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471 lines
13 KiB
Python
471 lines
13 KiB
Python
import unittest
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import gevent.testing as greentest
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from gevent.testing import TestCase
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import gevent
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from gevent.hub import get_hub, LoopExit
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from gevent import util
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from gevent import queue
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from gevent.queue import Empty, Full
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from gevent.event import AsyncResult
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from gevent.testing.timing import AbstractGenericGetTestCase
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# pylint:disable=too-many-ancestors
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class TestQueue(TestCase):
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def test_send_first(self):
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self.switch_expected = False
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q = queue.Queue()
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q.put('hi')
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self.assertEqual(q.peek(), 'hi')
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self.assertEqual(q.get(), 'hi')
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def test_peek_empty(self):
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q = queue.Queue()
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# No putters waiting, in the main loop: LoopExit
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with self.assertRaises(LoopExit):
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q.peek()
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def waiter(q):
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self.assertRaises(Empty, q.peek, timeout=0.01)
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g = gevent.spawn(waiter, q)
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gevent.sleep(0.1)
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g.join()
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def test_peek_multi_greenlet(self):
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q = queue.Queue()
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g = gevent.spawn(q.peek)
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g.start()
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gevent.sleep(0)
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q.put(1)
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g.join()
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self.assertTrue(g.exception is None)
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self.assertEqual(q.peek(), 1)
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def test_send_last(self):
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q = queue.Queue()
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def waiter(q):
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with gevent.Timeout(0.1 if not greentest.RUNNING_ON_APPVEYOR else 0.5):
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self.assertEqual(q.get(), 'hi2')
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return "OK"
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p = gevent.spawn(waiter, q)
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gevent.sleep(0.01)
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q.put('hi2')
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gevent.sleep(0.01)
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assert p.get(timeout=0) == "OK"
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def test_max_size(self):
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q = queue.Queue(2)
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results = []
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def putter(q):
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q.put('a')
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results.append('a')
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q.put('b')
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results.append('b')
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q.put('c')
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results.append('c')
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return "OK"
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p = gevent.spawn(putter, q)
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gevent.sleep(0)
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self.assertEqual(results, ['a', 'b'])
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self.assertEqual(q.get(), 'a')
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gevent.sleep(0)
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self.assertEqual(results, ['a', 'b', 'c'])
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self.assertEqual(q.get(), 'b')
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self.assertEqual(q.get(), 'c')
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assert p.get(timeout=0) == "OK"
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def test_zero_max_size(self):
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q = queue.Channel()
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def sender(evt, q):
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q.put('hi')
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evt.set('done')
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def receiver(evt, q):
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x = q.get()
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evt.set(x)
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e1 = AsyncResult()
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e2 = AsyncResult()
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p1 = gevent.spawn(sender, e1, q)
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gevent.sleep(0.001)
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self.assertTrue(not e1.ready())
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p2 = gevent.spawn(receiver, e2, q)
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self.assertEqual(e2.get(), 'hi')
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self.assertEqual(e1.get(), 'done')
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with gevent.Timeout(0):
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gevent.joinall([p1, p2])
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def test_multiple_waiters(self):
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# tests that multiple waiters get their results back
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q = queue.Queue()
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def waiter(q, evt):
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evt.set(q.get())
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sendings = ['1', '2', '3', '4']
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evts = [AsyncResult() for x in sendings]
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for i, _ in enumerate(sendings):
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gevent.spawn(waiter, q, evts[i]) # XXX use waitall for them
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gevent.sleep(0.01) # get 'em all waiting
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results = set()
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def collect_pending_results():
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for e in evts:
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with gevent.Timeout(0.001, False):
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x = e.get()
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results.add(x)
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return len(results)
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q.put(sendings[0])
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self.assertEqual(collect_pending_results(), 1)
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q.put(sendings[1])
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self.assertEqual(collect_pending_results(), 2)
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q.put(sendings[2])
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q.put(sendings[3])
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self.assertEqual(collect_pending_results(), 4)
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def test_waiters_that_cancel(self):
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q = queue.Queue()
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def do_receive(q, evt):
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with gevent.Timeout(0, RuntimeError()):
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try:
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result = q.get()
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evt.set(result) # pragma: no cover (should have raised)
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except RuntimeError:
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evt.set('timed out')
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evt = AsyncResult()
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gevent.spawn(do_receive, q, evt)
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self.assertEqual(evt.get(), 'timed out')
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q.put('hi')
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self.assertEqual(q.get(), 'hi')
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def test_senders_that_die(self):
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q = queue.Queue()
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def do_send(q):
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q.put('sent')
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gevent.spawn(do_send, q)
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self.assertEqual(q.get(), 'sent')
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def test_two_waiters_one_dies(self):
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def waiter(q, evt):
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evt.set(q.get())
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def do_receive(q, evt):
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with gevent.Timeout(0, RuntimeError()):
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try:
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result = q.get()
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evt.set(result) # pragma: no cover (should have raised)
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except RuntimeError:
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evt.set('timed out')
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q = queue.Queue()
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dying_evt = AsyncResult()
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waiting_evt = AsyncResult()
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gevent.spawn(do_receive, q, dying_evt)
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gevent.spawn(waiter, q, waiting_evt)
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gevent.sleep(0.1)
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q.put('hi')
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self.assertEqual(dying_evt.get(), 'timed out')
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self.assertEqual(waiting_evt.get(), 'hi')
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def test_two_bogus_waiters(self):
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def do_receive(q, evt):
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with gevent.Timeout(0, RuntimeError()):
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try:
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result = q.get()
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evt.set(result) # pragma: no cover (should have raised)
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except RuntimeError:
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evt.set('timed out')
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q = queue.Queue()
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e1 = AsyncResult()
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e2 = AsyncResult()
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gevent.spawn(do_receive, q, e1)
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gevent.spawn(do_receive, q, e2)
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gevent.sleep(0.1)
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q.put('sent')
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self.assertEqual(e1.get(), 'timed out')
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self.assertEqual(e2.get(), 'timed out')
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self.assertEqual(q.get(), 'sent')
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class TestChannel(TestCase):
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def test_send(self):
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channel = queue.Channel()
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events = []
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def another_greenlet():
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events.append(channel.get())
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events.append(channel.get())
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g = gevent.spawn(another_greenlet)
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events.append('sending')
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channel.put('hello')
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events.append('sent hello')
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channel.put('world')
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events.append('sent world')
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self.assertEqual(['sending', 'hello', 'sent hello', 'world', 'sent world'], events)
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g.get()
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def test_wait(self):
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channel = queue.Channel()
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events = []
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def another_greenlet():
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events.append('sending hello')
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channel.put('hello')
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events.append('sending world')
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channel.put('world')
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events.append('sent world')
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g = gevent.spawn(another_greenlet)
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events.append('waiting')
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events.append(channel.get())
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events.append(channel.get())
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self.assertEqual(['waiting', 'sending hello', 'hello', 'sending world', 'world'], events)
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gevent.sleep(0)
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self.assertEqual(['waiting', 'sending hello', 'hello', 'sending world', 'world', 'sent world'], events)
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g.get()
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def test_iterable(self):
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channel = queue.Channel()
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gevent.spawn(channel.put, StopIteration)
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r = list(channel)
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self.assertEqual(r, [])
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class TestJoinableQueue(TestCase):
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def test_task_done(self):
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channel = queue.JoinableQueue()
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X = object()
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gevent.spawn(channel.put, X)
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result = channel.get()
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self.assertIs(result, X)
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self.assertEqual(1, channel.unfinished_tasks)
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channel.task_done()
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self.assertEqual(0, channel.unfinished_tasks)
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class TestNoWait(TestCase):
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def test_put_nowait_simple(self):
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result = []
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q = queue.Queue(1)
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def store_result(func, *args):
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result.append(func(*args))
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run_callback = get_hub().loop.run_callback
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run_callback(store_result, util.wrap_errors(Full, q.put_nowait), 2)
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run_callback(store_result, util.wrap_errors(Full, q.put_nowait), 3)
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gevent.sleep(0)
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assert len(result) == 2, result
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assert result[0] is None, result
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assert isinstance(result[1], queue.Full), result
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def test_get_nowait_simple(self):
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result = []
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q = queue.Queue(1)
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q.put(4)
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def store_result(func, *args):
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result.append(func(*args))
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run_callback = get_hub().loop.run_callback
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run_callback(store_result, util.wrap_errors(Empty, q.get_nowait))
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run_callback(store_result, util.wrap_errors(Empty, q.get_nowait))
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gevent.sleep(0)
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assert len(result) == 2, result
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assert result[0] == 4, result
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assert isinstance(result[1], queue.Empty), result
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# get_nowait must work from the mainloop
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def test_get_nowait_unlock(self):
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result = []
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q = queue.Queue(1)
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p = gevent.spawn(q.put, 5)
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def store_result(func, *args):
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result.append(func(*args))
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assert q.empty(), q
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gevent.sleep(0)
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assert q.full(), q
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get_hub().loop.run_callback(store_result, q.get_nowait)
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gevent.sleep(0)
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assert q.empty(), q
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assert result == [5], result
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assert p.ready(), p
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assert p.dead, p
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assert q.empty(), q
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def test_get_nowait_unlock_channel(self):
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# get_nowait runs fine in the hub, and
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# it switches to a waiting putter if needed.
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result = []
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q = queue.Channel()
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p = gevent.spawn(q.put, 5)
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def store_result(func, *args):
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result.append(func(*args))
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self.assertTrue(q.empty())
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self.assertTrue(q.full())
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gevent.sleep(0.001)
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self.assertTrue(q.empty())
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self.assertTrue(q.full())
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get_hub().loop.run_callback(store_result, q.get_nowait)
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gevent.sleep(0.001)
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self.assertTrue(q.empty())
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self.assertTrue(q.full())
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self.assertEqual(result, [5])
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self.assertTrue(p.ready())
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self.assertTrue(p.dead)
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self.assertTrue(q.empty())
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# put_nowait must work from the mainloop
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def test_put_nowait_unlock(self):
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result = []
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q = queue.Queue()
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p = gevent.spawn(q.get)
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def store_result(func, *args):
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result.append(func(*args))
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self.assertTrue(q.empty(), q)
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self.assertFalse(q.full(), q)
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gevent.sleep(0.001)
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self.assertTrue(q.empty(), q)
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self.assertFalse(q.full(), q)
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get_hub().loop.run_callback(store_result, q.put_nowait, 10)
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self.assertFalse(p.ready(), p)
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gevent.sleep(0.001)
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self.assertEqual(result, [None])
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self.assertTrue(p.ready(), p)
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self.assertFalse(q.full(), q)
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self.assertTrue(q.empty(), q)
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class TestJoinEmpty(TestCase):
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def test_issue_45(self):
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"""Test that join() exits immediately if not jobs were put into the queue"""
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self.switch_expected = False
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q = queue.JoinableQueue()
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q.join()
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class AbstractTestWeakRefMixin(object):
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def test_weak_reference(self):
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import weakref
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one = self._makeOne()
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ref = weakref.ref(one)
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self.assertIs(one, ref())
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class TestGetInterrupt(AbstractTestWeakRefMixin, AbstractGenericGetTestCase):
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Timeout = Empty
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kind = queue.Queue
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def wait(self, timeout):
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return self._makeOne().get(timeout=timeout)
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def _makeOne(self):
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return self.kind()
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class TestGetInterruptJoinableQueue(TestGetInterrupt):
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kind = queue.JoinableQueue
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class TestGetInterruptLifoQueue(TestGetInterrupt):
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kind = queue.LifoQueue
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class TestGetInterruptPriorityQueue(TestGetInterrupt):
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kind = queue.PriorityQueue
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class TestGetInterruptChannel(TestGetInterrupt):
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kind = queue.Channel
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class TestPutInterrupt(AbstractGenericGetTestCase):
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kind = queue.Queue
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Timeout = Full
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def setUp(self):
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super(TestPutInterrupt, self).setUp()
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self.queue = self._makeOne()
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def wait(self, timeout):
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while not self.queue.full():
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self.queue.put(1)
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return self.queue.put(2, timeout=timeout)
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def _makeOne(self):
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return self.kind(1)
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class TestPutInterruptJoinableQueue(TestPutInterrupt):
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kind = queue.JoinableQueue
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class TestPutInterruptLifoQueue(TestPutInterrupt):
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kind = queue.LifoQueue
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class TestPutInterruptPriorityQueue(TestPutInterrupt):
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kind = queue.PriorityQueue
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class TestPutInterruptChannel(TestPutInterrupt):
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kind = queue.Channel
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def _makeOne(self):
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return self.kind()
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if hasattr(queue, 'SimpleQueue'):
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class TestGetInterruptSimpleQueue(TestGetInterrupt):
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kind = queue.SimpleQueue
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def test_raises_timeout_Timeout(self):
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raise unittest.SkipTest("Not supported")
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test_raises_timeout_Timeout_exc_customized = test_raises_timeout_Timeout
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test_outer_timeout_is_not_lost = test_raises_timeout_Timeout
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del AbstractGenericGetTestCase
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if __name__ == '__main__':
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greentest.main()
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