#!/usr/bin/env python # Copyright 2017 The Chromium Authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. """Runs a Fuchsia gtest-based test on Swarming, optionally many times, collecting the output of the runs into a directory. Useful for flake checking, and faster than using trybots by avoiding repeated bot_update, compile, archive, etc. and allowing greater parallelism. To use, run in a new shell (it blocks until all Swarming jobs complete): tools/fuchsia/run-swarmed.py -t content_unittests --out-dir=out/fuch The logs of the runs will be stored in results/ (or specify a results directory with --results=some_dir). You can then do something like `grep -L SUCCESS results/*` to find the tests that failed or otherwise process the log files. """ import argparse import multiprocessing import os import shutil import subprocess import sys INTERNAL_ERROR_EXIT_CODE = -1000 def _Spawn(args): """Triggers a swarming job. The arguments passed are: - The index of the job; - The command line arguments object; - The hash of the isolate job used to trigger; - Value of --gtest_filter arg, or empty if none. The return value is passed to a collect-style map() and consists of: - The index of the job; - The json file created by triggering and used to collect results; - The command line arguments object. """ index, args, isolated_hash, gtest_filter = args json_file = os.path.join(args.results, '%d.json' % index) trigger_args = [ 'tools/swarming_client/swarming.py', 'trigger', '-S', 'https://chromium-swarm.appspot.com', '-I', 'https://isolateserver.appspot.com', '-d', 'pool', 'Chrome', '-s', isolated_hash, '--dump-json', json_file, ] if args.target_os == 'fuchsia': trigger_args += [ '-d', 'os', 'Linux', '-d', 'kvm', '1', '-d', 'gpu', 'none', '-d', 'cpu', args.arch, ] elif args.target_os == 'win': trigger_args += [ '-d', 'os', 'Windows' ] trigger_args += [ '--', '--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json'] if gtest_filter: trigger_args.append('--gtest_filter=' + gtest_filter) elif args.target_os == 'fuchsia': filter_file = \ 'testing/buildbot/filters/fuchsia.' + args.test_name + '.filter' if os.path.isfile(filter_file): trigger_args.append('--test-launcher-filter-file=../../' + filter_file) with open(os.devnull, 'w') as nul: subprocess.check_call(trigger_args, stdout=nul) return (index, json_file, args) def _Collect(spawn_result): index, json_file, args = spawn_result p = subprocess.Popen([ 'tools/swarming_client/swarming.py', 'collect', '-S', 'https://chromium-swarm.appspot.com', '--json', json_file, '--task-output-stdout=console'], stdout=subprocess.PIPE, stderr=subprocess.STDOUT) stdout = p.communicate()[0] if p.returncode != 0 and len(stdout) < 2**10 and 'Internal error!' in stdout: exit_code = INTERNAL_ERROR_EXIT_CODE file_suffix = '.INTERNAL_ERROR' else: exit_code = p.returncode file_suffix = '' if exit_code == 0 else '.FAILED' filename = '%d%s.stdout.txt' % (index, file_suffix) with open(os.path.join(args.results, filename), 'w') as f: f.write(stdout) return exit_code def main(): parser = argparse.ArgumentParser() parser.add_argument('-C', '--out-dir', default='out/fuch', help='Build directory.') parser.add_argument('--target-os', default='detect', help='gn target_os') parser.add_argument('--test-name', '-t', required=True, help='Name of test to run.') parser.add_argument('--arch', '-a', default='detect', help='CPU architecture of the test binary.') parser.add_argument('--copies', '-n', type=int, default=1, help='Number of copies to spawn.') parser.add_argument('--results', '-r', default='results', help='Directory in which to store results.') parser.add_argument('--gtest_filter', help='Use the given gtest_filter, rather than the ' 'default filter file, if any.') args = parser.parse_args() if args.target_os == 'detect': with open(os.path.join(args.out_dir, 'args.gn')) as f: gn_args = {} for l in f: l = l.split('#')[0].strip() if not l: continue k, v = map(str.strip, l.split('=', 1)) gn_args[k] = v if 'target_os' in gn_args: args.target_os = gn_args['target_os'].strip('"') else: args.target_os = { 'darwin': 'mac', 'linux2': 'linux', 'win32': 'win' }[ sys.platform] # Determine the CPU architecture of the test binary, if not specified. if args.arch == 'detect' and args.target_os == 'fuchsia': executable_info = subprocess.check_output( ['file', os.path.join(args.out_dir, args.test_name)]) if 'ARM aarch64' in executable_info: args.arch = 'arm64', else: args.arch = 'x86-64' subprocess.check_call( ['tools/mb/mb.py', 'isolate', '//' + args.out_dir, args.test_name]) print 'If you get authentication errors, follow:' print ' https://www.chromium.org/developers/testing/isolated-testing/for-swes#TOC-Login-on-the-services' print 'Uploading to isolate server, this can take a while...' archive_output = subprocess.check_output( ['tools/swarming_client/isolate.py', 'archive', '-I', 'https://isolateserver.appspot.com', '-i', os.path.join(args.out_dir, args.test_name + '.isolate'), '-s', os.path.join(args.out_dir, args.test_name + '.isolated')]) isolated_hash = archive_output.split()[0] if os.path.isdir(args.results): shutil.rmtree(args.results) os.makedirs(args.results) try: print 'Triggering %d tasks...' % args.copies pool = multiprocessing.Pool() spawn_args = map(lambda i: (i, args, isolated_hash, args.gtest_filter), range(args.copies)) spawn_results = pool.imap_unordered(_Spawn, spawn_args) exit_codes = [] collect_results = pool.imap_unordered(_Collect, spawn_results) for result in collect_results: exit_codes.append(result) successes = sum(1 for x in exit_codes if x == 0) errors = sum(1 for x in exit_codes if x == INTERNAL_ERROR_EXIT_CODE) failures = len(exit_codes) - successes - errors clear_to_eol = '\033[K' print('\r[%d/%d] collected: ' '%d successes, %d failures, %d bot errors...%s' % (len(exit_codes), args.copies, successes, failures, errors, clear_to_eol)), sys.stdout.flush() print print 'Results logs collected into', os.path.abspath(args.results) + '.' finally: pool.close() pool.join() return 0 if __name__ == '__main__': sys.exit(main())