# copyright 2003-2015 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

#

# This file is part of CubicWeb.

#

# CubicWeb is free software: you can redistribute it and/or modify it under the

# terms of the GNU Lesser General Public License as published by the Free

# Software Foundation, either version 2.1 of the License, or (at your option)

# any later version.

#

# CubicWeb is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

# details.

#

# You should have received a copy of the GNU Lesser General Public License along

# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

"""unittest for cubicweb.dataimport.csv"""

from io import BytesIO

from logilab.common.testlib import TestCase, unittest_main

from cubicweb.dataimport import csv

class UcsvreaderTC(TestCase):

    def test_empty_lines_skipped(self):

        stream = BytesIO(b'''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(csv.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(csv.ucsvreader(stream, skip_empty=False)))

    def test_skip_first(self):

        stream = BytesIO(b'a,b,c,d,\n1,2,3,4,\n')

        reader = csv.ucsvreader(stream, skipfirst=True, ignore_errors=True)

        self.assertEqual(list(reader),

                         [[u'1', u'2', u'3', u'4', u'']])

        stream.seek(0)

        reader = csv.ucsvreader(stream, skipfirst=True, ignore_errors=False)

        self.assertEqual(list(reader),

                         [[u'1', u'2', u'3', u'4', u'']])

        stream.seek(0)

        reader = csv.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 = csv.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()