关于google chrome：selenium.common.exceptions.WebDriverException：消息：通过Python unittest模块执行测试用例时没有这样的会话

selenium.common.exceptions.WebDriverException: Message: no such session while executing testcases through Python unittest module

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61

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

class KenLogin(unittest.TestCase):

def test_globe(self):

global driver

driver = webdriver.Chrome(executable_path='E:\Learning\chromedriver.exe')
driver.maximize_window()

def test_login(self):

driver.implicitly_wait(2000)
driver.get("http://qa.kenzen.com")
username = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/div[1]/input")
password = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/div[2]/input")

username.send_keys("[email protected]")
password.send_keys("Kenzen@123")

button = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/button")

button.send_keys(Keys.ENTER)
print("Login Pass")

def test_home(self):

driver.implicitly_wait(2000)

teamsummary = driver.find_element_by_id("teamsummary")

teamsummary.click()
print("Home Pass")

def test_newteam(self):

addteam = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div/div[1]/ul[2]/li/button")

addteam.click()

teamname = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div/div[2]/div/div[1]/input")#.send_keys(data)

admin = driver.find_element_by_id("administrator")
admin.send_keys("[email protected],[email protected]")
addteambutton = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div/div[2]/div/div[6]/button")
addteambutton.click()

print("Team Added")

def tearDown(self):
driver.close()

if __name__ =="__main__":
unittest.main()

有人能帮我解决这个问题吗？

我正在尝试运行多个函数并获取错误：

正在查找文件…完成。正在导入测试模块…完成。

=========================================================

错误：测试主页(kenzen.kenlogin.kenlogin)

Traceback (most recent call last): File
"E:\Learning\Workplace\kenZen\kenZen\KenLogin.py", line 37, in
test_home
driver.implicitly_wait(2000) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 895, in implicitly_wait
'ms': float(time_to_wait) * 1000}) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 314, in execute
self.error_handler.check_response(response) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\errorhandler.py",
line 242, in check_response
raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: no such
session (Driver info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.14393 x86_64)

=========================================================

错误：测试主页(kenzen.kenlogin.kenlogin)

Traceback (most recent call last): File
"E:\Learning\Workplace\kenZen\kenZen\KenLogin.py", line 60, in
tearDown
driver.close() File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 681, in close
self.execute(Command.CLOSE) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 314, in execute
self.error_handler.check_response(response) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\errorhandler.py",
line 242, in check_response
raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: no such
session (Driver info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.14393 x86_64)

=========================================================

错误：测试登录名(kenzen.kenlogin.kenlogin)

Traceback (most recent call last): File
"E:\Learning\Workplace\kenZen\kenZen\KenLogin.py", line 21, in
test_login
driver.implicitly_wait(2000) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 895, in implicitly_wait
'ms': float(time_to_wait) * 1000}) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 314, in execute
self.error_handler.check_response(response) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\errorhandler.py",
line 242, in check_response
raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: no such
session (Driver info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.14393 x86_64)

=========================================================

错误：测试登录名(kenzen.kenlogin.kenlogin)

Traceback (most recent call last): File
"E:\Learning\Workplace\kenZen\kenZen\KenLogin.py", line 60, in
tearDown
driver.close() File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 681, in close
self.execute(Command.CLOSE) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 314, in execute
self.error_handler.check_response(response) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\errorhandler.py",
line 242, in check_response
raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: no such
session (Driver info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.14393 x86_64)

=========================================================

错误：test_newteam(kenzen.kenlogin.kenlogin)

Traceback (most recent call last): File
"E:\Learning\Workplace\kenZen\kenZen\KenLogin.py", line 46, in
test_newteam
addteam = driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div/div[1]/ul[2]/li/button")
File
"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 387, in find_element_by_xpath
return self.find_element(by=By.XPATH, value=xpath) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 957, in find_element
'value': value})['value'] File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 314, in execute
self.error_handler.check_response(response) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\errorhandler.py",
line 242, in check_response
raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: no such
session (Driver info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.14393 x86_64)

=========================================================

错误：test_newteam(kenzen.kenlogin.kenlogin)

Traceback (most recent call last): File
"E:\Learning\Workplace\kenZen\kenZen\KenLogin.py", line 60, in
tearDown
driver.close() File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 681, in close
self.execute(Command.CLOSE) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\webdriver.py",
line 314, in execute
self.error_handler.check_response(response) File"C:\Users\Pardeep\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver
emote\errorhandler.py",
line 242, in check_response
raise exception_class(message, screen, stacktrace) selenium.common.exceptions.WebDriverException: Message: no such
session (Driver info: chromedriver=2.38.552522
(437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Windows NT
10.0.14393 x86_64)

1
2
3
4

----------------------------------------------------------------------
Ran 4 tests in 7.928s

FAILED (errors=6)

在使用python和unittest时，需要注意以下事项：

def setUp(self)：setup()是初始化的一部分，这个方法将在您要在这个testcase类中写入的每个测试函数之前被调用。
maximize_window()：使用chrome.options类来最大化浏览器窗口，而不是使用maximize_window()。
implicitly_wait()：隐式等待一旦设置，隐式等待就设置为WebDriver对象实例的生命周期。
始终在tearDown(){}方法中调用driver.quit()以优雅地关闭和销毁WebDriver和Web客户端实例。

下面是您自己的代码块，上面提到了一些小的调整：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

import unittest
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

class KenLogin(unittest.TestCase):

def setUp(self):
global driver
options = Options()
options.add_argument("start-maximized")
options.add_argument("disable-infobars")
options.add_argument("--disable-extensions")
cap = DesiredCapabilities().CHROME
cap = options.to_capabilities()
self.driver = webdriver.Chrome(desired_capabilities=cap, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')

def test_login(self):
self.driver.implicitly_wait(2000)
self.driver.get("http://qa.kenzen.com")
username = self.driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/div[1]/input")
password = self.driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/div[2]/input")
username.send_keys("[email protected]")
password.send_keys("Kenzen@123")
button = self.driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/button")
button.send_keys(Keys.ENTER)
print("Login Pass")

def tearDown(self):
self.driver.quit()

if __name__ =="__main__":
unittest.main()

控制台输出：

1
2
3
4
5
6
Login Pass
.
----------------------------------------------------------------------
Ran 1 test in 13.731s

OK

如果您希望只调用一次setup()函数，那么根据您的注释更新，您可以使用setUpClass和tearDownClass类方法，这些方法在类执行时在测试前后执行。

下面是您自己的代码块，上面提到了一些小的调整：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

import unittest
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

class KenLogin(unittest.TestCase):

@classmethod
def setUpClass(self):
global driver
options = Options()
options.add_argument("start-maximized")
options.add_argument("disable-infobars")
options.add_argument("--disable-extensions")
cap = DesiredCapabilities().CHROME
cap = options.to_capabilities()
self.driver = webdriver.Chrome(desired_capabilities=cap, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')

def test_login(self):
self.driver.implicitly_wait(2000)
self.driver.get("http://qa.kenzen.com")
username = self.driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/div[1]/input")
password = self.driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/div[2]/input")
username.send_keys("[email protected]")
password.send_keys("Kenzen@123")
button = self.driver.find_element_by_xpath("/html/body/div[1]/div/div[2]/div/div[2]/form/button")
button.send_keys(Keys.ENTER)
print("ENTER Key pressed")

def test_print_success(self):
print("Login Pass")

@classmethod
def tearDownClass(self):
self.driver.quit()

if __name__ =="__main__":
unittest.main()

控制台输出：

1
2
3
4
5
6
7
ENTER Key pressed
.Login Pass
.
----------------------------------------------------------------------
Ran 2 tests in 18.187s

OK

工具书类

在这里，您可以找到有关SeleniumPython中什么是UnitTest的详细讨论。
在这里，您可以找到有关几个测试的UnitTest设置/拆卸的详细讨论。
在这里，您可以只找到一次有关运行设置的详细讨论