完整追溯:
Traceback (most recent call last):
File "/home/webadmin/dev.taracares.com/src/app_payroll_reports/tests.py", line 134, in test_mstnla_sums_incentives_tennessee_sum
int(quince_amount_cell.text.replace(',', '')) +
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/selenium/webdriver/remote/webelement.py", line 77, in text
return self._execute(Command.GET_ELEMENT_TEXT)['value']
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/selenium/webdriver/remote/webelement.py", line 710, in _execute
return self._parent.execute(command, params)
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py", line 423, in execute
response = self.command_executor.execute(driver_command, params)
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/selenium/webdriver/remote/remote_connection.py", line 333, in execute
return self._request(command_info[0], url, body=data)
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/selenium/webdriver/remote/remote_connection.py", line 355, in _request
resp = self._conn.request(method, url, body=body, headers=headers)
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/request.py", line 74, in request
return self.request_encode_url(
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/request.py", line 96, in request_encode_url
return self.urlopen(method, url, **extra_kw)
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/poolmanager.py", line 375, in urlopen
response = conn.urlopen(method, u.request_uri, **kw)
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/connectionpool.py", line 783, in urlopen
return self.urlopen(
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/connectionpool.py", line 783, in urlopen
return self.urlopen(
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/connectionpool.py", line 783, in urlopen
return self.urlopen(
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/connectionpool.py", line 755, in urlopen
retries = retries.increment(
File "/home/webadmin/dev.taracares.com/dev/lib/python3.8/site-packages/urllib3/util/retry.py", line 574, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='localhost', port=58331): Max retries exceeded with url: /session/0f8192d1-c39f-49d1-9a99-7f91dfe95481/element/a5dd2645-6c15-44dc-b000-04bf6b7ea6cb/text (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fd9dcde24f0>: Failed to establish a new connection: [Errno 111] Connection refused'))
这是django应用程序的测试代码。测试过去运行良好，现在最后4个测试(使用selenium)有错误，这是在我在每个测试后添加driver.quit()后开始的。
这很奇怪。下面是运行每个(最后四个)测试的相关代码:
options = webdriver.FirefoxOptions()
options.add_argument("--headless")
driver = webdriver.Firefox(options=options)
driver.get('https://dev.taracares.com/pr-run-ppe?group=MS%2FTN%2FLA&check_date=05%2F01%2F2022')
# some selenium code
driver.quit()
怎么回事?
确保quit位于代码的底部。出错的命令是获取元素的文本。您似乎已经退出了驱动程序，然后试图调用与该驱动程序会话关联的元素的文本。
像driver.quit()这样的行应该留给tearDown()方法，等等。这样，如果测试提前结束/失败，它仍然会被调用，并且当您可能仍然需要驱动程序时，例如调用.text()时，它不会太早被调用，这需要驱动程序仍然打开。
许多现有的Python框架已经有一个tearDown()部分，你可以把driver.quit()(例如;类继承unittest.TestCase)，或者它可以是pytestfixture的一部分，(例如。pytest_runtest_teardown)。一些结合了Python/Selenium的框架会在测试结束时自动关闭驱动程序(例如:SeleniumBase)，为您省去了这一步。全面披露:我是SeleniumBase的作者/维护者。