path: waagent_2.12.0.2-4/tests/common/osutil/test_default.py
        def mock_run_command(cmd):  # pylint: disable=unused-argument
            return original_run_command(["pidof", "non-existing-process"])
        with patch("azurelinuxagent.common.utils.shellutil.run_command", side_effect=mock_run_command):