✅ Write integration test for Passputter

Author: Peter Bryant

pubspec.yaml

@@ -12,7 +12,9 @@ dependencies:
 
 dev_dependencies:
   import_sorter: ^4.5.0
+  mock_web_server: ^5.0.0-nullsafety.1
   mocktail: ^0.1.2
+  pretty_dio_logger: ^1.2.0-beta-1
   test: ^1.17.3
   time: ^2.0.0
   very_good_analysis: ^2.0.3

test/passputter_test.dart

@@ -0,0 +1,63 @@
+// 📦 Package imports:
+import 'package:dio/dio.dart';
+import 'package:mock_web_server/mock_web_server.dart';
+import 'package:pretty_dio_logger/pretty_dio_logger.dart';
+import 'package:test/test.dart';
+
+// 🌎 Project imports:
+import 'package:passputter/passputter.dart';
+
+void main() {
+  const clientId = 'id';
+  const clientSecret = 'secret';
+
+  late MockWebServer server;
+  late InMemoryTokenStorage storage;
+  late Passputter passputter;
+
+  setUp(() async {
+    server = MockWebServer();
+    storage = InMemoryTokenStorage();
+
+    await server.start();
+
+    passputter = Passputter(
+      dio: Dio()..interceptors.add(PrettyDioLogger()),
+      endpoint: server.url,
+      clientId: clientId,
+      clientSecret: clientSecret,
+      tokenStorage: storage,
+    );
+  });
+
+  tearDown(() {
+    server.shutdown();
+  });
+
+  group('isLoggedIn', () {
+    test('is false when no token is stored', () async {
+      await storage.deleteUserToken();
+
+      expect(passputter.isLoggedIn, isFalse);
+    });
+
+    test('is true after logging in then false after logging out', () async {
+      server.enqueue(
+        body: '''
+        {
+          "access_token": "token",
+          "expires_in": 1000
+        }
+        ''',
+      );
+
+      await passputter.logIn(email: '[email protected]', password: 'password');
+
+      expect(passputter.isLoggedIn, isTrue);
+
+      await passputter.logOut();
+
+      expect(passputter.isLoggedIn, isFalse);
+    });
+  });
+}