def get_boolean_from_element(element: XmlElement, name: str) -> Optional[bool]:
text = get_text_from_element(element, name)
if text is None:
return None
return parse_bool(text.strip())
def test_str(self):
self.assertTrue(parse_bool('1'))
self.assertFalse(parse_bool('0'))
self.assertFalse(parse_bool(''))
self.assertFalse(parse_bool('foo'))
def test_int(self):
self.assertTrue(parse_bool(1))
self.assertFalse(parse_bool(0))
self.assertFalse(parse_bool(12))
self.assertFalse(parse_bool(-1))
def test_none(self):
self.assertIsNone(parse_bool(None))
