Question

import unittest
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.firefox.options import Options
from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.by import By
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.common.exceptions import NoSuchElementException
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time
import autoit
wait = WebDriverWait
firefox_options = webdriver.FirefoxOptions()
firefox_options.set_preference("dom.webnotifications.enabled", False)
driver = webdriver.Firefox(firefox_options=firefox_options, executable_path=r'C:\\firefoxdriver\\geckodriver.exe')
driver.maximize_window()
driver.get("http://www.demo.guru99.com/V4/")
driver.find_element_by_xpath('/html/body/form/table/tbody/tr[1]/td[2]/input').send_keys('mngr253724')
driver.find_element_by_xpath('/html/body/form/table/tbody/tr[2]/td[2]/input').send_keys('Et54Uje')
driver.find_element_by_xpath('/html/body/form/table/tbody/tr[3]/td[2]/input[1]').click()
time.sleep(5)

try:
    page_loaded = wait.until_not(
        lambda driver: driver.current_url == "http://www.demo.guru99.com/V4/manager/Managerhomepage.php"
    )
except TimeoutException:
    driver.fail("Loading timeout expired")

driver.assertEqual(
    driver.current_url,
    correct_page,
    msg="Successful Login"
)

错误：

File "C:/Users/Dell/PycharmProjects/Test_Order/Test_Order.py", line 27, in <module>
lambda driver: driver.current_url == "http://www.demo.guru99.com/V4/manager/Managerhomepage.php"
TypeError: until_not() missing 1 required positional argument: 'method'

Answer 1

替换：

try:
    page_loaded = wait.until_not(
        lambda driver: driver.current_url == "http://www.demo.guru99.com/V4/manager/Managerhomepage.php"
    )
except TimeoutException:
    driver.fail("Loading timeout expired")

具有：

try:
    page_loaded = wait.until_not(EC.url_to_be("http://www.demo.guru99.com/V4/manager/Managerhomepage.php"))
except TimeoutException:
    driver.fail("Loading timeout expired")

注意： ，您必须进行一些导入：

from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait

PS： ，您必须正确定义wait：

wait = WebDriverWait(webdriver, 10)

更多信息here。

Answer 2

您需要实例化WebDriverWait

wait = WebDriverWait(webdriver, 5)

您可以使用wait对象。

Answer 3

根据您的代码试用，我仍然不确定您的用例以及为什么要将{em> until 条件用作until_not的原因，如下所示：

page_loaded = wait.until_not(lambda driver: driver.current_url == "http://www.demo.guru99.com/V4/manager/Managerhomepage.php")

如果您的用例是要验证应用程序是否使用有效/错误的凭据将用户带到 url 为http://www.demo.guru99.com/V4/manager/Managerhomepage.php的页面，则可以使用以下解决方案：

要验证登录成功/失败，您可以检查新的 URL 包含 Managerhomepage 还是新的 Page Title 包含 Guru99银行经理主页。因此，您可以将 WebDriverWait 与期望条件设置为url_contains()或title_contains()，如下所示：

代码块：

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException
from selenium.common.exceptions import UnexpectedAlertPresentException

options = webdriver.ChromeOptions() 
options.add_argument("start-maximized")
options.add_argument('disable-infobars')
driver=webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
driver.get("http://www.demo.guru99.com/V4/")
driver.find_element_by_xpath('/html/body/form/table/tbody/tr[1]/td[2]/input').send_keys('mngr144003')
driver.find_element_by_xpath('/html/body/form/table/tbody/tr[2]/td[2]/input').send_keys('bUtymYr')
driver.find_element_by_xpath('/html/body/form/table/tbody/tr[3]/td[2]/input[1]').click()
try:
            WebDriverWait(driver, 10).until(EC.url_contains("Managerhomepage"))
        #WebDriverWait(driver, 10).until(EC.title_contains("Manager"))
        print("Login is successful. Page Title is : %s" %driver.title)
except (TimeoutException,UnexpectedAlertPresentException):
        print("Loading timeout expired")
driver.quit()

控制台输出（成功登录）：

Login is successful. Page Title is : Guru99 Bank Manager HomePage

控制台输出（登录失败）：
```
Loading timeout expired
```

尝试/捕获块显示TypeError：直到not_not（）缺少1个必需的位置参数：“方法”

3 个答案: