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How to use browser_channel method in Playwright Python

Best Python code snippet using playwright-python

run.py

Source:run.py

1import argparse2import os3import platform4import sys5from distutils.spawn import find_executable6from six.moves import input7wpt_root = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir, os.pardir))8sys.path.insert(0, os.path.abspath(os.path.join(wpt_root, "tools")))9from . import browser, install, testfiles, utils, virtualenv10from ..serve import serve11logger = None12class WptrunError(Exception):13    pass14class WptrunnerHelpAction(argparse.Action):15    def __init__(self,16                 option_strings,17                 dest=argparse.SUPPRESS,18                 default=argparse.SUPPRESS,19                 help=None):20        super(WptrunnerHelpAction, self).__init__(21            option_strings=option_strings,22            dest=dest,23            default=default,24            nargs=0,25            help=help)26    def __call__(self, parser, namespace, values, option_string=None):27        from wptrunner import wptcommandline28        wptparser = wptcommandline.create_parser()29        wptparser.usage = parser.usage30        wptparser.print_help()31        parser.exit()32def create_parser():33    from wptrunner import wptcommandline34    parser = argparse.ArgumentParser(add_help=False)35    parser.add_argument("product", action="store",36                        help="Browser to run tests in")37    parser.add_argument("--affected", action="store", default=None,38                        help="Run affected tests since revish")39    parser.add_argument("--yes", "-y", dest="prompt", action="store_false", default=True,40                        help="Don't prompt before installing components")41    parser.add_argument("--install-browser", action="store_true",42                        help="Install the browser from the release channel specified by --channel "43                        "(or the nightly channel by default).")44    parser.add_argument("--channel", action="store",45                        choices=install.channel_by_name.keys(),46                        default=None, help='Name of browser release channel. '47                        '"stable" and "release" are synonyms for the latest browser stable '48                        'release, "nightly", "dev", "experimental", and "preview" are all '49                        'synonyms for the latest available development release. (For WebDriver '50                        'installs, we attempt to select an appropriate, compatible version for '51                        'the latest browser release on the selected channel.) '52                        'This flag overrides --browser-channel.')53    parser._add_container_actions(wptcommandline.create_parser())54    return parser55def exit(msg=None):56    if msg:57        logger.critical(msg)58        sys.exit(1)59    else:60        sys.exit(0)61def args_general(kwargs):62    kwargs.set_if_none("tests_root", wpt_root)63    kwargs.set_if_none("metadata_root", wpt_root)64    kwargs.set_if_none("manifest_update", True)65    kwargs.set_if_none("manifest_download", True)66    if kwargs["ssl_type"] in (None, "pregenerated"):67        cert_root = os.path.join(wpt_root, "tools", "certs")68        if kwargs["ca_cert_path"] is None:69            kwargs["ca_cert_path"] = os.path.join(cert_root, "cacert.pem")70        if kwargs["host_key_path"] is None:71            kwargs["host_key_path"] = os.path.join(cert_root, "web-platform.test.key")72        if kwargs["host_cert_path"] is None:73            kwargs["host_cert_path"] = os.path.join(cert_root, "web-platform.test.pem")74    elif kwargs["ssl_type"] == "openssl":75        if not find_executable(kwargs["openssl_binary"]):76            if os.uname()[0] == "Windows":77                raise WptrunError("""OpenSSL binary not found. If you need HTTPS tests, install OpenSSL from78https://slproweb.com/products/Win32OpenSSL.html79Ensuring that libraries are added to /bin and add the resulting bin directory to80your PATH.81Otherwise run with --ssl-type=none""")82            else:83                raise WptrunError("""OpenSSL not found. If you don't need HTTPS support run with --ssl-type=none,84otherwise install OpenSSL and ensure that it's on your $PATH.""")85def check_environ(product):86    if product not in ("android_weblayer", "android_webview", "chrome", "chrome_android", "firefox", "firefox_android", "servo"):87        config_builder = serve.build_config(os.path.join(wpt_root, "config.json"))88        # Override the ports to avoid looking for free ports89        config_builder.ssl = {"type": "none"}90        config_builder.ports = {"http": [8000]}91        is_windows = platform.uname()[0] == "Windows"92        with config_builder as config:93            expected_hosts = set(config.domains_set)94            if is_windows:95                expected_hosts.update(config.not_domains_set)96        missing_hosts = set(expected_hosts)97        if is_windows:98            hosts_path = r"%s\System32\drivers\etc\hosts" % os.environ.get("SystemRoot", r"C:\Windows")99        else:100            hosts_path = "/etc/hosts"101        if os.path.abspath(os.curdir) == wpt_root:102            wpt_path = "wpt"103        else:104            wpt_path = os.path.join(wpt_root, "wpt")105        with open(hosts_path, "r") as f:106            for line in f:107                line = line.split("#", 1)[0].strip()108                parts = line.split()109                hosts = parts[1:]110                for host in hosts:111                    missing_hosts.discard(host)112            if missing_hosts:113                if is_windows:114                    message = """Missing hosts file configuration. Run115python %s make-hosts-file | Out-File %s -Encoding ascii -Append116in PowerShell with Administrator privileges.""" % (wpt_path, hosts_path)117                else:118                    message = """Missing hosts file configuration. Run119%s make-hosts-file | sudo tee -a %s""" % ("./wpt" if wpt_path == "wpt" else wpt_path,120                                          hosts_path)121                raise WptrunError(message)122class BrowserSetup(object):123    name = None124    browser_cls = None125    def __init__(self, venv, prompt=True, sub_product=None):126        self.browser = self.browser_cls(logger)127        self.venv = venv128        self.prompt = prompt129        self.sub_product = sub_product130    def prompt_install(self, component):131        if not self.prompt:132            return True133        while True:134            resp = input("Download and install %s [Y/n]? " % component).strip().lower()135            if not resp or resp == "y":136                return True137            elif resp == "n":138                return False139    def install(self, channel=None):140        if self.prompt_install(self.name):141            return self.browser.install(self.venv.path, channel)142    def install_requirements(self):143        if not self.venv.skip_virtualenv_setup:144            self.venv.install_requirements(os.path.join(wpt_root, "tools", "wptrunner", self.browser.requirements))145    def setup(self, kwargs):146        self.setup_kwargs(kwargs)147class Firefox(BrowserSetup):148    name = "firefox"149    browser_cls = browser.Firefox150    def setup_kwargs(self, kwargs):151        if kwargs["binary"] is None:152            if kwargs["browser_channel"] is None:153                kwargs["browser_channel"] = "nightly"154                logger.info("No browser channel specified. Running nightly instead.")155            binary = self.browser.find_binary(self.venv.path,156                                              kwargs["browser_channel"])157            if binary is None:158                raise WptrunError("""Firefox binary not found on $PATH.159Install Firefox or use --binary to set the binary path""")160            kwargs["binary"] = binary161        if kwargs["certutil_binary"] is None and kwargs["ssl_type"] != "none":162            certutil = self.browser.find_certutil()163            if certutil is None:164                # Can't download this for now because it's missing the libnss3 library165                logger.info("""Can't find certutil, certificates will not be checked.166Consider installing certutil via your OS package manager or directly.""")167            else:168                logger.info("Using certutil %s" % certutil)169            kwargs["certutil_binary"] = certutil170        if kwargs["webdriver_binary"] is None and "wdspec" in kwargs["test_types"]:171            webdriver_binary = self.browser.find_webdriver()172            if webdriver_binary is None:173                install = self.prompt_install("geckodriver")174                if install:175                    logger.info("Downloading geckodriver")176                    webdriver_binary = self.browser.install_webdriver(dest=self.venv.bin_path)177            else:178                logger.info("Using webdriver binary %s" % webdriver_binary)179            if webdriver_binary:180                kwargs["webdriver_binary"] = webdriver_binary181            else:182                logger.info("Unable to find or install geckodriver, skipping wdspec tests")183                kwargs["test_types"].remove("wdspec")184        if kwargs["prefs_root"] is None:185            prefs_root = self.browser.install_prefs(kwargs["binary"],186                                                    self.venv.path,187                                                    channel=kwargs["browser_channel"])188            kwargs["prefs_root"] = prefs_root189        if kwargs["headless"] is None:190            kwargs["headless"] = True191            logger.info("Running in headless mode, pass --no-headless to disable")192        # Turn off Firefox WebRTC ICE logging on WPT (turned on by mozrunner)193        os.unsetenv('R_LOG_LEVEL')194        os.unsetenv('R_LOG_DESTINATION')195        os.unsetenv('R_LOG_VERBOSE')196        # Allow WebRTC tests to call getUserMedia.197        kwargs["extra_prefs"].append("media.navigator.streams.fake=true")198class FirefoxAndroid(BrowserSetup):199    name = "firefox_android"200    browser_cls = browser.FirefoxAndroid201    def install(self, channel):202        # The install needs to happen in setup so that we have access to all the kwargs203        self._install_browser = True204        return None205    def setup_kwargs(self, kwargs):206        from . import android207        import mozdevice208        # We don't support multiple channels for android yet209        if kwargs["browser_channel"] is None:210            kwargs["browser_channel"] = "nightly"211        if kwargs["prefs_root"] is None:212            prefs_root = self.browser.install_prefs(kwargs["binary"],213                                                    self.venv.path,214                                                    channel=kwargs["browser_channel"])215            kwargs["prefs_root"] = prefs_root216        if kwargs["package_name"] is None:217            kwargs["package_name"] = "org.mozilla.geckoview.test"218        app = kwargs["package_name"]219        if kwargs["device_serial"] is None:220            kwargs["device_serial"] = "emulator-5554"221        # We're running on an emulator so ensure that's set up222        if kwargs["device_serial"].startswith("emulator-"):223            emulator = android.install(logger, reinstall=False, no_prompt=not self.prompt)224            android.start(logger, emulator=emulator, reinstall=False)225        install = False226        if hasattr(self, "_install_browser"):227            if self.prompt_install("geckoview-test"):228                install = True229                apk_path = self.browser.install(self.venv.path,230                                                channel=kwargs["browser_channel"])231        if "ADB_PATH" not in os.environ:232            adb_path = os.path.join(android.get_sdk_path(None),233                                    "platform-tools",234                                    "adb")235            os.environ["ADB_PATH"] = adb_path236        adb_path = os.environ["ADB_PATH"]237        device = mozdevice.ADBDevice(adb=adb_path,238                                     device=kwargs["device_serial"])239        if install:240            device.uninstall_app(app)241            device.install_app(apk_path)242        elif not device.is_app_installed(app):243            raise WptrunError("app %s not installed on device %s" %244                              (app, kwargs["device_serial"]))245class Chrome(BrowserSetup):246    name = "chrome"247    browser_cls = browser.Chrome248    def setup_kwargs(self, kwargs):249        browser_channel = kwargs["browser_channel"]250        if kwargs["binary"] is None:251            binary = self.browser.find_binary(channel=browser_channel)252            if binary:253                kwargs["binary"] = binary254            else:255                raise WptrunError("Unable to locate Chrome binary")256        if kwargs["webdriver_binary"] is None:257            webdriver_binary = self.browser.find_webdriver()258            if webdriver_binary is None:259                install = self.prompt_install("chromedriver")260                if install:261                    logger.info("Downloading chromedriver")262                    webdriver_binary = self.browser.install_webdriver(263                        dest=self.venv.bin_path,264                        browser_binary=kwargs["binary"],265                    )266            else:267                logger.info("Using webdriver binary %s" % webdriver_binary)268            if webdriver_binary:269                kwargs["webdriver_binary"] = webdriver_binary270            else:271                raise WptrunError("Unable to locate or install chromedriver binary")272        if browser_channel in ("dev", "canary"):273            logger.info("Automatically turning on experimental features for Chrome Dev/Canary")274            kwargs["binary_args"].append("--enable-experimental-web-platform-features")275            # HACK(Hexcles): work around https://github.com/web-platform-tests/wpt/issues/16448276            kwargs["webdriver_args"].append("--disable-build-check")277        if os.getenv("TASKCLUSTER_ROOT_URL"):278            # We are on Taskcluster, where our Docker container does not have279            # enough capabilities to run Chrome with sandboxing. (gh-20133)280            kwargs["binary_args"].append("--no-sandbox")281class ChromeAndroid(BrowserSetup):282    name = "chrome_android"283    browser_cls = browser.ChromeAndroid284    def setup_kwargs(self, kwargs):285        if kwargs.get("device_serial"):286            self.browser.device_serial = kwargs["device_serial"]287        browser_channel = kwargs["browser_channel"]288        if kwargs["package_name"] is None:289            kwargs["package_name"] = self.browser.find_binary(290                channel=browser_channel)291        if kwargs["webdriver_binary"] is None:292            webdriver_binary = self.browser.find_webdriver()293            if webdriver_binary is None:294                install = self.prompt_install("chromedriver")295                if install:296                    logger.info("Downloading chromedriver")297                    webdriver_binary = self.browser.install_webdriver(298                        dest=self.venv.bin_path,299                        browser_binary=kwargs["package_name"],300                    )301            else:302                logger.info("Using webdriver binary %s" % webdriver_binary)303            if webdriver_binary:304                kwargs["webdriver_binary"] = webdriver_binary305            else:306                raise WptrunError("Unable to locate or install chromedriver binary")307        if browser_channel in ("dev", "canary"):308            logger.info("Automatically turning on experimental features for Chrome Dev/Canary")309            kwargs["binary_args"].append("--enable-experimental-web-platform-features")310            # HACK(Hexcles): work around https://github.com/web-platform-tests/wpt/issues/16448311            kwargs["webdriver_args"].append("--disable-build-check")312class ChromeiOS(BrowserSetup):313    name = "chrome_ios"314    browser_cls = browser.ChromeiOS315    def setup_kwargs(self, kwargs):316        if kwargs["webdriver_binary"] is None:317            raise WptrunError("Unable to locate or install chromedriver binary")318class AndroidWeblayer(BrowserSetup):319    name = "android_weblayer"320    browser_cls = browser.AndroidWeblayer321    def setup_kwargs(self, kwargs):322        if kwargs.get("device_serial"):323            self.browser.device_serial = kwargs["device_serial"]324        if kwargs["webdriver_binary"] is None:325            webdriver_binary = self.browser.find_webdriver()326            if webdriver_binary is None:327                install = self.prompt_install("chromedriver")328                if install:329                    logger.info("Downloading chromedriver")330                    webdriver_binary = self.browser.install_webdriver(dest=self.venv.bin_path)331            else:332                logger.info("Using webdriver binary %s" % webdriver_binary)333            if webdriver_binary:334                kwargs["webdriver_binary"] = webdriver_binary335            else:336                raise WptrunError("Unable to locate or install chromedriver binary")337class AndroidWebview(BrowserSetup):338    name = "android_webview"339    browser_cls = browser.AndroidWebview340    def setup_kwargs(self, kwargs):341        if kwargs.get("device_serial"):342            self.browser.device_serial = kwargs["device_serial"]343        if kwargs["webdriver_binary"] is None:344            webdriver_binary = self.browser.find_webdriver()345            if webdriver_binary is None:346                install = self.prompt_install("chromedriver")347                if install:348                    logger.info("Downloading chromedriver")349                    webdriver_binary = self.browser.install_webdriver(dest=self.venv.bin_path)350            else:351                logger.info("Using webdriver binary %s" % webdriver_binary)352            if webdriver_binary:353                kwargs["webdriver_binary"] = webdriver_binary354            else:355                raise WptrunError("Unable to locate or install chromedriver binary")356class Opera(BrowserSetup):357    name = "opera"358    browser_cls = browser.Opera359    def setup_kwargs(self, kwargs):360        if kwargs["webdriver_binary"] is None:361            webdriver_binary = self.browser.find_webdriver()362            if webdriver_binary is None:363                install = self.prompt_install("operadriver")364                if install:365                    logger.info("Downloading operadriver")366                    webdriver_binary = self.browser.install_webdriver(dest=self.venv.bin_path)367            else:368                logger.info("Using webdriver binary %s" % webdriver_binary)369            if webdriver_binary:370                kwargs["webdriver_binary"] = webdriver_binary371            else:372                raise WptrunError("Unable to locate or install operadriver binary")373class EdgeChromium(BrowserSetup):374    name = "MicrosoftEdge"375    browser_cls = browser.EdgeChromium376    def setup_kwargs(self, kwargs):377        browser_channel = kwargs["browser_channel"]378        if kwargs["binary"] is None:379            binary = self.browser.find_binary(channel=browser_channel)380            if binary:381                kwargs["binary"] = binary382            else:383                raise WptrunError("Unable to locate Edge binary")384        if kwargs["webdriver_binary"] is None:385            webdriver_binary = self.browser.find_webdriver()386            # Install browser if none are found or if it's found in venv path387            if webdriver_binary is None or webdriver_binary in self.venv.bin_path:388                install = self.prompt_install("msedgedriver")389                if install:390                    logger.info("Downloading msedgedriver")391                    webdriver_binary = self.browser.install_webdriver(dest=self.venv.bin_path, channel=browser_channel)392            else:393                logger.info("Using webdriver binary %s" % webdriver_binary)394            if webdriver_binary:395                kwargs["webdriver_binary"] = webdriver_binary396            else:397                raise WptrunError("Unable to locate or install msedgedriver binary")398        if browser_channel in ("dev", "canary"):399            logger.info("Automatically turning on experimental features for Edge Dev/Canary")400            kwargs["binary_args"].append("--enable-experimental-web-platform-features")401class Edge(BrowserSetup):402    name = "edge"403    browser_cls = browser.Edge404    def install(self, channel=None):405        raise NotImplementedError406    def setup_kwargs(self, kwargs):407        if kwargs["webdriver_binary"] is None:408            webdriver_binary = self.browser.find_webdriver()409            if webdriver_binary is None:410                raise WptrunError("""Unable to find WebDriver and we aren't yet clever enough to work out which411version to download. Please go to the following URL and install the correct412version for your Edge/Windows release somewhere on the %PATH%:413https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/414""")415            kwargs["webdriver_binary"] = webdriver_binary416class EdgeWebDriver(Edge):417    name = "edge_webdriver"418    browser_cls = browser.EdgeWebDriver419class InternetExplorer(BrowserSetup):420    name = "ie"421    browser_cls = browser.InternetExplorer422    def install(self, channel=None):423        raise NotImplementedError424    def setup_kwargs(self, kwargs):425        if kwargs["webdriver_binary"] is None:426            webdriver_binary = self.browser.find_webdriver()427            if webdriver_binary is None:428                raise WptrunError("""Unable to find WebDriver and we aren't yet clever enough to work out which429version to download. Please go to the following URL and install the driver for Internet Explorer430somewhere on the %PATH%:431https://selenium-release.storage.googleapis.com/index.html432""")433            kwargs["webdriver_binary"] = webdriver_binary434class Safari(BrowserSetup):435    name = "safari"436    browser_cls = browser.Safari437    def install(self, channel=None):438        raise NotImplementedError439    def setup_kwargs(self, kwargs):440        if kwargs["webdriver_binary"] is None:441            webdriver_binary = self.browser.find_webdriver(channel=kwargs["browser_channel"])442            if webdriver_binary is None:443                raise WptrunError("Unable to locate safaridriver binary")444            kwargs["webdriver_binary"] = webdriver_binary445class Sauce(BrowserSetup):446    name = "sauce"447    browser_cls = browser.Sauce448    def install(self, channel=None):449        raise NotImplementedError450    def setup_kwargs(self, kwargs):451        kwargs.set_if_none("sauce_browser", self.sub_product[0])452        kwargs.set_if_none("sauce_version", self.sub_product[1])453        kwargs["test_types"] = ["testharness", "reftest"]454class Servo(BrowserSetup):455    name = "servo"456    browser_cls = browser.Servo457    def install(self, channel=None):458        if self.prompt_install(self.name):459            return self.browser.install(self.venv.path)460    def setup_kwargs(self, kwargs):461        if kwargs["binary"] is None:462            binary = self.browser.find_binary(self.venv.path, None)463            if binary is None:464                raise WptrunError("Unable to find servo binary in PATH")465            kwargs["binary"] = binary466class ServoWebDriver(Servo):467    name = "servodriver"468    browser_cls = browser.ServoWebDriver469class WebKit(BrowserSetup):470    name = "webkit"471    browser_cls = browser.WebKit472    def install(self, channel=None):473        raise NotImplementedError474    def setup_kwargs(self, kwargs):475        pass476class WebKitGTKMiniBrowser(BrowserSetup):477    name = "webkitgtk_minibrowser"478    browser_cls = browser.WebKitGTKMiniBrowser479    def install(self, channel=None):480        raise NotImplementedError481    def setup_kwargs(self, kwargs):482        if kwargs["binary"] is None:483            binary = self.browser.find_binary(channel=kwargs["browser_channel"])484            if binary is None:485                raise WptrunError("Unable to find MiniBrowser binary")486            kwargs["binary"] = binary487        if kwargs["webdriver_binary"] is None:488            webdriver_binary = self.browser.find_webdriver(channel=kwargs["browser_channel"])489            if webdriver_binary is None:490                raise WptrunError("Unable to find WebKitWebDriver in PATH")491            kwargs["webdriver_binary"] = webdriver_binary492class Epiphany(BrowserSetup):493    name = "epiphany"494    browser_cls = browser.Epiphany495    def install(self, channel=None):496        raise NotImplementedError497    def setup_kwargs(self, kwargs):498        if kwargs["binary"] is None:499            binary = self.browser.find_binary()500            if binary is None:501                raise WptrunError("Unable to find epiphany in PATH")502            kwargs["binary"] = binary503        if kwargs["webdriver_binary"] is None:504            webdriver_binary = self.browser.find_webdriver()505            if webdriver_binary is None:506                raise WptrunError("Unable to find WebKitWebDriver in PATH")507            kwargs["webdriver_binary"] = webdriver_binary508product_setup = {509    "android_weblayer": AndroidWeblayer,510    "android_webview": AndroidWebview,511    "firefox": Firefox,512    "firefox_android": FirefoxAndroid,513    "chrome": Chrome,514    "chrome_android": ChromeAndroid,515    "chrome_ios": ChromeiOS,516    "edgechromium": EdgeChromium,517    "edge": Edge,518    "edge_webdriver": EdgeWebDriver,519    "ie": InternetExplorer,520    "safari": Safari,521    "servo": Servo,522    "servodriver": ServoWebDriver,523    "sauce": Sauce,524    "opera": Opera,525    "webkit": WebKit,526    "webkitgtk_minibrowser": WebKitGTKMiniBrowser,527    "epiphany": Epiphany,528}529def setup_logging(kwargs, default_config=None, formatter_defaults=None):530    import mozlog531    from wptrunner import wptrunner532    global logger533    # Use the grouped formatter by default where mozlog 3.9+ is installed534    if default_config is None:535        if hasattr(mozlog.formatters, "GroupingFormatter"):536            default_formatter = "grouped"537        else:538            default_formatter = "mach"539        default_config = {default_formatter: sys.stdout}540    wptrunner.setup_logging(kwargs, default_config, formatter_defaults=formatter_defaults)541    logger = wptrunner.logger542    return logger543def setup_wptrunner(venv, prompt=True, install_browser=False, **kwargs):544    from wptrunner import wptcommandline545    from six import iteritems546    kwargs = utils.Kwargs(iteritems(kwargs))547    product_parts = kwargs["product"].split(":")548    kwargs["product"] = product_parts[0].replace("-", "_")549    sub_product = product_parts[1:]550    check_environ(kwargs["product"])551    args_general(kwargs)552    if kwargs["product"] not in product_setup:553        raise WptrunError("Unsupported product %s" % kwargs["product"])554    setup_cls = product_setup[kwargs["product"]](venv, prompt, sub_product)555    setup_cls.install_requirements()556    affected_revish = kwargs.pop("affected", None)557    if affected_revish is not None:558        # TODO: Consolidate with `./wpt tests-affected --ignore-rules`:559        # https://github.com/web-platform-tests/wpt/issues/14560560        files_changed, _ = testfiles.files_changed(561            affected_revish,562            ignore_rules=["resources/testharness*"],563            include_uncommitted=True, include_new=True)564        # TODO: Perhaps use wptrunner.testloader.ManifestLoader here565        # and remove the manifest-related code from testfiles.566        # https://github.com/web-platform-tests/wpt/issues/14421567        tests_changed, tests_affected = testfiles.affected_testfiles(568            files_changed, manifest_path=kwargs.get("manifest_path"), manifest_update=kwargs["manifest_update"])569        test_list = tests_changed | tests_affected570        logger.info("Identified %s affected tests" % len(test_list))571        test_list = [os.path.relpath(item, wpt_root) for item in test_list]572        kwargs["test_list"] += test_list573        kwargs["default_exclude"] = True574    if install_browser and not kwargs["channel"]:575        logger.info("--install-browser is given but --channel is not set, default to nightly channel")576        kwargs["channel"] = "nightly"577    if kwargs["channel"]:578        channel = install.get_channel(kwargs["product"], kwargs["channel"])579        if channel is not None:580            if channel != kwargs["channel"]:581                logger.info("Interpreting channel '%s' as '%s'" % (kwargs["channel"],582                                                                   channel))583            kwargs["browser_channel"] = channel584        else:585            logger.info("Valid channels for %s not known; using argument unmodified" % kwargs["product"])586            kwargs["browser_channel"] = kwargs["channel"]587        del kwargs["channel"]588    if install_browser:589        logger.info("Installing browser")590        kwargs["binary"] = setup_cls.install(channel=channel)591    setup_cls.setup(kwargs)592    wptcommandline.check_args(kwargs)593    wptrunner_path = os.path.join(wpt_root, "tools", "wptrunner")594    if not venv.skip_virtualenv_setup:595        venv.install_requirements(os.path.join(wptrunner_path, "requirements.txt"))596    # Only update browser_version if it was not given as a command line597    # argument, so that it can be overridden on the command line.598    if not kwargs["browser_version"]:599        kwargs["browser_version"] = setup_cls.browser.version(600            binary=kwargs.get("binary") or kwargs.get("package_name"),601            webdriver_binary=kwargs.get("webdriver_binary"),602        )603    return kwargs604def run(venv, **kwargs):605    setup_logging(kwargs)606    # Remove arguments that aren't passed to wptrunner607    prompt = kwargs.pop("prompt", True)608    install_browser = kwargs.pop("install_browser", False)609    kwargs = setup_wptrunner(venv,610                             prompt=prompt,611                             install_browser=install_browser,612                             **kwargs)613    rv = run_single(venv, **kwargs) > 0614    return rv615def run_single(venv, **kwargs):616    from wptrunner import wptrunner617    return wptrunner.start(**kwargs)618def main():619    try:620        parser = create_parser()621        args = parser.parse_args()622        venv = virtualenv.Virtualenv(os.path.join(wpt_root, "_venv_%s") % platform.uname()[0])623        venv.start()624        venv.install_requirements(os.path.join(wpt_root, "tools", "wptrunner", "requirements.txt"))625        venv.install("requests")626        return run(venv, vars(args))627    except WptrunError as e:628        exit(e.message)629if __name__ == "__main__":630    import pdb631    from tools import localpaths  # noqa: F401632    try:633        main()634    except Exception:...

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.