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How to use test_expose_binding method in Playwright Python

Best Python code snippet using playwright-python

test_page.py

Source:test_page.py

...229            }"""230        )231    response = await response_info.value232    assert response.url == server.PREFIX + "/digits/2.png"233async def test_expose_binding(page):234    binding_source = []235    def binding(source, a, b):236        binding_source.append(source)237        return a + b238    await page.expose_binding("add", lambda source, a, b: binding(source, a, b))239    result = await page.evaluate("add(5, 6)")240    assert binding_source[0]["context"] == page.context241    assert binding_source[0]["page"] == page242    assert binding_source[0]["frame"] == page.main_frame243    assert result == 11244async def test_expose_function(page, server):245    await page.expose_function("compute", lambda a, b: a * b)246    result = await page.evaluate("compute(9, 4)")247    assert result == 36...

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