def test_parse_range(self):
self.assertEqual(util.parse_range(""), [])
self.assertEqual(util.parse_range("1-2"), [(1, 2)])
self.assertEqual(util.parse_range("-"), [(1, sys.maxsize)])
self.assertEqual(util.parse_range("-2,4,6-8,10-"), [(1, 2), (4, 4),
(6, 8),
(10, sys.maxsize)])
self.assertEqual(util.parse_range(" - 3 , 4- 4, 2-6"),
[(1, 3), (4, 4), (2, 6)])
def test_range_predicate(self):
dummy = None
pred = util.RangePredicate(util.parse_range(" - 3 , 4- 4, 2-6"))
for i in range(6):
self.assertTrue(pred(dummy, dummy))
with self.assertRaises(exception.StopExtraction):
bool(pred(dummy, dummy))
pred = util.RangePredicate(util.parse_range("1, 3, 5"))
self.assertTrue(pred(dummy, dummy))
self.assertFalse(pred(dummy, dummy))
self.assertTrue(pred(dummy, dummy))
self.assertFalse(pred(dummy, dummy))
self.assertTrue(pred(dummy, dummy))
with self.assertRaises(exception.StopExtraction):
bool(pred(dummy, dummy))
pred = util.RangePredicate(util.parse_range(""))
with self.assertRaises(exception.StopExtraction):
bool(pred(dummy, dummy))
