348 lines
11 KiB
Python
348 lines
11 KiB
Python
# -*- coding: utf8 -*-
|
|
# Copyright (C) PyZMQ Developers
|
|
# Distributed under the terms of the Modified BSD License.
|
|
|
|
|
|
import copy
|
|
import sys
|
|
try:
|
|
from sys import getrefcount as grc
|
|
except ImportError:
|
|
grc = None
|
|
|
|
import time
|
|
from pprint import pprint
|
|
from unittest import TestCase
|
|
|
|
import zmq
|
|
from zmq.tests import BaseZMQTestCase, SkipTest, skip_pypy, PYPY
|
|
from zmq.utils.strtypes import unicode, bytes, b, u
|
|
|
|
|
|
# some useful constants:
|
|
|
|
x = b'x'
|
|
|
|
if grc:
|
|
rc0 = grc(x)
|
|
v = memoryview(x)
|
|
view_rc = grc(x) - rc0
|
|
|
|
def await_gc(obj, rc):
|
|
"""wait for refcount on an object to drop to an expected value
|
|
|
|
Necessary because of the zero-copy gc thread,
|
|
which can take some time to receive its DECREF message.
|
|
"""
|
|
for i in range(50):
|
|
# rc + 2 because of the refs in this function
|
|
if grc(obj) <= rc + 2:
|
|
return
|
|
time.sleep(0.05)
|
|
|
|
class TestFrame(BaseZMQTestCase):
|
|
|
|
@skip_pypy
|
|
def test_above_30(self):
|
|
"""Message above 30 bytes are never copied by 0MQ."""
|
|
for i in range(5, 16): # 32, 64,..., 65536
|
|
s = (2**i)*x
|
|
self.assertEqual(grc(s), 2)
|
|
m = zmq.Frame(s, copy=False)
|
|
self.assertEqual(grc(s), 4)
|
|
del m
|
|
await_gc(s, 2)
|
|
self.assertEqual(grc(s), 2)
|
|
del s
|
|
|
|
def test_str(self):
|
|
"""Test the str representations of the Frames."""
|
|
for i in range(16):
|
|
s = (2**i)*x
|
|
m = zmq.Frame(s)
|
|
m_str = str(m)
|
|
m_str_b = b(m_str) # py3compat
|
|
self.assertEqual(s, m_str_b)
|
|
|
|
def test_bytes(self):
|
|
"""Test the Frame.bytes property."""
|
|
for i in range(1,16):
|
|
s = (2**i)*x
|
|
m = zmq.Frame(s)
|
|
b = m.bytes
|
|
self.assertEqual(s, m.bytes)
|
|
if not PYPY:
|
|
# check that it copies
|
|
self.assert_(b is not s)
|
|
# check that it copies only once
|
|
self.assert_(b is m.bytes)
|
|
|
|
def test_unicode(self):
|
|
"""Test the unicode representations of the Frames."""
|
|
s = u('asdf')
|
|
self.assertRaises(TypeError, zmq.Frame, s)
|
|
for i in range(16):
|
|
s = (2**i)*u('§')
|
|
m = zmq.Frame(s.encode('utf8'))
|
|
self.assertEqual(s, unicode(m.bytes,'utf8'))
|
|
|
|
def test_len(self):
|
|
"""Test the len of the Frames."""
|
|
for i in range(16):
|
|
s = (2**i)*x
|
|
m = zmq.Frame(s)
|
|
self.assertEqual(len(s), len(m))
|
|
|
|
@skip_pypy
|
|
def test_lifecycle1(self):
|
|
"""Run through a ref counting cycle with a copy."""
|
|
for i in range(5, 16): # 32, 64,..., 65536
|
|
s = (2**i)*x
|
|
rc = 2
|
|
self.assertEqual(grc(s), rc)
|
|
m = zmq.Frame(s, copy=False)
|
|
rc += 2
|
|
self.assertEqual(grc(s), rc)
|
|
m2 = copy.copy(m)
|
|
rc += 1
|
|
self.assertEqual(grc(s), rc)
|
|
buf = m2.buffer
|
|
|
|
rc += view_rc
|
|
self.assertEqual(grc(s), rc)
|
|
|
|
self.assertEqual(s, b(str(m)))
|
|
self.assertEqual(s, bytes(m2))
|
|
self.assertEqual(s, m.bytes)
|
|
# self.assert_(s is str(m))
|
|
# self.assert_(s is str(m2))
|
|
del m2
|
|
rc -= 1
|
|
self.assertEqual(grc(s), rc)
|
|
rc -= view_rc
|
|
del buf
|
|
self.assertEqual(grc(s), rc)
|
|
del m
|
|
rc -= 2
|
|
await_gc(s, rc)
|
|
self.assertEqual(grc(s), rc)
|
|
self.assertEqual(rc, 2)
|
|
del s
|
|
|
|
@skip_pypy
|
|
def test_lifecycle2(self):
|
|
"""Run through a different ref counting cycle with a copy."""
|
|
for i in range(5, 16): # 32, 64,..., 65536
|
|
s = (2**i)*x
|
|
rc = 2
|
|
self.assertEqual(grc(s), rc)
|
|
m = zmq.Frame(s, copy=False)
|
|
rc += 2
|
|
self.assertEqual(grc(s), rc)
|
|
m2 = copy.copy(m)
|
|
rc += 1
|
|
self.assertEqual(grc(s), rc)
|
|
buf = m.buffer
|
|
rc += view_rc
|
|
self.assertEqual(grc(s), rc)
|
|
self.assertEqual(s, b(str(m)))
|
|
self.assertEqual(s, bytes(m2))
|
|
self.assertEqual(s, m2.bytes)
|
|
self.assertEqual(s, m.bytes)
|
|
# self.assert_(s is str(m))
|
|
# self.assert_(s is str(m2))
|
|
del buf
|
|
self.assertEqual(grc(s), rc)
|
|
del m
|
|
# m.buffer is kept until m is del'd
|
|
rc -= view_rc
|
|
rc -= 1
|
|
self.assertEqual(grc(s), rc)
|
|
del m2
|
|
rc -= 2
|
|
await_gc(s, rc)
|
|
self.assertEqual(grc(s), rc)
|
|
self.assertEqual(rc, 2)
|
|
del s
|
|
|
|
@skip_pypy
|
|
def test_tracker(self):
|
|
m = zmq.Frame(b'asdf', copy=False, track=True)
|
|
self.assertFalse(m.tracker.done)
|
|
pm = zmq.MessageTracker(m)
|
|
self.assertFalse(pm.done)
|
|
del m
|
|
for i in range(10):
|
|
if pm.done:
|
|
break
|
|
time.sleep(0.1)
|
|
self.assertTrue(pm.done)
|
|
|
|
def test_no_tracker(self):
|
|
m = zmq.Frame(b'asdf', track=False)
|
|
self.assertEqual(m.tracker, None)
|
|
m2 = copy.copy(m)
|
|
self.assertEqual(m2.tracker, None)
|
|
self.assertRaises(ValueError, zmq.MessageTracker, m)
|
|
|
|
@skip_pypy
|
|
def test_multi_tracker(self):
|
|
m = zmq.Frame(b'asdf', copy=False, track=True)
|
|
m2 = zmq.Frame(b'whoda', copy=False, track=True)
|
|
mt = zmq.MessageTracker(m,m2)
|
|
self.assertFalse(m.tracker.done)
|
|
self.assertFalse(mt.done)
|
|
self.assertRaises(zmq.NotDone, mt.wait, 0.1)
|
|
del m
|
|
time.sleep(0.1)
|
|
self.assertRaises(zmq.NotDone, mt.wait, 0.1)
|
|
self.assertFalse(mt.done)
|
|
del m2
|
|
self.assertTrue(mt.wait() is None)
|
|
self.assertTrue(mt.done)
|
|
|
|
|
|
def test_buffer_in(self):
|
|
"""test using a buffer as input"""
|
|
ins = b("§§¶•ªº˜µ¬˚…∆˙åß∂©œ∑´†≈ç√")
|
|
m = zmq.Frame(memoryview(ins))
|
|
|
|
def test_bad_buffer_in(self):
|
|
"""test using a bad object"""
|
|
self.assertRaises(TypeError, zmq.Frame, 5)
|
|
self.assertRaises(TypeError, zmq.Frame, object())
|
|
|
|
def test_buffer_out(self):
|
|
"""receiving buffered output"""
|
|
ins = b("§§¶•ªº˜µ¬˚…∆˙åß∂©œ∑´†≈ç√")
|
|
m = zmq.Frame(ins)
|
|
outb = m.buffer
|
|
self.assertTrue(isinstance(outb, memoryview))
|
|
self.assert_(outb is m.buffer)
|
|
self.assert_(m.buffer is m.buffer)
|
|
|
|
@skip_pypy
|
|
def test_memoryview_shape(self):
|
|
"""memoryview shape info"""
|
|
if sys.version_info < (3,):
|
|
raise SkipTest("only test memoryviews on Python 3")
|
|
data = b("§§¶•ªº˜µ¬˚…∆˙åß∂©œ∑´†≈ç√")
|
|
n = len(data)
|
|
f = zmq.Frame(data)
|
|
view1 = f.buffer
|
|
self.assertEqual(view1.ndim, 1)
|
|
self.assertEqual(view1.shape, (n,))
|
|
self.assertEqual(view1.tobytes(), data)
|
|
view2 = memoryview(f)
|
|
self.assertEqual(view2.ndim, 1)
|
|
self.assertEqual(view2.shape, (n,))
|
|
self.assertEqual(view2.tobytes(), data)
|
|
|
|
def test_multisend(self):
|
|
"""ensure that a message remains intact after multiple sends"""
|
|
a,b = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
|
|
s = b"message"
|
|
m = zmq.Frame(s)
|
|
self.assertEqual(s, m.bytes)
|
|
|
|
a.send(m, copy=False)
|
|
time.sleep(0.1)
|
|
self.assertEqual(s, m.bytes)
|
|
a.send(m, copy=False)
|
|
time.sleep(0.1)
|
|
self.assertEqual(s, m.bytes)
|
|
a.send(m, copy=True)
|
|
time.sleep(0.1)
|
|
self.assertEqual(s, m.bytes)
|
|
a.send(m, copy=True)
|
|
time.sleep(0.1)
|
|
self.assertEqual(s, m.bytes)
|
|
for i in range(4):
|
|
r = b.recv()
|
|
self.assertEqual(s,r)
|
|
self.assertEqual(s, m.bytes)
|
|
|
|
def test_memoryview(self):
|
|
"""test messages from memoryview"""
|
|
major,minor = sys.version_info[:2]
|
|
if not (major >= 3 or (major == 2 and minor >= 7)):
|
|
raise SkipTest("memoryviews only in python >= 2.7")
|
|
|
|
s = b'carrotjuice'
|
|
v = memoryview(s)
|
|
m = zmq.Frame(s)
|
|
buf = m.buffer
|
|
s2 = buf.tobytes()
|
|
self.assertEqual(s2,s)
|
|
self.assertEqual(m.bytes,s)
|
|
|
|
def test_noncopying_recv(self):
|
|
"""check for clobbering message buffers"""
|
|
null = b'\0'*64
|
|
sa,sb = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
|
|
for i in range(32):
|
|
# try a few times
|
|
sb.send(null, copy=False)
|
|
m = sa.recv(copy=False)
|
|
mb = m.bytes
|
|
# buf = memoryview(m)
|
|
buf = m.buffer
|
|
del m
|
|
for i in range(5):
|
|
ff=b'\xff'*(40 + i*10)
|
|
sb.send(ff, copy=False)
|
|
m2 = sa.recv(copy=False)
|
|
b = buf.tobytes()
|
|
self.assertEqual(b, null)
|
|
self.assertEqual(mb, null)
|
|
self.assertEqual(m2.bytes, ff)
|
|
|
|
@skip_pypy
|
|
def test_buffer_numpy(self):
|
|
"""test non-copying numpy array messages"""
|
|
try:
|
|
import numpy
|
|
from numpy.testing import assert_array_equal
|
|
except ImportError:
|
|
raise SkipTest("requires numpy")
|
|
if sys.version_info < (2,7):
|
|
raise SkipTest("requires new-style buffer interface (py >= 2.7)")
|
|
rand = numpy.random.randint
|
|
shapes = [ rand(2,5) for i in range(5) ]
|
|
a,b = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
|
|
dtypes = [int, float, '>i4', 'B']
|
|
for i in range(1,len(shapes)+1):
|
|
shape = shapes[:i]
|
|
for dt in dtypes:
|
|
A = numpy.empty(shape, dtype=dt)
|
|
a.send(A, copy=False)
|
|
msg = b.recv(copy=False)
|
|
|
|
B = numpy.frombuffer(msg, A.dtype).reshape(A.shape)
|
|
assert_array_equal(A, B)
|
|
|
|
A = numpy.empty(shape, dtype=[('a', int), ('b', float), ('c', 'a32')])
|
|
A['a'] = 1024
|
|
A['b'] = 1e9
|
|
A['c'] = 'hello there'
|
|
a.send(A, copy=False)
|
|
msg = b.recv(copy=False)
|
|
|
|
B = numpy.frombuffer(msg, A.dtype).reshape(A.shape)
|
|
assert_array_equal(A, B)
|
|
|
|
def test_frame_more(self):
|
|
"""test Frame.more attribute"""
|
|
frame = zmq.Frame(b"hello")
|
|
self.assertFalse(frame.more)
|
|
sa,sb = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
|
|
sa.send_multipart([b'hi', b'there'])
|
|
frame = self.recv(sb, copy=False)
|
|
self.assertTrue(frame.more)
|
|
if zmq.zmq_version_info()[0] >= 3 and not PYPY:
|
|
self.assertTrue(frame.get(zmq.MORE))
|
|
frame = self.recv(sb, copy=False)
|
|
self.assertFalse(frame.more)
|
|
if zmq.zmq_version_info()[0] >= 3 and not PYPY:
|
|
self.assertFalse(frame.get(zmq.MORE))
|
|
|