Test the page position after clicking the Familiar or Unfamiliar button.

app/test/test_page_position.py

@@ -21,7 +21,7 @@ def test_by_random(text):
     try:
         location = driver.find_element_by_xpath('//a[@name="aaa"]').location  # 点击后单词次数≥1
         roll_height = get_scrollTop()  # 获取滚动条的位置
-        assert int(location - roll_height) == 0  # 差值小于1
+        assert int(location['y'] - roll_height) == 0  # 差值小于1
     except NoSuchElementException:  # 点击后单词消失，scrollTop=0，页面回到最上面
         roll_height = get_scrollTop()
         assert roll_height == 0