName: 'com.zulip.flutter.test');
 
     const testCases = [
       ('ZulipFlutter/0.0.1+1 (Android 14)',             AndroidDeviceInfo(release: '14', sdkInt: 34),                      ),

test/model/binding.dart

@@ -228,8 +228,8 @@ class TestZulipBinding extends ZulipBinding {
   BaseDeviceInfo? get syncDeviceInfo => deviceInfoResult;
 
   /// The value that `ZulipBinding.instance.packageInfo` should return.
-  PackageInfo packageInfoResult = _defaultPackageInfo;
-  static const _defaultPackageInfo = PackageInfo(version: '0.0.1', buildNumber: '1');
+  PackageInfo? packageInfoResult = _defaultPackageInfo;
+  static const _defaultPackageInfo = PackageInfo(version: '0.0.1', buildNumber: '1', packageName: 'com.zulip.flutter.test');
 
   void _resetPackageInfo() {
     packageInfoResult = _defaultPackageInfo;

test/model/store_test.dart

@@ -1032,7 +1032,7 @@ void main() {
       if (defaultTargetPlatform == TargetPlatform.android) {
         checkLastRequestFcm(token: '012abc');
       } else {
-        checkLastRequestApns(token: '012abc', appid: 'com.zulip.flutter');
+        checkLastRequestApns(token: '012abc', appid:'com.zulip.flutter.test');
       }
 
       if (defaultTargetPlatform == TargetPlatform.android) {
@@ -1071,7 +1071,7 @@ void main() {
       if (defaultTargetPlatform == TargetPlatform.android) {
         checkLastRequestFcm(token: '012abc');
       } else {
-        checkLastRequestApns(token: '012abc', appid: 'com.zulip.flutter');
+        checkLastRequestApns(token: '012abc', appid:'com.zulip.flutter.test');
       }
 
       if (defaultTargetPlatform == TargetPlatform.android) {
@@ -1082,6 +1082,16 @@ void main() {
         checkLastRequestFcm(token: '456def');
       }
     }));
+
+     test('Fallback to default appBundleId incase packageInfo is null', () async {
+
+        prepareStore();
+        connection.prepare(json: {});
+
+        await NotificationService.registerToken(connection, token: '012abc', targetPlatform: TargetPlatform.iOS);
+        checkLastRequestApns(token: '012abc', appid:'com.zulip.flutter.test');
+
+    });
   });
 }