Tools, Tips and Thoughts for Playwright, Selenium UI and API automated testing
Sometimes you don’t want a test to stop immediately an error is found, you want it to carry on performing other related tests. To achieve this in Playwright you can use ‘soft’ assertions. A Typical Scenario: Let’s say you want to verify that a product’s price details are displayed correctly, including the local sales tax. […]
TL;DR : my AI prompt to find missing ‘await’ clauses I am writing asynchronous test automation code using Playwright and Typescript.Check the test code below for missing “await” clauses:test(‘your Playwright test’, async ({ page }) => { // etc…}); The problem – missing an await One of the most frustrating issues test automation engineers can […]
Fixtures are a feature of the Playwright test runner that allows you to define commonly used components or values for your test automation needs. Examples of fixture use include database connections and authentication logic. Playwright fixtures automatically manage lifecycle (setup and cleanup) and can be overridden or customized per test or test file. Playwright comes […]
When writing UI tests with Playwright, selecting the right element is critical for building reliable, readable, and maintainable tests. While there are many ways to locate elements – using CSS selectors, XPath, text content, and so on – Playwright offers a powerful, accessibility-first method: getByRole. This high-level API is part of Playwright’s built-in testing library, […]
Sometimes performing an action opens up a web page in a new browser tab, so how can we handle this in Playwright? TL;DR: with a new Page object. You can see an example of a new browser tab being opened on the Playwright GitHub page in the link to the Playwright developer community website. You […]
Sometimes when writing test automation scripts you come across cases where, after performing an action like clicking on a button, then two different scenarios may occur: for example Page A may load or Page B but you don’t know which. How do you check if the browser has landed on page A or page B? […]
Most of the time when you want to check an element is visible in Playwright you do so as part of a test assertion. For example if you’re testing that attempting to log in using an invalid password displays an error message, your test might look something like this: This is absolutely fine because checking […]
Sometimes you create a Playwright test but can’t seem to actually run it in Visual Studio Code. Here are the most common reasons why, and how to fix it. Incorrect File Name Playwright uses certain conventions to identify test files. Depending on the language you’re using, ensure that your test files end with: Playwright Test […]
Are you getting an error when trying to execute commands in the Visual Studio Code terminal window, with the error message containing the text “{executable file} is not digitally signed”? For example when running “yarn dev” I get this error message: Here’s the actual screenshot: One way to fix this is to run this code […]
Sometimes when you’re writing a test you’ll find you want to run the same test multiple times, but with different data. For example let’s say you need tests for a UK e-commerce website to verify that the correct sales tax (VAT) is applied to purchases. Most products in the UK incur VAT of 20% but […]