我正在尝试在不同的浏览器上运行一些基本测试，但测试在启动第一个浏览器（在这种情况下是Firefox）后失败了一次，并且无法执行Chrome和IE浏览器。
使用TestNG注释的Java代码 -
package com.Selenium_Practice;
import java.util.concurrent.TimeUnit;
import junit.framework.Assert;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;
import org.openqa.selenium.opera.OperaDriver;
import org.openqa.selenium.safari.SafariDriver;
import org.testng.annotations.Parameters;
import org.testng.annotations.Test;
import com.relevantcodes.extentreports.ExtentReports;
import com.relevantcodes.extentreports.LogStatus;
public class CrossBrowserTestingUsingTestNG {
WebDriver driver;
ExtentReports report = ExtentReports.get(CrossBrowserTestingUsingTestNG.class);
@SuppressWarnings("deprecation")
@Test
@Parameters("browser")
public void CrossBrowserCodeBrowser(String browserName){
report.init("E:\\Report\\CrossBrowserTestingUsingTestNG.html", true);
report.startTest("Starting the test for CrossBrowserTestingUsingTestNG class");
if(browserName.equalsIgnoreCase("firefox")){
driver = new FirefoxDriver();
report.log(LogStatus.INFO, "Firefox browser is up and running");
}//if
else if(browserName.equalsIgnoreCase("chrome")){
System.setProperty("webDriver.chrome.driver", "E:\\Driver\\chromedriver.exe");
driver = new ChromeDriver();
report.log(LogStatus.INFO, "Chrome browser is up and runnning");
}//else if
else if(browserName.equalsIgnoreCase("ie")){
System.setProperty("webDriver.chrome.driver", "E:\\Driver\\IEDriverServer.exe");
driver = new InternetExplorerDriver();
report.log(LogStatus.INFO, "IE is up and running");
}//else if
driver.manage().window().maximize();
driver.get("http://stackoverflow.com/questions/31747315/getting-nullpointerexception-when-trying-to-generate-test-reports-using-extentre/31752389#31752389");
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
driver.findElement(By.xpath(".//*[@id='question-header']/h1/a")).getAttribute("href");
driver.findElement(By.xpath(".//*[@id='question-header']/h1/a")).getTagName();
System.out.println("Link : "+driver.findElement(By.xpath(".//*[@id='question-header']/h1/a")).getAttribute("href"));
System.out.println("Question : "+driver.findElement(By.xpath(".//*[@id='question-header']/h1/a")).getTagName());
Assert.assertEquals("a", driver.findElement(By.xpath(".//*[@id='question-header']/h1/a")).getTagName());
report.log(LogStatus.PASS, "Both are equal");
report.endTest();
driver.quit();
}//CrossBrowserCodeBrowser
}//CrossBrowserTestingUsingTestNG
测试服 -
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="CrossBrowserTesting" parallel="none">
<test name="FirefoxTestSuit">
<classes>
<parameter name="browser" value="firefox"/>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->
<test name="ChromeTestSuit">
<classes>
<parameter name="browser" value="chrome"/>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->
<test name="IETestSuit">
<classes>
<parameter name="browser" value="ie"/>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->
</suite> <!-- Suite -->
使用TestNG运行XML文件后，我得到以下结果 -
[TestNG] Running:
D:\Java Programs and files\com.Selenium_Practice\CrossBrowsertestng.xml
log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Link : http://stackoverflow.com/questions/31747315/getting-nullpointerexception-when-trying-to-generate-test-reports-using-extentre
Question : a
Aug 01, 2015 6:28:10 AM org.openqa.selenium.os.UnixProcess$SeleniumWatchDog destroyHarder
INFO: Command failed to close cleanly. Destroying forcefully (v2). org.openqa.selenium.os.UnixProcess$SeleniumWatchDog@1503f6b
===============================================
CrossBrowserTesting
Total tests run: 3, Failures: 2, Skips: 0
===============================================
更新的XML文件 - 在下面的XML文件中，我将参数放在类之外。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite name="CrossBrowserTesting" parallel="none">
<test name="FirefoxTestSuit">
<parameter name="browser" value="firefox"/>
<classes>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->
<test name="ChromeTestSuit">
<parameter name="browser" value="chrome"/>
<classes>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->
<test name="IETestSuit">
<parameter name="browser" value="ie"/>
<classes>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->
</suite> <!-- Suite -->
输出 - 运行更改的xmfile后，我得到相同的结果。
[TestNG] Running:
D:\Java Programs and files\com.Selenium_Practice\CrossBrowsertestng.xml
log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Link : http://stackoverflow.com/questions/31747315/getting-nullpointerexception-when-trying-to-generate-test-reports-using-extentre
Question : a
Aug 02, 2015 12:29:54 PM org.openqa.selenium.os.UnixProcess$SeleniumWatchDog destroyHarder
INFO: Command failed to close cleanly. Destroying forcefully (v2). org.openqa.selenium.os.UnixProcess$SeleniumWatchDog@1be3395
===============================================
CrossBrowserTesting
Total tests run: 3, Failures: 2, Skips: 0
===============================================
答案 0 :(得分：0)
参数标签应该在课外。
<test name="FirefoxTestSuit">
<parameter name="browser" value="firefox"/>
<classes>
<class name="com.Selenium_Practice.CrossBrowserTestingUsingTestNG"/>
</classes>
</test> <!-- CrossBrowser -->