使用Homebrew cask安装时,Selenium WebDriver无法找到Firefox

Question

Homebrewcask在Mac OS X上做了一些连接魔术的app.显然它不够好,因为Selenium WebDriver正在寻找Firefox可执行文件找不到它.以下是驱动Selenium 的RSpec测试运行中的错误消息Capybara.

提示Firefox可执行文件的位置有什么好方法？

Failure/Error: Unable to find matching line from backtrace
 Selenium::WebDriver::Error::WebDriverError:
   Could not find Firefox binary (os=macosx). Make sure Firefox is installed or set the path manually with Selenium::WebDriver::Firefox::Binary.path=
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/binary.rb:127:in `path'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/binary.rb:60:in `execute'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/binary.rb:34:in `start_with'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/launcher.rb:70:in `start_silent_and_wait'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/launcher.rb:35:in `block in launch'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/socket_lock.rb:20:in `locked'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/launcher.rb:32:in `launch'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/firefox/bridge.rb:24:in `initialize'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/common/driver.rb:31:in `new'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver/common/driver.rb:31:in `for'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdriver.rb:67:in `for'
 # /Users/mende/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/capybara-2.4.4/lib/capybara/selenium/driver.rb:13:in `browser'

Answer 1

正如错误消息所示:您必须指定Selenium::WebDriver::Firefox::Binary.path自定义应用程序路径.

# in spec_helper.rb
require 'selenium/webdriver'

Selenium::WebDriver::Firefox::Binary.path =
  "/opt/homebrew-cask/Caskroom/Firefox/latest/Firefox.app/Contents/MacOS/firefox"

如果您不想触摸测试框架,可以安装firefox /Applications(默认路径selenium搜索)以使其工作而无需设置Binary.path.

brew cask install --appdir="/Applications" firefox