forked from mirror/ledisdb
227 lines
7.1 KiB
Python
227 lines
7.1 KiB
Python
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from __future__ import with_statement
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import pytest
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import redis
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from redis._compat import b, u, unichr, unicode
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class TestPipeline(object):
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def test_pipeline(self, r):
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with r.pipeline() as pipe:
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pipe.set('a', 'a1').get('a').zadd('z', z1=1).zadd('z', z2=4)
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pipe.zincrby('z', 'z1').zrange('z', 0, 5, withscores=True)
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assert pipe.execute() == \
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[
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True,
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b('a1'),
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True,
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True,
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2.0,
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[(b('z1'), 2.0), (b('z2'), 4)],
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]
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def test_pipeline_length(self, r):
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with r.pipeline() as pipe:
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# Initially empty.
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assert len(pipe) == 0
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assert not pipe
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# Fill 'er up!
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pipe.set('a', 'a1').set('b', 'b1').set('c', 'c1')
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assert len(pipe) == 3
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assert pipe
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# Execute calls reset(), so empty once again.
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pipe.execute()
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assert len(pipe) == 0
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assert not pipe
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def test_pipeline_no_transaction(self, r):
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with r.pipeline(transaction=False) as pipe:
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pipe.set('a', 'a1').set('b', 'b1').set('c', 'c1')
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assert pipe.execute() == [True, True, True]
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assert r['a'] == b('a1')
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assert r['b'] == b('b1')
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assert r['c'] == b('c1')
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def test_pipeline_no_transaction_watch(self, r):
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r['a'] = 0
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with r.pipeline(transaction=False) as pipe:
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pipe.watch('a')
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a = pipe.get('a')
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pipe.multi()
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pipe.set('a', int(a) + 1)
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assert pipe.execute() == [True]
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def test_pipeline_no_transaction_watch_failure(self, r):
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r['a'] = 0
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with r.pipeline(transaction=False) as pipe:
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pipe.watch('a')
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a = pipe.get('a')
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r['a'] = 'bad'
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pipe.multi()
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pipe.set('a', int(a) + 1)
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with pytest.raises(redis.WatchError):
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pipe.execute()
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assert r['a'] == b('bad')
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def test_exec_error_in_response(self, r):
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"""
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an invalid pipeline command at exec time adds the exception instance
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to the list of returned values
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"""
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r['c'] = 'a'
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with r.pipeline() as pipe:
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pipe.set('a', 1).set('b', 2).lpush('c', 3).set('d', 4)
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result = pipe.execute(raise_on_error=False)
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assert result[0]
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assert r['a'] == b('1')
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assert result[1]
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assert r['b'] == b('2')
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# we can't lpush to a key that's a string value, so this should
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# be a ResponseError exception
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assert isinstance(result[2], redis.ResponseError)
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assert r['c'] == b('a')
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# since this isn't a transaction, the other commands after the
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# error are still executed
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assert result[3]
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assert r['d'] == b('4')
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# make sure the pipe was restored to a working state
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assert pipe.set('z', 'zzz').execute() == [True]
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assert r['z'] == b('zzz')
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def test_exec_error_raised(self, r):
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r['c'] = 'a'
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with r.pipeline() as pipe:
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pipe.set('a', 1).set('b', 2).lpush('c', 3).set('d', 4)
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with pytest.raises(redis.ResponseError) as ex:
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pipe.execute()
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assert unicode(ex.value).startswith('Command # 3 (LPUSH c 3) of '
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'pipeline caused error: ')
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# make sure the pipe was restored to a working state
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assert pipe.set('z', 'zzz').execute() == [True]
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assert r['z'] == b('zzz')
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def test_parse_error_raised(self, r):
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with r.pipeline() as pipe:
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# the zrem is invalid because we don't pass any keys to it
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pipe.set('a', 1).zrem('b').set('b', 2)
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with pytest.raises(redis.ResponseError) as ex:
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pipe.execute()
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assert unicode(ex.value).startswith('Command # 2 (ZREM b) of '
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'pipeline caused error: ')
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# make sure the pipe was restored to a working state
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assert pipe.set('z', 'zzz').execute() == [True]
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assert r['z'] == b('zzz')
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def test_watch_succeed(self, r):
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r['a'] = 1
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r['b'] = 2
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with r.pipeline() as pipe:
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pipe.watch('a', 'b')
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assert pipe.watching
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a_value = pipe.get('a')
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b_value = pipe.get('b')
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assert a_value == b('1')
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assert b_value == b('2')
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pipe.multi()
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pipe.set('c', 3)
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assert pipe.execute() == [True]
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assert not pipe.watching
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def test_watch_failure(self, r):
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r['a'] = 1
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r['b'] = 2
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with r.pipeline() as pipe:
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pipe.watch('a', 'b')
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r['b'] = 3
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pipe.multi()
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pipe.get('a')
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with pytest.raises(redis.WatchError):
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pipe.execute()
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assert not pipe.watching
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def test_unwatch(self, r):
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r['a'] = 1
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r['b'] = 2
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with r.pipeline() as pipe:
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pipe.watch('a', 'b')
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r['b'] = 3
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pipe.unwatch()
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assert not pipe.watching
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pipe.get('a')
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assert pipe.execute() == [b('1')]
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def test_transaction_callable(self, r):
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r['a'] = 1
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r['b'] = 2
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has_run = []
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def my_transaction(pipe):
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a_value = pipe.get('a')
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assert a_value in (b('1'), b('2'))
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b_value = pipe.get('b')
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assert b_value == b('2')
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# silly run-once code... incr's "a" so WatchError should be raised
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# forcing this all to run again. this should incr "a" once to "2"
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if not has_run:
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r.incr('a')
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has_run.append('it has')
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pipe.multi()
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pipe.set('c', int(a_value) + int(b_value))
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result = r.transaction(my_transaction, 'a', 'b')
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assert result == [True]
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assert r['c'] == b('4')
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def test_exec_error_in_no_transaction_pipeline(self, r):
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r['a'] = 1
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with r.pipeline(transaction=False) as pipe:
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pipe.llen('a')
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pipe.expire('a', 100)
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with pytest.raises(redis.ResponseError) as ex:
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pipe.execute()
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assert unicode(ex.value).startswith('Command # 1 (LLEN a) of '
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'pipeline caused error: ')
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assert r['a'] == b('1')
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def test_exec_error_in_no_transaction_pipeline_unicode_command(self, r):
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key = unichr(3456) + u('abcd') + unichr(3421)
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r[key] = 1
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with r.pipeline(transaction=False) as pipe:
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pipe.llen(key)
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pipe.expire(key, 100)
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with pytest.raises(redis.ResponseError) as ex:
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pipe.execute()
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expected = unicode('Command # 1 (LLEN %s) of pipeline caused '
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'error: ') % key
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assert unicode(ex.value).startswith(expected)
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assert r[key] == b('1')
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