ExtentReports报告；
ExtentTest记录器；
代码在1类上运行正确，但是在使用范围报告时会为2类抛出空指针异常
1.我在@BeforeSuite
中初始化
2.然后在@BeforeMethod中初始化
3.在testng.xml中，有两个类Class1和Class2
4.在执行testng.xml时-class1的所有@Test完全运行，但是Class2在读取BeforeMethod时引发空指针异常错误（如step2中所述已初始化）
我还使用Aftermethod刷新报表并退出驱动程序。摆脱这种空指针异常的任何解决方案
下面是完整的代码
1。 TestBase类
package sampletestproject;
import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.util.Date;
import java.util.concurrent.TimeUnit;
import org.apache.commons.io.FileUtils;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import
org.openqa.selenium.chrome.ChromeDriver;
import
org.openqa.selenium.firefox.FirefoxDriver;
import
org.openqa.selenium.support.PageFactory;
import org.testng.ITestContext;
import org.testng.ITestNGMethod;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeSuite;
public class TestBasee {
private ExtentReports report;
public WebDriver driverObj;
public Homepagee homeObj;
@BeforeSuite (alwaysRun = true)
public void beforeTest(){
System.out.println("In @BeforeSuite");
report = new ExtentReports("G:\\ExtentReport"+fn_GetTimeStamp()+".html");
System.out.println("Out @BeforeSuite");
}
@AfterClass(alwaysRun = true)
public void tearDown(ITestContext context) throws IOException, InterruptedException{
System.out.println("@AfterClass In tear down");
ITestNGMethod[] tngMethods = context.getAllTestMethods();
int i=1;
for(ITestNGMethod tng: tngMethods){
String methodName = "Method"+i+": "+ tng.getMethodName();
i++;
System.out.println(methodName);
}
}
public static String fn_GetTimeStamp() {
DateFormat DF = DateFormat.getDateTimeInstance();
String DateVal = DF.format(new Date());
DateVal = DateVal.replaceAll("/", "_");
DateVal = DateVal.replaceAll(",", "_");
DateVal = DateVal.replaceAll(":", "_");
DateVal = DateVal.replaceAll(" ", "_");
return DateVal;
}
/******************** Open Site **************************/
public Homepagee gm_OpenApp(String BrowserName, String URL) throws Exception {
System.out.println("In gm_OpenAp Method");
System.out.println(BrowserName+" -- "+URL);
gm_LaunchBrowser(BrowserName);
Thread.sleep(2000);
gm_OpenURL(URL);
Thread.sleep(2000);
homeObj = PageFactory.initElements(driverObj, Homepagee.class);
return homeObj;
}
public void gm_OpenURL(String URL) {
driverObj.get(URL);
}
public void gm_LaunchBrowser(String browserName) throws Exception{
// Launch Chrome browser
if (browserName.equalsIgnoreCase("CH") == true) {
System.setProperty("webdriver.chrome.driver", "MasterFiles\\Drivers\\ChromeDriver\\Chromedriver_win32_v2.38\\chromedriver.exe");
driverObj = new ChromeDriver();
}
// Launch Firefox browser
else if (browserName.equalsIgnoreCase("FF") == true) {
System.setProperty("webdriver.gecko.driver", "MasterFiles\\Drivers\\GeckoDriver\\64Bit\\v20\\geckodriver.exe");
driverObj = new FirefoxDriver();
}
driverObj.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
driverObj.manage().timeouts().pageLoadTimeout(250, TimeUnit.SECONDS);
driverObj.manage().window().maximize();
}
/****************TAKE SCREENSHOT*****************/
public String gm_setScreenshotPath_forExtentReporting(String elementName, String resultStatus) {
System.out.println("In gm_setScreenshotPath_forExtentReporting");
System.out.println(elementName + "--" + resultStatus);
String screenshotPath = "G:\\QA\\AutomationTools\\Selenium\\WorkspaceMars1\\1.2hp.com.automationprac\\TestReports\\ExtentReport\\Screenshots\\"+ resultStatus + "\\" + elementName + "_" + fn_GetTimeStamp() + ".png";
return screenshotPath;
}
public void gm_TakeSnapshot(String destFilePath) throws IOException, InterruptedException {
TakesScreenshot tss = (TakesScreenshot) driverObj;
File srcfileobj = tss.getScreenshotAs(OutputType.FILE);
File destFileObj = new File(destFilePath);
FileUtils.copyFile(srcfileobj, destFileObj);
}
public ExtentReports getReport() {
return report;
}
public void setReport(ExtentReports report) {
this.report = report;
}
}
2。登录-页面对象
package sampletestproject;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.FindBy;
public class SignInPagee extends TestBasee{
@FindBy(xpath = "//div[@id = 'center_column']/h1")
public static WebElement PageHeading_SignIn_txt;
@FindBy(xpath = "//h3[contains(text(), 'Already registered?')]")
public static WebElement SectionHeading_SignIn_txt;
public SignInPagee(WebDriver driverObj){
this.driverObj = driverObj;
}
}
3。主页-PageObject
package sampletestproject;
import java.io.IOException;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import
org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.FindBy;
import
org.openqa.selenium.support.PageFactory;
import
org.openqa.selenium.support.ui.FluentWait;
import org.openqa.selenium.support.ui.Wait;
import
import com.google.common.base.Function;
public class Homepagee extends TestBasee {
public Homepagee(WebDriver driverObj){
this.driverObj = driverObj;
}
public SignInPagee navigateToSignInPage(){
System.out.println("In navigateToSignInPage");
driverObj.navigate().to("http://automationpractice.com/index.php?controller=authentication&back=my-account");
SignInPagee signInPageObj = PageFactory.initElements(driverObj, SignInPagee.class);
return signInPageObj;
}
}
4。 HomepageTest -Testpage
package sampletestproject;
import java.lang.reflect.Method;
import org.testng.Assert;
import org.testng.ITestResult;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Parameters;
import org.testng.annotations.Test;
import com.relevantcodes.extentreports.ExtentReports;
import com.relevantcodes.extentreports.ExtentTest;
import com.relevantcodes.extentreports.LogStatus;
public class HomepageeTest extends TestBasee {
//ExtentReports report;
ExtentTest logger;
String elementName;
String Comment;
String actualResult;
String expectedResult;
@BeforeMethod(alwaysRun = true)
@Parameters({ "Browser", "URL"})
public void getBrowser(Method method, String Browser, String URL) throws Exception{
logger = getReport().startTest((this.getClass().getSimpleName()+"::"+method.getName()), method.getName());
logger.assignAuthor("VK");
logger.assignCategory("HomePage - Smoketesting and TextTesting--Live");
homeObj = gm_OpenApp(Browser, URL);
}
@AfterMethod (alwaysRun = true)
public void publishReport_SIP(ITestResult result) throws Exception{
System.out.println("publishReport_SIP");
String resultStatus = null;
if(result.getStatus() == ITestResult.FAILURE){
resultStatus = "FAILED";
String screenshot_Path = gm_setScreenshotPath_forExtentReporting(elementName, resultStatus);
gm_TakeSnapshot(screenshot_Path);
String image = logger.addScreenCapture(screenshot_Path);
logger.log(LogStatus.FAIL, Comment, image);
}else{
resultStatus = "PASSED";
String screenshot_Path = gm_setScreenshotPath_forExtentReporting(elementName, resultStatus);
gm_TakeSnapshot(screenshot_Path);
System.out.println("screenshot_Path: "+screenshot_Path);
String image = logger.addScreenCapture(screenshot_Path);
logger.log(LogStatus.PASS, Comment, image);
}
getReport().endTest(logger);
getReport().flush();
System.out.println("closing now_SIP.");
driverObj.quit();
}
//"********Validation of SignIn Link********");
@Test(priority=0, groups = {"Smoke"})
public void validateHeaderSignInLink_HP() throws Exception{
System.out.println("In validateHeaderSignInLink Method_HP");
elementName = "SignInLink";
Comment = "validateHeaderSignInLink";
actualResult = "http://automationpractice.com/index.php?controller=authentication&back=my-account";
expectedResult = "http://automationpractice.com/index.php?controller=authentication&back=my-account";
Assert.assertEquals(actualResult, expectedResult);
System.out.println("Out of validateHeaderSignInLink method_HP");
}
//"********Validation of GetSavingNow Button********");
@Test (priority = 1, groups = {"Smoke"})
public void validateGetSavingNowButton_HP() throws Exception{
System.out.println("In validateGetSavingNowButton Method_HP");
elementName = "GETSAVINGSNOWButton";
Comment = "validateGetSavingNowButton";
expectedResult = "http://automationpractice.com/index.php";
actualResult = "http://automationpractice.com/index.php";
Assert.assertEquals(actualResult, expectedResult);
System.out.println("Out of validateGetSavingNowButton method_HP");
}
@Test (priority = 2, groups = {"UITest"})
//"********Validation of SearchBox********");
public void validateSearchField_HP() throws Exception{
System.out.println("In validateSearchField Method_HP");
elementName = "FadedShortSleeveTshirts_lnktxt";
Comment = "validateSearchField";
actualResult = "Faded Short Sleeve T-shirtss"; //Just to produce a failed result
expectedResult = "Faded Short Sleeve T-shirts";
Assert.assertEquals(actualResult, expectedResult);
System.out.println("Out of validateSearchField method_HP");
}
@Test (priority = 3, enabled = true, groups = {"Smoke", "UITest"})
//"********Validation of Slider1********");
public void validateHomepageSlider1_HP() throws Exception{
System.out.println("In validateHomepageSlider1 Method_HP");
elementName = "Homepage Slider1";
Comment = "validateHomepageSlider1";
actualResult = "https://www.prestashop.com/en?utm_source=v16_homeslider";
expectedResult = "https://www.prestashop.com/en?utm_source=v16_homeslider";
Assert.assertEquals(actualResult, expectedResult);
System.out.println("Out of validateHomepageSlider1 method_HP");
}
}
5。 SignIntest类-测试页
打包sampletestproject;
import java.lang.reflect.Method;
import org.testng.Assert;
import org.testng.ITestResult;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Parameters;
import org.testng.annotations.Test;
import
com.relevantcodes.extentreports.ExtentTest;
import
com.relevantcodes.extentreports.LogStatus;
public class SignInnTest extends TestBasee{
SignInPagee lognObj;
ExtentTest logger;
String elementName;
String Comment;
String expectedResult;
String actualResult;
@BeforeMethod(alwaysRun = true)
@Parameters({ "Browser", "URL"})
public void getBrowser(Method method, String Browser, String URL) throws Exception{
logger = getReport().startTest((this.getClass().getSimpleName()+"::"+method.getName()), method.getName());
logger.assignAuthor("VK");
logger.assignCategory("SignInpage - Smoketesting and TextTesting--Live");
homeObj = gm_OpenApp(Browser, URL);
lognObj = homeObj.navigateToSignInPage();
}
@AfterMethod (alwaysRun = true)
public void publishReport_SIP(ITestResult result) throws Exception{
System.out.println("publishReport_SIP");
String resultStatus = null;
if(result.getStatus() == ITestResult.FAILURE){
resultStatus = "FAILED";
String screenshot_Path = gm_setScreenshotPath_forExtentReporting(elementName, resultStatus);
gm_TakeSnapshot(screenshot_Path);
String image = logger.addScreenCapture(screenshot_Path);
logger.log(LogStatus.FAIL, Comment, image);
}else{
resultStatus = "PASSED";
String screenshot_Path = gm_setScreenshotPath_forExtentReporting(elementName, resultStatus);
gm_TakeSnapshot(screenshot_Path);
System.out.println("screenshot_Path: "+screenshot_Path);
String image = logger.addScreenCapture(screenshot_Path);
logger.log(LogStatus.PASS, Comment, image);
}
getReport().endTest(logger);
getReport().flush();
System.out.println("closing now_SIP.");
driverObj.quit();
}
@Test (priority = 0, groups = {"Smoke""})
public void validateSignInPage_PageHeading_SIP() throws Exception{
System.out.println("In validateSignInPage_PageHeading Method_SIP");
elementName = "SignIn_PageHeading_txt";
Comment = "validatePageHeading_SignInpage";
actualResult = "AUTHENTICATION";
expectedResult = "AUTHENTICATION";
Assert.assertEquals(actualResult, expectedResult); //Here test will pass
System.out.println("Out of validateSignInPageHeading method_SIP");
}
@Test (groups = {"UITest"}, dependsOnMethods = { "validateSignInPage_PageHeading_SIP" })
public void validateSignInPage_SignInSectionHeading_SIP() throws Exception{
System.out.println("In validateSignInPage_SignInSectionHeading Method_SIP");
elementName = "SignInPage_SignInSectionHeading_txt";
Comment = "validateSectionHeading_SignInpage";
actualResult = "ALREADY REGISTERED1?";
expectedResult = "ALREADY REGISTERED?";
Assert.assertEquals(actualResult, expectedResult); //Here Test will fail as actual not equal to expected
System.out.println("Out of validateSignInPage_SignInSectionHeading method_SIP");
}
}
6.testng.xml 套件名称=“ Test” parallel =“测试”线程计数=“ 1”>
<test name="CHTest" >
<parameter name="Browser" value="CH" ></parameter>
<parameter name="URL" value="http://automationpractice.com/index.php"></parameter>
<groups><run>
<include name="Smoke"/>
<include name="UITest"/>
</run></groups>
<classes>
<class name= "sampletestproject.SignInnTest" />
<class name= "sampletestproject.HomepageeTest"/>
</classes></test></suite>
答案 0 :(得分：2)
我想说的是，最好在这里使用threadlocal或类似于管理测试而对ExtentReports使用类似的实现：
此外，如果您看到文档的示例部分，那么您已经有准系统的ExtentTestNGReportBuilder示例，可以在不创建任何自定义代码的情况下使用该示例。
您面临的问题是由于Java原则和管理实例而不是ExtentReports引起的。如果要为所有类提供一个报告，请确保整个运行过程中始终只有1个实例。防止任何行为会重新生成您遇到的实例-每个类都会重置报告变量，从而重置ExtentReports实例。
此外，我建议在这种情况下使用ITestListener，下面显示了一个示例，以便将报告与测试代码分开：
public class ExtentITestListener
implements ITestListener {
private static final ExtentReports EXTENT = Extent.getInstance();
private static ThreadLocal<ExtentTest> methodTest = new ThreadLocal<ExtentTest>();
private static ThreadLocal<ExtentTest> dataProviderTest = new ThreadLocal<>();
@Override
public synchronized void onStart(ITestContext context) { }
@Override
public synchronized void onFinish(ITestContext context) {
EXTENT.flush();
}
@Override
public synchronized void onTestStart(ITestResult result) {
String methodName = result.getMethod().getMethodName();
if (result.getParameters().length>0) {
if (methodTest.get() != null && methodTest.get().getModel().getName().equals(methodName)) { }
else {
createTest(result);
}
String paramName = Arrays.asList(result.getParameters()).toString();
ExtentTest paramTest = methodTest.get().createNode(paramName);
dataProviderTest.set(paramTest);
} else {
createTest(result);
}
}
private void createTest(ITestResult result) {
String methodName = result.getMethod().getMethodName();
ExtentTest test = EXTENT.createTest(methodName);
methodTest.set(test);
String[] groups = result.getMethod().getGroups();
if (groups.length > 0) {
Arrays.asList(groups)
.forEach(x -> methodTest.get().assignCategory(x));
}
}
@Override
public synchronized void onTestSuccess(ITestResult result) {
getTest(result).pass("Test passed");
}
private ExtentTest getTest(ITestResult result) {
ExtentTest t = result.getParameters() != null && result.getParameters().length>0
? dataProviderTest.get()
: methodTest.get();
return t;
}
@Override
public synchronized void onTestFailure(ITestResult result) {
getTest(result).fail(result.getThrowable());
}
@Override
public synchronized void onTestSkipped(ITestResult result) {
getTest(result).skip(result.getThrowable());
}
@Override
public synchronized void onTestFailedButWithinSuccessPercentage(ITestResult result) { }
}
答案 1 :(得分：0)
在执行testNG.xml文件中的2个类时，我也遇到了相同的问题。我发现在运行@AfterMethod批注后，ExtentReport变量将为null，这就是为什么从另一个类运行测试用例时，它会返回null指针异常。
对我有用的解决方案是将ExtentReport变量设置为Static，以便它创建一个范围报告变量的单个副本，并且在运行多个类时不会出现该错误。
例如：静态ExtentReports报告；
让我知道问题是否仍然存在。