【发布时间】：2017-01-24 19:30:17
【问题描述】：
我正在尝试在 Mac(El Capitan) 上本地运行 chrome 测试，但是我无法在 chrome 上本地运行测试，我可以使用远程 webdriver 调用 chrome。但是当我尝试在没有远程 webdriver 的情况下运行测试时，即直接调用 chrome，我得到了错误
driver/chrome/webdriver.py", line 62, in __init__
self.service.start()
File "/Users/testuser/practise/venv/lib/python2.7/site-packages/selenium/webdriver/common/service.py", line 92, in start
raise WebDriverException("Can not connect to the Service %s" % self.path)
WebDriverException: Message: Can not connect to the Service chromedriver
我的 chromedriver 二进制文件位于 /usr/local/bin，我的 PATH 中也有相同的文件。
Selenium Version: selenium (2.53.6)
Chromedriver Version: 2.24.417412
Python Version: 2.7.10
我的示例脚本
# Import unittest module for creating unit tests
import unittest
# Import time module to implement
import time
# Import the Selenium 2 module (aka "webdriver")
from selenium import webdriver
# For automating data input
from selenium.webdriver.common.keys import Keys
# For providing custom configurations for Chrome to run
from selenium.webdriver.chrome.options import Options
# --------------------------------------
# Provide a class for the unit test case
class PythonOrgSearchChrome(unittest.TestCase):
# Anything declared in setUp will be executed for all test cases
def setUp(self):
# Select which device you want to emulate by uncommenting it
# More information at: https://sites.google.com/a/chromium.org/chromedriver/mobile-emulation
mobile_emulation = {
"deviceName": "Google Nexus 5"
# Or specify a specific build using the following two arguments
#"deviceMetrics": { "width": 360, "height": 640, "pixelRatio": 3.0 },
#"userAgent": "Mozilla/5.0 (Linux; Android 4.2.1; en-us; Nexus 5 Build/JOP40D) AppleWebKit/535.19 (KHTML, like Gecko) Chrome/18.0.1025.166 Mobile Safari/535.19" }
}
# Define a variable to hold all the configurations we want
chrome_options = webdriver.ChromeOptions()
# Add the mobile emulation to the chrome options variable
chrome_options.add_experimental_option("mobileEmulation", mobile_emulation)
# Create driver, pass it the path to the chromedriver file and the special configurations you want to run
self.driver = webdriver.Chrome(chrome_options=chrome_options)
# An individual test case. Must start with 'test_' (as per unittest module)
def test_search_in_python_chrome(self):
# Assigning a local variable for the global driver
driver = self.driver
# Go to google.com
driver.get('http://www.google.com')
# A test to ensure the page has keyword Google in the page title
self.assertIn("Google", driver.title)
# Find and select the search box element on the page
search_box = driver.find_element_by_name('q')
# Enter text into the search box
search_box.send_keys('Cat gif')
# Make sure the results page returned something
assert "No results found." not in driver.page_source
# Submit the search box form
search_box.submit()
# Can also use Keys function to submit
#search_box.send_keys(Keys.RETURN)
# Another pause so we can see what's going on
time.sleep(5)
# Take a screenshot of the results
driver.save_screenshot('screenshot-deskto-chrome.png')
# Anything declared in tearDown will be executed for all test cases
def tearDown(self):
# Close the browser.
# Note close() will close the current tab, if its the last tab it will close the browser. To close the browser entirely use quit()
self.driver.close()
# Boilerplate code to start the unit tests
if __name__ == "__main__":
unittest.main()
我真的不确定发生了什么，因为我可以使用远程 webdriver 启动浏览器，任何帮助将不胜感激。
【问题讨论】：
-
你用最新的 chromedriver 试过最新的 selenium 了吗？为避免与路径相关的任何问题，您可以将它们（selenium 和 chromedriver）保存在同一目录中并从那里运行。如果浏览器会自动更新，有时您可能会在 chromedriver 和 chrome 浏览器之间遇到不兼容问题。
-
AFAIK 正在运行最新版本的 chromedriver 和 selenium。当我使用远程 webdriver 调用 chrome 时，同样的工作正常。如果是路径问题，那么远程 webdriver 也应该抱怨
-
我认为最新的 selenium 是 3.0。请重新检查并在此处查看我关于如何使用 chromedriver stackoverflow.com/questions/39468600/…启动 selenium 的答案@
标签： macos python-2.7 google-chrome selenium