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How to use test_expose_function_should_survive_navigation method in Playwright Python

Best Python code snippet using playwright-python

test_page.py

Source:test_page.py

...266    await page.expose_function("woof", lambda: called.append(True))267    await page.add_init_script("woof()")268    await page.reload()269    assert called == [True]270async def test_expose_function_should_survive_navigation(page, server):271    await page.expose_function("compute", lambda a, b: a * b)272    await page.goto(server.EMPTY_PAGE)273    result = await page.evaluate("compute(9, 4)")274    assert result == 36275async def test_expose_function_should_await_returned_promise(page):276    async def mul(a, b):277        return a * b278    await page.expose_function("compute", mul)279    assert await page.evaluate("compute(3, 5)") == 15280async def test_expose_function_should_work_on_frames(page, server):281    await page.expose_function("compute", lambda a, b: a * b)282    await page.goto(server.PREFIX + "/frames/nested-frames.html")283    frame = page.frames[1]284    assert await frame.evaluate("compute(3, 5)") == 15...

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.
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