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How to use test_multiprocess method in Molotov

Best Python code snippet using molotov_python

multiptest.py

Source:multiptest.py

...60    if ns:61        print("NS is set to %s" % ns)62        print(os.getpid())63        print(ns.memes.nd.dreams())64def test_multiprocess(ns=None):65    """66    Simplification of the steps to test mutliprocessing module connectivity67    :param SyncManager.Namespace ns: shared namespace68    """69    rp = Process(target=multicalled, args=(ns,))70    rp.start()71    rp.join()72def test_subprocess():73    """74    Simplification of the steps to test subprocessing module connectivity75    """76    p = subprocess.Popen(["python3.7", "multi2test.py"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)77    p.wait()78if __name__ == "__main__":79    print("Launching Server process")80    mgr = themanager()81    SP = Process(target=mgr.get_server().serve_forever)82    SP.start()83    print("\nTesting multiprocess connect")84    test_multiprocess()85    print("\nTesting subprocess connect")86    test_subprocess()87    # Testing with a SyncManager object instead88    # Nonsensical with subprocesses89    print("\nTesting with a syncmanager namespace")90    test_multiprocess(mainc)91    """92    print("\nTesting with a syncmanager namespace")93    NS = Manager().Namespace()94    NS.A = A95    test_multiprocess(NS)96    print("Setting a new value")97    B = NS.A98    B.value = "a brand new value"99    NS.A = B100    test_multiprocess(NS)101    """...

helper.py

Source:helper.py

1#!/usr/bin/env python2# -*- coding: utf-8 -*-3from __future__ import print_function4from random import randint, sample5from pytq import Task6n = 207input_data_queue2 = [i for i in range(1, n + 1)]8input_data_queue1 = list(sample(input_data_queue2, int(n / 4.0)))9class HashAndProcessImplement(object):10    def user_hash_input(self, input_data):11        """12        1 -> "1"13        """14        return str(input_data)15    def user_process(self, input_data):16        """17        1 -> 100018        """19        return input_data * 100020def validate_schduler_implement(scheduler,21                                test_multiprocess=True,22                                processes=None):23    """24    :param scheduler: the scheduler you wanna validate with.25    :param test_multiprocess: whether we test with multiprocess.26    :param processes: number of processes we want to use, don't exceed max27        db connection number!28    """29    # Reset a scheduler30    scheduler.clear_all()31    scheduler.log_on()32    scheduler.do(input_data_queue1, ignore_error=False)33    assert len(scheduler) == len(input_data_queue1)34    scheduler.do(input_data_queue2, ignore_error=False)35    assert len(scheduler) == len(input_data_queue2)36    for input_data in input_data_queue2:37        task = Task(id=scheduler._hash_input(38            input_data), input_data=input_data)39        assert scheduler._is_duplicate(task) is True40    for input_data in input_data_queue2:41        scheduler.get_output(input_data)42        assert scheduler.get_output(43            input_data) == scheduler.user_process(input_data)44    for id, output_data in scheduler.items():45        assert int(id) * 1000 == output_data46    if test_multiprocess:47        scheduler.clear_all()48        scheduler.do(49            input_data_queue1,50            multiprocess=True, processes=processes,51            ignore_error=False,52        )53        assert len(scheduler) == len(input_data_queue1)54        scheduler.do(55            input_data_queue2, multiprocess=True, processes=processes,56            ignore_error=False,57        )58        assert len(scheduler) == len(input_data_queue2)59        for id, output_data in scheduler.items():...

multi_process.py

Source:multi_process.py

...18    start = time.time()19    time.sleep(random.random() * 3)20    cost = time.time() - start21    print(f'Task {name} runs {cost:.2f} seconds.')22def test_multiprocess():23    """24    Test multiprocessing.25    """26    print('Parent process %s.' % os.getpid())27    p = Pool(4)28    for i in range(5):29        p.apply_async(long_time_task, args=(i,))30    print('Waiting for all subprocesses done...')31    p.close()32    p.join()33    print('All subprocesses done.')34def write(q: Queue) -> None:35    """36    Write data to a queue.37    """38    print(f'Process[{os.getpid()}] start to write...')39    for v in ['A', 'B', 'C']:40        q.put(v)41        print(f'Put {v} to queue...')42        time.sleep(random.random())43    print(f'Process[{os.getpid()}] to write done.')44def read(q: Queue) -> None:45    """46    Read data from a queue.47    """48    print(f'Process[{os.getpid()}] start to read...')49    while True:50        value = q.get(True)51        print(f'Get {value} from queue...')52def test_communication_among_processes():53    """54    Test communication among processes.55    """56    q = Queue()57    pw = Process(target=write, args=(q,))58    pr = Process(target=read, args=(q,))59    pw.start()60    pr.start()61    pw.join()62    pr.terminate()63if __name__ == '__main__':64    # test_multiprocess()...

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