[verified] Publish ReelBox source under GPLv3

test/download_android_permission_test.dart

@@ -0,0 +1,60 @@
+// Exercise the pinned Android protocol without constructing connectivity/jobs.
+// ignore: implementation_imports
+import 'package:background_downloader/src/permissions.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+  const channel = MethodChannel('com.bbflight.background_downloader');
+  final messenger =
+      TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger;
+
+  tearDown(() => messenger.setMockMethodCallHandler(channel, null));
+
+  test(
+    'failed permission dispatch releases slot for the next request',
+    () async {
+      final service = AndroidPermissionsService();
+      var calls = 0;
+      messenger.setMockMethodCallHandler(channel, (call) async {
+        if (++calls == 1) {
+          throw PlatformException(
+            code: 'activity_detached',
+            message: 'No activity',
+          );
+        }
+        service.onPermissionRequestResult(PermissionStatus.granted);
+        return true;
+      });
+      await expectLater(
+        service.request(PermissionType.notifications),
+        throwsA(isA<PlatformException>()),
+      );
+      expect(
+        await service.request(PermissionType.notifications),
+        PermissionStatus.granted,
+      );
+      expect(calls, 2);
+    },
+  );
+
+  test(
+    'notification result preceding native request reply completes request',
+    () async {
+      final service = AndroidPermissionsService();
+      messenger.setMockMethodCallHandler(channel, (call) async {
+        expect(call.method, 'requestPermission');
+        expect(call.arguments, PermissionType.notifications.index);
+        // Android may deliver its activity callback before the method reply.
+        service.onPermissionRequestResult(PermissionStatus.denied);
+        return true;
+      });
+      expect(
+        await service.request(PermissionType.notifications),
+        PermissionStatus.denied,
+      );
+      expect(service.permissionStatusCompleter, isNull);
+    },
+  );
+}