def check_service_constructor(self):
"""Check that BackgroundThreadService constructor corresponds to the base class's one."""
exp_spec = ClusterSpec.simple_linux(10)
service = BackgroundThreadService(self.context, cluster_spec=exp_spec)
assert service.cluster_spec == exp_spec
service = BackgroundThreadService(self.context, num_nodes=20)
assert service.cluster_spec.size() == 20
with pytest.raises(RuntimeError):
BackgroundThreadService(self.context,
num_nodes=20,
cluster_spec=exp_spec)
