Test validity of the xml files of the module
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Traceback (most recent call last):
  File "/home/mrichez/Workspace/tryton/tryton_dev/trytond/trytond/tests/test_tryton.py", line 203, in wrapper
    result = func(*args, **kwargs)
  File "/home/mrichez/Workspace/tryton/tryton_dev/trytond/trytond/tests/test_tryton.py", line 659, in test_xml_files
    validator.assertValid(tree)
  File "src/lxml/etree.pyx", line 3569, in lxml.etree._Validator.assertValid
lxml.etree.DocumentInvalid: Invalid attribute skiptest for element data, line 5

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Ran 18 tests in 250.302s

FAILED (errors=1)