[devtools] Avoid db_cache collisions and mis-loading
This is done by stopping to share the db_cache between
TestDataBaseHandler instances
It may seem overkill, but is the only way I could get it to work
properly. I think the whole db caching code needs some rework to better
work with different db handlers.
Closes #4601328
from StringIO import StringIO
from logilab.common.testlib import TestCase, unittest_main
from cubicweb import dataimport
class UcsvreaderTC(TestCase):
def test_empty_lines_skipped(self):
stream = StringIO('''a,b,c,d,
1,2,3,4,
,,,,
,,,,
''')
self.assertEqual([[u'a', u'b', u'c', u'd', u''],
[u'1', u'2', u'3', u'4', u''],
],
list(dataimport.ucsvreader(stream)))
stream.seek(0)
self.assertEqual([[u'a', u'b', u'c', u'd', u''],
[u'1', u'2', u'3', u'4', u''],
[u'', u'', u'', u'', u''],
[u'', u'', u'', u'', u'']
],
list(dataimport.ucsvreader(stream, skip_empty=False)))
def test_skip_first(self):
stream = StringIO('a,b,c,d,\n'
'1,2,3,4,\n')
reader = dataimport.ucsvreader(stream, skipfirst=True,
ignore_errors=True)
self.assertEqual(list(reader),
[[u'1', u'2', u'3', u'4', u'']])
stream.seek(0)
reader = dataimport.ucsvreader(stream, skipfirst=True,
ignore_errors=False)
self.assertEqual(list(reader),
[[u'1', u'2', u'3', u'4', u'']])
stream.seek(0)
reader = dataimport.ucsvreader(stream, skipfirst=False,
ignore_errors=True)
self.assertEqual(list(reader),
[[u'a', u'b', u'c', u'd', u''],
[u'1', u'2', u'3', u'4', u'']])
stream.seek(0)
reader = dataimport.ucsvreader(stream, skipfirst=False,
ignore_errors=False)
self.assertEqual(list(reader),
[[u'a', u'b', u'c', u'd', u''],
[u'1', u'2', u'3', u'4', u'']])
if __name__ == '__main__':
unittest_main()