How to use test_expose_binding method in Playwright Python

Best Python code snippet using playwright-python

test_page.py

Source:test_page.py Github

copy

Full Screen

...229 }"""230 )231 response = await response_info.value232 assert response.url == server.PREFIX + "/​digits/​2.png"233async def test_expose_binding(page):234 binding_source = []235 def binding(source, a, b):236 binding_source.append(source)237 return a + b238 await page.expose_binding("add", lambda source, a, b: binding(source, a, b))239 result = await page.evaluate("add(5, 6)")240 assert binding_source[0]["context"] == page.context241 assert binding_source[0]["page"] == page242 assert binding_source[0]["frame"] == page.main_frame243 assert result == 11244async def test_expose_function(page, server):245 await page.expose_function("compute", lambda a, b: a * b)246 result = await page.evaluate("compute(9, 4)")247 assert result == 36...

Full Screen

Full Screen

StackOverFlow community discussions

Questions
Discussion

Using Python-playwright, how do I make a screenshot without saving it to disk or using a temporary file?

Changing pickup and dropoff dates in turo using playwright

how to locate the elements which only appear when mouse move to the specific spot in playwright?

Saving Login with Playwright

Submitting a form with payload in selenium

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

What's the best way to setup playwright in Apache Airflow in Docker?

Python - Playwright timeout

Running python code in playwright container

Playwright Python: Click random list item from unordered list dropdown

You do not need to save the image to a file at all (cmp. screenshot documentation), but instead can simply store it in a variable, like img = page.screenshot(). You can then pass that variable to your REST request. I use the requests module in the example below, the POST request is simplified and may require some additional parameters (depending on your API) or for instance different URLs for the different browser types:

from playwright import sync_playwright
import requests

with sync_playwright() as p:
    for browser_type in [p.chromium, p.firefox, p.webkit]:
        browser = browser_type.launch()
        page = browser.newPage()
        page.goto('https://scrapingant.com/')
        # save screenshot to var
        img = page.screenshot() 
        # pass var directly to your request
        files = {'image': img, 'content-type': 'image/png'}
        requests.post('http://yourresturl.com', files=files)
        browser.close()

If you really wanted to save the image to a temporary file for some reason (which, as I understand your use case, is not really necessary), you could e.g. use the tempfile module and create a named temporary file (cmp. How to use tempfile.NamedTemporaryFile()?):

from playwright import sync_playwright
import tempfile
import requests

tf = tempfile.NamedTemporaryFile(suffix='.png')

with sync_playwright() as p:
    for browser_type in [p.chromium, p.firefox, p.webkit]:
        browser = browser_type.launch()
        page = browser.newPage()
        page.goto('https://scrapingant.com/')
        # save screenshot to temporary file
        page.screenshot(path=tf.name)
        # send request loading temporary file
        requests.post('http://myresturl.com', {'media': open(tf.name, 'rb')})
        browser.close()        

# close temporary file
tf.close()
https://stackoverflow.com/questions/65375788/using-python-playwright-how-do-i-make-a-screenshot-without-saving-it-to-disk-or

Blogs

Check out the latest blogs from LambdaTest on this topic:

How To Handle Captcha In Selenium

With the rapidly evolving technology due to its ever-increasing demand in today’s world, Digital Security has become a major concern for the Software Industry. There are various ways through which Digital Security can be achieved, Captcha being one of them.Captcha is easy for humans to solve but hard for “bots” and other malicious software to figure out. However, Captcha has always been tricky for the testers to automate, as many of them don’t know how to handle captcha in Selenium or using any other test automation framework.

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.

Open e2e Test Initiative with Open MCT: John Hill [Testμ 2022]

Open MCT is a next-generation mission control framework for data visualization on desktop and mobile devices. It was created at NASA’s Ames Research Center, and NASA uses it to analyze spacecraft mission data.

Selenium Tutorial: Basics and Getting Started

Selenium is still the most influential and well-developed framework for web automation testing. Being one of the best automation frameworks with constantly evolving features, it is poised to lead the industry in all aspects as compared to other trending frameworks like Cypress, Puppeteer, PlayWright, etc. Furthermore, using Selenium gives you the flexibility to use different programming languages like C#, Ruby, Perl, Java, Python, etc., and also accommodate different operating systems and web browsers for Selenium automation testing.

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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

Run Playwright Python automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful