1 files changed, 84 insertions, 0 deletions
diff --git a/parts/django/tests/regressiontests/templates/parser.py b/parts/django/tests/regressiontests/templates/parser.py
new file mode 100644
index 0000000..93e8118
--- /dev/null
+++ b/parts/django/tests/regressiontests/templates/parser.py
@@ -0,0 +1,84 @@
+"""
+Testing some internals of the template processing. These are *not* examples to be copied in user code.
+"""
+from unittest import TestCase
+
+from django.template import (TokenParser, FilterExpression, Parser, Variable,
+    TemplateSyntaxError)
+
+
+class ParserTests(TestCase):
+    def test_token_parsing(self):
+        # Tests for TokenParser behavior in the face of quoted strings with
+        # spaces.
+
+        p = TokenParser("tag thevar|filter sometag")
+        self.assertEqual(p.tagname, "tag")
+        self.assertEqual(p.value(), "thevar|filter")
+        self.assertTrue(p.more())
+        self.assertEqual(p.tag(), "sometag")
+        self.assertFalse(p.more())
+
+        p = TokenParser('tag "a value"|filter sometag')
+        self.assertEqual(p.tagname, "tag")
+        self.assertEqual(p.value(), '"a value"|filter')
+        self.assertTrue(p.more())
+        self.assertEqual(p.tag(), "sometag")
+        self.assertFalse(p.more())
+
+        p = TokenParser("tag 'a value'|filter sometag")
+        self.assertEqual(p.tagname, "tag")
+        self.assertEqual(p.value(), "'a value'|filter")
+        self.assertTrue(p.more())
+        self.assertEqual(p.tag(), "sometag")
+        self.assertFalse(p.more())
+
+    def test_filter_parsing(self):
+        c = {"article": {"section": u"News"}}
+        p = Parser("")
+
+        def fe_test(s, val):
+            self.assertEqual(FilterExpression(s, p).resolve(c), val)
+
+        fe_test("article.section", u"News")
+        fe_test("article.section|upper", u"NEWS")
+        fe_test(u'"News"', u"News")
+        fe_test(u"'News'", u"News")
+        fe_test(ur'"Some \"Good\" News"', u'Some "Good" News')
+        fe_test(ur'"Some \"Good\" News"', u'Some "Good" News')
+        fe_test(ur"'Some \'Bad\' News'", u"Some 'Bad' News")
+
+        fe = FilterExpression(ur'"Some \"Good\" News"', p)
+        self.assertEqual(fe.filters, [])
+        self.assertEqual(fe.var, u'Some "Good" News')
+
+        # Filtered variables should reject access of attributes beginning with
+        # underscores.
+        self.assertRaises(TemplateSyntaxError,
+            FilterExpression, "article._hidden|upper", p
+        )
+
+    def test_variable_parsing(self):
+        c = {"article": {"section": u"News"}}
+        self.assertEqual(Variable("article.section").resolve(c), "News")
+        self.assertEqual(Variable(u'"News"').resolve(c), "News")
+        self.assertEqual(Variable(u"'News'").resolve(c), "News")
+
+        # Translated strings are handled correctly.
+        self.assertEqual(Variable("_(article.section)").resolve(c), "News")
+        self.assertEqual(Variable('_("Good News")').resolve(c), "Good News")
+        self.assertEqual(Variable("_('Better News')").resolve(c), "Better News")
+
+        # Escaped quotes work correctly as well.
+        self.assertEqual(
+            Variable(ur'"Some \"Good\" News"').resolve(c), 'Some "Good" News'
+        )
+        self.assertEqual(
+            Variable(ur"'Some \'Better\' News'").resolve(c), "Some 'Better' News"
+        )
+
+        # Variables should reject access of attributes beginning with
+        # underscores.
+        self.assertRaises(TemplateSyntaxError,
+            Variable, "article._hidden"
+        )