输入的密码错误时是否可以验证？

Question

使用 selenium 为 safari 编写 auto-it 时，是否可以知道插入网站登录的密码是否错误？

我试过使用 try: 和 except:，但是当密码错误时 selenium 不会引发错误。

一个例子是：

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver=webdriver.Safari()
driver.get(r'website')
usr=driver.find_element_by_name(r'username')
usr.clear()
usr.send_keys(r'username')
pas=driver.find_element_by_name(r'password')
pas.clear()
pas.send_keys(r'password')
pas.send_keys(Keys.RETURN)

Answer 1

使用 WebDriverWait 和 element_to_be_clickable 以及以下 css 选择器。

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver=webdriver.Chrome()
driver.get(r'https://auth.florimont.ch/cas/login;jsessionid=8B5A3B65779756F3CF71ACB41E578AC3?service=https%3A%2F%2Fflore.florimont.ch%2Fhome')
usr=driver.find_element_by_name(r'username')
usr.clear()
usr.send_keys(r'username')
pas=driver.find_element_by_name(r'password')
pas.clear()
pas.send_keys(r'password')
pas.send_keys(Keys.RETURN)
print(WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.CSS_SELECTOR,"#fm1 #msg"))).text)

在控制台上打印：

Invalid credentials.

浏览器快照：

Answer 2

要验证插入网站登录名的 username/password 是否错误，您可以使用 try/catch{} 块，也可以使用以下 :

代码块：

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

chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument("start-maximized")
driver = webdriver.Chrome(options=chrome_options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
driver.get("https://auth.florimont.ch/cas/login?service=https%3A%2F%2Fflore.florimont.ch%2Fhome")
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input#username"))).send_keys("a_random_programmer")
driver.find_element_by_css_selector("input#password").send_keys("a_random_programmer")
driver.find_element_by_css_selector("input.btn-submit").click()
try:
    WebDriverWait(driver, 20).until(EC.text_to_be_present_in_element((By.XPATH, "//h2[text()='Enter your Username and Password']//preceding::div[1]"), "Invalid credentials."))
    print("Invalid Login")
except TimeoutException as e:
    print("Valid Login")
driver.quit()

控制台输出：
```
Invalid Login
```

输入的密码错误时是否可以验证？

Is it possible to validate when an entered password is wrong?

selenium

try-catch

python-3.x

selenium-webdriver

webdriverwait