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How to use test_response_headers_should_work method in Playwright Python

Best Python code snippet using playwright-python

test_network.py

Source:test_network.py

...170        # Curl does not show accept-encoding and accept-language171        server_headers.pop("accept-encoding")172        server_headers.pop("accept-language")173    assert request.headers == server_headers174async def test_response_headers_should_work(page, server):175    server.set_route("/empty.html", lambda r: (r.setHeader("foo", "bar"), r.finish()))176    response = await page.goto(server.EMPTY_PAGE)177    assert response.headers["foo"] == "bar"178async def test_request_post_data_should_work(page, server):179    await page.goto(server.EMPTY_PAGE)180    server.set_route("/post", lambda r: r.finish())181    requests = []182    page.on("request", lambda r: requests.append(r))183    await page.evaluate(184        '() => fetch("./post", { method: "POST", body: JSON.stringify({foo: "bar"})})'185    )186    assert len(requests) == 1187    assert requests[0].post_data == '{"foo":"bar"}'188async def test_request_post_data__should_be_undefined_when_there_is_no_post_data(...

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.
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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.