def test_number_invalid_type(self):
""" Test that invalid type raises exception """
with self.assertRaises(Exception):
CourseVal.number(1234)
def test_number_length(self):
""" Test that zero-length raises exception """
with self.assertRaises(Exception):
CourseVal.number("")
with self.assertRaises(Exception):
CourseVal.number("12345")
def test_number(self):
""" Test that valid args does not raise exception """
try:
CourseVal.number("1234")
except Exception:
self.fail()