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How to use test_expose_function_should_work_with_complex_objects method in Playwright Python

Best Python code snippet using playwright-python

test_page.py

Source:test_page.py

...291    await page.goto(server.EMPTY_PAGE)292    await page.expose_function("compute", lambda a, b: a * b)293    await page.goto(server.CROSS_PROCESS_PREFIX + "/empty.html")294    assert await page.evaluate("compute(9, 4)") == 36295async def test_expose_function_should_work_with_complex_objects(page, server):296    await page.expose_function("complexObject", lambda a, b: dict(x=a["x"] + b["x"]))297    result = await page.evaluate("complexObject({x: 5}, {x: 2})")298    assert result["x"] == 7299async def test_expose_bindinghandle_should_work(page, server):300    targets = []301    def logme(t):302        targets.append(t)303        return 17304    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:...

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