Newly added lib_2/isolate/weak_reference_message_2_test fails in dartkp-obfuscate

[mkustermann]

There are new test failures on 828dcd0

lib_2/isolate/weak_reference_message_2_test RuntimeError (expected Pass)

are failing on configurations

dartkp-obfuscate-linux-release-x64

[mkustermann]

Surprisingly this test passes in normal dartkp mode which it should not:

void main(List<String> arguments, Object message) async {
  if (arguments.length == 1) {
    assert(arguments[0] == 'helper');
    await runHelper(message as SendPort);
  } else {
    await runTest();
  }
}

Future<void> runTest() async {
  final port = ReceivePort();
  await Isolate.spawnUri(
    Uri.parse('weak_reference_message_2_test.dart'),
    ['helper'],
    port.sendPort,
  );  
  final message = await port.first;
  ...
}

It tries to Isolate.spawnUri() from weak_reference_message_2_test.dart. This is not supported in AOT mode.

It happens to be that the implementation completely ignores the weak_reference_message_2_test.dart argument and uses the same AOT snapshot as the main app is launched from. So the test passes by coincidence.

[mkustermann]

Made cl/232603 that fixes the Isolate.spawnUri implementation.