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TestNG + Selenium負載測試

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在本教程中，我們將演示如何使用[@Test](https://github.com/Test "@Test")屬性invocationCount和threadPoolSize在網站上執行負載測試或壓力測試。

使用的工具 ：

  • TestNG 6.8.7
  • Selenium 2.39.0
  • Maven 3

我們使用Selenium庫自動化瀏覽器來訪問網站。創建一個用於測試的Maven項目：TestngSelenium 。

1. 項目依賴文件配置

獲取TestNG和Selenium庫。如下 pom.xml 所示 -

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.yiibai</groupId>
    <artifactId>TestngSelenium</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>TestngSelenium</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <testng.version>6.8.7</testng.version>
        <selenium.version>3.4.0</selenium.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>${testng.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-java</artifactId>
            <version>${selenium.version}</version>
        </dependency>
    </dependencies>
</project>

2. @Test(invocationCount =？)

這個invocationCount確定TestNG應該運行這個測試方法的次數。

示例 2.1

package com.yiibai;


import org.testng.annotations.Test;

public class TestRepeatThis {

    @Test(invocationCount = 10)
    public void repeatThis() {
        System.out.println("repeatThis " );
    }
}

輸出 - repeatThis()方法將運行10次，結果如下所示 -

[TestNG] Running:
  C:\Users\Administrator\AppData\Local\Temp\testng-eclipse-1220889222\testng-customsuite.xml

repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis

===============================================
    Default test
    Tests run: 10, Failures: 0, Skips: 0
===============================================


===============================================
Default suite
Total tests run: 10, Failures: 0, Skips: 0
===============================================

[TestNG] Time taken by org.testng.reporters.XMLReporter@6442b0a6: 32 ms
[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@22f71333: 15 ms
[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@57829d67: 63 ms
[TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 0 ms
[TestNG] Time taken by org.testng.reporters.jq.Main@3d24753a: 109 ms
[TestNG] Time taken by org.testng.reporters.EmailableReporter2@6108b2d7: 0 ms

示例2.2 - 使用Selenium打開Firefox瀏覽器並加載「yiibai.com」。 此測試是確保頁面標題始終爲「易百教程™ - 專注於IT教程和實例」。

創建一個類文件：TestMultipleThreads.java，其代碼如下所示：

package com.yiibai;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.Assert;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;

public class TestMultipleThreads {

    @Test(invocationCount = 3)
    public void loadTestThisWebsite() {

        //System.setProperty("webdriver.chrome.driver", "chromedriver.exe");
        //WebDriver driver = new ChromeDriver();
//        System.setProperty("webdriver.firefox.bin", "D:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe");
        WebDriver driver = new FirefoxDriver();  
        driver.get("http://www.yiibai.com");
        System.out.println("Page Title is " + driver.getTitle());
        AssertJUnit.assertEquals("Google", driver.getTitle());
        driver.quit();

    }
}

輸出結果如下 - 您會注意到Firefox瀏覽器將提示關閉3次。

[TestNG] Running:
  C:\Users\Administrator\AppData\Local\Temp\testng-eclipse-1220889222\testng-customsuite.xml

repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
repeatThis 
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis
PASSED: repeatThis

===============================================
    Default test
    Tests run: 10, Failures: 0, Skips: 0
===============================================


===============================================
Default suite
Total tests run: 10, Failures: 0, Skips: 0
===============================================

[TestNG] Time taken by org.testng.reporters.XMLReporter@6442b0a6: 32 ms
[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@22f71333: 15 ms
[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@57829d67: 63 ms
[TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 0 ms
[TestNG] Time taken by org.testng.reporters.jq.Main@3d24753a: 109 ms
[TestNG] Time taken by org.testng.reporters.EmailableReporter2@6108b2d7: 0 ms

3. @Test(invocationCount = ?, threadPoolSize = ?)

threadPoolSize屬性告訴TestNG創建一個線程池以通過多個線程運行測試方法。 使用線程池，會大大降低測試方法的運行時間。

示例3.1 - 啓動一個包含3個線程的線程池，並運行測試方法3次。

package com.yiibai;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.Assert;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;

public class TestMultipleThreads2 {

    @Test(invocationCount = 3, threadPoolSize = 3)
    public void testThreadPools() {

        System.out.printf("Thread Id : %s%n", Thread.currentThread().getId());

    }
}

執行上面代碼，輸出以下結果 -

[TestNG] Running:
  C:\Users\Administrator\AppData\Local\Temp\testng-eclipse-103220503\testng-customsuite.xml

[ThreadUtil] Starting executor timeOut:0ms workers:3 threadPoolSize:3
Thread Id : 13
Thread Id : 11
Thread Id : 12
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools

===============================================
    Default test
    Tests run: 3, Failures: 0, Skips: 0
===============================================


===============================================
Default suite
Total tests run: 3, Failures: 0, Skips: 0
===============================================

[TestNG] Time taken by org.testng.reporters.XMLReporter@6442b0a6: 19 ms
[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@22f71333: 5 ms
[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@57829d67: 50 ms
[TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 0 ms
[TestNG] Time taken by org.testng.reporters.jq.Main@3d24753a: 46 ms
[TestNG] Time taken by org.testng.reporters.EmailableReporter2@6108b2d7: 5 ms

示例3.2 - 啓動包含3個線程的線程池，並運行測試方法10次。

package com.yiibai;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.Assert;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;

public class TestMultipleThreads3 {

    @Test(invocationCount = 10, threadPoolSize = 3)
    public void testThreadPools() {

        System.out.printf("Thread Id : %s%n", Thread.currentThread().getId());

    }
}

執行上面代碼，輸出以下結果 -

[TestNG] Running:
  C:\Users\Administrator\AppData\Local\Temp\testng-eclipse--548867586\testng-customsuite.xml

[ThreadUtil] Starting executor timeOut:0ms workers:10 threadPoolSize:3
Thread Id : 13
Thread Id : 11
Thread Id : 12
Thread Id : 11
Thread Id : 13
Thread Id : 12
Thread Id : 13
Thread Id : 11
Thread Id : 13
Thread Id : 11
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools
PASSED: testThreadPools

===============================================
    Default test
    Tests run: 10, Failures: 0, Skips: 0
===============================================


===============================================
Default suite
Total tests run: 10, Failures: 0, Skips: 0
===============================================

[TestNG] Time taken by org.testng.reporters.XMLReporter@6442b0a6: 18 ms
[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@22f71333: 6 ms
[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@57829d67: 39 ms
[TestNG] Time taken by [FailedReporter passed=0 failed=0 skipped=0]: 0 ms
[TestNG] Time taken by org.testng.reporters.jq.Main@3d24753a: 105 ms
[TestNG] Time taken by org.testng.reporters.EmailableReporter2@6108b2d7: 11 ms

4. 負載測試示例

通過結合TestNG多線程和Selenium強大的瀏覽器自動化。 您可以創建一個簡單而強大的負載測試，創建一個類文件：TestMultipleThreadsLoad.java，其代碼如下所示：

輸出 - 以上測試將啓動一個線程池5，併發送100個URL請求到指定的網站。

[TestNG] Running:
  C:\Users\Administrator\AppData\Local\Temp\testng-eclipse--404588393\testng-customsuite.xml

[ThreadUtil] Starting executor timeOut:0ms workers:100 threadPoolSize:5

[START] Thread Id : 14 is started!
[START] Thread Id : 11 is started!
[START] Thread Id : 13 is started!
[START] Thread Id : 12 is started!
[START] Thread Id : 15 is started!1493821695786    geckodriver    INFO    Listening on 127.0.0.1:45272
1493821695787    geckodriver    INFO    Listening on 127.0.0.1:41719
1493821695792    geckodriver    INFO    Listening on 127.0.0.1:44078
1493821695793    geckodriver    INFO    Listening on 127.0.0.1:20291
1493821695804    geckodriver    INFO    Listening on 127.0.0.1:43472
1493821696563    mozprofile::profile    INFO    Using profile path C:\Users\ADMINI~1\AppData\Local\Temp\rust_mozprofile.1bGOSGl5q8Ao
1493821696589    mozprofile::profile    INFO    Using profile path C:\Users\ADMINI~1\AppData\Local\Temp\rust_mozprofile.5CndLuoF3lLq
1493821696589    mozprofile::profile    INFO    Using profile path C:\Users\ADMINI~1\AppData\Local\Temp\rust_mozprofile.8UhBfB3XciVW
1493821696591    mozprofile::profile    INFO    Using profile path C:\Users\ADMINI~1\AppData\Local\Temp\rust_mozprofile.kGZmelveSBLV
1493821696592    geckodriver::marionette    INFO    Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe
1493821696594    mozprofile::profile    INFO    Using profile path C:\Users\ADMINI~1\AppData\Local\Temp\rust_mozprofile.duSn42IvmcXK
1493821696595    geckodriver::marionette    INFO    Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe
1493821696596    geckodriver::marionette    INFO    Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe
1493821696598    geckodriver::marionette    INFO    Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe
1493821696624    geckodriver::marionette    INFO    Starting browser C:\Program Files (x86)\Mozilla Firefox\firefox.exe
1493821696626    geckodriver::marionette    INFO    Connecting to Marionette on localhost:56795
1493821696627    geckodriver::marionette    INFO    Connecting to Marionette on localhost:56799
1493821696628    geckodriver::marionette    INFO    Connecting to Marionette on localhost:56796
1493821696631    geckodriver::marionette    INFO    Connecting to Marionette on localhost:56798
1493821696632    geckodriver::marionette    INFO    Connecting to Marionette on localhost:56797

一些問題

問：對於使用Selenium和TestNG的負載測試，爲什麼一次僅提示一個瀏覽器？
答：您的測試方法完成得太快，嘗試放置Thread.sleep(5000)方法來延遲執行，現在您應該注意到多個瀏覽器同時提示(僅供演示用途)。

TestNG參數測試實例
TestNG + Spring集成測試