JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

Richaaaard發表於2016-01-08

JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)


主要內容

  • JMeter與WebDriver測試使用者登陸以CAS SSO為例

環境與參考

jvm版本: 1.8.0_65

jmeter版本: 2.13

firefox版本: 39.0.3

參考來源:

jmeter官方網站

Leverage your Load Testing using JMeter and Selenium WebDriver

jmeter-plugins.org:FirefoxDriverConfig

jmeter-plugins.org:WebDriverTutorial

jmeter-plugins.org:WebDriverSampler

Using Selenium with JMeter's WebDriver Sampler

準備

請參照JMeter (1) —— JMeter與WebDriver安裝與測試(101 Tutorial) 安裝好JMeter。

需要注意的是:

  • JMeter的版本
  • jar依賴衝突
  • firefox版本

待測試的CAS環境

架構

JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

配置

請參照以下文章搭建配置好CAS單點登陸的本地環境。

測試

注意:我們這裡只是以CAS單點登陸為應用場景進行測試,此測試可以推廣到其他的web應用的登陸場景,也可以擴充套件到更為豐富的流程或場景中。

準備

  1. 新建測試計劃(TestPlan)

  2. 為測試計劃新增執行緒組(TheadGroup)

  3. 依次新增

    • jp@gc - Firefox Driver Config (Thread Group -> Config Element)
    • jp@gc - WebDriver Sampler (Thread Group -> Sampler)
    • View Results Tree (Thread Group -> Listender)
    • View Results in Table (Thread Group -> Listender)

    JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

測試本地的CAS單點登陸環境

  1. 指令碼

     try {
    
         var pkg = JavaImporter(org.openqa.selenium, org.openqa.selenium.support.ui)
         WDS.log.info('WDS Name:' + WDS.name)
         WDS.sampleResult.sampleStart()
    
         WDS.browser.navigate().to('https://app2.hoau.com:8423/cas2')
         WDS.log.info('Browser Title:' + WDS.browser.getTitle())
         WDS.log.info('Browser CurrentUrl:' + WDS.browser.getCurrentUrl())    
         WDS.log.info('Cookie:' + WDS.browser.manage().getCookies())   
         WDS.log.info('Request Header: ' + WDS.sampleResult.getRequestHeaders())
    
         var what = WDS.browser.findElement(pkg.By.id('username'))
         what.sendKeys(['test01'])
         var where = WDS.browser.findElement(pkg.By.id('password'))
         where.sendKeys(['psw01'])
    
    
         //   var button = WDS.browser.findElement(pkg.By.cssSelector('.btn-submit'))
         var button = WDS.browser.findElement(pkg.By.xpath("//input[@type='submit']"))
         button.click()
    
    
         var wait = new pkg.WebDriverWait(WDS.browser, 10)
         wait.until(pkg.ExpectedConditions.presenceOfElementLocated(pkg.By.xpath("//a[@title='Click here to log out']")))
         var results = WDS.browser.findElements(pkg.By.xpath("//a[@title='Click here to log out']"))
         WDS.log.info('Result: ' + results)
    
         if(results.empty) {
             WDS.sampleResult.successful = false
             WDS.sampleResult.responseMessage = 'There were no results returned'
         }
    
         var iter = results.iterator()
         var element = iter.next()
         WDS.log.info('User: ' + element.getText())
    
         if('test01' != element.getText()) {
             WDS.sampleResult.successful = false
             WDS.sampleResult.responseMessage = 'Login Failure'
         }
    
         WDS.sampleResult.sampleEnd()
     } catch(ex) {
         WDS.log.error(ex)
         WDS.sampleResult.successful = false
         WDS.sampleResult.responseMessage = 'There were no results returned'
         WDS.sampleResult.sampleEnd()
     }
  2. 執行

    • 檢視“View Results in Table”

      JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

    • 檢視“View Results Tree”

      JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

需要注意的是,諸如JMeter + WebDriver Plugin或Selenium Grid + Remote WebDriver抑或Sahi Web UI這些方式的測試,都是試圖模擬使用者從終端(瀏覽器)與伺服器進行真實互動,以上這些方式長於流程、場景,而非服務端的壓力(當然也可用於服務端壓力測試之目的,這裡強調的只是意圖),如果要對服務端進行壓力測試,我們可以有其他更為適合的方式。

測試cnblogs登陸

我們同樣可以cnblogs為目標系統,嘗試用JMeter來測試cnblogs的登陸。

  1. 指令碼

     try {
    
         var pkg = JavaImporter(org.openqa.selenium, org.openqa.selenium.support.ui)
         WDS.log.info('WDS Name:' + WDS.name)
         WDS.sampleResult.sampleStart()
    
         WDS.browser.navigate().to('http://passport.cnblogs.com/user/signin')
         WDS.log.info('Browser Title:' + WDS.browser.getTitle())
         WDS.log.info('Browser CurrentUrl:' + WDS.browser.getCurrentUrl())    
         WDS.log.info('Cookie:' + WDS.browser.manage().getCookies())   
         WDS.log.info('Request Header: ' + WDS.sampleResult.getRequestHeaders())
    
         var what = WDS.browser.findElement(pkg.By.id('input1'))
         what.sendKeys(['weizhe_2008'])
         var where = WDS.browser.findElement(pkg.By.id('input2'))
         where.sendKeys(['********'])
         var button = WDS.browser.findElement(pkg.By.id('signin'))
         button.click()
    
         var wait = new pkg.WebDriverWait(WDS.browser, 1)
         // a href="http://home.cnblogs.com/u/richaaaard/"
         wait.until(pkg.ExpectedConditions.presenceOfElementLocated(pkg.By.xpath("//a[@href='http://www.cnblogs.com/richaaaard/']")))
         var results = WDS.browser.findElements(pkg.By.xpath("//a[@href='http://www.cnblogs.com/richaaaard/']"))
         WDS.log.info('Result: ' + results)
    
         if(results.empty) {
             WDS.sampleResult.successful = false
             WDS.sampleResult.responseMessage = 'There were no results returned'
         }
    
         WDS.sampleResult.sampleEnd()
     } catch(ex) {
         WDS.log.error(ex)
         WDS.sampleResult.successful = false
         WDS.sampleResult.responseMessage = 'There were no results returned'
         WDS.sampleResult.sampleEnd()
     }
  2. 執行

    JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

  3. 結果

    JMeter (2) —— JMeter與WebDriver測試使用者登陸以CAS SSO為例(101 Tutorial)

問題

  • 由於此種測試模式下,我們會使用JMeter配置的Firefox Driver Config元件,同時使用WDS(Web Driver Sampler)Script在JMeter UI環境下測試目標應用,當Thread Group 的迴圈次數(Loop Count)或執行緒數(Number of Threads (user))的值大於1時,當前執行緒關聯的瀏覽器代理例項一直處於生命期,而單點登陸會保留使用者的登陸資訊,無需反覆輸入使用者名稱密碼,瀏覽器保持了這些資訊,因此後面斷言會出現錯誤,指令碼無法反覆執行從而達到為“驗證使用者名稱密碼這個流程”進行壓力測試的目的。

    經研究,當前版本的JMeter及其使用的Selenium WebDriver Plugin除PhantomJS外,不支援動態修改Session Cookie,而網上多數文章介紹的相關Cookie的API,無法對瀏覽器Session Cookie進行操作。

      WDS.browser.manage().getCookies()
      WDS.browser.manage().deleteAllCookies()

    我們會使用HTTPs錄製的方式來解決壓力測試的問題。

擴充套件

為了解WDS 在JMeterUI下javascript指令碼的能力,以及涉及到面問題相關的原始碼。

  • WDS (JMeterPlugins-WebDriver.jar)

    com.googlecode.jmeter.plugins.webdriver.sampler.WebDriverSampler
    com.googlecode.jmeter.plugins.webdriver.sampler.WebDriverScriptable

      package com.googlecode.jmeter.plugins.webdriver.sampler;
    
      import org.apache.jmeter.samplers.SampleResult;
      import org.apache.log.Logger;
      import org.openqa.selenium.WebDriver;
    
      public final class WebDriverScriptable
      {
        private static final String[] EMPTY_ARGS = new String[0];
        private String name;
        private String parameters;
        private Logger log;
        private WebDriver browser;
        private SampleResult sampleResult;
    
        public void setName(String name)
        {
          this.name = name;
        }
    
        public String getName() {
          return this.name;
        }
    
        public void setParameters(String parameters) {
          this.parameters = parameters;
        }
    
        public String getParameters() {
          return this.parameters;
        }
    
        public String[] getArgs() {
          return this.parameters != null ? this.parameters.trim().replaceAll("\\s+", " ").split(" ") : EMPTY_ARGS;
        }
    
        public void setLog(Logger log) {
          this.log = log;
        }
    
        public Logger getLog() {
          return this.log;
        }
    
        public void setBrowser(WebDriver browser) {
          this.browser = browser;
        }
    
        public WebDriver getBrowser() {
          return this.browser;
        }
    
        public void setSampleResult(SampleResult sampleResult) {
          this.sampleResult = sampleResult;
        }
    
        public SampleResult getSampleResult() {
          return this.sampleResult;
        }
      }       
  • WDS.browser (WebDriver - selenium-api-2.47.0.jar)

    org.openqa.selenium.WebDriver
    org.openqa.selenium.Cookie

    package org.openqa.selenium;
    
    import java.net.URL;
    import java.util.List;
    import java.util.Set;
    import java.util.concurrent.TimeUnit;
    import org.openqa.selenium.logging.Logs;
    
    public abstract interface WebDriver extends SearchContext
    {
      public abstract void get(String paramString);
    
      public abstract String getCurrentUrl();
    
      public abstract String getTitle();
    
      public abstract List<WebElement> findElements(By paramBy);
    
      public abstract WebElement findElement(By paramBy);
    
      public abstract String getPageSource();
    
      public abstract void close();
    
      public abstract void quit();
    
      public abstract Set<String> getWindowHandles();
    
      public abstract String getWindowHandle();
    
      public abstract TargetLocator switchTo();
    
      public abstract Navigation navigate();
    
      public abstract Options manage();
    
      @Beta
      public static abstract interface Window
      {
        public abstract void setSize(Dimension paramDimension);
    
        public abstract void setPosition(Point paramPoint);
    
        public abstract Dimension getSize();
    
        public abstract Point getPosition();
    
        public abstract void maximize();
      }
    
      public static abstract interface ImeHandler
      {
        public abstract List<String> getAvailableEngines();
    
        public abstract String getActiveEngine();
    
        public abstract boolean isActivated();
    
        public abstract void deactivate();
    
        public abstract void activateEngine(String paramString);
      }
    
      public static abstract interface Navigation
      {
        public abstract void back();
    
        public abstract void forward();
    
        public abstract void to(String paramString);
    
        public abstract void to(URL paramURL);
    
        public abstract void refresh();
      }
    
      public static abstract interface TargetLocator
      {
        public abstract WebDriver frame(int paramInt);
    
        public abstract WebDriver frame(String paramString);
    
        public abstract WebDriver frame(WebElement paramWebElement);
    
        public abstract WebDriver parentFrame();
    
        public abstract WebDriver window(String paramString);
    
        public abstract WebDriver defaultContent();
    
        public abstract WebElement activeElement();
    
        public abstract Alert alert();
      }
    
      public static abstract interface Timeouts
      {
        public abstract Timeouts implicitlyWait(long paramLong, TimeUnit paramTimeUnit);
    
        public abstract Timeouts setScriptTimeout(long paramLong, TimeUnit paramTimeUnit);
    
        public abstract Timeouts pageLoadTimeout(long paramLong, TimeUnit paramTimeUnit);
      }
    
      public static abstract interface Options
      {
        public abstract void addCookie(Cookie paramCookie);
    
        public abstract void deleteCookieNamed(String paramString);
    
        public abstract void deleteCookie(Cookie paramCookie);
    
        public abstract void deleteAllCookies();
    
        public abstract Set<Cookie> getCookies();
    
        public abstract Cookie getCookieNamed(String paramString);
    
        public abstract WebDriver.Timeouts timeouts();
    
        public abstract WebDriver.ImeHandler ime();
    
        @Beta
        public abstract WebDriver.Window window();
    
        @Beta
        public abstract Logs logs();
      }
    } 

    以上要注意內部靜態類 Options裡面提供的,對Cookie進行操作的API

結束

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