MOD: added integration test and removed debug test

example/integration_test/simple_test.dart

@@ -1,11 +0,0 @@
-import 'package:integration_test/integration_test.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:ccc_cryptography/ccc_cryptography.dart';
-
-void main() {
-  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
-  setUpAll(() async => await RustLib.init());
-  test('Can call rust function', () async {
-    expect(greet(name: "Tom"), "Hello, Tom!");
-  });
-}

example/test_driver/integration_test.dart

@@ -0,0 +1,3 @@
+import 'package:integration_test/integration_test_driver.dart';
+
+Future<void> main() => integrationDriver();