ci: e2e tests (#9)

src/my_plugin/example/integration_test/app_test.dart

@@ -0,0 +1,30 @@
+import 'dart:io';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+
+import 'package:my_plugin_example/main.dart' as app;
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  group('E2E', () {
+    testWidgets('getPlatformName', (tester) async {
+      app.main();
+      await tester.pumpAndSettle();
+      await tester.tap(find.text('Get Platform Name'));
+      await tester.pumpAndSettle();
+      final expected = expectedPlatformName();
+      await tester.ensureVisible(find.text('Platform Name: $expected'));
+    });
+  });
+}
+
+String expectedPlatformName() {
+  if (Platform.isAndroid) return 'Android';
+  if (Platform.isIOS) return 'iOS';
+  if (Platform.isLinux) return 'Linux';
+  if (Platform.isMacOS) return 'MacOS';
+  if (Platform.isWindows) return 'Windows';
+  throw UnsupportedError('Unsupported platform ${Platform.operatingSystem}');
+}

src/my_plugin/example/pubspec.yaml

@@ -19,6 +19,10 @@ dependencies:
     path: ../
 
 dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  integration_test:
+    sdk: flutter
   very_good_analysis: ^2.4.0
 
 flutter:

src/my_plugin/pubspec.yaml

@@ -37,9 +37,9 @@ dependencies:
   my_plugin_windows:
     path: ../my_plugin_windows
 
-dev_dependencies:  
+dev_dependencies:
   flutter_test:
-    sdk: flutter  
+    sdk: flutter
   mocktail: ^0.2.0
   plugin_platform_interface: ^2.0.0
   very_good_analysis: ^2.4.0