问题

[RemoteTestNG] 检测到 TestNG 版本 7.0.1
失败的配置: @BeforeMethod setUp
java.lang.NullPointerException
在 com.mercury.qa.base.TestBase.initialization(TestBase.java:50)
在 com.mercury.qa.testcases.LoginPageTest.setUp(LoginPageTest.java:31)
...

package com.mercury.qa.testcases;

import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

import com.mercury.qa.base.TestBase;
import com.mercury.qa.pages.HomePage;
import com.mercury.qa.pages.LoginPage;

public class LoginPageTest extends TestBase {

    LoginPage loginPage;
    HomePage homePage;

    @BeforeMethod
    public void setUp() {
        initialization();
        loginPage = new LoginPage();
    }

    @Test(priority = 1)
    public void loginPageTitleTest() {
        String title = loginPage.validateLoginPageTitle();
        Assert.assertEquals(title, "Welcome: Mercury Tours");
    }

    @Test(priority = 2)
    public void mercuryImageLogoTest() {
        boolean flag = loginPage.validateMercuryLogo();
        Assert.assertTrue(flag);
    }

    @Test(priority = 3)
    public void loginTest() {
        homePage = loginPage.login(prop.getProperty("username"), prop.getProperty("password"));
    }

    @AfterMethod
    public void tearDown() {
        driver.quit();
    }
}

package com.mercury.qa.base;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.events.EventFiringWebDriver;
import com.mercury.qa.util.TestUtil;

public class TestBase {

    public static WebDriver driver;
    public static Properties prop;
    public static EventFiringWebDriver e_driver;

    public TestBase(){
        try {
            prop = new Properties();
            FileInputStream ip = new FileInputStream("F:\\Vishal_Offc Work\\Workspace\\"
                    + "FreeMercuryTest\\src\\main\\java\\com\\mercury"
                    + "\\qa\\config\\config.properties");
            prop.load(ip);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void initialization(){
        String browserName = prop.getProperty("browser");

        if(browserName.equals("chrome")){
            System.setProperty("webdriver.chrome.driver","F:\\Drivers\\chromedriver_win32\\chromedriver.exe");
        }
        else if(browserName.equals("FF")){
            System.setProperty("webdriver.gecko.driver","F:\\Drivers\\geckodriver-v0.26.0-win64\\geckodriver.exe");
            driver = new FirefoxDriver(); 
        }

        driver.manage().window().maximize();
        driver.manage().deleteAllCookies();
        driver.manage().timeouts().pageLoadTimeout(TestUtil.PAGE_LOAD_TIMEOUT, TimeUnit.SECONDS);
        driver.manage().timeouts().implicitlyWait(TestUtil.IMPLICIT_WAIT, TimeUnit.SECONDS);

        driver.get(prop.getProperty("url"));
    }
}

（以上为翻译后的代码，已删除部分错误信息，如有需要，请在接下来的对话中说明。）

英文:

I have written the below code which is one of the program in designing a framework and it is giving me this below error everytime. Can some one pls help me in fixing this issue.
"[RemoteTestNG] detected TestNG version 7.0.1 FAILED CONFIGURATION: @BeforeMethod setUp java.lang.NullPointerException"

    package com.mercury.qa.testcases;
import org.testng.Assert;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import com.mercury.qa.base.TestBase;
import com.mercury.qa.pages.HomePage;
import com.mercury.qa.pages.LoginPage;
public class LoginPageTest extends TestBase {
LoginPage loginPage;
HomePage homePage;
public LoginPageTest() {
// This super() keyword will call the constructor of the base class which is &#39;TestBase&#39;
super();
}
@BeforeMethod
public void setUp() {
// This will call initialization() method from the base class but initialization() method
//in the base class contains getProperty() method so to avoid the compiler to throw null pointer 
//exception we have @Nullabledesigned the above constructor and called the base class constructor 
//through super() keyword.
initialization();
loginPage = new LoginPage();
}
@Test(priority = 1)
public void loginPageTitleTest() {
String title = loginPage.validateLoginPageTitle();
Assert.assertEquals(title, &quot;Welcome: Mercury Tours&quot;);
}
@Test(priority = 2)
public void mercuryImageLogoTest() {
boolean flag = loginPage.validateMercuryLogo();
Assert.assertTrue(flag);
}
@Test(priority = 3)
public void loginTest() {
//HomePage homePage = new HomePage(); // same as return New HomePage() which is written in LoginPage.java class
homePage = loginPage.login(prop.getProperty(&quot;username&quot;), prop.getProperty(&quot;password&quot;));
}
@AfterMethod
public void tearDown() {
driver.quit();
}
}

and below is the test base class which the above program is extending

package com.mercury.qa.base;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.events.EventFiringWebDriver;
import com.mercury.qa.util.TestUtil;
public class TestBase {
public static WebDriver driver;
public static Properties prop;
public static EventFiringWebDriver e_driver;
public TestBase(){
try {
prop = new Properties();
FileInputStream ip = new FileInputStream(&quot;F:\\Vishal_Offc Work\\Workspace\\&quot;
+ &quot;FreeMercuryTest\\src\\main\\java\\com\\mercury&quot;
+ &quot;\\qa\\config\\config.properties&quot;);
prop.load(ip);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void initialization(){
String browserName = prop.getProperty(&quot;browser&quot;);
if(browserName.equals(&quot;chrome&quot;)){
System.setProperty(&quot;webdriver.chrome.driver&quot;,&quot;F:\\Drivers\\chromedriver_win32\\chromedriver.exe&quot;);
}
else if(browserName.equals(&quot;FF&quot;)){
System.setProperty(&quot;webdriver.gecko.driver&quot;,&quot;F:\\Drivers\\geckodriver-v0.26.0-win64\\geckodriver.exe&quot;);	
driver = new FirefoxDriver(); 
}
driver.manage().window().maximize();
driver.manage().deleteAllCookies();
driver.manage().timeouts().pageLoadTimeout(TestUtil.PAGE_LOAD_TIMEOUT, TimeUnit.SECONDS);
driver.manage().timeouts().implicitlyWait(TestUtil.IMPLICIT_WAIT, TimeUnit.SECONDS);
driver.get(prop.getProperty(&quot;url&quot;));
}
}

below is the console error which I am getting

[RemoteTestNG] detected TestNG version 7.0.1
FAILED CONFIGURATION: @BeforeMethod setUp
java.lang.NullPointerException
at com.mercury.qa.base.TestBase.initialization(TestBase.java:50)
at com.mercury.qa.testcases.LoginPageTest.setUp(LoginPageTest.java:31)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:63)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:348)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:302)
at org.testng.internal.TestInvoker.runConfigMethods(TestInvoker.java:695)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:523)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
at org.testng.TestRunner.privateRun(TestRunner.java:766)
at org.testng.TestRunner.run(TestRunner.java:587)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1109)
at org.testng.TestNG.runSuites(TestNG.java:1039)
at org.testng.TestNG.run(TestNG.java:1007)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
SKIPPED CONFIGURATION: @AfterMethod tearDown
SKIPPED CONFIGURATION: @BeforeMethod setUp
SKIPPED CONFIGURATION: @AfterMethod tearDown
SKIPPED CONFIGURATION: @BeforeMethod setUp
SKIPPED CONFIGURATION: @AfterMethod tearDown
SKIPPED: loginPageTitleTest
java.lang.NullPointerException
at com.mercury.qa.base.TestBase.initialization(TestBase.java:50)
at com.mercury.qa.testcases.LoginPageTest.setUp(LoginPageTest.java:31)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:63)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:348)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:302)
at org.testng.internal.TestInvoker.runConfigMethods(TestInvoker.java:695)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:523)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
at org.testng.TestRunner.privateRun(TestRunner.java:766)
at org.testng.TestRunner.run(TestRunner.java:587)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1109)
at org.testng.TestNG.runSuites(TestNG.java:1039)
at org.testng.TestNG.run(TestNG.java:1007)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
SKIPPED: mercuryImageLogoTest
java.lang.NullPointerException
at com.mercury.qa.base.TestBase.initialization(TestBase.java:50)
at com.mercury.qa.testcases.LoginPageTest.setUp(LoginPageTest.java:31)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:63)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:348)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:302)
at org.testng.internal.TestInvoker.runConfigMethods(TestInvoker.java:695)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:523)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
at org.testng.TestRunner.privateRun(TestRunner.java:766)
at org.testng.TestRunner.run(TestRunner.java:587)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1109)
at org.testng.TestNG.runSuites(TestNG.java:1039)
at org.testng.TestNG.run(TestNG.java:1007)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
SKIPPED: loginTest
java.lang.NullPointerException
at com.mercury.qa.base.TestBase.initialization(TestBase.java:50)
at com.mercury.qa.testcases.LoginPageTest.setUp(LoginPageTest.java:31)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
at org.testng.internal.MethodInvocationHelper.invokeMethodConsideringTimeout(MethodInvocationHelper.java:63)
at org.testng.internal.ConfigInvoker.invokeConfigurationMethod(ConfigInvoker.java:348)
at org.testng.internal.ConfigInvoker.invokeConfigurations(ConfigInvoker.java:302)
at org.testng.internal.TestInvoker.runConfigMethods(TestInvoker.java:695)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:523)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1510)
at org.testng.TestRunner.privateRun(TestRunner.java:766)
at org.testng.TestRunner.run(TestRunner.java:587)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1109)
at org.testng.TestNG.runSuites(TestNG.java:1039)
at org.testng.TestNG.run(TestNG.java:1007)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:115)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
===============================================
Default test
Tests run: 3, Failures: 0, Skips: 3
Configuration Failures: 1, Skips: 5
===============================================
===============================================
Default suite
Total tests run: 3, Passes: 0, Failures: 0, Skips: 3
Configuration Failures: 1, Skips: 5
===============================================

答案1

得分: 0

在第41行的TestBase()类中，我忘记了为Chrome进行驱动程序初始化，尽管已经为Firefox添加了初始化，但没有为Chrome添加。我在if语句中添加了以下语句，对我起了作用。

driver = new ChromeDriver();

英文:

In the TestBase() class in line no 41. I have missed the driver initialization for chrome although it was added for firefox but not for chrome. I have added the below statement in the if statement and it worked for me.

driver = new ChromeDriver();

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失败的配置：@BeforeMethod setUp：java.lang.NullPointerException

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