How to use _on_service_worker method in Playwright Python

Best Python code snippet using playwright-python

_browser_context.py

Source:_browser_context.py

...98            lambda params: self._on_background_page(from_channel(params["page"])),99        )100        self._channel.on(101            "serviceWorker",102            lambda params: self._on_service_worker(from_channel(params["worker"])),103        )104        self._channel.on(105            "request",106            lambda params: self._on_request(107                from_channel(params["request"]),108                from_nullable_channel(params.get("page")),109            ),110        )111        self._channel.on(112            "response",113            lambda params: self._on_response(114                from_channel(params["response"]),115                from_nullable_channel(params.get("page")),116            ),117        )118        self._channel.on(119            "requestFailed",120            lambda params: self._on_request_failed(121                from_channel(params["request"]),122                params["responseEndTiming"],123                params.get("failureText"),124                from_nullable_channel(params.get("page")),125            ),126        )127        self._channel.on(128            "requestFinished",129            lambda params: self._on_request_finished(130                from_channel(params["request"]),131                from_nullable_channel(params.get("response")),132                params["responseEndTiming"],133                from_nullable_channel(params.get("page")),134            ),135        )136        self._closed_future: asyncio.Future = asyncio.Future()137        self.once(138            self.Events.Close, lambda context: self._closed_future.set_result(True)139        )140    def __repr__(self) -> str:141        return f"<BrowserContext browser={self.browser}>"142    def _on_page(self, page: Page) -> None:143        self._pages.append(page)144        self.emit(BrowserContext.Events.Page, page)145        if page._opener and not page._opener.is_closed():146            page._opener.emit(Page.Events.Popup, page)147    def _on_route(self, route: Route, request: Request) -> None:148        for handler_entry in self._routes:149            if handler_entry.matches(request.url):150                try:151                    handler_entry.handle(route, request)152                finally:153                    if not handler_entry.is_active:154                        self._routes.remove(handler_entry)155                        if not len(self._routes) == 0:156                            asyncio.create_task(self._disable_interception())157                break158        route._internal_continue()159    def _on_binding(self, binding_call: BindingCall) -> None:160        func = self._bindings.get(binding_call._initializer["name"])161        if func is None:162            return163        asyncio.create_task(binding_call.call(func))164    def set_default_navigation_timeout(self, timeout: float) -> None:165        self._timeout_settings.set_navigation_timeout(timeout)166        self._channel.send_no_reply(167            "setDefaultNavigationTimeoutNoReply", dict(timeout=timeout)168        )169    def set_default_timeout(self, timeout: float) -> None:170        self._timeout_settings.set_timeout(timeout)171        self._channel.send_no_reply("setDefaultTimeoutNoReply", dict(timeout=timeout))172    @property173    def pages(self) -> List[Page]:174        return self._pages.copy()175    @property176    def browser(self) -> Optional["Browser"]:177        return self._browser178    async def new_page(self) -> Page:179        if self._owner_page:180            raise Error("Please use browser.new_context()")181        return from_channel(await self._channel.send("newPage"))182    async def cookies(self, urls: Union[str, List[str]] = None) -> List[Cookie]:183        if urls is None:184            urls = []185        if not isinstance(urls, list):186            urls = [urls]187        return await self._channel.send("cookies", dict(urls=urls))188    async def add_cookies(self, cookies: List[SetCookieParam]) -> None:189        await self._channel.send("addCookies", dict(cookies=cookies))190    async def clear_cookies(self) -> None:191        await self._channel.send("clearCookies")192    async def grant_permissions(193        self, permissions: List[str], origin: str = None194    ) -> None:195        await self._channel.send("grantPermissions", locals_to_params(locals()))196    async def clear_permissions(self) -> None:197        await self._channel.send("clearPermissions")198    async def set_geolocation(self, geolocation: Geolocation = None) -> None:199        await self._channel.send("setGeolocation", locals_to_params(locals()))200    async def set_extra_http_headers(self, headers: Dict[str, str]) -> None:201        await self._channel.send(202            "setExtraHTTPHeaders", dict(headers=serialize_headers(headers))203        )204    async def set_offline(self, offline: bool) -> None:205        await self._channel.send("setOffline", dict(offline=offline))206    async def add_init_script(207        self, script: str = None, path: Union[str, Path] = None208    ) -> None:209        if path:210            script = (await async_readfile(path)).decode()211        if not isinstance(script, str):212            raise Error("Either path or script parameter must be specified")213        await self._channel.send("addInitScript", dict(source=script))214    async def expose_binding(215        self, name: str, callback: Callable, handle: bool = None216    ) -> None:217        for page in self._pages:218            if name in page._bindings:219                raise Error(220                    f'Function "{name}" has been already registered in one of the pages'221                )222        if name in self._bindings:223            raise Error(f'Function "{name}" has been already registered')224        self._bindings[name] = callback225        await self._channel.send(226            "exposeBinding", dict(name=name, needsHandle=handle or False)227        )228    async def expose_function(self, name: str, callback: Callable) -> None:229        await self.expose_binding(name, lambda source, *args: callback(*args))230    async def route(231        self, url: URLMatch, handler: RouteHandlerCallback, times: int = None232    ) -> None:233        self._routes.insert(234            0,235            RouteHandler(URLMatcher(self._options.get("baseURL"), url), handler, times),236        )237        if len(self._routes) == 1:238            await self._channel.send(239                "setNetworkInterceptionEnabled", dict(enabled=True)240            )241    async def unroute(242        self, url: URLMatch, handler: Optional[RouteHandlerCallback] = None243    ) -> None:244        self._routes = list(245            filter(246                lambda r: r.matcher.match != url or (handler and r.handler != handler),247                self._routes,248            )249        )250        if len(self._routes) == 0:251            await self._disable_interception()252    async def _disable_interception(self) -> None:253        await self._channel.send("setNetworkInterceptionEnabled", dict(enabled=False))254    def expect_event(255        self,256        event: str,257        predicate: Callable = None,258        timeout: float = None,259    ) -> EventContextManagerImpl:260        if timeout is None:261            timeout = self._timeout_settings.timeout()262        wait_helper = WaitHelper(self, f"browser_context.expect_event({event})")263        wait_helper.reject_on_timeout(264            timeout, f'Timeout {timeout}ms exceeded while waiting for event "{event}"'265        )266        if event != BrowserContext.Events.Close:267            wait_helper.reject_on_event(268                self, BrowserContext.Events.Close, Error("Context closed")269            )270        wait_helper.wait_for_event(self, event, predicate)271        return EventContextManagerImpl(wait_helper.result())272    def _on_close(self) -> None:273        if self._browser:274            self._browser._contexts.remove(self)275        self.emit(BrowserContext.Events.Close, self)276    async def close(self) -> None:277        try:278            if self._options.get("recordHar"):279                har = cast(280                    Artifact, from_channel(await self._channel.send("harExport"))281                )282                await har.save_as(283                    cast(Dict[str, str], self._options["recordHar"])["path"]284                )285                await har.delete()286            await self._channel.send("close")287            await self._closed_future288        except Exception as e:289            if not is_safe_close_error(e):290                raise e291    async def _pause(self) -> None:292        await self._channel.send("pause")293    async def storage_state(self, path: Union[str, Path] = None) -> StorageState:294        result = await self._channel.send_return_as_dict("storageState")295        if path:296            await async_writefile(path, json.dumps(result))297        return result298    async def wait_for_event(299        self, event: str, predicate: Callable = None, timeout: float = None300    ) -> Any:301        async with self.expect_event(event, predicate, timeout) as event_info:302            pass303        return await event_info304    def expect_page(305        self,306        predicate: Callable[[Page], bool] = None,307        timeout: float = None,308    ) -> EventContextManagerImpl[Page]:309        return self.expect_event(BrowserContext.Events.Page, predicate, timeout)310    def _on_background_page(self, page: Page) -> None:311        self._background_pages.add(page)312        self.emit(BrowserContext.Events.BackgroundPage, page)313    def _on_service_worker(self, worker: Worker) -> None:314        worker._context = self315        self._service_workers.add(worker)316        self.emit(BrowserContext.Events.ServiceWorker, worker)317    def _on_request_failed(318        self,319        request: Request,320        response_end_timing: float,321        failure_text: Optional[str],322        page: Optional[Page],323    ) -> None:324        request._failure_text = failure_text325        if request._timing:326            request._timing["responseEnd"] = response_end_timing327        self.emit(BrowserContext.Events.RequestFailed, request)...

_chromium_browser_context.py

Source:_chromium_browser_context.py

...33            lambda params: self._on_background_page(from_channel(params["page"])),34        )35        self._channel.on(36            "crServiceWorker",37            lambda params: self._on_service_worker(from_channel(params["worker"])),38        )39    def _on_background_page(self, page: Page) -> None:40        self._background_pages.add(page)41        self.emit(ChromiumBrowserContext.Events.BackgroundPage, page)42    def _on_service_worker(self, worker: Worker) -> None:43        worker._context = self44        self._service_workers.add(worker)45        self.emit(ChromiumBrowserContext.Events.ServiceWorker, worker)46    @property47    def background_pages(self) -> List[Page]:48        return list(self._background_pages)49    @property50    def service_workers(self) -> List[Worker]:51        return list(self._service_workers)52    async def new_cdp_session(self, page: Page) -> CDPSession:53        return from_channel(54            await self._channel.send("crNewCDPSession", {"page": page._channel})...

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.