Externalized API and models as own package

integration_test/login/login_integration_test.dart

@@ -0,0 +1,17 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+
+void main() {
+  final binding = IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+  
+  testWidgets('screenshot', (WidgetTester tester) async {
+    // Build the app.
+
+    // This is required prior to taking the screenshot (Android only).
+    await binding.convertFlutterSurfaceToImage();
+
+    // Trigger a frame.
+    await tester.pumpAndSettle();
+    await binding.takeScreenshot('screenshot-1');
+  });
+}