def test_non_replacement_does_not_activate_replacer(self):
node = ast.parse('x = 1')
replacer = NumberReplacer(1)
replacer.visit(node)
self.assertFalse(replacer.activation_record)
def test_replacement_activated_replacer(self):
node = ast.parse('x = 1')
replacer = NumberReplacer(0)
replacer.visit(node)
self.assertTrue(replacer.activation_record)