test_bcp.py 12.6 KB
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#!/usr/bin/env python
# vim: set fileencoding=utf-8 :

###############################################################################
#                                                                             #
# Copyright (c) 2019 Idiap Research Institute, http://www.idiap.ch/           #
# Contact: beat.support@idiap.ch                                              #
#                                                                             #
# This file is part of the beat.core module of the BEAT platform.             #
#                                                                             #
# Commercial License Usage                                                    #
# Licensees holding valid commercial BEAT licenses may use this file in       #
# accordance with the terms contained in a written agreement between you      #
# and Idiap. For further information contact tto@idiap.ch                     #
#                                                                             #
# Alternatively, this file may be used under the terms of the GNU Affero      #
# Public License version 3 as published by the Free Software and appearing    #
# in the file LICENSE.AGPL included in the packaging of this file.            #
# The BEAT platform is distributed in the hope that it will be useful, but    #
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY  #
# or FITNESS FOR A PARTICULAR PURPOSE.                                        #
#                                                                             #
# You should have received a copy of the GNU Affero Public License along      #
# with the BEAT platform. If not, see http://www.gnu.org/licenses/.           #
#                                                                             #
###############################################################################


# Tests for experiment execution

import os
import json

import unittest
import multiprocessing
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import queue
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import zmq

from ..bcpapi import BCP
from ..bcpapi.client import BeatComputationClient
from ..bcpapi.execution import ExecutionProcess
from ..bcpapi.processor import BeatComputationProcessor

from ..bcp import worker
from ..bcp import broker

from ..database import Database
from ..utils import find_free_port
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from ..dock import Host
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from . import prefix, tmp_prefix
from . import VERBOSE_BCP_LOGGING

# ----------------------------------------------------------


CONFIGURATION1 = {
    "queue": "queue",
    "inputs": {
        "in": {
            "set": "double",
            "protocol": "double",
            "database": "integers_db/1",
            "output": "a",
            "path": "ec/89/e5/6e161d2cb012ef6ac8acf59bf453a6328766f90dc9baba9eb14ea23c55.db",
            "endpoint": "a",
            "hash": "ec89e56e161d2cb012ef6ac8acf59bf453a6328766f90dc9baba9eb14ea23c55",
            "channel": "integers",
        }
    },
    "algorithm": "legacy/echo/1",
    "parameters": {},
    "environment": {"name": "Python 2.7", "version": "1.3.0"},
    "outputs": {
        "out": {
            "path": "20/61/b6/2df3c3bedd5366f4a625c5d87ffbf5a26007c46c456e9abf21b46c6681",
            "endpoint": "out",
            "hash": "2061b62df3c3bedd5366f4a625c5d87ffbf5a26007c46c456e9abf21b46c6681",
            "channel": "integers",
        }
    },
    "nb_slots": 1,
    "channel": "integers",
}


# ----------------------------------------------------------


CONFIGURATION2 = {
    "queue": "queue",
    "inputs": {
        "in": {
            "set": "double",
            "protocol": "double",
            "database": "integers_db/1",
            "output": "a",
            "path": "ec/89/e5/6e161d2cb012ef6ac8acf59bf453a6328766f90dc9baba9eb14ea23c55.db",
            "endpoint": "a",
            "hash": "ec89e56e161d2cb012ef6ac8acf59bf453a6328766f90dc9baba9eb14ea23c55",
            "channel": "integers",
        }
    },
    "algorithm": "legacy/echo/1",
    "parameters": {},
    "environment": {"name": "Python 2.7", "version": "1.3.0"},
    "outputs": {
        "out": {
            "path": "40/61/b6/2df3c3bedd5366f4a625c5d87ffbf5a26007c46c456e9abf21b46c6681",
            "endpoint": "out",
            "hash": "4061b62df3c3bedd5366f4a625c5d87ffbf5a26007c46c456e9abf21b46c6681",
            "channel": "integers",
        }
    },
    "nb_slots": 1,
    "channel": "integers",
}


# ----------------------------------------------------------


class ZMQBrokerProcess(multiprocessing.Process):
    def __init__(self, port, verbose, callbacks=None):
        super(ZMQBrokerProcess, self).__init__()
        self.port = port
        self.verbose = verbose
        self.callbacks = callbacks

    def run(self):
        return broker.run(self.port, verbose=self.verbose, callbacks=self.callbacks)


class ZMQWorkerProcess(multiprocessing.Process):
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    def __init__(
        self, address, name, verbose, use_docker=False, docker_images_cache=None
    ):
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        super(ZMQWorkerProcess, self).__init__()
        self.broker_address = address
        self.service_name = name
        self.verbose = verbose
        self.use_docker = use_docker
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        self.docker_images_cache = None
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    def run(self):
        return worker.run(
            self.broker_address,
            service_name=self.service_name,
            verbose=self.verbose,
            prefix=prefix,
            cache=tmp_prefix,
            use_docker=self.use_docker,
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            docker_images_cache=self.docker_images_cache,
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        )


# ----------------------------------------------------------


class ExcecutionTestCase(unittest.TestCase):
    def prepare_databases(self, configuration):
        for _, input_cfg in configuration["inputs"].items():
            database = Database(prefix, input_cfg["database"])
            view = database.view(input_cfg["protocol"], input_cfg["set"])
            view.index(os.path.join(tmp_prefix, input_cfg["path"]))


class TestBroker(unittest.TestCase):
    def __on_ready(self, name):
        self.queue.put("ready")

    def __on_gone(self, name):
        self.queue.put("gone")

    def setUp(self):
        self.queue = multiprocessing.Queue()

    def test_callback(self):
        worker_name = b"test_worker"

        port = find_free_port()
        broker_address = "tcp://localhost:{}".format(port)

        broker_p = ZMQBrokerProcess(
            port, VERBOSE_BCP_LOGGING, (self.__on_ready, self.__on_gone)
        )
        broker_p.start()

        worker = ZMQWorkerProcess(broker_address, worker_name, VERBOSE_BCP_LOGGING)
        worker.start()
        worker.join(2)  # Give the worker enough time to announce itself
        worker.terminate()
        worker.join()

        max_rounds = 5
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        queue_messages = []
        while max_rounds > 0 and len(queue_messages) < 2:
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            max_rounds -= 1
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            try:
                message = self.queue.get(block=True, timeout=5)
            except queue.Empty:
                pass
            else:
                queue_messages.append(message)
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        broker_p.terminate()
        broker_p.join()

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        self.assertEqual(len(queue_messages), 2)
        self.assertEqual(queue_messages[0], "ready")
        self.assertEqual(queue_messages[1], "gone")
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class TestBCP(ExcecutionTestCase):
    use_docker = False
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    docker_images_cache = None
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    def setUp(self):
        self.worker_name = b"test_worker"

        port = find_free_port()
        broker_address = "tcp://localhost:{}".format(port)

        self.broker_p = ZMQBrokerProcess(port, VERBOSE_BCP_LOGGING)
        self.broker_p.start()

        self.worker = ZMQWorkerProcess(
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            broker_address,
            self.worker_name,
            VERBOSE_BCP_LOGGING,
            self.use_docker,
            self.docker_images_cache,
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        )
        self.worker.start()

        self.client = BeatComputationClient(broker_address, VERBOSE_BCP_LOGGING)

    def tearDown(self):
        self.worker.terminate()
        self.worker.join()
        self.broker_p.terminate()
        self.broker_p.join()
        self.client = None

    def test_cancel_unknown(self):
        request = [BCP.BCPE_CANCEL, b"1"]
        self.client.send(self.worker_name, request)

        reply = None
        while reply is None:
            try:
                reply = self.client.recv()
            except KeyboardInterrupt:
                break

        self.assertEqual(reply[1], BCP.BCPP_ERROR)
        self.assertEqual(reply[2], b"Unknown job: 1")

    def test_cancel(self):
        self.prepare_databases(CONFIGURATION1)
        job_id = b"1"

        request = [BCP.BCPE_EXECUTE, job_id, json.dumps(CONFIGURATION1).encode("utf-8")]
        self.client.send(self.worker_name, request)

        request = [BCP.BCPE_CANCEL, job_id]
        self.client.send(self.worker_name, request)

        messages = []
        while len(messages) < 3:
            try:
                reply = self.client.recv()
            except KeyboardInterrupt:
                break
            else:
                if reply:
                    messages.append(reply)

        self.assertEqual(messages[0][1], BCP.BCPP_JOB_RECEIVED)
        self.assertEqual(messages[0][2], job_id)
        self.assertEqual(messages[1][1], BCP.BCPP_JOB_STARTED)
        self.assertEqual(messages[1][2], job_id)
        self.assertEqual(messages[2][1], BCP.BCPP_JOB_CANCELLED)
        self.assertEqual(messages[2][2], job_id)

    def test_execute(self):
        self.prepare_databases(CONFIGURATION1)
        job_id = b"1"

        request = [BCP.BCPE_EXECUTE, job_id, json.dumps(CONFIGURATION1).encode("utf-8")]
        self.client.send(self.worker_name, request)

        messages = []
        while len(messages) < 3:
            try:
                reply = self.client.recv()
            except KeyboardInterrupt:
                break
            else:
                if reply:
                    messages.append(reply)

        self.assertEqual(messages[0][1], BCP.BCPP_JOB_RECEIVED)
        self.assertEqual(messages[0][2], job_id)
        self.assertEqual(messages[1][1], BCP.BCPP_JOB_STARTED)
        self.assertEqual(messages[1][2], job_id)
        self.assertEqual(messages[2][1], BCP.BCPP_JOB_DONE)
        self.assertEqual(messages[2][2], job_id)
        self.assertEqual(len(messages[2]), 4)


class TestBCPDocker(TestBCP):
    use_docker = True

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    @classmethod
    def setUpClass(cls):
        cls.images_cache = os.path.join(tmp_prefix, "docker_images_cache.json")
        cls.host = Host(images_cache=cls.docker_images_cache, raise_on_errors=False)

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class TestExcecutionProcess(ExcecutionTestCase):
    address = "ipc://execution_feed"

    def tearDown(self):
        os.remove(self.address.split("//")[1])

    def setup_process(self):
        self.prepare_databases(CONFIGURATION1)
        process = ExecutionProcess(
            self.address, b"1", prefix, CONFIGURATION1, tmp_prefix, VERBOSE_BCP_LOGGING
        )
        process.start()
        return process

    def test_execution_process(self):
        ctx = zmq.Context()
        socket = ctx.socket(zmq.ROUTER)
        socket.linger = 0
        socket.bind(self.address)

        poller = zmq.Poller()
        poller.register(socket, zmq.POLLIN)

        process = self.setup_process()
        done = False

        messages = []
        while True:
            try:
                items = poller.poll(1000)
            except KeyboardInterrupt:
                break

            if items:
                msg = socket.recv_multipart()
                messages.append(msg)

                result = msg[1]
                if result == BCP.BCPP_JOB_DONE:
                    done = True
                    break
                elif result in [BCP.BCPP_JOB_ERROR, BCP.BCPP_ERROR]:
                    break

        process.terminate()
        process.join()
        ctx.destroy()

        self.assertTrue(done)
        self.assertEqual(process.queue.get(), "started")
        self.assertEqual(messages[0][1], BCP.BCPP_JOB_DONE)

    def test_processor(self):
        poller = zmq.Poller()
        processor = BeatComputationProcessor(poller, self.address, VERBOSE_BCP_LOGGING)

        process = self.setup_process()

        done = False

        messages = []
        while True:
            try:
                items = poller.poll(1000)
            except KeyboardInterrupt:
                break

            if items:
                msg = processor.process()
                messages.append(msg)

                result = msg[1]
                if result == BCP.BCPP_JOB_DONE:
                    done = True
                    break
                elif result in [BCP.BCPP_JOB_ERROR, BCP.BCPP_ERROR]:
                    break

        process.terminate()
        process.join()

        self.assertTrue(done)
        self.assertEqual(process.queue.get(), "started")
        self.assertEqual(messages[0][1], BCP.BCPP_JOB_DONE)