Best Python code snippet using playwright-python
test_page.py
Source:test_page.py  
...304    await page.expose_binding("logme", lambda source, t: logme(t), handle=True)305    result = await page.evaluate("logme({ foo: 42 })")306    assert (await targets[0].evaluate("x => x.foo")) == 42307    assert result == 17308async def test_page_error_should_fire(page, server, is_webkit):309    async with page.expect_event("pageerror") as error_info:310        await page.goto(server.PREFIX + "/error.html")311    error = await error_info.value312    assert error.message == "Fancy error!"313    stack = await page.evaluate("window.e.stack")314    # Note that WebKit reports the stack of the 'throw' statement instead of the Error constructor call.315    if is_webkit:316        stack = stack.replace("14:25", "15:19")317    assert error.stack == stack318async def test_page_error_should_handle_odd_values(page, is_firefox):319    cases = [["null", "null"], ["undefined", "undefined"], ["0", "0"], ['""', ""]]320    for [value, message] in cases:321        async with page.expect_event("pageerror") as error_info:322            await page.evaluate(f"() => setTimeout(() => {{ throw {value}; }}, 0)")...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.
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