Having familiarized ourselves with the foundational Playwright commands,
let's venture into more advanced commands that will enable you to tackle sophisticated testing scenarios with ease.
Handling Frames:
page.frame(nameOrUrl): Access a specific frame on the page by its name or URL, allowing you to interact with content within iframes.
Managing Downloads:
page.waitForEvent('download'): Wait for a download event to be triggered, providing control over file downloads during your tests.
download.path(): Retrieve the file path of a downloaded file, facilitating verification and further file handling.
File Uploads:
page.setInputFiles(selector, filePath): Simulate file uploads by setting the file input to a specified file path, essential for testing file upload functionalities.
Emulating Devices:
browser.newContext({ viewport, userAgent, ... }): Create a new browser context that emulates a specific device, including viewport size and user agent, for responsive design testing.
Network Interception:
page.route(url, route => { ... }): Intercept and modify network requests, enabling you to mock responses, block requests, or alter request data for testing various network conditions.
page.setExtraHTTPHeaders(headers): Set additional HTTP headers for all requests made by the page, useful for testing with different authentication headers or custom headers.
Executing JavaScript:
page.evaluate(pageFunction[, ...args]): Execute JavaScript code within the context of the page, allowing you to manipulate the DOM, extract information, or trigger custom events.
page.evaluateHandle(pageFunction[, ...args]): Execute JavaScript and return a handle to a JavaScript object, enabling further interactions with complex objects.
Advanced Selectors:
page.$eval(selector, pageFunction[, ...args]): Execute JavaScript within the context of an element matching the selector, enabling fine-grained element manipulation.
page.$$eval(selector, pageFunction[, ...args]): Execute JavaScript on all elements matching the selector, providing a powerful way to interact with multiple elements at once.
Managing Browser Contexts:
browser.newContext([options]): Create a new browser context with optional settings, allowing for isolated and concurrent testing environments.
context.close(): Close a specific browser context, freeing up resources and maintaining clean test sessions.
By incorporating these advanced commands into your Playwright toolkit, you can create more complex and comprehensive automation scripts, enhancing your ability to test and ensure the quality of your web applications.
Stay tuned for our next chapter, where we'll dive into practical examples and real-world testing scenarios to put these advanced commands into action!
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