我试图实现与测试参数化py.test和webdriver使用Python 3：
import pytest
from selenium import webdriver
from urllib.parse import urljoin
BASE_URL = 'http://ya.ru'
class WebDriverWrapper(type):
def __init__(self, base_url, *args, **kwargs):
self._base_url = base_url
super().__init__(*args, **kwargs)
def get(self, url):
url = urljoin(self._base_url, url)
return super().get(url)
@pytest.yield_fixture(scope='session', params=['PhantomJS', 'Firefox'])
def driver(request, base_url=BASE_URL):
_driver = None
if request.param == 'PhantomJS':
class Driver(webdriver.PhantomJS):
__metaclass__ = WebDriverWrapper
_driver = Driver(base_url)
elif request.param == 'Firefox':
class Driver(webdriver.Firefox):
__metaclass__ = WebDriverWrapper
_driver = Driver(base_url)
_driver.get('/')
yield _driver
_driver.quit()
所以..WebDriverWrapper例如webdriver.Firefox，我必须将其包装起来，这样base_url就不必再在代码中重复了；然后我有了driver固定的东西params; 每个测试都必须通过相应的param浏览器；我用元类实现了它
在py.test下运行代码后，出现多个错误：
==================================== ERRORS ====================================
_______________ ERROR at setup of test_case[PhantomJS-hsup-hsup] _______________
request = <SubRequest 'driver' for <Function 'test_case[PhantomJS-hsup-hsup]'>>
base_url = 'http://ya.ru'
@pytest.yield_fixture(scope='session', params=['PhantomJS', 'Firefox'])
def driver(request, base_url=BASE_URL):
_driver = None
if request.param == 'PhantomJS':
class Driver(webdriver.PhantomJS):
__metaclass__ = WebDriverWrapper
> _driver = Driver(base_url)
File "/mnt/common/Projects/python/autotest-snippets/page_object/fixtures.py", line 31
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
File "/usr/local/lib/python3.4/dist-packages/selenium/webdriver/phantomjs/webdriver.py", line 50
in __init__
self.service.start()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <selenium.webdriver.phantomjs.service.Service object at 0x7fc7a2721b70>
def start(self):
"""
Starts PhantomJS with GhostDriver.
:Exceptions:
- WebDriverException : Raised either when it can't start the service
or when it can't connect to the service
"""
try:
self.process = subprocess.Popen(self.service_args, stdin=subprocess.PIPE,
close_fds=platform.system() != 'Windows',
stdout=self._log, stderr=self._log)
except Exception as e:
> raise WebDriverException("Unable to start phantomjs with ghostdriver.", e)
E selenium.common.exceptions.WebDriverException: Message: Unable to start phantomjs with ghostdriver.
E Screenshot: available via screen
File "/usr/local/lib/python3.4/dist-packages/selenium/webdriver/phantomjs/service.py", line 75
WebDriverException
________________ ERROR at setup of test_case[Firefox-hsup-hsup] ________________
request = <SubRequest 'driver' for <Function 'test_case[Firefox-hsup-hsup]'>>
base_url = 'http://ya.ru'
@pytest.yield_fixture(scope='session', params=['PhantomJS', 'Firefox'])
def driver(request, base_url=BASE_URL):
_driver = None
if request.param == 'PhantomJS':
class Driver(webdriver.PhantomJS):
__metaclass__ = WebDriverWrapper
_driver = Driver(base_url)
elif request.param == 'Firefox':
class Driver(webdriver.Firefox):
__metaclass__ = WebDriverWrapper
> _driver = Driver(base_url)
File "/mnt/common/Projects/python/autotest-snippets/page_object/fixtures.py", line 35
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <fixtures.driver.<locals>.Driver object at 0x7fc7a26c5278>
firefox_profile = 'http://ya.ru', firefox_binary = None, timeout = 30
capabilities = None, proxy = None
def __init__(self, firefox_profile=None, firefox_binary=None, timeout=30,
capabilities=None, proxy=None):
self.binary = firefox_binary
self.profile = firefox_profile
if self.profile is None:
self.profile = FirefoxProfile()
self.profile.native_events_enabled = (
> self.NATIVE_EVENTS_ALLOWED and self.profile.native_events_enabled)
E AttributeError: 'str' object has no attribute 'native_events_enabled'
File "/usr/local/lib/python3.4/dist-packages/selenium/webdriver/firefox/webdriver.py", line 46
AttributeError
=========================== 2 error in 0.13 seconds ============================
如何解决？
用以下方法解决了它：
def Driver(klass, base_url):
class WebDriverWrapper(klass):
def __init__(self, base_url, *args, **kwargs):
self._base_url = base_url
super().__init__(*args, **kwargs)
def get(self, url):
url = urljoin(self._base_url, url)
return super().get(url)
return WebDriverWrapper(base_url)
@pytest.yield_fixture(scope='session', params=[
('PhantomJS', webdriver.PhantomJS),
('Firefox', webdriver.Firefox)
])
def driver(request, base_url=BASE_URL):
_driver = Driver(request.param[1], base_url)
_driver.get('/')
yield _driver
_driver.quit()
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