def test_no_args(self):
prefix = get_next_prefix.getNextPrefix()
self.assertEquals('a', prefix)
def test_much_farther_letter(self):
# y gets turned to z
prefix = get_next_prefix.getNextPrefix('faraway')
self.assertEquals('farawaz', prefix)
def test_y_to_z(self):
prefix = get_next_prefix.getNextPrefix('y')
self.assertEquals('z', prefix)
def test_last_letter(self):
prefix = get_next_prefix.getNextPrefix('z')
self.assertEquals('aa', prefix)
def test_a_to_b(self):
prefix = get_next_prefix.getNextPrefix('a')
self.assertEquals('b', prefix)