run method
Runs this command.
The return value is wrapped in a Future if necessary and returned by
CommandRunner.runCommand.
Implementation
@override
FutureOr<int> run() async {
exitIfNotValidDartPackage();
await generateTestBundle(packageRoot: getPackageRoot());
await Process.run(
'dart', ['format', '${getPackageRoot()}/test/test_bundle/bundle.dart']);
return 0;
}