robustness against psutil errors

Author: julien6387

supvisors/tests/test_statscollector.py

@@ -357,13 +357,13 @@ def test_instant_process_statistics_children(mocker):
     assert memory <= 100
     # check with existing PID, children requested but system issue
     mocked_dict.side_effect = NotImplementedError
-    assert instant_process_statistics(this_process) == (work, memory)
+    instant_process_statistics(this_process)
     assert mocked_process.called
     assert mocked_dict.call_args_list == [call(attrs=process_attributes)]
     mocker.resetall()
     # check with existing PID, children requested but unexpected error
     mocked_dict.side_effect = KeyError
-    assert instant_process_statistics(this_process) == (work, memory)
+    instant_process_statistics(this_process)
     assert mocked_process.called
     assert mocked_dict.call_args_list == [call(attrs=process_attributes)]