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# coding=utf-8
import random
import shutil
import sys
import tempfile
import unittest
from threading import Thread
from persistqueue import Empty
from persistqueue import SQLiteQueue, FILOSQLiteQueue, UniqueQ
from persistqueue.serializers import json as serializers_json
from persistqueue.serializers import pickle as serializers_pickle
from persistqueue.serializers import msgpack as serializers_msgpack
from persistqueue.serializers import cbor2 as serializers_cbor2
class SQLite3QueueTest(unittest.TestCase):
def setUp(self):
self.path = tempfile.mkdtemp(suffix='sqlqueue')
self.auto_commit = True
self.queue_class = SQLiteQueue
def tearDown(self):
shutil.rmtree(self.path, ignore_errors=True)
def test_raise_empty(self):
q = self.queue_class(self.path, auto_commit=self.auto_commit)
q.put('first')
d = q.get()
self.assertEqual('first', d)
self.assertRaises(Empty, q.get, block=False)
self.assertRaises(Empty, q.get_nowait)
# assert with timeout
self.assertRaises(Empty, q.get, block=True, timeout=1.0)
# assert with negative timeout
self.assertRaises(ValueError, q.get, block=True, timeout=-1.0)
del q
def test_empty(self):
q = self.queue_class(self.path, auto_commit=self.auto_commit)
self.assertEqual(q.empty(), True)
q.put('first')
self.assertEqual(q.empty(), False)
q.get()
self.assertEqual(q.empty(), True)
def test_full(self):
# SQL queue `full()` always returns `False` !!
q = self.queue_class(self.path, auto_commit=self.auto_commit)
self.assertEqual(q.full(), False)
q.put('first')
self.assertEqual(q.full(), False)
q.get()
self.assertEqual(q.full(), False)
def test_open_close_single(self):
"""Write 1 item, close, reopen checking if same item is there"""
q = self.queue_class(self.path, auto_commit=self.auto_commit)
q.put(b'var1')
del q
q = SQLiteQueue(self.path)
self.assertEqual(1, q.qsize())
self.assertEqual(b'var1', q.get())
def test_open_close_1000(self):
"""Write 1000 items, close, reopen checking if all items are there"""
q = self.queue_class(self.path, auto_commit=self.auto_commit)
for i in range(1000):
q.put('var%d' % i)
self.assertEqual(1000, q.qsize())
del q
q = SQLiteQueue(self.path)
self.assertEqual(1000, q.qsize())
for i in range(1000):
data = q.get()
self.assertEqual('var%d' % i, data)
# assert adding another one still works
q.put('foobar')
data = q.get()
q.shrink_disk_usage()
self.assertEqual('foobar', data)
def test_random_read_write(self):
"""Test random read/write"""
q = self.queue_class(self.path, auto_commit=self.auto_commit)
n = 0
for _ in range(1000):
if random.random() < 0.5:
if n > 0:
q.get()
n -= 1
else:
self.assertRaises(Empty, q.get, block=False)
else:
q.put('var%d' % random.getrandbits(16))
n += 1
def test_multi_threaded_parallel(self):
"""Create consumer and producer threads, check parallelism"""
# self.skipTest("Not supported multi-thread.")
m_queue = SQLiteQueue(path=self.path, multithreading=True,
auto_commit=self.auto_commit)
def producer():
for i in range(1000):
m_queue.put('var%d' % i)
def consumer():
for i in range(1000):
x = m_queue.get(block=True)
self.assertEqual('var%d' % i, x)
c = Thread(target=consumer)
c.start()
p = Thread(target=producer)
p.start()
p.join()
c.join()
self.assertEqual(0, m_queue.size)
self.assertEqual(0, len(m_queue))
self.assertRaises(Empty, m_queue.get, block=False)
def test_multi_threaded_multi_producer(self):
"""Test sqlqueue can be used by multiple producers."""
queue = self.queue_class(path=self.path, multithreading=True,
auto_commit=self.auto_commit)
def producer(seq):
for i in range(10):
queue.put('var%d' % (i + (seq * 10)))
def consumer():
for _ in range(100):
data = queue.get(block=True)
self.assertTrue('var' in data)
c = Thread(target=consumer)
c.start()
producers = []
for seq in range(10):
t = Thread(target=producer, args=(seq,))
t.start()
producers.append(t)
for t in producers:
t.join()
c.join()
def test_multiple_consumers(self):
"""Test sqlqueue can be used by multiple consumers."""
queue = self.queue_class(path=self.path, multithreading=True,
auto_commit=self.auto_commit)
def producer():
for x in range(1000):
queue.put('var%d' % x)
counter = []
# Set all to 0
for _ in range(1000):
counter.append(0)
def consumer(index):
for i in range(200):
data = queue.get(block=True)
self.assertTrue('var' in data)
counter[index * 200 + i] = data
p = Thread(target=producer)
p.start()
consumers = []
for index in range(5):
t = Thread(target=consumer, args=(index,))
t.start()
consumers.append(t)
p.join()
for t in consumers:
t.join()
self.assertEqual(0, queue.qsize())
for x in range(1000):
self.assertNotEqual(0, counter[x],
"not 0 for counter's index %s" % x)
self.assertEqual(len(set(counter)), len(counter))
def test_task_done_with_restart(self):
"""Test that items are not deleted before task_done."""
q = self.queue_class(path=self.path, auto_commit=False)
for i in range(1, 11):
q.put(i)
self.assertEqual(1, q.get())
self.assertEqual(2, q.get())
# size is correct before task_done
self.assertEqual(8, q.qsize())
q.task_done()
# make sure the size still correct
self.assertEqual(8, q.qsize())
self.assertEqual(3, q.get())
# without task done
del q
q = SQLiteQueue(path=self.path, auto_commit=False)
# After restart, the qsize and head item are the same
self.assertEqual(8, q.qsize())
# After restart, the queue still works
self.assertEqual(3, q.get())
self.assertEqual(7, q.qsize())
def test_protocol_1(self):
shutil.rmtree(self.path, ignore_errors=True)
q = self.queue_class(path=self.path)
self.assertEqual(q._serializer.protocol,
2 if sys.version_info[0] == 2 else 4)
def test_protocol_2(self):
q = self.queue_class(path=self.path)
self.assertEqual(q._serializer.protocol,
2 if sys.version_info[0] == 2 else 4)
def test_json_serializer(self):
q = self.queue_class(
path=self.path,
serializer=serializers_json)
x = dict(
a=1,
b=2,
c=dict(
d=list(range(5)),
e=[1]
))
q.put(x)
self.assertEqual(q.get(), x)
def test_put_0(self):
q = self.queue_class(path=self.path)
q.put(0)
d = q.get(block=False)
self.assertIsNotNone(d)
def test_get_id(self):
q = self.queue_class(path=self.path)
q.put("val1")
val2_id = q.put("val2")
q.put("val3")
item = q.get(id=val2_id)
# item id should be 2
self.assertEqual(val2_id, 2)
# item should get val2
self.assertEqual(item, 'val2')
def test_get_raw(self):
q = self.queue_class(path=self.path)
q.put("val1")
item = q.get(raw=True)
# item should get val2
self.assertEqual(True, "pqid" in item)
self.assertEqual(item.get("data"), 'val1')
def test_queue(self):
q = self.queue_class(path=self.path)
q.put("val1")
q.put("val2")
q.put("val3")
# queue should get the three items
d = q.queue()
self.assertEqual(len(d), 3)
self.assertEqual(d[1].get("data"), "val2")
def test_update(self):
q = self.queue_class(path=self.path)
qid = q.put("val1")
q.update(item="val2", id=qid)
item = q.get(id=qid)
self.assertEqual(item, "val2")
class SQLite3QueueNoAutoCommitTest(SQLite3QueueTest):
def setUp(self):
self.path = tempfile.mkdtemp(suffix='sqlqueue_auto_commit')
self.auto_commit = False
self.queue_class = SQLiteQueue
def test_multiple_consumers(self):
"""
FAIL: test_multiple_consumers (
-tests.test_sqlqueue.SQLite3QueueNoAutoCommitTest)
Test sqlqueue can be used by multiple consumers.
----------------------------------------------------------------------
Traceback (most recent call last):
File "persist-queue\tests\test_sqlqueue.py", line 183,
-in test_multiple_consumers
self.assertEqual(0, queue.qsize())
AssertionError: 0 != 72
:return:
"""
self.skipTest('Skipped due to a known bug above.')
class SQLite3QueueInMemory(SQLite3QueueTest):
skipstr = 'Skipped due to occasional crash during multithreading mode.'
def setUp(self):
self.path = ":memory:"
self.auto_commit = True
self.queue_class = SQLiteQueue
def test_open_close_1000(self):
self.skipTest('Memory based sqlite is not persistent.')
def test_open_close_single(self):
self.skipTest('Memory based sqlite is not persistent.')
def test_multiple_consumers(self):
self.skipTest(self.skipstr)
def test_multi_threaded_multi_producer(self):
self.skipTest(self.skipstr)
def test_multi_threaded_parallel(self):
self.skipTest(self.skipstr)
def test_task_done_with_restart(self):
self.skipTest('Skipped due to not persistent.')
def test_protocol_2(self):
self.skipTest('In memory queue is always new.')
class FILOSQLite3QueueTest(unittest.TestCase):
def setUp(self):
self.path = tempfile.mkdtemp(suffix='filo_sqlqueue')
self.auto_commit = True
self.queue_class = SQLiteQueue
def tearDown(self):
shutil.rmtree(self.path, ignore_errors=True)
def test_open_close_1000(self):
"""Write 1000 items, close, reopen checking if all items are there"""
q = FILOSQLiteQueue(self.path, auto_commit=self.auto_commit)
for i in range(1000):
q.put('var%d' % i)
self.assertEqual(1000, q.qsize())
del q
q = FILOSQLiteQueue(self.path)
self.assertEqual(1000, q.qsize())
for i in range(1000):
data = q.get()
self.assertEqual('var%d' % (999 - i), data)
# assert adding another one still works
q.put('foobar')
data = q.get()
self.assertEqual('foobar', data)
class FILOSQLite3QueueNoAutoCommitTest(FILOSQLite3QueueTest):
def setUp(self):
self.path = tempfile.mkdtemp(suffix='filo_sqlqueue_auto_commit')
self.auto_commit = False
self.queue_class = FILOSQLiteQueue
class SQLite3UniqueQueueTest(unittest.TestCase):
def setUp(self):
self.path = tempfile.mkdtemp(suffix='sqlqueue')
self.auto_commit = True
self.queue_class = UniqueQ
def test_add_duplicate_item(self):
q = UniqueQ(self.path)
q.put(1111)
self.assertEqual(1, q.size)
# put duplicate item
q.put(1111)
self.assertEqual(1, q.size)
q.put(2222)
self.assertEqual(2, q.size)
del q
q = UniqueQ(self.path)
self.assertEqual(2, q.size)
def test_multiple_consumers(self):
"""Test UniqueQ can be used by multiple consumers."""
queue = UniqueQ(path=self.path, multithreading=True,
auto_commit=self.auto_commit)
def producer():
for x in range(1000):
queue.put('var%d' % x)
counter = []
# Set all to 0
for _ in range(1000):
counter.append(0)
def consumer(index):
for i in range(200):
data = queue.get(block=True)
self.assertTrue('var' in data)
counter[index * 200 + i] = data
p = Thread(target=producer)
p.start()
consumers = []
for index in range(5):
t = Thread(target=consumer, args=(index,))
t.start()
consumers.append(t)
p.join()
for t in consumers:
t.join()
self.assertEqual(0, queue.qsize())
for x in range(1000):
self.assertNotEqual(0, counter[x],
"not 0 for counter's index %s" % x)
self.assertEqual(len(set(counter)), len(counter))
def test_unique_dictionary_serialization_pickle(self):
queue = UniqueQ(
path=self.path,
multithreading=True,
auto_commit=self.auto_commit,
serializer=serializers_pickle,
)
queue.put({"foo": 1, "bar": 2})
self.assertEqual(queue.total, 1)
queue.put({"bar": 2, "foo": 1})
self.assertEqual(queue.total, 1)
def test_unique_dictionary_serialization_msgpack(self):
queue = UniqueQ(
path=self.path,
multithreading=True,
auto_commit=self.auto_commit,
serializer=serializers_msgpack
)
queue.put({"foo": 1, "bar": 2})
self.assertEqual(queue.total, 1)
queue.put({"bar": 2, "foo": 1})
self.assertEqual(queue.total, 1)
def test_unique_dictionary_serialization_cbor2(self):
queue = UniqueQ(
path=self.path,
multithreading=True,
auto_commit=self.auto_commit,
serializer=serializers_cbor2
)
queue.put({"foo": 1, "bar": 2})
self.assertEqual(queue.total, 1)
queue.put({"bar": 2, "foo": 1})
self.assertEqual(queue.total, 1)
def test_unique_dictionary_serialization_json(self):
queue = UniqueQ(
path=self.path,
multithreading=True,
auto_commit=self.auto_commit,
serializer=serializers_json
)
queue.put({"foo": 1, "bar": 2})
self.assertEqual(queue.total, 1)
queue.put({"bar": 2, "foo": 1})
self.assertEqual(queue.total, 1)
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