def test_sequence_error1(self):
try:
sequence()
self.fail("Expected ValueError")
except ValueError:
pass
try:
sequence(1,2,3,4)
self.fail("Expected ValueError")
except ValueError:
pass
def test_sequence(self):
self.assertEqual(list(sequence(10)), list(range(1,11)))
self.assertEqual(list(sequence(8,10)), [8,9,10])
self.assertEqual(list(sequence(1,10,3)), [1,4,7,10])