What?JMeter做UI自動化!

松勤吳老師發表於2023-02-24
JMeterUI

JMeter做UI自動化

不推薦，好彆扭，但可行

外掛安裝

  • 搜外掛selenium，安裝

新增config

  • 新增執行緒組
  • 右鍵執行緒組->新增->配置元件->jp@gc - Chrome Driver Config

  • option和proxy不解釋了

新增Sampler

  • 右鍵執行緒組->新增->取樣器->jp@gc - WebDriver Sampler

  • script language 選擇：JavaScript（可惜沒有python）

  • 介面說明

    • Name - for the test that each Web Driver Sampler will have. This is used by the reports.
    • Parameters - is optional and allows the reader to inject variables used in the script section.
    • Script - allows the scripter to control the Web Driver and capture times and success/failure outcomes

DEMO程式碼及解釋

https://jmeter-plugins.org/wiki/WebDriverSampler/

  • 示例程式碼
// 相當於python的from  import   java的import
var pkg = JavaImporter(org.openqa.selenium)
 
// Start capturing the sampler timing 開始捕獲取樣
WDS.sampleResult.sampleStart()

// 程式碼塊
WDS.browser.get('http://114.116.2.138:8090/forum.php')
WDS.browser.findElement(pkg.By.id('ls_username')).sendKeys('admin')
// 等價於 WDS.browser.findElement(org.openqa.selenium.By.id('ls_username')).sendKeys('admin')
WDS.browser.findElement(pkg.By.id('ls_password')).sendKeys('123456')
// js語法定義了一個 sleep函式 ，讓你從python平滑過渡到 js
var sleep = function(time) {
    var timeOut = new Date().getTime() + parseInt(time, 10);
    while(new Date().getTime() <= timeOut) {}
}

WDS.browser.findElement(pkg.By.cssSelector('.pn.vm')).click()
sleep(3000)

// 斷言部分
if(WDS.browser.getCurrentUrl() != 'http://114.116.2.138:8090/forum.php') {
    WDS.sampleResult.setSuccessful(false)
    WDS.sampleResult.setResponseMessage('Expected url to be XXX')
}
else{
	WDS.sampleResult.setSuccessful(true)
}

// Stop the sampler timing 停止取樣
WDS.sampleResult.sampleEnd()

  • WDS就是Web Driver Sampler

  • 麻煩的是你可能並沒有自動補齊(好像可以出來，但沒研究)，這個物件有哪些屬性方法

  • 深入的研究要看

    https://www.selenium.dev/selenium/docs/api/java/org/openqa/selenium/package-summary.html

  • 比如顯式等待的一個應用

    var pkg = JavaImporter(org.openqa.selenium, org.openqa.selenium.support.ui)
var wait = new pkg.WebDriverWait(WDS.browser, 5, 0.5)
wait.until(pkg.ExpectedConditions.presenceOfElementLocated(pkg.By.cssSelector('ul.suggestions')))

關於WDS的一些屬性

  1. WDS.name - is the value provided in the Name field (above).
  2. WDS.vars - JMeterVariables - e.g.

vars.get("VAR1"); vars.put("VAR2","value"); vars.remove("VAR3"); vars.putObject("OBJ1",new Object());

  1. WDS.props - JMeterProperties (class java.util.Properties) - e.g.

props.get("START.HMS"); props.put("PROP1","1234");

  1. WDS.ctx - JMeterContext
  2. WDS.parameters - is the value provided in the Parameters field (above).
  3. WDS.args - is an array of the strings provided in the Parameters field, but split by the space ' ' character. This allows the scripter to provide a number of strings as input and access each one by position.
  4. WDS.log - is a Logger instance to allow the scripter to debug their scripts by writing information to the jmeter log file (JMeter provides a GUI for its log entries)
  5. WDS.browser - is the configured Web Driver browser that the scripter can script and control. There is detailed documentation on this object on the Selenium Javadocs page.
  6. WDS.sampleResult - is used to log when the timing should start and end. Furthermore, the scripter can set success/failure state on this object, and this SampleResult is then used by the JMeter reporting suite. The JMeter javadocs provide more information on the API of this object

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