def test_happy_path(self):
try:
parsers.KeyExtensionInterface("0")
parsers.KeyExtensionInterface("113")
parsers.KeyExtensionInterface("2w")
parsers.KeyExtensionInterface("3m")
parsers.KeyExtensionInterface("54y")
except UsageError:
self.fail(
'more than one digit, key extension option, raises exceptions')
def test_more_than_y_is_not_allowed_option(self):
with self.assertRaises(UsageError):
parsers.KeyExtensionInterface("9yy")
def test_letters_before_a_number_is_not_allowed(self):
with self.assertRaises(UsageError):
parsers.KeyExtensionInterface("w3")
def test_negative_number_is_not_allowed(self):
with self.assertRaises(UsageError):
parsers.KeyExtensionInterface("-1")
def test_anything_that_is_not_w_y_m_is_not_allowed(self):
with self.assertRaises(UsageError):
parsers.KeyExtensionInterface("2x")
