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# coding: utf-8
from django.template import Context, Variable, VariableDoesNotExist
from django.utils.unittest import TestCase
class ContextTests(TestCase):
def test_context(self):
c = Context({"a": 1, "b": "xyzzy"})
self.assertEqual(c["a"], 1)
self.assertEqual(c.push(), {})
c["a"] = 2
self.assertEqual(c["a"], 2)
self.assertEqual(c.get("a"), 2)
self.assertEqual(c.pop(), {"a": 2})
self.assertEqual(c["a"], 1)
self.assertEqual(c.get("foo", 42), 42)
def test_resolve_on_context_method(self):
# Regression test for #17778
empty_context = Context()
self.assertRaises(VariableDoesNotExist,
Variable('no_such_variable').resolve, empty_context)
self.assertRaises(VariableDoesNotExist,
Variable('new').resolve, empty_context)
self.assertEqual(Variable('new').resolve(Context({'new': 'foo'})), 'foo')
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