Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use _setup_navigation_wait_helper method in Playwright Python

Best Python code snippet using playwright-python

_frame.py

Source:_frame.py

...102            from_nullable_channel(103                await self._channel.send("goto", locals_to_params(locals()))104            ),105        )106    def _setup_navigation_wait_helper(self, timeout: float = None) -> WaitHelper:107        wait_helper = WaitHelper(self._loop)108        wait_helper.reject_on_event(109            self._page, "close", Error("Navigation failed because page was closed!")110        )111        wait_helper.reject_on_event(112            self._page, "crash", Error("Navigation failed because page crashed!")113        )114        wait_helper.reject_on_event(115            self._page,116            "framedetached",117            Error("Navigating frame was detached!"),118            lambda frame: frame == self,119        )120        if timeout is None:121            timeout = self._page._timeout_settings.navigation_timeout()122        wait_helper.reject_on_timeout(timeout, f"Timeout {timeout}ms exceeded.")123        return wait_helper124    def expect_navigation(125        self,126        url: URLMatch = None,127        wait_until: DocumentLoadState = None,128        timeout: float = None,129    ) -> EventContextManagerImpl[Response]:130        if not wait_until:131            wait_until = "load"132        if timeout is None:133            timeout = self._page._timeout_settings.navigation_timeout()134        deadline = monotonic_time() + timeout135        wait_helper = self._setup_navigation_wait_helper(timeout)136        matcher = URLMatcher(url) if url else None137        def predicate(event: Any) -> bool:138            # Any failed navigation results in a rejection.139            if event.get("error"):140                return True141            return not matcher or matcher.matches(event["url"])142        wait_helper.wait_for_event(143            self._event_emitter,144            "navigated",145            predicate=predicate,146        )147        async def continuation() -> Optional[Response]:148            event = await wait_helper.result()149            if "error" in event:150                raise Error(event["error"])151            if wait_until not in self._load_states:152                t = deadline - monotonic_time()153                if t > 0:154                    await self.wait_for_load_state(state=wait_until, timeout=t)155            if "newDocument" in event and "request" in event["newDocument"]:156                request = from_channel(event["newDocument"]["request"])157                return await request.response()158            return None159        return EventContextManagerImpl(asyncio.create_task(continuation()))160    async def wait_for_load_state(161        self, state: DocumentLoadState = None, timeout: float = None162    ) -> None:163        if not state:164            state = "load"165        if state not in ("load", "domcontentloaded", "networkidle"):166            raise Error("state: expected one of (load|domcontentloaded|networkidle)")167        if state in self._load_states:168            return169        wait_helper = self._setup_navigation_wait_helper(timeout)170        wait_helper.wait_for_event(171            self._event_emitter, "loadstate", lambda s: s == state172        )173        await wait_helper.result()174    async def frame_element(self) -> ElementHandle:175        return from_channel(await self._channel.send("frameElement"))176    async def evaluate(self, expression: str, arg: Serializable = None) -> Any:177        return parse_result(178            await self._channel.send(179                "evaluateExpression",180                dict(181                    expression=expression,182                    arg=serialize_argument(arg),183                ),...

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.