| # Copyright 2018 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. |
| |
| """Test runner for running tests using xcodebuild.""" |
| |
| import sys |
| |
| import collections |
| import json |
| import logging |
| import multiprocessing |
| import os |
| import plistlib |
| import re |
| import shutil |
| import subprocess |
| import threading |
| import time |
| |
| import test_runner |
| |
| LOGGER = logging.getLogger(__name__) |
| READLINE_TIMEOUT = 300 |
| |
| |
| class LaunchCommandCreationError(test_runner.TestRunnerError): |
| """One of launch command parameters was not set properly.""" |
| |
| def __init__(self, message): |
| super(LaunchCommandCreationError, self).__init__(message) |
| |
| |
| class LaunchCommandPoolCreationError(test_runner.TestRunnerError): |
| """Failed to create a pool of launch commands.""" |
| |
| def __init__(self, message): |
| super(LaunchCommandPoolCreationError, self).__init__(message) |
| |
| |
| def terminate_process(proc): |
| """Terminates the process. |
| |
| If an error occurs ignore it, just print out a message. |
| |
| Args: |
| proc: A subprocess. |
| """ |
| try: |
| proc.terminate() |
| except OSError as ex: |
| print 'Error while killing a process: %s' % ex |
| |
| |
| def test_status_summary(summary_plist): |
| """Gets status summary from TestSummaries.plist. |
| |
| Args: |
| summary_plist: (str) A path to plist-file. |
| |
| Returns: |
| A dict that contains all passed and failed tests from each egtests.app. |
| e.g. |
| { |
| 'passed': { |
| 'egtests.app': [passed_tests] |
| }, |
| 'failed': { |
| 'egtests.app': [failed_tests] |
| } |
| } |
| """ |
| root_summary = plistlib.readPlist(summary_plist) |
| status_summary = { |
| 'passed': {}, |
| 'failed': {} |
| } |
| for summary in root_summary['TestableSummaries']: |
| failed_egtests = [] |
| passed_egtests = [] |
| if not summary['Tests']: |
| continue |
| for test_suite in summary['Tests'][0]['Subtests'][0]['Subtests']: |
| for test in test_suite['Subtests']: |
| if test['TestStatus'] == 'Success': |
| passed_egtests.append(test['TestIdentifier']) |
| else: |
| failed_egtests.append(test['TestIdentifier']) |
| module = summary['TargetName'].replace('_module', '.app') |
| if failed_egtests: |
| status_summary['failed'][module] = failed_egtests |
| if passed_egtests: |
| status_summary['passed'][module] = passed_egtests |
| return status_summary |
| |
| |
| def collect_test_results(plist_path, output): |
| """Gets test result data from Info.plist and from test output. |
| |
| Args: |
| plist_path: (str) A path to plist-file. |
| output: (str) An output of command. |
| Returns: |
| Test result as a map: |
| { |
| 'passed': { |
| 'egtests.app': [passed_tests] |
| }, |
| 'failed': { |
| 'egtests.app': [failed_tests] |
| }, |
| 'output': ['Command output'] |
| } |
| """ |
| test_results = { |
| 'passed': {}, |
| 'failed': {} |
| } |
| root = plistlib.readPlist(plist_path) |
| |
| for action in root['Actions']: |
| action_result = action['ActionResult'] |
| if ((root['TestsCount'] == 0 and |
| root['TestsFailedCount'] == 0) |
| or 'TestSummaryPath' not in action_result): |
| test_results['failed']['TESTS_DID_NOT_START'] = [] |
| else: |
| summary_plist = os.path.join(os.path.dirname(plist_path), |
| action_result['TestSummaryPath']) |
| summary = test_status_summary(summary_plist) |
| test_results['failed'] = summary['failed'] |
| test_results['passed'] = summary['passed'] |
| test_results['output'] = output |
| return test_results |
| |
| |
| class EgtestsApp(object): |
| """Egtests to run. |
| |
| Stores data about egtests: |
| egtests_app: full path to egtests app. |
| project_path: root project folder. |
| module_name: egtests module name. |
| filtered_tests: List of tests to include or exclude, depending on `invert`. |
| invert: type of filter(True - inclusive, False - exclusive). |
| """ |
| |
| def __init__(self, egtests_app, filtered_tests=None, invert=False, |
| test_args=None, env_vars=None): |
| """Initialize Egtests. |
| |
| Args: |
| egtests_app: (str) full path to egtests app. |
| filtered_tests: (list) Specific tests to run |
| (it can inclusive/exclusive based on invert parameter). |
| E.g. |
| [ 'TestCaseClass1/testMethod1', 'TestCaseClass2/testMethod2'] |
| invert: type of filter(True - inclusive, False - exclusive). |
| test_args: List of strings to pass as arguments to the test when |
| launching. |
| env_vars: List of environment variables to pass to the test itself. |
| |
| Raises: |
| AppNotFoundError: If the given app does not exist |
| """ |
| if not os.path.exists(egtests_app): |
| raise test_runner.AppNotFoundError(egtests_app) |
| self.egtests_path = egtests_app |
| self.project_path = os.path.dirname(self.egtests_path) |
| self.module_name = os.path.splitext(os.path.basename(egtests_app))[0] |
| self.filter = filtered_tests |
| self.invert = invert |
| self.test_args = test_args |
| self.env_vars = env_vars |
| |
| def _xctest_path(self): |
| """Gets xctest-file from egtests/PlugIns folder. |
| |
| Returns: |
| A path for xctest in the format of /PlugIns/file.xctest |
| |
| Raises: |
| PlugInsNotFoundError: If no PlugIns folder found in egtests.app. |
| XCTestPlugInNotFoundError: If no xctest-file found in PlugIns. |
| """ |
| plugins_dir = os.path.join(self.egtests_path, 'PlugIns') |
| if not os.path.exists(plugins_dir): |
| raise test_runner.PlugInsNotFoundError(plugins_dir) |
| plugin_xctest = None |
| for plugin in os.listdir(plugins_dir): |
| if plugin.startswith( |
| self.module_name) and plugin.endswith('.xctest'): |
| plugin_xctest = os.path.join(plugins_dir, plugin) |
| if not plugin_xctest: |
| raise test_runner.XCTestPlugInNotFoundError(plugins_dir) |
| return plugin_xctest.replace(self.egtests_path, '') |
| |
| def xctestrun_node(self): |
| """Fills only required nodes for egtests in xctestrun file. |
| |
| Returns: |
| A node with filled required fields about egtests. |
| """ |
| module = self.module_name + '_module' |
| xctestrun_data = { |
| module: { |
| 'IsAppHostedTestBundle': True, |
| 'TestBundlePath': '__TESTHOST__%s' % self._xctest_path(), |
| 'TestHostPath': '%s' % self.egtests_path, |
| 'TestingEnvironmentVariables': { |
| 'DYLD_INSERT_LIBRARIES': ( |
| '__PLATFORMS__/iPhoneSimulator.platform/Developer/' |
| 'usr/lib/libXCTestBundleInject.dylib'), |
| 'DYLD_LIBRARY_PATH': self.project_path, |
| 'DYLD_FRAMEWORK_PATH': self.project_path + ':', |
| 'XCInjectBundleInto': '__TESTHOST__/%s' % self.module_name |
| } |
| } |
| } |
| if self.filter: |
| if self.invert: |
| xctestrun_data[module].update( |
| {'SkipTestIdentifiers': self.filter}) |
| else: |
| xctestrun_data[module].update( |
| {'OnlyTestIdentifiers': self.filter}) |
| if self.env_vars: |
| xctestrun_data[module].update( |
| {'EnvironmentVariables': self.env_vars}) |
| if self.test_args: |
| xctestrun_data[module].update( |
| {'CommandLineArguments': self.test_args}) |
| return xctestrun_data |
| |
| |
| class LaunchCommand(object): |
| """Stores xcodebuild test launching command.""" |
| |
| def __init__(self, egtests_app, destination, |
| shards, |
| retries, |
| out_dir=os.path.basename(os.getcwd()), |
| env=None): |
| """Initialize launch command. |
| |
| Args: |
| egtests_app: (EgtestsApp) An egtests_app to run. |
| destination: (str) A destination. |
| shards: (int) A number of shards. |
| retries: (int) A number of retries. |
| out_dir: (str) A folder in which xcodebuild will generate test output. |
| By default it is a current directory. |
| env: (dict) Environment variables. |
| |
| Raises: |
| LaunchCommandCreationError: if one of parameters was not set properly. |
| """ |
| if not isinstance(egtests_app, EgtestsApp): |
| raise test_runner.AppNotFoundError( |
| 'Parameter `egtests_app` is not EgtestsApp: %s' % egtests_app) |
| self.egtests_app = egtests_app |
| self.destination = destination |
| self.shards = shards |
| self.retries = retries |
| self.out_dir = out_dir |
| self.logs = collections.OrderedDict() |
| self.test_results = collections.OrderedDict() |
| self.env = env |
| |
| def _make_cmd_list_for_failed_tests(self, failed_results, out_dir, |
| test_args=None, env_vars=None): |
| """Makes cmd list based on failure results. |
| |
| Args: |
| failed_results: Map of failed tests, where key is name of egtests_app and |
| value is a list of failed_test_case/test_methods: |
| { |
| 'egtests_app_name': [failed_test_case/test_methods] |
| } |
| out_dir: (str) An output path. |
| test_args: List of strings to pass as arguments to the test when |
| launching. |
| env_vars: List of environment variables to pass to the test itself. |
| |
| Returns: |
| List of Launch commands to re-run failed tests. |
| Every destination will run on separate clone of a stimulator. |
| """ |
| eg_app = EgtestsApp( |
| egtests_app=self.egtests_app.egtests_path, |
| filtered_tests=[test.replace(' ', '/') for test in |
| failed_results[os.path.basename( |
| self.egtests_app.egtests_path)]], |
| test_args=test_args, |
| env_vars=env_vars) |
| # Regenerates xctest run and gets a command. |
| return self.command(eg_app, out_dir, self.destination, shards=1) |
| |
| def _copy_screenshots(self, info_plist_path, output_folder): |
| """Copy screenshots of failed tests to output folder. |
| |
| Args: |
| info_plist_path: (str) A full path to Info.plist |
| output_folder: (str) A full path to folder where |
| """ |
| plist = plistlib.readPlist(info_plist_path) |
| if 'TestFailureSummaries' not in plist or not plist['TestFailureSummaries']: |
| print 'No failures in %s' % info_plist_path |
| return |
| |
| screenshot_regex = re.compile(r'Screenshots:\s\{(\n.*)+?\n}') |
| for failure_summary in plist['TestFailureSummaries']: |
| screenshots = screenshot_regex.search(failure_summary['Message']) |
| test_case_folder = os.path.join( |
| output_folder, |
| 'failures', |
| failure_summary['TestCase'].replace('[', '').replace(']', '').replace( |
| ' ', '_').replace('-', '')) |
| if not os.path.exists(test_case_folder): |
| os.makedirs(test_case_folder) |
| if screenshots: |
| print 'Screenshots for failure "%s" in "%s"' % ( |
| failure_summary['TestCase'], test_case_folder) |
| d = json.loads(screenshots.group().replace('Screenshots:', '').strip()) |
| for f in d.values(): |
| if not os.path.exists(f): |
| print 'File %s does not exist!' % f |
| continue |
| screenshot = os.path.join(test_case_folder, os.path.basename(f)) |
| print screenshot |
| shutil.copyfile(f, screenshot) |
| |
| def summary_log(self): |
| """Calculates test summary - how many passed, failed and error tests. |
| |
| Returns: |
| Dictionary with number of passed and failed tests. |
| Failed tests will be calculated from the last test attempt. |
| Passed tests calculated for each test attempt. |
| """ |
| test_statuses = ['passed', 'failed'] |
| for status in test_statuses: |
| self.logs[status] = 0 |
| |
| for index, test_attempt_results in enumerate(self.test_results['attempts']): |
| for test_status in test_statuses: |
| if test_status not in test_attempt_results: |
| continue |
| results = test_attempt_results[test_status] |
| for _, destinations_egtests in results.iteritems(): |
| if test_status == 'passed' or ( |
| # Number of failed tests is taken only from last run. |
| test_status == 'failed' and index == len( |
| self.test_results['attempts']) - 1): |
| self.logs[test_status] += len(destinations_egtests) |
| |
| def launch_attempt(self, cmd, out_dir): |
| """Launch a process and do logging simultaneously. |
| |
| Args: |
| cmd: (list[str]) A command to run. |
| out_dir: (str) Output directory given to the command. Used in tests only. |
| |
| Returns: |
| A tuple (cmd, returncode, output) where: |
| - returncode: return code of command run. |
| - output: command output as list of strings. |
| """ |
| print 'Launching %s with env %s' % (cmd, self.env) |
| output = [] |
| proc = subprocess.Popen( |
| cmd, |
| env=self.env, |
| stdout=subprocess.PIPE, |
| stderr=subprocess.STDOUT, |
| ) |
| |
| while True: |
| # It seems that subprocess.stdout.readline() is stuck from time to time |
| # and tests fail because of TIMEOUT. |
| # Try to fix the issue by adding timer-thread for 5 mins |
| # that will kill `frozen` running process if no new line is read |
| # and will finish test attempt. |
| # If new line appears in 5 mins, just cancel timer. |
| timer = threading.Timer(READLINE_TIMEOUT, terminate_process, [proc]) |
| timer.start() |
| line = proc.stdout.readline() |
| timer.cancel() |
| if not line: |
| break |
| line = line.rstrip() |
| print line |
| output.append(line) |
| sys.stdout.flush() |
| |
| proc.wait() |
| print 'Command %s finished with %d' % (cmd, proc.returncode) |
| return proc.returncode, output |
| |
| def launch(self): |
| """Launches tests using xcodebuild.""" |
| initial_command = [] |
| cmd_list = [] |
| self.test_results['attempts'] = [] |
| |
| # total number of attempts is self.retries+1 |
| for attempt in range(self.retries + 1): |
| outdir_attempt = os.path.join(self.out_dir, 'attempt_%d' % attempt) |
| # Create a command for the 1st run or if tests did not start, |
| # re-run the same command but with different output folder. |
| # (http://crbug.com/916620) If tests did not start, repeat the command. |
| if (not self.test_results['attempts'] or 'TESTS_DID_NOT_START' |
| in self.test_results['attempts'][-1]['failed']): |
| cmd_list = self.command(self.egtests_app, |
| outdir_attempt, |
| self.destination, |
| self.shards) |
| if attempt == 0: |
| initial_command = list(cmd_list) |
| # Re-init the command based on list of failed tests. |
| else: |
| cmd_list = self._make_cmd_list_for_failed_tests( |
| self.test_results['attempts'][-1]['failed'], |
| outdir_attempt, |
| test_args=self.egtests_app.test_args, |
| env_vars=self.egtests_app.env_vars) |
| |
| # TODO(crbug.com/914878): add heartbeat logging to xcodebuild_runner. |
| print 'Start test attempt #%d for command [%s]' % ( |
| attempt, ' '.join(cmd_list)) |
| _, output = self.launch_attempt(cmd_list, outdir_attempt) |
| self.test_results['attempts'].append( |
| collect_test_results(os.path.join(outdir_attempt, 'Info.plist'), |
| output)) |
| if self.retries == attempt or not self.test_results[ |
| 'attempts'][-1]['failed']: |
| break |
| self._copy_screenshots(os.path.join(outdir_attempt, 'Info.plist'), |
| outdir_attempt) |
| |
| self.test_results['end_run'] = int(time.time()) |
| self.summary_log() |
| |
| return { |
| 'cmd': initial_command, |
| 'test_results': self.test_results, |
| 'logs': self.logs |
| } |
| |
| def fill_xctest_run(self, egtests_app): |
| """Fills xctestrun file by egtests. |
| |
| Args: |
| egtests_app: (EgtestsApp) An Egetsts_app to run. |
| |
| Returns: |
| A path to xctestrun file. |
| |
| Raises: |
| AppNotFoundError if egtests is empty. |
| """ |
| if not egtests_app: |
| raise test_runner.AppNotFoundError('Egtests is not found!') |
| xctestrun = os.path.join( |
| os.path.abspath(os.path.join(self.out_dir, os.pardir)), |
| 'run_%d.xctestrun' % int(time.time())) |
| if not os.path.exists(xctestrun): |
| with open(xctestrun, 'w'): |
| pass |
| # Creates a dict with data about egtests to run - fill all required fields: |
| # egtests_module, egtest_app_path, egtests_xctest_path and |
| # filtered tests if filter is specified. |
| # Write data in temp xctest run file. |
| plistlib.writePlist(egtests_app.xctestrun_node(), xctestrun) |
| return xctestrun |
| |
| def command(self, egtests_app, out_dir, destination, shards): |
| """Returns the command that launches tests using xcodebuild. |
| |
| Format of command: |
| xcodebuild test-without-building -xctestrun file.xctestrun \ |
| -parallel-testing-enabled YES -parallel-testing-worker-count %d% \ |
| [-destination "destination"] -resultBundlePath %output_path% |
| |
| Args: |
| egtests_app: (EgtestsApp) An egetsts_app to run. |
| out_dir: (str) An output directory. |
| destination: (str) A destination of running simulator. |
| shards: (int) A number of shards. |
| |
| Returns: |
| A list of strings forming the command to launch the test. |
| """ |
| cmd = ['xcodebuild', 'test-without-building', |
| '-xctestrun', self.fill_xctest_run(egtests_app), |
| '-destination', destination, |
| '-resultBundlePath', out_dir] |
| if self.shards > 1: |
| cmd += ['-parallel-testing-enabled', 'YES', |
| '-parallel-testing-worker-count', str(shards)] |
| return cmd |
| |
| |
| class SimulatorParallelTestRunner(test_runner.SimulatorTestRunner): |
| """Class for running simulator tests using xCode.""" |
| |
| def __init__( |
| self, |
| app_path, |
| iossim_path, |
| xcode_build_version, |
| version, |
| platform, |
| out_dir, |
| mac_toolchain=None, |
| retries=1, |
| shards=1, |
| xcode_path=None, |
| test_cases=None, |
| test_args=None, |
| env_vars=None |
| ): |
| """Initializes a new instance of SimulatorParallelTestRunner class. |
| |
| Args: |
| app_path: (str) A path to egtests_app. |
| iossim_path: Path to the compiled iossim binary to use. |
| Not used, but is required by the base class. |
| xcode_build_version: (str) Xcode build version for running tests. |
| version: (str) iOS version to run simulator on. |
| platform: (str) Name of device. |
| out_dir: (str) A directory to emit test data into. |
| mac_toolchain: (str) A command to run `mac_toolchain` tool. |
| retries: (int) A number to retry test run, will re-run only failed tests. |
| shards: (int) A number of shards. Default is 1. |
| xcode_path: (str) A path to Xcode.app folder. |
| test_cases: (list) List of tests to be included in the test run. |
| None or [] to include all tests. |
| test_args: List of strings to pass as arguments to the test when |
| launching. |
| env_vars: List of environment variables to pass to the test itself. |
| |
| Raises: |
| AppNotFoundError: If the given app does not exist. |
| PlugInsNotFoundError: If the PlugIns directory does not exist for XCTests. |
| XcodeVersionNotFoundError: If the given Xcode version does not exist. |
| XCTestPlugInNotFoundError: If the .xctest PlugIn does not exist. |
| """ |
| super(SimulatorParallelTestRunner, self).__init__( |
| app_path, |
| iossim_path, |
| platform, |
| version, |
| xcode_build_version, |
| out_dir, |
| env_vars=env_vars, |
| mac_toolchain=mac_toolchain, |
| retries=retries or 1, |
| shards=shards or 1, |
| test_args=test_args, |
| test_cases=test_cases, |
| xcode_path=xcode_path, |
| xctest=False |
| ) |
| self.erase_all_simulators() |
| self._init_sharding_data() |
| self.logs = collections.OrderedDict() |
| self.test_results = collections.OrderedDict() |
| self.test_results['start_run'] = int(time.time()) |
| self.test_results['end_run'] = None |
| |
| def _init_sharding_data(self): |
| """Initialize sharding data. |
| |
| For common case info about sharding tests will be a list of dictionaries: |
| [ |
| { |
| 'app':paths to egtests_app, |
| 'destination': 'platform=iOS Simulator,OS=<os>,Name=<simulator>' |
| 'shards': N |
| } |
| ] |
| """ |
| self.sharding_data = [ |
| { |
| 'app': self.app_path, |
| # Destination is required to run tests via xcodebuild and it |
| # looks like |
| # 'platform=iOS Simulator,OS=<os_version>,Name=<simulator-name>' |
| # By default all tests runs on 'platform=iOS Simulator'. |
| 'destination': 'platform=iOS Simulator,OS=%s,name=%s' % ( |
| self.version, self.platform), |
| 'shards': self.shards, |
| 'test_cases': self.test_cases |
| } |
| ] |
| |
| def get_launch_env(self): |
| """Returns a dict of environment variables to use to launch the test app. |
| |
| Returns: |
| A dict of environment variables. |
| """ |
| env = super(test_runner.SimulatorTestRunner, self).get_launch_env() |
| env['NSUnbufferedIO'] = 'YES' |
| return env |
| |
| def launch(self): |
| """Launches tests using xcodebuild.""" |
| destinaion_folder = lambda dest: dest.replace( |
| 'platform=iOS Simulator,', '').replace(',name=', ' ').replace('OS=', '') |
| launch_commands = [] |
| for params in self.sharding_data: |
| launch_commands.append(LaunchCommand( |
| EgtestsApp(params['app'], filtered_tests=params['test_cases'], |
| env_vars=self.env_vars, test_args=self.test_args), |
| params['destination'], |
| shards=params['shards'], |
| retries=self.retries, |
| out_dir=os.path.join(self.out_dir, |
| destinaion_folder(params['destination'])), |
| env=self.get_launch_env())) |
| |
| pool = multiprocessing.pool.ThreadPool(len(launch_commands)) |
| self.test_results['commands'] = [] |
| for result in pool.imap_unordered(LaunchCommand.launch, launch_commands): |
| self.logs[' '.join(result['cmd'])] = result['test_results'] |
| self.test_results['commands'].append( |
| {'cmd': ' '.join(result['cmd']), 'logs': result['logs']}) |
| self.test_results['end_run'] = int(time.time()) |
| LOGGER.debug('Test ended.') |
| # Test is failed if there are failures for the last run. |
| return not self.test_results['commands'][-1]['logs']['failed'] |
| |
| def erase_all_simulators(self): |
| """Erases all simulator devices. |
| |
| Fix for DVTCoreSimulatorAdditionsErrorDomain error. |
| """ |
| print 'Erasing all simulators.' |
| subprocess.call(['xcrun', 'simctl', 'erase', 'all']) |
