def setUp(self):
self.context = Context()
class ContextTests(unittest.TestCase):
def setUp(self):
self.context = Context()
def test_empty(self):
self.assertEqual(0, len(self.context))
def test_insert_root(self):
self.context['a'] = 1
self.assertEqual(1, self.context['a'])
def test_delete_root(self):
self.context['a'] = 1
del self.context['a']
self.assertEqual(0, len(self.context))
def test_insert_nested(self):
nested = self.context.new_child()
nested['a'] = 1
self.assertEqual(1, nested['a'])
self.assertEqual(0, len(self.context.map))
self.assertEqual(1, len(nested.map))
def test_update_nested(self):
nested_1 = self.context.new_child()
nested_2 = self.context.new_child()
# Nested variable is not accessible in parent or sibling
nested_2['c'] = 1
with self.assertRaises(KeyError):
_ = self.context['c']
with self.assertRaises(KeyError):
_ = nested_1['c']
self.assertEqual(1, nested_2['c'])
# Variable is propagated to nested states
self.context['a'] = 1
self.assertEqual(1, self.context['a'])
self.assertEqual(1, nested_1['a'])
self.assertEqual(1, nested_2['a'])
# Siblings have separate context
nested_1['b'] = 2
nested_2['b'] = 3
self.assertEqual(2, nested_1['b'])
self.assertEqual(3, nested_2['b'])
# Nested contexts can affect parent context
nested_1['a'] = 3
self.assertEqual(3, self.context['a'])
self.assertEqual(3, nested_2['a'])
self.assertEqual(3, nested_2['a'])
nested_2['a'] = 4
self.assertEqual(4, self.context['a'])
self.assertEqual(4, nested_1['a'])
self.assertEqual(4, nested_2['a'])
# Parent context is independent from nested ones
self.context['b'] = 4
self.assertEqual(2, nested_1['b'])
self.assertEqual(3, nested_2['b'])
self.assertEqual(4, self.context['b'])
def setUp(self):
self.context = Context()
def test_access_outer_scope(self):
self.evaluator._execute_code('d = [x for x in range(10) if x!=a]',
context=Context({'a': 1}))
class ContextTests(unittest.TestCase):
def setUp(self):
self.context = Context()
def test_empty(self):
self.assertEqual(0, len(self.context))
def test_insert_root(self):
self.context['a'] = 1
self.assertEqual(1, self.context['a'])
def test_delete_root(self):
self.context['a'] = 1
del self.context['a']
self.assertEqual(0, len(self.context))
def test_insert_nested(self):
nested = self.context.new_child()
nested['a'] = 1
self.assertEqual(1, nested['a'])
self.assertEqual(0, len(self.context.map))
self.assertEqual(1, len(nested.map))
def test_update_nested(self):
nested_1 = self.context.new_child()
nested_2 = self.context.new_child()
# Nested variable is not accessible in parent or sibling
nested_2['c'] = 1
with self.assertRaises(KeyError):
_ = self.context['c']
with self.assertRaises(KeyError):
_ = nested_1['c']
self.assertEqual(1, nested_2['c'])
# Variable is propagated to nested states
self.context['a'] = 1
self.assertEqual(1, self.context['a'])
self.assertEqual(1, nested_1['a'])
self.assertEqual(1, nested_2['a'])
# Siblings have separate context
nested_1['b'] = 2
nested_2['b'] = 3
self.assertEqual(2, nested_1['b'])
self.assertEqual(3, nested_2['b'])
# Nested contexts can affect parent context
nested_1['a'] = 3
self.assertEqual(3, self.context['a'])
self.assertEqual(3, nested_2['a'])
self.assertEqual(3, nested_2['a'])
nested_2['a'] = 4
self.assertEqual(4, self.context['a'])
self.assertEqual(4, nested_1['a'])
self.assertEqual(4, nested_2['a'])
# Parent context is independent from nested ones
self.context['b'] = 4
self.assertEqual(2, nested_1['b'])
self.assertEqual(3, nested_2['b'])
self.assertEqual(4, self.context['b'])