Page Object Model In Playwright | Playwright With TypeScript Tutorial 🎭| Part IX | LambdaTest

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Watch this video to learn about the Page Object Model (POM) design pattern and how to write POM tests in Playwright to maintain the test cases easily.
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In this Part-IX of the Playwright tutorial series, 𝙆𝙤𝙪𝙨𝙝𝙞𝙠 𝘾𝙝𝙖𝙩𝙩𝙚𝙧𝙟𝙚𝙚 (@Koushik_chat), Content Creator at LetCode explains Page Object Model (POM) and how you can write and execute POM tests in Playwright using TypeScript.
🔹 𝑾𝒉𝒂𝒕 𝒊𝒔 𝑷𝒂𝒈𝒆 𝑶𝒃𝒋𝒆𝒄𝒕 𝑴𝒐𝒅𝒆𝒍 (𝑷𝑶𝑴)?
➡ Page Object Model, known as POM, is a design pattern that creates a repository for storing all online elements. It helps in the reduction of code duplication and the management of test scripts. Consider each web page of an application as a different class file in the Page Object Model. Each class file will only contain web page elements that correspond to it. Testers can use these items to conduct operations on the website under test.
🔹 𝑾𝒉𝒂𝒕 𝒂𝒓𝒆 𝒕𝒉𝒆 𝒂𝒅𝒗𝒂𝒏𝒕𝒂𝒈𝒆𝒔 𝒐𝒇 𝒕𝒉𝒆 𝑷𝒂𝒈𝒆 𝑶𝒃𝒋𝒆𝒄𝒕 𝑴𝒐𝒅𝒆𝒍 (𝑷𝑶𝑴)?
➡ 𝗘𝗮𝘀𝘆 𝗠𝗮𝗶𝗻𝘁𝗲𝗻𝗮𝗻𝗰𝗲: Everything in web automation depends on the DOM tree and selectors. The page object model simplifies maintenance since if the DOM tree or selectors change, we don't have to alter them.
➡ 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝗥𝗲𝘂𝘀𝗮𝗯𝗶𝗹𝗶𝘁𝘆: Using POM, we can reuse code written for another test. We can also construct custom helper methods to accomplish this. Reusability of code minimizes code, saving time and effort.
➡ 𝗥𝗲𝗮𝗱𝗮𝗯𝗶𝗹𝗶𝘁𝘆: Readability is improved because the tests are independent.
Ｖɪᴅᴇᴏ Ｃʜᴀᴘᴛᴇʀꜱ 👀
0:00 Introduction
0:04 Modules
0:24 What is POM?
0:48 Demo of Page Object Model
2:53 How to write pages?
27:42 How to execute the POM tests?
47:29 Conclusion
📌Also, learn 📃
🔸 What is the Page object model in playwright?
🔸 What is playwright testing?
🔸 How do you run a playwright test?
🔸 Should I use the page object model?
📌 𝑮𝒊𝒕𝑯𝒖𝒃 𝑳𝒊𝒏𝒌: github.com/ortoniKC/playwrigh...
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30 июн 2024

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Комментарии : 46

@gagrciajuanluis Год назад

Thank you for taking the time to put this tutorial together. I implemented this concept with Playwright and Java, and the implementation was a bit more "involved" when it came to "integrating" steps across pages; I had to use a common method to create instances of pages, such that (for instance) when clicking the "loginBtn", the return value would be an instance of the "HomePage" object. So, I am glad I came across this implementation which seems to make the overall experience much simpler.

@LambdaTest Год назад

Thanks Juan for your kind words. Glad you liked it ❤

@navyasharma2875 Год назад

Thanks for making these tutorials. I appreciate the precise explanation 🤗

@LambdaTest Год назад

Thanks for liking the video Navya.

@user-pc3dt3fr6g 5 месяцев назад

Thank you for the detailed explanation. It is really helpful. I just discovered your channel and I am going through all the videos one by one. You have explained it really nicely. Keep the good work up.

@LambdaTest 5 месяцев назад

Glad you liked it! Please subscribe to our RU-vid channel for more such videos 🌟

@user-st9xb6he7p 10 месяцев назад

Hey, do you guys have a video on how to loop new data into each text box & run the script until it loops through all the data? It's the missing part that would make this super awesome that no one has any videos on how to do with playwright. Thanks for the video!

@LambdaTest 10 месяцев назад

Hey there, Thank you for your feedback! Looping through new data in each text box with Playwright is a powerful testing technique. To achieve this, you can use a loop in your script, and for each iteration, input new data into the text box, and then execute your test steps. Ensure your loop iterates through all the data you have.

@jessicak9576 Год назад

Congrats on your great videos 🤩 Can you also make a video of using Javascript with Selenium?

@LambdaTest Год назад

Hi Jessica, Thanks for liking the video. We do have a playlist on Selenium with JavaScript: ru-vid.com/group/PLZMWkkQEwOPl0udc9Dap2NbEAkwkdOTV3

@udhayarajaraja Год назад

Really excellent bro... Please keep it up..

@LambdaTest 11 месяцев назад

Glad you liked this😊 Subscribe to our channel to never miss an update on the upcoming tutorials! ✨

@BurnedZero 3 месяца назад

Good video, but I have a question, in the playwright doc it's suggested to construct the page in this way: export class PlaywrightDevPage { readonly getStartedLink: Locator; constructor(page: Page) { this.getStartedLink = page.locator('a', { hasText: 'Get started' }); } Why is your different? Will both ways work?

@LambdaTest 3 месяца назад

Hey there, Thanks for reaching out, The code snippet you mentioned uses the Page Object Model (POM) pattern, a best practice in test automation that promotes code organization, reusability, and maintainability by encapsulating page elements and interactions within classes. This approach defines elements as properties of the class, making them easily accessible and manageable across different tests. The approach seen in the video might have been simpler and more direct, possibly for the sake of clarity or brevity in demonstration. Both methods are valid and work for automating tests with Playwright. The choice between them usually depends on the complexity of your test suite and your preferences for code structure and maintainability. The POM pattern is especially beneficial for larger projects and teams aiming for high maintainability and reusability of test code.

@user-ck3gv2pu5p 4 месяца назад

@LambdaThank you for taking the time and effort , are you providing online live classes , iam interested to take

@LambdaTest 4 месяца назад

Thank you for your interest and appreciation! Glad you're finding value in our videos. Currently, we don't offer live classes, but you can catch all our instructional content on our RU-vid channel. Make sure to subscribe for more insightful videos!

@srikanth184 Год назад

Thank you Koushik, Can you please make a video on how to call these elements and methods from one page object to another page object in playwright TS.

@LambdaTest Год назад

Hi Srinivas, Thanks for the suggestion! Subscribe, and look forward to more such tutorials! ✨

@noras6318 Год назад

Thank you so much for the excellent tutorials. I wonder what the difference between Page Object Model (POM) and Page Factory is? 🤔

@letcode Год назад

POM is a design pattern, whereas page factory is a class in selenium.

@LambdaTest Год назад

GitHub Repo: github.com/ortoniKC/playwright-ts-lambdatest

@jajatisahoo3831 Год назад

Nice explanation bro

@LambdaTest Год назад

Thanks Jajati. Glad you liked it 💖

@cansudenizaksoy9870 8 месяцев назад

Hello, import { test, expect } from "@playwright/test"; Even though I added the library as , when I run the test using terminate, I get Error: Requiring @playwright/test second time, error. so error says No tests found What should i do? :(

@LambdaTest 8 месяцев назад

Hey there, It seems you might be facing an issue with the way your environment is set up or how you're importing @playwright/test. Here are some steps you can try: - Ensure that you've installed the @playwright/test library correctly. You can reinstall it with: - Ensure that the file you're trying to execute is correctly structured as a Playwright test. The test should follow the standard format of: import { test, expect } from "@playwright/test"; test('some description', async ({ page }) => { // your test code here }); - Try running the test directly using the Playwright test runner instead of your npx playwright test [your-test-file-name] - If you're using any configuration files, ensure they are set up correctly. Let us know if you face any issues

@dushyantkaushik6912 Год назад

Awesome explanation 🤩 Could you please share your playwright GITHUB link?

@LambdaTest Год назад

Hi Dushyant. Here's the GitHub Link: github.com/ortoniKC/playwright-ts-lambdatest. I have pinned it as well

@shazianadim6588 Год назад

Hello Koushik, can you do a video for implementing builder pattern in typescript for ui automation with playwright

@LambdaTest Год назад

Thanks for the feedback! Subscribe and look forward to more tutorials! ✨

@Yasser-hq1xo Год назад

Can we also use LetXPATH locally when we're working on the project? if so, how can we use it then? a video would be optima for explaining?

@LambdaTest Год назад

Hey Yasser, Yes, we can use LetXPath to find the best XPath, CSS, and unique locators in any DOM. Stay tuned for new videos

@shelly1067 8 месяцев назад

I am not able to access method selectOption for selecting any option from drop down in page files where css and path are defined. This method is accessible only in spec file, then how to frame Pom with drop down selection.

@LambdaTest 8 месяцев назад

Here's a simplified way to set up dropdown selection with POM: - Page Object Class: Define your dropdown as an element in your page object class and provide a method to select an option from it. class ExamplePage { constructor(page) { this.page = page; this.dropdownSelector = 'your-dropdown-css-or-xpath-selector'; } async selectDropdownOption(value) { const dropdown = await this.page.$(this.dropdownSelector); await dropdown.selectOption(value); } } module.exports = ExamplePage; - Spec File: In your spec or test file, create an instance of the page object and call the method to select a dropdown option. const { test, expect } = require('@playwright/test'); const ExamplePage = require('./ExamplePage.js'); test('Select dropdown option', async ({ page }) => { const examplePage = new ExamplePage(page); await page.goto('your-test-url'); await examplePage.selectDropdownOption('optionValue'); // Your assertions here }); This way, you encapsulate the dropdown behavior within the page object and still have the flexibility to select different options in your test scenarios. If you still face issues, ensure that: Your selectors are correct. - The selectOption method is being correctly used. - Any required libraries or dependencies are properly imported. - Ensure that the Playwright version you're using supports the methods and patterns you're implementing.

@Brynjar1 Месяц назад

very nice

@LambdaTest Месяц назад

Glad you liked it! Please subscribe the channel for more such videos🙂

@katyayanilal3197 Год назад

Hi, for me it showing undefined URL for the same that u have used. What can I do regarding that

@LambdaTest Год назад

Hey Katyayani, If you're receiving an "undefined URL" error, it could mean that the URL variable you're trying to use is not properly defined or initialized before it's being used. Here are some general debugging steps you could follow: - Check the definition - Check the scope - Logging with console.log If you're still facing issues, please provide more details about your code or the context of the problem, and we would be happy to assist you further.

@user-vf7ve6oc1v Год назад

Does Playwright have custom commands for repetitive operations as in cypress?

@LambdaTest Год назад

Hey there👋🏻 Playwright does not have built-in support for custom commands as Cypress does.

@DavidMudge Год назад

I have this setup as well but its annoying that for every test you need to remember to add the line const register = new Register (page) I already tried putting this line in the test.beforeEach but its not working and not creating the object Is there any other way it can be done? I don't want it as Global setup as this will load a new browser for each test. I want each test file to load a browser and then each test will run on that browser session but I didnt want to have to declare the const for every new test!! jest works to put it in beforeEach but not playwright/test :(

@LambdaTest Год назад

Hey David, That's strange test.beforeEach(hookFunction) is the correct method to do this. Please also refer to the documentation playwright.dev/docs/api/class-test#test-before-each Can you any chance share us the code and we can try to find what's going wrong?