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How to use test_should_emit_error_event method in Playwright Python

Best Python code snippet using playwright-python

test_websocket.py

Source:test_websocket.py

...111    with pytest.raises(Error) as exc_info:112        async with ws.expect_event("framesent"):113            await page.evaluate("window.ws.close()")114    assert exc_info.value.message == "Socket closed"115async def test_should_emit_error_event(page, server, browser_name):116    future = asyncio.Future()117    page.on(118        "websocket",119        lambda websocket: websocket.on(120            "socketerror", lambda err: future.set_result(err)121        ),122    )123    await page.evaluate(124        """port => new WebSocket(`ws://localhost:${port}/bogus-ws`)""",125        server.PORT,126    )127    err = await future128    if browser_name == "firefox":129        assert err == "CLOSE_ABNORMAL"...

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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