qubes-installer-qubes-os/anaconda/tests/lib/regexcheck.py
Marek Marczykowski-Górecki 701ced5ddb anaconda: update to 22.20.13-1
Apply diff anaconda-21.48.21-1..anaconda-22.20.13-1
2016-03-22 02:27:17 +13:00

72 lines
2.6 KiB
Python

#
# regexcheck.py: check a regular expression against lists of matching and non-matching strings
#
# Copyright (C) 2015 Red Hat, Inc.
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# Author: David Shea <dshea@redhat.com>
def regex_match(expression, goodlist, badlist):
""" Check that a regular expression matches and does not match lists of strings.
This method will print a message for any failure and return a a bool
to indicate whether the testcase passed.
:param expression: a compiled regular expression object
:param goodlist: a list of strings expected to be matched by expression
:param badlist: a list of strings expected not to be matched by expression
:returns: True if all strings in the lists matched or did not match as expected
:rtype: bool
"""
success = True
for good in goodlist:
if expression.match(good) is None:
success = False
print("Good string %s did not match expression" % good)
for bad in badlist:
if expression.match(bad) is not None:
success = False
print("Bad string %s matched expression" % bad)
return success
def regex_group(expression, test_cases):
""" Check that a regex parses strings into expected groups.
Test cases is a list of tuples of the form (test_string, expected_result)
where expected_result is the groups tuples that should be returned by
regex.match.
:param expression: a compiled expression object
:param test_cases: a list of test strings and expected results
:returns: True if all test cases return the expected groups
:rtype: bool
"""
success = True
for test_str, result in test_cases:
match = expression.match(test_str)
if match is not None:
match = match.groups()
if match != result:
print("Test case `%s' did not parse as `%s': %s" % (test_str, result, match))
success = False
return success