test failure : test_nxw_loopscan_alt
nexus_writer_config_alt = (<bliss.common.session.Session object at 0x7ff499865d90>,
local('/tmp/pytest-of-root/pytest-0/test_nxw_loopscan_alt0'),
<FileObjectPosix _fobj=<_io.BufferedReader>>)
def test_nxw_loopscan_alt(nexus_writer_config_alt):
> _test_nxw_loopscan(*nexus_writer_config_alt, config=True, withpolicy=True, alt=True)
tests/nexus_writer/test_nxw_loopscan.py:18:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
tests/nexus_writer/test_nxw_loopscan.py:57: in _test_nxw_loopscan
writer_stdout=writer_stdout,
tests/nexus_writer/helpers/nxw_test_data.py:28: in assert_scan_data
validate_scan_data(scan, **kwargs)