隨後從GroovyConsole調用Geb Spock測試失敗，出現UnreachableBrowserException

Question

我在GroovyConsole.exe內運行以下腳本（GebReportingSpec測試用例）。它在GroovyConsole啓動時第一次正常運行。它打開FF，運行場景，然後在退出瀏覽器時關閉FF。

但是，當我從同一個GroovyConsole再次運行相同的腳本時，我得到一個UnreachableBrowserException。它首先調用setupSpec()方法，然後在調用測試用例內go方法，它調用cleanupSpec() ...

GEB： 0.9.0

硒： 2.26.0

Groovy的： 2.0.5

FF： 14.0.1

JDK： 1.6.0_37 64位

腳本：

@Grapes([ 
    @Grab("org.gebish:geb-core:0.9.0"), 
    @Grab("org.gebish:geb-spock:0.9.0"), 
    @Grab("org.seleniumhq.selenium:selenium-firefox-driver:2.26.0"), 
    //@Grab("org.seleniumhq.selenium:selenium-chrome-driver:2.26.0"), 
    @Grab("org.seleniumhq.selenium:selenium-support:2.26.0") 
]) 
import geb.Browser 
import geb.spock.GebReportingSpec 
import org.openqa.selenium.firefox.* 

class Google_Search_Test extends GebReportingSpec { 
def setupSpec() { 
    println "Inside setupSpec()..." 
    browser.config.autoClearCookies = true 
} 

def cleanupSpec() { 
    println "Inside cleanupSpec()..." 
    println "Quitting browser..." 
    browser.quit() 
} 

def "google_search_wikipedia"() { 
    println "Inside google_search_wikipedia..." 
    when: 
     println "Going to google.com..." 
     go "http://google.com/ncr" 

     // make sure we actually got to the page 
     assert title == "Google" 

     // enter wikipedia into the search field 
     $("input", name: "q").value("wikipedia") 

     // wait for the change to results page to happen 
     // (google updates the page dynamically without a new request) 
     waitFor { title.endsWith("Google Search") } 

     // is the first link to wikipedia? 
     def firstLink = $("li.g", 0).find("a.l") 
    then: 
     firstLink.text() == "Wikipedia" 
     println "Finished test execution..." 

} 
} 

GebConfig.groovy：

import org.openqa.selenium.firefox.* 
import java.util.concurrent.* 

driver = { 
    FirefoxProfile firefoxProfile = new FirefoxProfile() 
    firefoxProfile.setPreference("capability.policy.default.Window.frameElement", "allAccess") 

    def driver = new FirefoxDriver(firefoxProfile) 
    driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS) 
    driver.manage().timeouts().pageLoadTimeout(60, TimeUnit.SECONDS) 

    driver 
} 

waiting { 
    // all values are in seconds 
    timeout = 60 
    retryInterval = 0.5 
} 

reportsDir = "SeleniumReports" 

成功運行：

Inside setupSpec()... 
Inside google_search_wikipedia... 
Going to google.com... 
Finished test execution... 
Inside cleanupSpec()... 
Quitting browser... 
JUnit 4 Runner, Tests: 1, Failures: 0, Time: 15739 

後續運行（例外）：

Inside setupSpec()... 
Inside google_search_wikipedia... 
Going to google.com... 
Inside cleanupSpec()... 
Quitting browser... 
JUnit 4 Runner, Tests: 1, Failures: 2, Time: 687 
Test Failure: google_search_wikipedia(Google_Search_Test) 
org.openqa.selenium.remote.UnreachableBrowserException: Error communicating with the remote browser. It may have died. 
Build info: version: '2.26.0', revision: '18040', time: '2012-11-02 09:44:45' 
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.6.0_37' 
Driver info: driver.version: RemoteWebDriver 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:526) 
    at org.openqa.selenium.remote.RemoteWebDriver.get(RemoteWebDriver.java:275) 
    at geb.Browser.go(Browser.groovy:371) 
    at geb.Browser.go(Browser.groovy:363) 
    at geb.spock.GebSpec.methodMissing(GebSpec.groovy:51) 
    at Google_Search_Test.google_search_wikipedia(Google_Search.groovy:27) 
Caused by: org.openqa.selenium.WebDriverException: The FirefoxDriver cannot be used after quit() was called. 
Build info: version: '2.26.0', revision: '18040', time: '2012-11-02 09:44:45' 
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.6.0_37' 
Driver info: driver.version: RemoteWebDriver 
    at org.openqa.selenium.firefox.FirefoxDriver$LazyCommandExecutor.execute(FirefoxDriver.java:351) 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:505) 
    ... 5 more 

Test Failure: google_search_wikipedia(Google_Search_Test) 
org.openqa.selenium.remote.UnreachableBrowserException: Error communicating with the remote browser. It may have died. 
Build info: version: '2.26.0', revision: '18040', time: '2012-11-02 09:44:45' 
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.6.0_37' 
Driver info: driver.version: RemoteWebDriver 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:526) 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:535) 
    at org.openqa.selenium.remote.RemoteWebDriver.getPageSource(RemoteWebDriver.java:396) 
    at geb.report.PageSourceReporter.getPageSource(PageSourceReporter.groovy:42) 
    at geb.report.PageSourceReporter.writePageSource(PageSourceReporter.groovy:38) 
    at geb.report.PageSourceReporter.writeReport(PageSourceReporter.groovy:29) 
    at geb.report.CompositeReporter.writeReport(CompositeReporter.groovy:31) 
    at geb.Browser.report(Browser.groovy:698) 
    at geb.spock.GebReportingSpec.report(GebReportingSpec.groovy:43) 
    at geb.spock.GebReportingSpec.cleanup(GebReportingSpec.groovy:39) 
Caused by: org.openqa.selenium.WebDriverException: The FirefoxDriver cannot be used after quit() was called. 
Build info: version: '2.26.0', revision: '18040', time: '2012-11-02 09:44:45' 
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.6.0_37' 
Driver info: driver.version: RemoteWebDriver 
    at org.openqa.selenium.firefox.FirefoxDriver$LazyCommandExecutor.execute(FirefoxDriver.java:351) 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:505) 
    ... 9 more 

Answer 1

蓋布具有這樣只有一個瀏覽器窗口打開，並重新使用driver caching一個概念，你從常規控制檯使用它時遇到問題。 Geb爲您管理驅動程序/瀏覽器實例，並且該緩存在VM的整個生命週期中都處於活動狀態。您正在手動退出驅動程序（如果啓用了驅動程序緩存，則不應該這樣做）並且VM尚未關閉（Groovy控制檯仍在兩次執行之間運行），這意味着瀏覽器可以管理從緩存中檢索到的驅動程序已被關閉。

您這裏有兩個選擇，第二次在我看來更好：

• 不退出的司機 - 一個瀏覽器窗口將在您的測試的後續執行打開和重用
• 使用一個構建系統，例如Gradle（一個例子蓋布項目中使用搖籃是avaialable內置here） - 這是你的測試（S）執行後會關閉虛擬機，它也將自動關閉瀏覽器