def setUp(self):
        self.builder = builder.TestXMLBuilder()
        self.doc = self.builder._xml_doc
        self.builder.begin_context('testsuites', 'name')

        self.valid_chars = six.u('выбор')

        self.invalid_chars = '\x01'
        self.invalid_chars_replace = six.u('\ufffd')
    def test_end_inexistent_context(self):
        self.builder = builder.TestXMLBuilder()

        self.assertFalse(self.builder.end_context())
        self.assertEqual(len(self.doc.childNodes), 0)