def test_resize(session): # setting the window size by webdriver is synchronous # so we should see the results immediately session.window.size = (200, 100) assert session.window.size == {"width": 100, "height": 200} session.window.size = (100, 200) assert session.window.size == {"width": 200, "height": 100} def test_resize_by_script(session): # setting the window size by JS is asynchronous # so we poll waiting for the results size0 = session.window.size session.execute_script("window.resizeTo(100, 200)") size1 = session.window.size while size0 == size1: size1 = session.window.size assert size1 == {"width": 100, "height": 200} session.execute_script("window.resizeTo(200, 100)") size2 = session.window.size while size1 == size2: size2 = session.window.size assert size2 == {"width": 200, "height": 100}