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import redis
import unittest
class PipelineTestCase(unittest.TestCase):
def setUp(self):
self.client = redis.Redis(host='localhost', port=6379, db=9)
self.client.flushdb()
def tearDown(self):
self.client.flushdb()
def test_pipeline(self):
pipe = self.client.pipeline()
pipe.set('a', 'a1').get('a').zadd('z', 'z1', 1).zadd('z', 'z2', 4)
pipe.zincrby('z', 'z1').zrange('z', 0, 5, withscores=True)
self.assertEquals(pipe.execute(),
[
True,
'a1',
True,
True,
2.0,
[('z1', 2.0), ('z2', 4)]
]
)
def test_invalid_command_in_pipeline(self):
# all commands but the invalid one should be excuted correctly
self.client['c'] = 'a'
pipe = self.client.pipeline()
pipe.set('a', 1).set('b', 2).lpush('c', 3).set('d', 4)
result = pipe.execute()
self.assertEquals(result[0], True)
self.assertEquals(self.client['a'], '1')
self.assertEquals(result[1], True)
self.assertEquals(self.client['b'], '2')
# we can't lpush to a key that's a string value, so this should
# be a ResponseError exception
self.assert_(isinstance(result[2], redis.ResponseError))
self.assertEquals(self.client['c'], 'a')
self.assertEquals(result[3], True)
self.assertEquals(self.client['d'], '4')
# make sure the pipe was restored to a working state
self.assertEquals(pipe.set('z', 'zzz').execute(), [True])
self.assertEquals(self.client['z'], 'zzz')
def test_pipe_cannot_select(self):
pipe = self.client.pipeline()
self.assertRaises(redis.RedisError,
pipe.select, 'localhost', 6379, db=9)
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