Chamindi Chamindi - 26 days ago 7
Java Question

Selenium TestNG - java.lang.NullPointerException

I am trying to test the login function to Gmail. But it displays an exception error "java.lang.NullPointerException" . Code as follows:

package gmail;

import java.util.concurrent.TimeUnit;

import org.junit.After;
import org.junit.Before;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.Test;

public class Gmail {
WebDriver driver;

@Before
public void setup() {
System.setProperty("webdriver.chrome.driver","E://chromedriver.exe");
driver=new ChromeDriver();
driver.get("https://accounts.google.com/");
driver.manage().timeouts().implicitlyWait(300, TimeUnit.SECONDS);
}

@After
public void quit() {
driver.manage().deleteAllCookies();
driver.quit();
}

@Test()
public void login() {

WebElement txtUserName=driver.findElement(By.name("Email"));
txtUserName.sendKeys("abc@gmail.com");

WebElement txtPassword=driver.findElement(By.name("Passwd"));
txtPassword.sendKeys("abcd123");

WebElement btnLogin=driver.findElement(By.name ("signIn"));
btnLogin.submit();
}
}


Error:

FAILED: login
java.lang.NullPointerException
at gmail.Gmail.login(Gmail.java:33)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
at org.testng.TestRunner.privateRun(TestRunner.java:767)
at org.testng.TestRunner.run(TestRunner.java:617)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:335)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:330)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)
at org.testng.TestNG.run(TestNG.java:1057)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:204)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:175)


===============================================
Default test

Tests run: 1, Failures: 1, Skips: 0


Answer

Your test annotations does not belongs to TestNG.

Replace

@Before with @BeforeTest 
@After with @AfterTest 
@Test should point TestNG library