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test_runner.py
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test_runner.py
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"""
Script to run both frontend and backend tests for CodaLab. Depending on the test modules, this script
will also create a second instance of CodaLab to test against.
"""
from tests.cli.test_cli import TestModule # type: ignore
import argparse
import random
import socket
import string
import subprocess
import sys
import time
class TestRunner(object):
_CODALAB_SERVICE_SCRIPT = 'codalab_service.py'
_TEMP_INSTANCE_NEEDED_TESTS = ['all', 'default', 'copy']
_FRONTEND_MODULE = 'frontend'
@staticmethod
def _docker_exec(command):
return 'docker exec codalab_rest-server_1 /bin/bash -c "{}"'.format(command)
@staticmethod
def _create_temp_instance(name, version):
def get_free_ports(num_ports):
socks = [socket.socket(socket.AF_INET, socket.SOCK_STREAM) for _ in range(num_ports)]
for s in socks:
# When binding a socket to port 0, the kernel will assign it a free port
s.bind(('', 0))
ports = [str(s.getsockname()[1]) for s in socks]
for s in socks:
# Queue up to 10 requests
s.listen(10)
return ports
rest_port, http_port = get_free_ports(2)
instance = 'http://rest-server:%s' % rest_port
print('Creating another CodaLab instance {} at {} for testing...'.format(name, instance))
try:
start_time = time.time()
subprocess.check_call(
' '.join(
[
'python3',
TestRunner._CODALAB_SERVICE_SCRIPT,
'start',
'--instance-name %s' % name,
'--rest-port %s' % rest_port,
'--version %s' % version,
'--services init ws-server rest-server',
]
),
shell=True,
)
print(
'It took {} seconds to create the temp instance.'.format(time.time() - start_time)
)
except subprocess.CalledProcessError as ex:
print('There was an error while creating the temp instance: %s' % ex.output)
raise
return instance
def __init__(self, args):
self.instance = args.instance
self.tests = args.tests
# Check if a second, temporary instance of CodaLab is needed for testing
self.temp_instance_required = any(
test in self.tests for test in TestRunner._TEMP_INSTANCE_NEEDED_TESTS
)
if self.temp_instance_required:
self.temp_instance_name = 'temp-instance%s' % ''.join(
random.choice(string.digits) for _ in range(8)
)
self.temp_instance = TestRunner._create_temp_instance(
self.temp_instance_name, args.version
)
def run(self):
success = True
try:
non_frontend_tests = list(
filter(lambda test: test != TestRunner._FRONTEND_MODULE, self.tests)
)
if len(non_frontend_tests):
# Run backend tests using test_cli
test_command = 'python3 tests/cli/test_cli.py --instance %s ' % self.instance
if self.temp_instance_required:
test_command += '--second-instance %s ' % self.temp_instance
test_command += ' '.join(non_frontend_tests)
print('Running backend tests with command: %s' % test_command)
subprocess.check_call(TestRunner._docker_exec(test_command), shell=True)
# Run frontend tests
self._run_frontend_tests()
except subprocess.CalledProcessError as ex:
print('Exception while executing tests: %s' % ex.output)
success = False
self._cleanup()
return success
def _run_frontend_tests(self):
if TestRunner._FRONTEND_MODULE not in self.tests:
return
# Execute front end tests here
print('Running frontend tests...')
# Run Selenium UI tests
subprocess.check_call('python3 tests/ui/ui_tester.py --headless', shell=True)
def _cleanup(self):
if not self.temp_instance_required:
return
print('Shutting down the temp instance {}...'.format(self.temp_instance_name))
subprocess.check_call(
' '.join(
[
'python3',
TestRunner._CODALAB_SERVICE_SCRIPT,
'stop',
'--instance-name %s' % self.temp_instance_name,
]
),
shell=True,
)
if __name__ == '__main__':
parser = argparse.ArgumentParser(
description='Runs the specified tests against the specified CodaLab instance (defaults to localhost)'
)
parser.add_argument(
'--version',
type=str,
help='CodaLab version to use for multi-instance tests, defaults to "latest"',
default='latest',
)
parser.add_argument(
'--instance',
type=str,
help='CodaLab instance to run tests against, defaults to "http://rest-server:2900"',
default='http://rest-server:2900',
)
parser.add_argument(
'tests',
metavar='TEST',
nargs='+',
type=str,
choices=list(TestModule.modules.keys()) + ['all', 'default', 'frontend'],
help='Tests to run from: {%(choices)s}',
)
args = parser.parse_args()
test_runner = TestRunner(args)
if not test_runner.run():
sys.exit(1)