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# (c) 2015 Toshio Kuratomi <tkuratomi@ansible.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import jinja2
from ansible.compat.tests import unittest
from ansible.template import _preserve_backslashes
class TestBackslashEscape(unittest.TestCase):
test_data = (
# Test backslashes in a filter arg are double escaped
dict(
template="{{ 'test2 %s' | format('\\1') }}",
intermediate="{{ 'test2 %s' | format('\\\\1') }}",
expectation="test2 \\1",
args=dict()
),
# Test backslashes inside the jinja2 var itself are double
# escaped
dict(
template="Test 2\\3: {{ '\\1 %s' | format('\\2') }}",
intermediate="Test 2\\3: {{ '\\\\1 %s' | format('\\\\2') }}",
expectation="Test 2\\3: \\1 \\2",
args=dict()
),
# Test backslashes outside of the jinja2 var are not double
# escaped
dict(
template="Test 2\\3: {{ 'test2 %s' | format('\\1') }}; \\done",
intermediate="Test 2\\3: {{ 'test2 %s' | format('\\\\1') }}; \\done",
expectation="Test 2\\3: test2 \\1; \\done",
args=dict()
),
# Test backslashes in a variable sent to a filter are handled
dict(
template="{{ 'test2 %s' | format(var1) }}",
#intermediate="{{ 'test2 %s' | format('\\\\1') }}",
intermediate="{{ 'test2 %s' | format(var1) }}",
expectation="test2 \\1",
args=dict(var1='\\1')
),
# Test backslashes in a variable expanded by jinja2 are double
# escaped
dict(
template="Test 2\\3: {{ var1 | format('\\2') }}",
intermediate="Test 2\\3: {{ var1 | format('\\\\2') }}",
expectation="Test 2\\3: \\1 \\2",
args=dict(var1='\\1 %s')
),
)
def setUp(self):
self.env = jinja2.Environment()
def tearDown(self):
pass
def test_backslash_escaping(self):
for test in self.test_data:
intermediate = _preserve_backslashes(test['template'], self.env)
self.assertEquals(intermediate, test['intermediate'])
template = jinja2.Template(intermediate)
args = test['args']
self.assertEquals(template.render(**args), test['expectation'])
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