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How to use test_browser_context_add_init_script_should_apply_to_a_cross_process_popup method in Playwright Python

Best Python code snippet using playwright-python

test_popup.py

Source:test_popup.py

...187            return win.injected;188        }"""189    )190    assert injected == 123191async def test_browser_context_add_init_script_should_apply_to_a_cross_process_popup(192    context, server193):194    await context.add_init_script("window.injected = 123")195    page = await context.new_page()196    await page.goto(server.EMPTY_PAGE)197    async with page.expect_popup() as popup_info:198        await page.evaluate(199            "url => window.open(url)", server.CROSS_PROCESS_PREFIX + "/title.html"200        )201    popup = await popup_info.value202    assert await popup.evaluate("injected") == 123203    await popup.reload()204    assert await popup.evaluate("injected") == 123205async def test_should_expose_function_from_browser_context(context, server):...

Playwright tutorial

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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.
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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.
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