def test_basic_usage(self):
d = RedisDeque('ghi', redis=self.redis)
assert d == ['g', 'h', 'i']
d.append('j')
d.appendleft('f')
assert d == ['f', 'g', 'h', 'i', 'j']
assert d.pop() == 'j'
assert d.popleft() == 'f'
assert d == ['g', 'h', 'i']
assert d[0] == 'g'
assert d[-1] == 'i'
assert list(reversed(d)) == ['i', 'h', 'g']
assert 'h' in d
d.extend('jkl')
assert d == ['g', 'h', 'i', 'j', 'k', 'l']
d.rotate(1)
assert d == ['l', 'g', 'h', 'i', 'j', 'k']
d.rotate(-1)
assert d == ['g', 'h', 'i', 'j', 'k', 'l']
assert RedisDeque(reversed(d),
redis=self.redis) == ['l', 'k', 'j', 'i', 'h', 'g']
d.clear()
with self.assertRaises(IndexError):
d.pop()
d.extendleft('abc')
assert d == ['c', 'b', 'a']
def test_popleft_from_empty(self):
d = RedisDeque(redis=self.redis)
with self.assertRaises(IndexError):
d.popleft()