Discover AI-native insights at Testμ Conference‘25

How to use test_evaluate_work_with_unicode_chars method in Playwright Python

Best Python code snippet using playwright-python

test_evaluate.py

Source:test_evaluate.py

...62            }"""63        )64        == {"foo": [{"a": None}]}65    )66async def test_evaluate_work_with_unicode_chars(page):67    result = await page.evaluate('a => a["ä¸æåç¬¦"]', {"ä¸æåç¬¦": 42})68    assert result == 4269async def test_evaluate_throw_when_evaluation_triggers_reload(page):70    error = None71    try:72        await page.evaluate(73            "() => { location.reload(); return new Promise(() => {}); }"74        )75    except Error as e:76        error = e77    assert "navigation" in error.message78async def test_evaluate_work_with_exposed_function(page):79    await page.expose_function("callController", lambda a, b: a * b)80    result = await page.evaluate("callController(9, 3)")...

StackOverFlow community discussions

Questions

Discussion

TikTokApi Problem with Selenium (width) on Colab

Playwright: Get full XPATH of selected element

How to make Playwright not to raise exceptions when the browser is closed

How to check response in Playwright

How to quickly find out if an element exists in a page or not using playwright

ERROR: Error caught on signal handler: <bound method ScrapyPlaywrightDownloadHandler._engine_started. What is reason behind it?

Exit an async with in Python

Is there a way to handle dynamically loaded selectors with clicks on pages in scrapy-playwright?

Is there a way to return response body in Playwright?

The solution is here in the github issue [INSTALLATION/BUG] - Selenium and Google Colab #548:

I am closing this issue with the @mathigatti solution

!pip install TikTokApi
!python -m pip install playwright
!apt install libgstreamer1.0-0 libwoff1 libgstreamer1.0-0 libgstreamer1.0-dev libgstreamer-plugins-good1.0-0 libgstreamer-gl1.0-0 libgstreamer-plugins-bad1.0-0
%%writefile test.py
from TikTokApi import TikTokApi 
#your code

Then

!python test.py

https://stackoverflow.com/questions/66873285/tiktokapi-problem-with-selenium-width-on-colab

For Typescript/Javascript there is playwright-dompath which you can install with:

npm install playwright-dompath

Basically you just call the xPath function with the element you selected, and you get back the full xPath. Under the hood, it uses the same functions from Chrome DevTools.

https://stackoverflow.com/questions/66304326/playwright-get-full-xpath-of-selected-element

I found out that the problem was i was trying to close the context before closing the page first, and that was the thing which raises unhandleable exceptions. The solution is replacing the close_playwright() function with this:

def close_playwright():

    page.close()
    context.close()
    browser.close()
    playwright.dispose()

https://stackoverflow.com/questions/75023397/how-to-make-playwright-not-to-raise-exceptions-when-the-browser-is-closed

page.goto returns the Response of the page where its navigating to. So you can do something like that:

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.chromium.launch()
    page = browser.new_page()

    response = page.goto("http://whatsmyuseragent.org/")
    assert response.ok

    browser.close()

https://stackoverflow.com/questions/69596102/how-to-check-response-in-playwright

You can use one of those options :

const element = await page.$$("text='element'");
if (element) {
    // ...
}

const element = await page.$$("text='element'");
if (element.length) {
    // ...
}

await expect(page.locator(".MyClass")).toHaveCount(0)

https://stackoverflow.com/questions/70770526/how-to-quickly-find-out-if-an-element-exists-in-a-page-or-not-using-playwright

You can use one of those options :

const element = await page.$$("text='element'");
if (element) {
    // ...
}

const element = await page.$$("text='element'");
if (element.length) {
    // ...
}

await expect(page.locator(".MyClass")).toHaveCount(0)

https://stackoverflow.com/questions/70770526/how-to-quickly-find-out-if-an-element-exists-in-a-page-or-not-using-playwright

How about checking if the element is clickable: https://playwright.dev/docs/api/class-locator#locator-click

use trial option and if it returns true continue execution

  await page.click(First_Row_Download, , {trial:true})

https://stackoverflow.com/questions/73530386/exit-an-async-with-in-python

Maybe you can check the selector is visible and then you can click it?

if PageMethod("isVisible","#selector1"):
    PageMethod("click","#selector1")    
if PageMethod("isVisible","#selector2"):
    PageMethod("click","#selector2")    
if PageMethod("isVisible","#selector3"):
    PageMethod("click","#selector3")

I think you can usue the method isVisible, because scrapy_playwright support the same you have in playwright: https://github.com/scrapy-plugins/scrapy-playwright#supported-methods

And of course, isVisible() is a supported method in playwrgiht: https://playwright.dev/python/docs/api/class-page#page-is-visible

https://stackoverflow.com/questions/74380158/is-there-a-way-to-handle-dynamically-loaded-selectors-with-clicks-on-pages-in-sc

Just use some condition instead of print method, for example you could check if response contains some key in its json:

def run(playwright):
    chromium = playwright.chromium
    browser = chromium.launch()
    page = browser.new_page()
    # Subscribe to "request" and "response" events.
    page.on("request", lambda request: print(">>", request.method, request.url))
    page.on("response", lambda response: print("<<", response.status, response.url))
    page.goto("https://example.com")
    browser.close()

For Example:

page.on("response", lambda response: response if key in response.body())

There should be waitForResponse for python too, and you could use that.

https://stackoverflow.com/questions/71119462/is-there-a-way-to-return-response-body-in-playwright

Blogs

Check out the latest blogs from LambdaTest on this topic:

Playwright Tutorial: Getting Started With Playwright Framework

Playwright is a framework that I’ve always heard great things about but never had a chance to pick up until earlier this year. And since then, it’s become one of my favorite test automation frameworks to use when building a new automation project. It’s easy to set up, feature-packed, and one of the fastest, most reliable frameworks I’ve worked with.

Introducing The LambdaTest VS Code Extension

A productive workspace is crucial in crafting code rather than just finding the right IDE. After several generations of IDEs and code editors, Visual Studio Code is considered one of the best web development IDEs used by developers.

Panel Discussion: How to Decide What Automation Technology to Use [Testμ 2022]

To decide what automation technology to use, we brought together Joe Colantonio, Founder of TestGuild, Sneha. V, Director of Quality Engineering, Everfi, and Carlos Kidman, Director of Engineering, Stealth Startup. The panel discussion was hosted by Mudit Singh, Marketing head at LambdaTest. Mudit decided to take a step backwards and let the panel discussion happen.

30 Top Automation Testing Tools In 2022

The sky’s the limit (and even beyond that) when you want to run test automation. Technology has developed so much that you can reduce time and stay more productive than you used to 10 years ago. You needn’t put up with the limitations brought to you by Selenium if that’s your go-to automation testing tool. Instead, you can pick from various test automation frameworks and tools to write effective test cases and run them successfully.

Top Cross Browser Testing Trends [2022]

With the rapid evolution in technology and a massive increase of businesses going online after the Covid-19 outbreak, web applications have become more important for organizations. For any organization to grow, the web application interface must be smooth, user-friendly, and cross browser compatible with various Internet browsers.

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.