Bad use of tuple for keyword xattr_names of LocalClient.update_content()

01:48:12.167 [INFO]      [exec] FAIL nuxeo-drive-client/tests/test_watchers.py::TestWatchers::test_local_scan_encoding
01:48:12.167 [INFO]      [exec] =================================== FAILURES ===================================
01:48:12.167 [INFO]      [exec] ____________________ TestWatchers.test_local_scan_encoding _____________________
01:48:12.167 [INFO]      [exec] self = <tests.test_watchers.TestWatchers testMethod=test_local_scan_encoding>
01:48:12.167 [INFO]      [exec]     def test_local_scan_encoding(self):
01:48:12.167 [INFO]      [exec]         local = self.local_client_1
01:48:12.167 [INFO]      [exec]         remote = self.remote_document_client_1
01:48:12.167 [INFO]      [exec]         # Synchronize test workspace
01:48:12.167 [INFO]      [exec]         self.engine_1.start()
01:48:12.167 [INFO]      [exec]         self.wait_sync()
01:48:12.167 [INFO]      [exec]         self.engine_1.stop()
01:48:12.167 [INFO]      [exec]         # Create files with Unicode combining accents, Unicode latin characters and no special characters
01:48:12.167 [INFO]      [exec]         local.make_file(u'/', u'Accentue\u0301.odt', u'Content')
01:48:12.167 [INFO]      [exec]         local.make_folder(u'/', u'P\xf4le applicatif')
01:48:12.167 [INFO]      [exec]         local.make_file(u'/P\xf4le applicatif', u'e\u0302tre ou ne pas \xeatre.odt', u'Content')
01:48:12.167 [INFO]      [exec]         local.make_file(u'/', u'No special character.odt', u'Content')
01:48:12.167 [INFO]      [exec]         # Launch local scan and check upstream synchronization
01:48:12.167 [INFO]      [exec]         self.engine_1.start()
01:48:12.167 [INFO]      [exec]         self.wait_sync()
01:48:12.167 [INFO]      [exec]         self.engine_1.stop()
01:48:12.167 [INFO]      [exec]         self.assertTrue(remote.exists(u'/Accentue\u0301.odt'))
01:48:12.167 [INFO]      [exec]         self.assertTrue(remote.exists(u'/P\xf4le applicatif'))
01:48:12.167 [INFO]      [exec]         self.assertTrue(remote.exists(u'/P\xf4le applicatif/e\u0302tre ou ne pas \xeatre.odt'))
01:48:12.167 [INFO]      [exec]         self.assertTrue(remote.exists(u'/No special character.odt'))
01:48:12.167 [INFO]      [exec]         # Check rename using normalized names as previous local scan has normalized them on the file system
01:48:12.167 [INFO]      [exec]         local.rename(u'/Accentu\xe9.odt', u'Accentue\u0301 avec un e\u0302 et un \xe9.odt')
01:48:12.167 [INFO]      [exec]         local.rename(u'/P\xf4le applicatif', u'P\xf4le applique\u0301')
01:48:12.167 [INFO]      [exec]         # LocalClient.rename calls LocalClient.get_info then the FileInfo constructor which normalizes names
01:48:12.167 [INFO]      [exec]         # on the file system, thus we need to use the normalized name for the parent folder
01:48:12.167 [INFO]      [exec]         local.rename(u'/P\xf4le appliqu\xe9/\xeatre ou ne pas \xeatre.odt', u'avoir et e\u0302tre.odt')
01:48:12.167 [INFO]      [exec]         self.engine_1.start()
01:48:12.167 [INFO]      [exec]         self.wait_sync(wait_for_async=True)
01:48:12.167 [INFO]      [exec]         self.engine_1.stop()
01:48:12.167 [INFO]      [exec]         self.assertEqual(remote.get_info(u'/Accentue\u0301.odt').name, u'Accentu\xe9 avec un \xea et un \xe9.odt')
01:48:12.167 [INFO]      [exec]         self.assertEqual(remote.get_info(u'/P\xf4le applicatif').name, u'P\xf4le appliqu\xe9')
01:48:12.167 [INFO]      [exec]         self.assertEqual(remote.get_info(u'/P\xf4le applicatif/e\u0302tre ou ne pas \xeatre.odt').name,
01:48:12.167 [INFO]      [exec]                          u'avoir et \xeatre.odt')
01:48:12.167 [INFO]      [exec]         # Check content update
01:48:12.167 [INFO]      [exec]         # NXDRIVE-389: Reload the engine to be sure that the pair are all synchronized
01:48:12.167 [INFO]      [exec]         log.debug("Update content of avoir et etre")
01:48:12.167 [INFO]      [exec]         local.update_content(u'/Accentu\xe9 avec un \xea et un \xe9.odt', u'Updated content')
01:48:12.167 [INFO]      [exec] >       local.update_content(u'/P\xf4le appliqu\xe9/avoir et \xeatre.odt', u'Updated content')
01:48:12.167 [INFO]      [exec] local      = <LocalClient base_folder=u'/opt/jenkins/workspace/Drive_FT-drive_master-CUACR5....dwl2', '.part', '.lock', '.crdownload', '.tmp', '.LOCK', '.bak', '.dwl', '~')>
01:48:12.167 [INFO]      [exec] remote     = <RemoteDocumentClientForTests base_folder=None, blob_timeout=60, check_suspend...UL3SF5V2PSVOUZC4CRBQLRIA/tmp/tmpBL2OTE-nxdrive-uploads', user_id='driveuser_1'>
01:48:12.167 [INFO]      [exec] self       = <tests.test_watchers.TestWatchers testMethod=test_local_scan_encoding>
01:48:12.167 [INFO]      [exec] nuxeo-drive-client/tests/test_watchers.py:217: 
01:48:12.167 [INFO]      [exec] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
01:48:12.167 [INFO]      [exec] self = <LocalClient base_folder=u'/opt/jenkins/workspace/Drive_FT-drive_master-CUACR5....dwl2', '.part', '.lock', '.crdownload', '.tmp', '.LOCK', '.bak', '.dwl', '~')>
01:48:12.167 [INFO]      [exec] ref = '/Pôle appliqué/avoir et être.odt', content = 'Updated content'
01:48:12.167 [INFO]      [exec] xattr_names = ('n', 'd', 'r', 'i', 'v', 'e')
01:48:12.167 [INFO]      [exec]     def update_content(self, ref, content, xattr_names=tuple('ndrive')):
01:48:12.167 [INFO]      [exec]         xattrs = {}
01:48:12.167 [INFO]      [exec]         for name in xattr_names:
01:48:12.167 [INFO]      [exec]             xattrs[name] = self.get_remote_id(ref, name=name)
01:48:12.167 [INFO]      [exec] >       with open(self.abspath(ref), "wb") as f:
01:48:12.167 [INFO]      [exec] E       IOError: [Errno 2] No such file or directory: u'/opt/jenkins/workspace/Drive_FT-drive_master-CUACR5UOIAO62W7K2CAAQ7UISS5UUL3SF5V2PSVOUZC4CRBQLRIA/tmp/tmpGp9Ecpdrive-1/Nuxeo Drive/Nuxeo Drive Test Workspace/P\xf4le appliqu\xe9/avoir et \xeatre.odt'
01:48:12.167 [INFO]      [exec] content    = 'Updated content'
01:48:12.167 [INFO]      [exec] name       = 'e'
01:48:12.167 [INFO]      [exec] ref        = '/P\xf4le appliqu\xe9/avoir et \xeatre.odt'
01:48:12.167 [INFO]      [exec] self       = <LocalClient base_folder=u'/opt/jenkins/workspace/Drive_FT-drive_master-CUACR5....dwl2', '.part', '.lock', '.crdownload', '.tmp', '.LOCK', '.bak', '.dwl', '~')>
01:48:12.167 [INFO]      [exec] xattr_names = ('n', 'd', 'r', 'i', 'v', 'e')
01:48:12.167 [INFO]      [exec] xattrs     = {'d': None, 'e': None, 'i': None, 'n': None, ...}
01:48:12.167 [INFO]      [exec] nuxeo-drive-client/nxdrive/client/local_client.py:651: IOError