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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
import os
import subprocess
import time
import unittest
class Popen(subprocess.Popen):
# We always use these options
def __init__(self, args, **kwargs):
# Add the module directory to the path to be able to find the examples
path = f"{os.path.dirname(__file__)}{os.pathsep}{os.environ['PATH']}"
super(Popen, self).\
__init__(args,
shell=False,
stderr=subprocess.STDOUT,
stdout=subprocess.PIPE,
universal_newlines=True,
env={'PATH': path},
**kwargs)
# Like subprocess.run with our defaults but returning the Popen object
def run(args, **kwargs):
p = Popen(args, **kwargs)
p.wait()
return p
def check_call(args, **kwargs):
# Add the module directory to the path to be able to find the examples
path = f"{os.path.dirname(__file__)}{os.pathsep}{os.environ['PATH']}"
return subprocess.check_call(args, env={'PATH': path}, **kwargs)
class ExamplesTest(unittest.TestCase):
def test_helloworld(self, example="helloworld.py"):
with run([example]) as p:
output = [l.strip() for l in p.stdout]
self.assertEqual(output, ['Hello World!'])
def test_helloworld_direct(self):
self.test_helloworld('helloworld_direct.py')
def test_helloworld_blocking(self):
self.test_helloworld('helloworld_blocking.py')
def test_helloworld_tornado(self):
self.test_helloworld('helloworld_tornado.py')
def test_helloworld_direct_tornado(self):
self.test_helloworld('helloworld_direct_tornado.py')
def test_simple_send_recv(self, recv='simple_recv.py', send='simple_send.py'):
with Popen([recv]) as r:
with run([send]):
pass
actual = [l.strip() for l in r.stdout]
expected = ["{'sequence': %i}" % (i + 1,) for i in range(100)]
self.assertEqual(actual, expected)
def test_client_server(self, client=['client.py'], server=['server.py'], sleep=0):
with Popen(server) as s:
if sleep:
time.sleep(sleep)
with run(client) as c:
actual = [l.strip() for l in c.stdout]
inputs = ["Twas brillig, and the slithy toves",
"Did gire and gymble in the wabe.",
"All mimsy were the borogroves,",
"And the mome raths outgrabe."]
expected = ["%s => %s" % (l, l.upper()) for l in inputs]
self.assertEqual(actual, expected)
s.terminate()
def test_sync_client_server(self):
self.test_client_server(client=['sync_client.py'])
def test_client_server_tx(self):
self.test_client_server(server=['server_tx.py'])
def test_sync_client_server_tx(self):
self.test_client_server(client=['sync_client.py'], server=['server_tx.py'])
def test_client_server_direct(self):
self.test_client_server(client=['client.py', '-a', 'localhost:8888/examples'],
server=['server_direct.py'], sleep=0.5)
def test_sync_client_server_direct(self):
self.test_client_server(client=['sync_client.py', '-a', 'localhost:8888/examples'],
server=['server_direct.py'], sleep=0.5)
def test_db_send_recv(self):
self.maxDiff = None
# setup databases
check_call(['db_ctrl.py', 'init', './src_db'])
check_call(['db_ctrl.py', 'init', './dst_db'])
with Popen(['db_ctrl.py', 'insert', './src_db'], stdin=subprocess.PIPE) as fill:
for i in range(100):
fill.stdin.write("Message-%i\n" % (i + 1))
fill.stdin.close()
# run send and recv
with Popen(['db_recv.py', '-m', '100']) as r:
with run(['db_send.py', '-m', '100']):
pass
r.wait()
# verify output of receive
actual = [l.strip() for l in r.stdout]
expected = ["inserted message %i" % (i + 1) for i in range(100)]
self.assertEqual(actual, expected)
# verify state of databases
with run(['db_ctrl.py', 'list', './dst_db']) as v:
expected = ["(%i, 'Message-%i')" % (i + 1, i + 1) for i in range(100)]
actual = [l.strip() for l in v.stdout]
self.assertEqual(actual, expected)
def test_tx_send_tx_recv(self):
self.test_simple_send_recv(recv='tx_recv.py', send='tx_send.py')
def test_simple_send_direct_recv(self):
self.maxDiff = None
with Popen(['direct_recv.py', '-a', 'localhost:8888']) as r:
time.sleep(0.5)
with run(['simple_send.py', '-a', 'localhost:8888']):
pass
r.wait()
actual = [l.strip() for l in r.stdout]
expected = ["{'sequence': %i}" % (i + 1,) for i in range(100)]
self.assertEqual(actual, expected)
def test_direct_send_simple_recv(self):
with Popen(['direct_send.py', '-a', 'localhost:8888']):
time.sleep(0.5)
with run(['simple_recv.py', '-a', 'localhost:8888']) as r:
actual = [l.strip() for l in r.stdout]
expected = ["{'sequence': %i}" % (i + 1,) for i in range(100)]
self.assertEqual(actual, expected)
def test_selected_recv(self):
with run(['colour_send.py']):
pass
with run(['selected_recv.py', '-m', '50']) as r:
actual = [l.strip() for l in r.stdout]
expected = ["green %i" % (i + 1) for i in range(100) if i % 2 == 0]
self.assertEqual(actual, expected)
with run(['simple_recv.py', '-m', '50']) as r:
actual = [l.strip() for l in r.stdout]
expected = ["red %i" % (i + 1) for i in range(100) if i % 2 == 1]
self.assertEqual(actual, expected)
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