[cloud_firestore] Fix test that used FirebaseApp.channel (#1476)

* [cloud_firestore] Fix test that used FirebaseApp.channel

* dartfmt

* bump version

Author: Harry Terkelsen

packages/cloud_firestore/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.12.10+3
+
+* Fixed test that used `FirebaseApp.channel`.
+
 ## 0.12.10+2
 
 * Fixed analyzer warnings about unused fields.

packages/cloud_firestore/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter plugin for Cloud Firestore, a cloud-hosted, noSQL database
   live synchronization and offline support on Android and iOS.
 author: Flutter Team <[email protected]>
 homepage: https://github.com/FirebaseExtended/flutterfire/tree/master/packages/cloud_firestore
-version: 0.12.10+2
+version: 0.12.10+3
 
 flutter:
   plugin:

packages/cloud_firestore/test/cloud_firestore_test.dart

@@ -28,10 +28,13 @@ void main() {
       "hasPendingWrites": false,
       "isFromCache": false,
     };
+    const MethodChannel firebaseCoreChannel =
+        MethodChannel('plugins.flutter.io/firebase_core');
+
     setUp(() async {
       mockHandleId = 0;
       // Required for FirebaseApp.configure
-      FirebaseApp.channel.setMockMethodCallHandler(
+      firebaseCoreChannel.setMockMethodCallHandler(
         (MethodCall methodCall) async {},
       );
       app = await FirebaseApp.configure(