Maven如何传递系统属性变量到TestNG

本文介绍如何传递Maven pom.xml里的系统属性参数到TestNG,文章沿用笔者一贯的风格--例子驱动。

解决什么问题

1. 用过WebDriver的都知道,当你启动Chrome或IE的时候都需要设置系统属性, 比如

     System.setProperty("webdriver.ie.driver", "D:/temp/resources/chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("http://www.cnblogs.com");

经过本文的学习,在pom.xml里通过插件指定system Property Variables, 就不再需要第一步了。

并且这个值可以通过Maven的命令来改写,比如把路径改成 /home/tmp/chromedriver.exe 详细如何使用见下文。

2. 就像开发在不同环境构建系统一样,每种环境都有各自的配置参数,每个环境build前手动修改参数,显然不智能。

测试人员在开发自动化测试时也有多个环境,到底是测试Dev环境呢还是测试QA环境呢还是Production呢, 我们可以用maven 的 profile 来解决。

通过Maven命令传递不同的环境变量,代码根据不同的变量值,取不同的数据来进行初始化。

例子详解

在pom.xml里定义Maven surefire plugin

         <plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.16</version>
<configuration>
<suiteXmlFiles>
<suiteXmlFile>
${basedir}/src/test/resources/testSuite.xml
</suiteXmlFile>
</suiteXmlFiles>
<systemPropertyVariables>
<webdriver.chrome.driver>D:/temp/resources/chromedriver.exe</webdriver.chrome.driver>
<webdriver.ie.driver>D:/temp/resources/IEDriverServer.exe</webdriver.ie.driver>
<environment>${demo.automation.environment}</environment>
</systemPropertyVariables>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>

定义 profile, 用来给<environment>属性赋值,默认激活的为QA profile

 <profiles>
<profile>
<id>QA</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<demo.automation.environment>QA</demo.automation.environment>
</properties>
</profile>
<profile>
<id>DEV</id>
<properties>
<demo.automation.environment>DEV</demo.automation.environment>
</properties>
</profile>
</profiles>

##转载注明出处:http://www.cnblogs.com/wade-xu/p/4857471.html

@Test 很简单的测试方法 读取系统属性值

 package com.acxiom.insightlab.automation.util;

 import org.testng.annotations.Test;

 /**
* @Description: For demo purpose
* @author wadexu
*
* @updateUser
* @updateDate
*/
public class DemoTest { @Test
public void simpleTets() {
String chromePath = System.getProperty("webdriver.chrome.driver");
String iePath = System.getProperty("webdriver.ie.driver");
String env = System.getProperty("environment"); System.out.println("Chrome Driver Path: "+ chromePath);
System.out.println("IE Driver Path: "+ iePath);
System.out.println("Test Environment: "+ env);
} }

直接针对这个DemoTest类来 Run as TestNG, 取值都是Null, 因为根本没设置这些属性值

Chrome Driver Path: null
IE Driver Path: null
Test Environment: null
PASSED: simpleTets ===============================================
Default test
Tests run: 1, Failures: 0, Skips: 0
=============================================== [TestNG] Time taken by org.testng.reporters.XMLReporter@3366184d: 41 ms
[TestNG] Time taken by org.testng.reporters.EmailableReporter@999c305: 3 ms
[TestNG] Time taken by org.testng.reporters.JUnitReportReporter@7ced5732: 3 ms
[TestNG] Time taken by [TestListenerAdapter] Passed:0 Failed:0 Skipped:0]: 0 ms
[TestNG] Time taken by org.testng.reporters.SuiteHTMLReporter@2eb95569: 38 ms

应该右击pom.xml -> Run as -> Maven test 如果你用的IDE工具, 或者直接工程目录命令行下运行 mvn test

Chrome Driver Path: D:/temp/resources/chromedriver.exe
IE Driver Path: D:/temp/resources/IEDriverServer.exe
Test Environment: QA
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.754 sec - in TestSuite Results : Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 [INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.138s
[INFO] Finished at: Thu Oct 08 16:54:19 CST 2015
[INFO] Final Memory: 11M/217M
[INFO] ------------------------------------------------------------------------

注意观察结果,默认的profile 里的 <demo.automation.environment> 值QA被用到了。

##转载注明出处:http://www.cnblogs.com/wade-xu/p/4857471.html

可以通过命令行运行 mvn test -P DEV   (这个DEV是Profile的id)

Maven如何传递系统属性变量到TestNG

注意观察结果,另一个profile 里的 <demo.automation.environment> 值DEV被用到了。

通过命令行运行命令加 -D参数 可以覆盖pom里的变量值

比如运行 mvn test -P DEV -Dwebdriver.chrome.driver=C:/temp/chromedriver.exe -Dwebdriver.ie.driver=C:/temp/IEDriverServer.exe

Maven如何传递系统属性变量到TestNG

注意观察结果: Chrome 和 IE Driver path 被覆盖了。

##转载注明出处:http://www.cnblogs.com/wade-xu/p/4857471.html

整个pom.xml 文件如下

 <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/maven-v4_0_0.xsd">
<modelVersion>1.0.0</modelVersion>
<groupId>com.wadeshop.demo.automation</groupId>
<artifactId>demo-automation</artifactId>
<packaging>jar</packaging>
<version>1.0.0-SNAPSHOT</version>
<name>demo-automation</name> <properties>
<maven-compiler-version>3.1</maven-compiler-version>
<java-base-version>1.7</java-base-version>
<surefire-version>2.16</surefire-version>
</properties> <dependencies>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.8.7</version>
</dependency> <dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.46.0</version>
</dependency>
</dependencies> <build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-version}</version>
<configuration>
<source>${java-base-version}</source>
<target>${java-base-version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.16</version>
<configuration>
<suiteXmlFiles>
<suiteXmlFile>
${basedir}/src/test/resources/testngCopy.xml
</suiteXmlFile>
</suiteXmlFiles>
<systemPropertyVariables>
<webdriver.chrome.driver>D:/temp/resources/chromedriver.exe</webdriver.chrome.driver>
<webdriver.ie.driver>D:/temp/resources/IEDriverServer.exe</webdriver.ie.driver>
<environment>${demo.automation.environment}</environment>
</systemPropertyVariables>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</plugins>
</build> <profiles>
<profile>
<id>QA</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<demo.automation.environment>QA</demo.automation.environment>
</properties>
</profile>
<profile>
<id>DEV</id>
<properties>
<demo.automation.environment>DEV</demo.automation.environment>
</properties>
</profile>
</profiles> </project>

另外:

还可以这样写

<webdriver.chrome.driver>${DRIVER_PATH_CHROME}</webdriver.chrome.driver>

Maven会去取环境变量DRIVER_PATH_CHROME的值。

比如在Windows下写个bat 文件

先 SET DRIVER_PATH_CHROME=xxx

然后 cd 到 工程目录下

最后 运行 mvn test

其它操作系统同理。

 

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##转载注明出处:http://www.cnblogs.com/wade-xu/p/4857471.html

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