Data for working on http://stackoverflow.com/questions/19576122/python-differences-when-splitting-with-regex-script-vs-tests?noredirect=1#19576122

gistfile1.py

cternus@astarael ~/foo> cat errorregex.py                                                                                                                                                                 2
import re
class ErrorRegex():
    def __init__(self):
        self.regex = re.compile(r"[^\\]\{}".format("|"))

    def split(self,line):
        line = line.replace("\n","")
        print line
        splitted = self.regex.split(line)
        print splitted
        return splitted

if __name__ == "__main__":
    text = r"aa|bb|d\|d"
    er = ErrorRegex()
    er.split(text)
cternus@astarael ~/foo> cat foo_test.py
import unittest
import errorregex

class TestErrorRegex(unittest.TestCase):
    def test_default_arguments(self):
        expected = ["aa","bb","d\|d"]

        input_ = r"aa|bb|d\|d"
        er = errorregex.ErrorRegex()
        actual = er.split(input_)
        self.assertEqual(expected, actual)

if __name__ == '__main__':
    unittest.main()
cternus@astarael ~/foo> python --version
Python 2.7.5
cternus@astarael ~/foo> python foo_test.py
aa|bb|d\|d
['a', 'b', 'd\\|d']
F
======================================================================
FAIL: test_default_arguments (__main__.TestErrorRegex)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "foo_test.py", line 11, in test_default_arguments
    self.assertEqual(expected, actual)
AssertionError: Lists differ: ['aa', 'bb', 'd\\|d'] != ['a', 'b', 'd\\|d']

First differing element 0:
aa
a

- ['aa', 'bb', 'd\\|d']
?    -    -

+ ['a', 'b', 'd\\|d']

----------------------------------------------------------------------
Ran 1 test in 0.001s

FAILED (failures=1)