1 files changed, 117 insertions, 0 deletions
diff --git a/test/units/template/test_template_utilities.py b/test/units/template/test_template_utilities.py
new file mode 100644
index 0000000..1044895
--- /dev/null
+++ b/test/units/template/test_template_utilities.py
@@ -0,0 +1,117 @@
+# (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 units.compat import unittest
+
+from ansible.template import AnsibleUndefined, _escape_backslashes, _count_newlines_from_end
+
+# These are internal utility functions only needed for templating.  They're
+# algorithmic so good candidates for unittesting by themselves
+
+
+class TestBackslashEscape(unittest.TestCase):
+
+    test_data = (
+        # Test backslashes in a filter arg are double escaped
+        dict(
+            template=u"{{ 'test2 %s' | format('\\1') }}",
+            intermediate=u"{{ 'test2 %s' | format('\\\\1') }}",
+            expectation=u"test2 \\1",
+            args=dict()
+        ),
+        # Test backslashes inside the jinja2 var itself are double
+        # escaped
+        dict(
+            template=u"Test 2\\3: {{ '\\1 %s' | format('\\2') }}",
+            intermediate=u"Test 2\\3: {{ '\\\\1 %s' | format('\\\\2') }}",
+            expectation=u"Test 2\\3: \\1 \\2",
+            args=dict()
+        ),
+        # Test backslashes outside of the jinja2 var are not double
+        # escaped
+        dict(
+            template=u"Test 2\\3: {{ 'test2 %s' | format('\\1') }}; \\done",
+            intermediate=u"Test 2\\3: {{ 'test2 %s' | format('\\\\1') }}; \\done",
+            expectation=u"Test 2\\3: test2 \\1; \\done",
+            args=dict()
+        ),
+        # Test backslashes in a variable sent to a filter are handled
+        dict(
+            template=u"{{ 'test2 %s' | format(var1) }}",
+            intermediate=u"{{ 'test2 %s' | format(var1) }}",
+            expectation=u"test2 \\1",
+            args=dict(var1=u'\\1')
+        ),
+        # Test backslashes in a variable expanded by jinja2 are double
+        # escaped
+        dict(
+            template=u"Test 2\\3: {{ var1 | format('\\2') }}",
+            intermediate=u"Test 2\\3: {{ var1 | format('\\\\2') }}",
+            expectation=u"Test 2\\3: \\1 \\2",
+            args=dict(var1=u'\\1 %s')
+        ),
+    )
+
+    def setUp(self):
+        self.env = jinja2.Environment()
+
+    def test_backslash_escaping(self):
+
+        for test in self.test_data:
+            intermediate = _escape_backslashes(test['template'], self.env)
+            self.assertEqual(intermediate, test['intermediate'])
+            template = jinja2.Template(intermediate)
+            args = test['args']
+            self.assertEqual(template.render(**args), test['expectation'])
+
+
+class TestCountNewlines(unittest.TestCase):
+
+    def test_zero_length_string(self):
+        self.assertEqual(_count_newlines_from_end(u''), 0)
+
+    def test_short_string(self):
+        self.assertEqual(_count_newlines_from_end(u'The quick\n'), 1)
+
+    def test_one_newline(self):
+        self.assertEqual(_count_newlines_from_end(u'The quick brown fox jumped over the lazy dog' * 1000 + u'\n'), 1)
+
+    def test_multiple_newlines(self):
+        self.assertEqual(_count_newlines_from_end(u'The quick brown fox jumped over the lazy dog' * 1000 + u'\n\n\n'), 3)
+
+    def test_zero_newlines(self):
+        self.assertEqual(_count_newlines_from_end(u'The quick brown fox jumped over the lazy dog' * 1000), 0)
+
+    def test_all_newlines(self):
+        self.assertEqual(_count_newlines_from_end(u'\n' * 10), 10)
+
+    def test_mostly_newlines(self):
+        self.assertEqual(_count_newlines_from_end(u'The quick brown fox jumped over the lazy dog' + u'\n' * 1000), 1000)
+
+
+class TestAnsibleUndefined(unittest.TestCase):
+    def test_getattr(self):
+        val = AnsibleUndefined()
+
+        self.assertIs(getattr(val, 'foo'), val)
+
+        self.assertRaises(AttributeError, getattr, val, '__UNSAFE__')