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import uuid
import pytest
from kazoo.testing import KazooTestCase
from kazoo.tests.util import TRAVIS_ZK_VERSION
class KazooQueueTests(KazooTestCase):
def _makeOne(self):
path = "/" + uuid.uuid4().hex
return self.client.Queue(path)
def test_queue_validation(self):
queue = self._makeOne()
with pytest.raises(TypeError):
queue.put({})
with pytest.raises(TypeError):
queue.put(b"one", b"100")
with pytest.raises(TypeError):
queue.put(b"one", 10.0)
with pytest.raises(ValueError):
queue.put(b"one", -100)
with pytest.raises(ValueError):
queue.put(b"one", 100000)
def test_empty_queue(self):
queue = self._makeOne()
assert len(queue) == 0
assert queue.get() is None
assert len(queue) == 0
def test_queue(self):
queue = self._makeOne()
queue.put(b"one")
queue.put(b"two")
queue.put(b"three")
assert len(queue) == 3
assert queue.get() == b"one"
assert queue.get() == b"two"
assert queue.get() == b"three"
assert len(queue) == 0
def test_priority(self):
queue = self._makeOne()
queue.put(b"four", priority=101)
queue.put(b"one", priority=0)
queue.put(b"two", priority=0)
queue.put(b"three", priority=10)
assert queue.get() == b"one"
assert queue.get() == b"two"
assert queue.get() == b"three"
assert queue.get() == b"four"
class KazooLockingQueueTests(KazooTestCase):
def setUp(self):
KazooTestCase.setUp(self)
skip = False
if TRAVIS_ZK_VERSION and TRAVIS_ZK_VERSION < (3, 4):
skip = True
elif TRAVIS_ZK_VERSION and TRAVIS_ZK_VERSION >= (3, 4):
skip = False
else:
ver = self.client.server_version()
if ver[1] < 4:
skip = True
if skip:
pytest.skip("Must use Zookeeper 3.4 or above")
def _makeOne(self):
path = "/" + uuid.uuid4().hex
return self.client.LockingQueue(path)
def test_queue_validation(self):
queue = self._makeOne()
with pytest.raises(TypeError):
queue.put({})
with pytest.raises(TypeError):
queue.put(b"one", b"100")
with pytest.raises(TypeError):
queue.put(b"one", 10.0)
with pytest.raises(ValueError):
queue.put(b"one", -100)
with pytest.raises(ValueError):
queue.put(b"one", 100000)
with pytest.raises(TypeError):
queue.put_all({})
with pytest.raises(TypeError):
queue.put_all([{}])
with pytest.raises(TypeError):
queue.put_all([b"one"], b"100")
with pytest.raises(TypeError):
queue.put_all([b"one"], 10.0)
with pytest.raises(ValueError):
queue.put_all([b"one"], -100)
with pytest.raises(ValueError):
queue.put_all([b"one"], 100000)
def test_empty_queue(self):
queue = self._makeOne()
assert len(queue) == 0
assert queue.get(0) is None
assert len(queue) == 0
def test_queue(self):
queue = self._makeOne()
queue.put(b"one")
queue.put_all([b"two", b"three"])
assert len(queue) == 3
assert not queue.consume()
assert not queue.holds_lock()
assert queue.get(1) == b"one"
assert queue.holds_lock()
# Without consuming, should return the same element
assert queue.get(1) == b"one"
assert queue.consume()
assert not queue.holds_lock()
assert queue.get(1) == b"two"
assert queue.holds_lock()
assert queue.consume()
assert not queue.holds_lock()
assert queue.get(1) == b"three"
assert queue.holds_lock()
assert queue.consume()
assert not queue.holds_lock()
assert not queue.consume()
assert len(queue) == 0
def test_consume(self):
queue = self._makeOne()
queue.put(b"one")
assert not queue.consume()
queue.get(0.1)
assert queue.consume()
assert not queue.consume()
def test_release(self):
queue = self._makeOne()
queue.put(b"one")
assert queue.get(1) == b"one"
assert queue.holds_lock()
assert queue.release()
assert not queue.holds_lock()
assert queue.get(1) == b"one"
assert queue.consume()
assert not queue.release()
assert len(queue) == 0
def test_holds_lock(self):
queue = self._makeOne()
assert not queue.holds_lock()
queue.put(b"one")
queue.get(0.1)
assert queue.holds_lock()
queue.consume()
assert not queue.holds_lock()
def test_priority(self):
queue = self._makeOne()
queue.put(b"four", priority=101)
queue.put(b"one", priority=0)
queue.put(b"two", priority=0)
queue.put(b"three", priority=10)
assert queue.get(1) == b"one"
assert queue.consume()
assert queue.get(1) == b"two"
assert queue.consume()
assert queue.get(1) == b"three"
assert queue.consume()
assert queue.get(1) == b"four"
assert queue.consume()
def test_concurrent_execution(self):
queue = self._makeOne()
value1 = []
value2 = []
value3 = []
event1 = self.client.handler.event_object()
event2 = self.client.handler.event_object()
event3 = self.client.handler.event_object()
def get_concurrently(value, event):
q = self.client.LockingQueue(queue.path)
value.append(q.get(0.1))
event.set()
self.client.handler.spawn(get_concurrently, value1, event1)
self.client.handler.spawn(get_concurrently, value2, event2)
self.client.handler.spawn(get_concurrently, value3, event3)
queue.put(b"one")
event1.wait(0.2)
event2.wait(0.2)
event3.wait(0.2)
result = value1 + value2 + value3
assert result.count(b"one") == 1
assert result.count(None) == 2
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