testTemplate function
Implementation
String testTemplate(String projectName) => '''
import 'package:flutter_test/flutter_test.dart';
import 'package:$projectName/main.dart';
void main() {
testWidgets('${StringUtils.toPascalCase(projectName)} Project test', (WidgetTester tester) async {
await tester.pumpWidget(const ${StringUtils.toPascalCase(projectName)}());
});
}
''';