硒RC錯誤未知協議：本地主機

Question

我剛開始on Rails的3開始使用Ruby使用Selenium，我有我的代碼

before(:all) do 
    @verification_errors = [] 
    @selenium_driver = Selenium::Client::Driver.new \ 
    :host => "localhost", 
    :port => 2195, 
    :browser => "*firefox C:/Program Files (x86)/Mozilla Firefox/firefox.exe", 
    :url => "localhost:3000", 
    :timeout_in_second => 60 

    @selenium_driver.start_new_browser_session 
end 

after(:all) do 
    @selenium_driver.close_current_browser_session 
    @verification_errors.should == [] 
end 

it "should open the create new user page" do 
    page.open "http://localhost:3000/" 
    !page.is_text_present("translation missing").should be_false 
    page.click "link=Register" 
    page.wait_for_page_to_load "30000" 
    !page.is_text_present("translation missing").should be_false 
    page.is_text_present("New Account").should be_true 
end 

但是，當我試圖運行它們，我

11:02:29.118 INFO - Command request: getNewBrowserSession[*firefox C:/Program Files (x86)/Mozilla Firefox/firefox.exe, localhost:3000, , ] on session null 
11:02:29.118 INFO - creating new remote session 
11:02:29.119 INFO - Allocated session 5cbd2c60271b490ea90eccb193cb1d84 for localhost:3000, launching... 
11:02:29.119 ERROR - Failed to start new browser session, shutdown browser and clear all session data 
java.lang.RuntimeException: java.net.MalformedURLException: unknown protocol: localhost 
    at org.openqa.selenium.net.Urls.toProtocolHostAndPort(Urls.java:32) 
    at org.openqa.selenium.browserlaunchers.LauncherUtils.getDefaultRemoteSessionUrl(LauncherUtils.java:121) 
    at org.openqa.selenium.server.browserlaunchers.FirefoxChromeLauncher.launchRemoteSession(FirefoxChromeLauncher.java:413) 
    at org.openqa.selenium.server.browserlaunchers.FirefoxLauncher.launchRemoteSession(FirefoxLauncher.java:110) 
    at org.openqa.selenium.server.BrowserSessionFactory.createNewRemoteSession(BrowserSessionFactory.java:373) 
    at org.openqa.selenium.server.BrowserSessionFactory.getNewBrowserSession(BrowserSessionFactory.java:125) 
    at org.openqa.selenium.server.BrowserSessionFactory.getNewBrowserSession(BrowserSessionFactory.java:87) 
    at org.openqa.selenium.server.SeleniumDriverResourceHandler.getNewBrowserSession(SeleniumDriverResourceHandler.java:786) 
    at org.openqa.selenium.server.SeleniumDriverResourceHandler.doCommand(SeleniumDriverResourceHandler.java:423) 
    at org.openqa.selenium.server.SeleniumDriverResourceHandler.handleCommandRequest(SeleniumDriverResourceHandler.java:394) 
    at org.openqa.selenium.server.SeleniumDriverResourceHandler.handle(SeleniumDriverResourceHandler.java:147) 
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1530) 
    at org.openqa.jetty.http.HttpContext.handle(HttpContext.java:1482) 
    at org.openqa.jetty.http.HttpServer.service(HttpServer.java:909) 
    at org.openqa.jetty.http.HttpConnection.service(HttpConnection.java:820) 
    at org.openqa.jetty.http.HttpConnection.handleNext(HttpConnection.java:986) 
    at org.openqa.jetty.http.HttpConnection.handle(HttpConnection.java:837) 
    at org.openqa.jetty.http.SocketListener.handleConnection(SocketListener.java:243) 
    at org.openqa.jetty.util.ThreadedServer.handle(ThreadedServer.java:357) 
    at org.openqa.jetty.util.ThreadPool$PoolThread.run(ThreadPool.java:534) 
Caused by: java.net.MalformedURLException: unknown protocol: localhost 
    at java.net.URL.<init>(Unknown Source) 
    at java.net.URL.<init>(Unknown Source) 
    at java.net.URL.<init>(Unknown Source) 
    at org.openqa.selenium.net.Urls.toProtocolHostAndPort(Urls.java:24) 
    ... 19 more 
11:02:29.121 INFO - Got result: Failed to start new browser session: Error while launching browser on session null 

我不明白localhost如何成爲一個未知的協議，並且我沒有通過我自己的搜索找到很多幫助。

有人可以幫我，在此先感謝

Answer 1

本地主機正在成爲一個未知的協議，因爲你沒有之前指定任何協議，你應該改變:url => "localhost:3000"到:url => "http://localhost:3000"包括協議（HTTP）。另外，（至少在Java上的Selenium上）人們通常在做相當於page.open時使用相對路徑。