message: Sort backend testcases
diff: @@ -94,8 +94,8 @@ class BackendTest(object):
  # For backward compatibility - create a suite to aggregate them all
  self.tests = type(str('OnnxBackendTest'), (self._base_case,), {})
  - for case in self.test_cases.values():
  - for name, func in case.__dict__.items():
  + for _, case in sorted(self.test_cases.items()):
  + for name, func in sorted(case.__dict__.items()):
  if name.startswith('test_'):
  setattr(self.tests, name, func)
  