def test_promote_command_error(self):
task_control = FakeTaskControl(promote_cmd="exit 1")
runner = MysosTaskRunner(
self._self_instance,
self._client,
"/home/test/my_cluster",
NoopPackageInstaller(),
task_control,
self._state_manager)
manager = ClusterManager(self._client, "/home/test/my_cluster")
runner.start()
self_member = manager.add_member(self._self_instance)
# 'self_instance' becomes the master.
manager.promote_member(self_member)
runner.promoted.wait(1)
with pytest.raises(TaskError) as e:
runner.join()
assert e.value.message.startswith("Failed to promote the slave")
