I am having issue running the below Page Object Model with testng.
TestClass 1
package Proj;
public class signInPage {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver", "C:/chromedriver_win32/chromedriver.exe");
ChromeDriver driver = new ChromeDriver();
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
}
public signInPage (WebDriver driver)
{
this.driver=driver;
}
WebDriver driver;
public signInPage()
{
driver.get("baseURL");
}
By Email_address = By.name("Username");
By Password = By.id("Password");
public WebElement Email_address ()
{
return driver.findElement(Email_address);
}
public WebElement Password ()
{
return driver.findElement(Password);
}
public WebElement button_id ()
{
return driver.findElement(button_id);
}
}
TestClass 2
package Proj;
public class MyDetailsPage {
public MyDetailsPage (WebDriver driver)
{
this.driver=driver;
}
WebDriver driver;
By My_Details=By.xpath(".//*[#id='masterForm']/div[5]/div/div[3]/div[3]/a/span");
By First_name = By.id("FirstName");
By Last_name= By.name("NameModel.LastName");
By button_id= By.id("stage_one_button");
public WebElement My_Details ()
{
return driver.findElement(My_Details);
}
public WebElement First_name ()
{
return driver.findElement(First_name);
}
public WebElement Last_name ()
{
return driver.findElement(Last_name);
}
}
TestData Page
package Proj;
public class testData {
public static void main (String[] args) throws InterruptedException {
System.setProperty("webdriver.chrome.driver", "C:/chromedriver_win32/chromedriver.exe");
ChromeDriver driver = new ChromeDriver();
}
public void testDetails (WebDriver driver)
{
this.driver=driver;
}
static WebDriver driver;
protected static String baseUrl;
protected static String Email_address;
protected static String Password;
protected String First_name;
protected String Last_name;
public void Data () {
baseUrl = "https://login.yahoo.com/";
driver = new ChromeDriver();
Email_address = "myname#yahoo.com";
Password = "myname";
First_name = "Testing";
Last_name = "Account";
}
}
TestCases
package Proj;
import org.testng.annotations.Test;
import org.openqa.selenium.SearchContext;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeSuite;
public class TestCases extends testData {
private static SearchContext WebElement;
#BeforeSuite
public void BeforeSuite () {
System.setProperty("webdriver.chrome.driver", "C:/chromedriver_win32/chromedriver.exe");
WebDriver driver = new ChromeDriver ();
}
#BeforeClass
public void driver(WebDriver driver) throws InterruptedException
{
this.driver = driver;
driver.get(baseUrl);
}
#Test
public void AllTest () throws InterruptedException {
signInPage a = new signInPage (driver);
a.Email_address().sendKeys(Email_address);
a.Password().sendKeys(Password);
a.SIGN_IN().click();
MyDetailsPage e = new MyDetailsPage (driver);
e.My_Details ().click();
e.First_name ().sendKeys("Testing");
e.Last_name (). sendKeys ("Account");
e.button_id ().click();
}
}
It opens up Browser but fail to enter baseUrl and could not perform the Test. It is failing from the TestCases class. No matter how i have tried to reconfigure this with no luck. I appreciate your prompt assistance. Thank you
FAILED CONFIGURATION: #BeforeClass driver
org.testng.TestNGException:
Can inject only one of <ITestContext, XmlTest> into a BeforeClass annotated driver.
For more information on native dependency injection please refer to http://testng.org/doc/documentation-main.html#native-dependency-injection
at org.testng.internal.Parameters.checkParameterTypes(Parameters.java:244)
at org.testng.internal.Parameters.createParameters(Parameters.java:172)
at org.testng.internal.Parameters.createParameters(Parameters.java:458)
at org.testng.internal.Parameters.createConfigurationParameters(Parameters.java:118)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:206)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:146)
at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:166)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:105)
at org.testng.TestRunner.privateRun(TestRunner.java:744)
at org.testng.TestRunner.run(TestRunner.java:602)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
at org.testng.SuiteRunner.run(SuiteRunner.java:289)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)
at org.testng.TestNG.runSuites(TestNG.java:1144)
at org.testng.TestNG.run(TestNG.java:1115)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)
SKIPPED: AllTest
org.testng.TestNGException:
Can inject only one of <ITestContext, XmlTest> into a BeforeClass annotated driver.
For more information on native dependency injection please refer to http://testng.org/doc/documentation-main.html#native-dependency-injection
at org.testng.internal.Parameters.checkParameterTypes(Parameters.java:244)
at org.testng.internal.Parameters.createParameters(Parameters.java:172)
at org.testng.internal.Parameters.createParameters(Parameters.java:458)
at org.testng.internal.Parameters.createConfigurationParameters(Parameters.java:118)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:206)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:146)
at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:166)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:105)
at org.testng.TestRunner.privateRun(TestRunner.java:744)
at org.testng.TestRunner.run(TestRunner.java:602)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
at org.testng.SuiteRunner.run(SuiteRunner.java:289)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)
at org.testng.TestNG.runSuites(TestNG.java:1144)
at org.testng.TestNG.run(TestNG.java:1115)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)
===============================================
Default test
Tests run: 1, Failures: 0, Skips: 1
Configuration Failures: 1, Skips: 0
===============================================
===============================================
Default suite
Total tests run: 1, Failures: 0, Skips: 1
Configuration Failures: 1, Skips: 0
===============================================
public void driver(WebDriver driver) is not allowed on a #BeforeClass method. You have to remove the parameter and find another way to set the driver.
As juherr pointed out that you can not parameterize the #BeforeClass in this manner by passing webdriver instead you can follow following approach to do so:
public class TestCases extends testData {
private static SearchContext WebElement;
WebDriver driver;
#BeforeSuite
public void BeforeSuite () throws InterruptedException {
System.setProperty("webdriver.chrome.driver", "C:\\Eclipse\\Selenium\\chromedriver.exe");
}
#BeforeClass
public void driver() throws InterruptedException
{
driver = new ChromeDriver ();
testData td = new testData ();
driver.get(td.baseUrl);
}
/
/
/
/
Related
I am using webdrivermanager with driver call.
But it retains the pom pattern and is difficult to construct in parallel using the threadlocal class.
My module is structured as below.
Some of my code.
Driver class
public class Driver {
public WebDriver setDriver(WebDriver driver, String browser, String lang) throws Exception {
if (browser.contains("Chrome")) {
ChromeOptions options = new ChromeOptions();
WebDriverManager.chromedriver().clearResolutionCache().clearDriverCache().setup();
}
options.addArguments(lang);
driver = new ChromeDriver(options);
Capabilities cap = ((RemoteWebDriver) driver).getCapabilities();
} else {
WebDriverManager.iedriver().clearResolutionCache().clearDriverCache().setup();
}
driver.manage().window().maximize();
driver.manage().deleteAllCookies();
return driver;
}
}
Next Pageclass
public class LoginPage{
private WebDriver driver;
#CacheLookup
#FindBy(id = "j_domain")
public static WebElement domainField;
#CacheLookup
#FindBy(id = "j_username")
public static WebElement usernameField;
#CacheLookup
#FindBy(id = "j_password")
public static WebElement passwordField;
public LoginPage(WebDriver driver) {
this.driver = driver;
PageFactory.initElements(driver,this);
}
}
Next Base testclass :
public class BaseTest {
public WebDriver driver;
public LoginPage loginPage;
#Parameters({"browser"})
#BeforeClass
public void Setup(ITestContext context, String browsertype) throws Exception {
pageFactory.driver.Driver driversetting = new pageFactory.driver.Driver();
driver = driversetting.setDriver(driver, browsertype, "lang=ko_KR");
context.setAttribute("webDriver", driver);
loginPage = new LoginPage(driver);
}
}
Next testclass
public class Remotepc_Center extends BaseTest {
#Test(priority = 1, enabled = true)
public void a1(Method method) throws Exception {
}
}
Using threadlocal I want sessions to be configured independently and tests running in parallel.
You would need to follow the below sugggestions/recommendations in order for you to be able to work with Page Object Model and thread local variables, please do the following:
Make use of a library such as autospawn to handle the webdriver instances backed by thread local variables.
Make sure that you create Page Objects only within your test methods because that's the only place wherein your thread local variables would have a webdriver that can be accessed by the test method as well. Querying the thread local variable for retrieving the webdriver instance from within a configuration method such as #BeforeClass (in the testng world) is going to give you a different thread.
In TestNG context, only a #BeforeMethod, #Test and a #AfterMethod are guaranteed to run in the same thread.
For additional details on how to work with a thread local variable, you can perhaps refer to my blog
For the sake of completeness, including relevant code snippets for the thread local creation.
Define a factory that can create webdriver instances as below
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;
class LocalDriverFactory {
static WebDriver createInstance(String browserName) {
WebDriver driver = null;
if (browserName.toLowerCase().contains("firefox")) {
driver = new FirefoxDriver();
return driver;
}
if (browserName.toLowerCase().contains("internet")) {
driver = new InternetExplorerDriver();
return driver;
}
if (browserName.toLowerCase().contains("chrome")) {
driver = new ChromeDriver();
return driver;
}
return driver;
}
}
Define a driver manager class that looks like below:
import org.openqa.selenium.WebDriver;
public class LocalDriverManager {
private static ThreadLocal<WebDriver> webDriver = new ThreadLocal<WebDriver>();
public static WebDriver getDriver() {
return webDriver.get();
}
static void setWebDriver(WebDriver driver) {
webDriver.set(driver);
}
}
Define a TestNG listener that looks like below
import org.openqa.selenium.WebDriver;
import org.testng.IInvokedMethod;
import org.testng.IInvokedMethodListener;
import org.testng.ITestResult;
public class WebDriverListener implements IInvokedMethodListener {
#Override
public void beforeInvocation(IInvokedMethod method, ITestResult testResult) {
if (method.isTestMethod()) {
String browserName = method.getTestMethod().getXmlTest().getLocalParameters().get("browserName");
WebDriver driver = LocalDriverFactory.createInstance(browserName);
LocalDriverManager.setWebDriver(driver);
}
}
#Override
public void afterInvocation(IInvokedMethod method, ITestResult testResult) {
if (method.isTestMethod()) {
WebDriver driver = LocalDriverManager.getDriver();
if (driver != null) {
driver.quit();
}
}
}
}
A typical test case would now look like below:
import org.testng.annotations.Test;
public class ThreadLocalDemo {
#Test
public void testMethod1() {
invokeBrowser("http://www.ndtv.com");
}
#Test
public void testMethod2() {
invokeBrowser("http://www.facebook.com");
}
private void invokeBrowser(String url) {
System.out.println("Thread " + Thread.currentThread().getId());
System.out.println("HashcodeebDriver instance = " +
LocalDriverManager.getDriver().hashCode());
LocalDriverManager.getDriver().get(url);
}
}
I am getting java.lang.NullPointerException when I run the testcase in Eclipse. Can somebody help me in pointing out the error I have made.
Error # Line 17: WebElement in LoginPage.Java.
# Line 12: LoginPage in TC_LoginTest_001.java.
**LoginPage.Java**
package com.internetBanking.pageObjects;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
public class LoginPage {
WebDriver driver;
public LoginPage (WebDriver driver) {
this.driver = driver;
}
WebElement usrname = driver.findElement(By.name("uid"));
WebElement pwd = driver.findElement(By.name("password"));
WebElement login = driver.findElement(By.name("btnLogin"));
public void setUsrname(String uname) {
usrname.sendKeys(uname);
}
public void setPwd(String pswd) {
pwd.sendKeys(pswd);
}
public void login() {
login.click();
}
}
**TC_LoginTest_001.java**
package com.internetBanking.testCases;
import org.testng.annotations.Test;
import com.internetBanking.pageObjects.LoginPage;
public class TC_LoginTest_001 extends BaseClass {
#Test
public void LoginTest() {
driver.get(baseURL);
logger.info("URL is opened");
LoginPage loginPage = new LoginPage(driver);
loginPage.setUsrname(username);
logger.info("Username is entered");
loginPage.setPwd(password);
logger.info("Password is entered");
loginPage.login();
logger.info("Login button is clicked");
}
}
When I run the test case, I am getting the below errors:
java.lang.NullPointerException
at com.internetBanking.pageObjects.LoginPage.(LoginPage.java:17)
at com.internetBanking.testCases.TC_LoginTest_001.LoginTest(TC_LoginTest_001.java:12)
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:124)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:583)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:989)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.privateRun(TestRunner.java:648)
at org.testng.TestRunner.run(TestRunner.java:505)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
at org.testng.SuiteRunner.run(SuiteRunner.java:364)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
at org.testng.TestNG.runSuites(TestNG.java:1049)
at org.testng.TestNG.run(TestNG.java:1017)
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)
Consider this code:
public class MainTest {
public static void main(String[] args) {
new Test(new Object());
}
}
class Test {
InitMe initMe = new InitMe();
public Test(Object o){
System.out.println("Test instance has been created");
}
}
class InitMe{
public InitMe(){
System.out.println("Init me instance has been created");
}
}
If you run it you will see the following output:
Init me instance has been created
Test instance has been created
which means that fields are initialized before the constructor is executed. So in your case you have the following structure:
public class MainTest {
public static void main(String[] args) {
new Test(new Object());
}
}
class Test {
Object o;
String oStr = o.toString();
public Test(Object o){
this.o = o;
}
}
where your fields are initialized through the reference that has not been yet initialized itself (because the constructor has not yet been called).
Your particular solution would be to change this:
WebDriver driver;
public LoginPage (WebDriver driver) {
this.driver = driver;
}
WebElement usrname = driver.findElement(By.name("uid"));
WebElement pwd = driver.findElement(By.name("password"));
WebElement login = driver.findElement(By.name("btnLogin"));
to this:
WebDriver driver;
WebElement usrname;
WebElement pwd;
WebElement login;
public LoginPage (WebDriver driver) {
this.driver = driver;
usrname = driver.findElement(By.name("uid"));
pwd = driver.findElement(By.name("password"));
login = driver.findElement(By.name("btnLogin"));}
}
TestBase Class:-
public class TestBase {
public static WebDriver driver;
public static Properties prop;
// TestBase class constructor is used to initialize the properties object to
// fetch config variables from config.properties file.
public TestBase() {
try {
// File src = new File("./src/main/java/com/config/config.properties");
File src = new File(".\\src\\main\\java\\com\\config\\config.properties");
FileInputStream fs = new FileInputStream(src);
prop = new Properties();
prop.load(fs);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void initialization() throws InterruptedException {
String browserName = prop.getProperty("Browser");
if (browserName.equals("chrome")) {
System.setProperty("webdriver.chrome.driver", "C:\\Selenium\\chromedriver_win32\\chromedriver.exe");
driver = new ChromeDriver();
} else {
System.out.println("Oops! Exception has Caught");
}
driver.manage().window().maximize();
driver.get(prop.getProperty("URL"));
}
}
HomePage Class:-
public class HomePage extends TestBase {
TestUtil testUtil;
#FindBy(xpath = "//a[#title='Update your profile, personal settings, and more']")
WebElement updateProfile;
#FindBy(xpath = "//a[#title='Create a New Post']")
WebElement createNewPost;
#FindBy(xpath="(//span[#class='count'])[2]")
WebElement drafts;
#FindBy(xpath="//a[#class='button masterbar__recent-drafts-see-all is-compact is-borderless']")
WebElement seeAll;
public HomePage() {
PageFactory.initElements(driver, this);
}
public ProfilePage updateYourProfile() throws AWTException, InterruptedException {
updateProfile.click();
Thread.sleep(3000);
return new ProfilePage();
}
public NewPostPage createNewPost() throws InterruptedException {
createNewPost.click();
Thread.sleep(3000);
return new NewPostPage();
}
public DraftsPage draftsPage() throws InterruptedException {
createNewPost.click();
Thread.sleep(3000);
drafts.click();
Thread.sleep(3000);
seeAll.click();
Thread.sleep(3000);
return new DraftsPage();
}
}
DraftsPage Class:-
public class DraftsPage extends TestBase {
#FindBy(xpath="(//button[#title='Toggle menu'])[1]")
WebElement toggleMenu;
#FindBy(xpath="(//button[#role='menuitem'])[2]")
WebElement trash;
public void toggleMenu() throws InterruptedException {
toggleMenu.click();
Thread.sleep(3000);
trash.click();
Thread.sleep(3000);
}
}
DraftsPageTest Class:-
public class DraftsPageTest extends TestBase {
ProfilePage myProfile;
LoginPage loginpage;
HomePage homepage;
NewPostPage newPostPage;
DraftsPage draftspage;
public DraftsPageTest() {
super();
}
#BeforeMethod
public void setUp() throws InterruptedException {
initialization();
loginpage = new LoginPage();
loginpage.login();
Thread.sleep(3000);
loginpage.userName(prop.getProperty("username"));
Thread.sleep(3000);
homepage = loginpage.password(prop.getProperty("password"));
Thread.sleep(3000);
myProfile = new ProfilePage();
Thread.sleep(3000);
newPostPage = new NewPostPage();
Thread.sleep(3000);
draftspage = new DraftsPage();
Thread.sleep(3000);
}
#Test
public void DraftsPageTest() throws InterruptedException {
homepage.draftsPage();
Thread.sleep(3000);
draftspage.toggleMenu();
Thread.sleep(3000);
}
#AfterMethod
public void close() {
driver.close();
}
}
Error Message:-
FAILED: DraftsPageTest
java.lang.NullPointerException
at com.pages.DraftsPage.toggleMenu(DraftsPage.java:18)
at com.testCases.DraftsPageTest.DraftsPageTest(DraftsPageTest.java:51)
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:124)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:583)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:719)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:989)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.privateRun(TestRunner.java:648)
at org.testng.TestRunner.run(TestRunner.java:505)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
at org.testng.SuiteRunner.run(SuiteRunner.java:364)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
at org.testng.TestNG.runSuites(TestNG.java:1049)
at org.testng.TestNG.run(TestNG.java:1017)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Description:-
I am trying to develop TestNG Framework with the help of Selenium.
I have developed HomePage, LoginPage, ProfilePage, NewPostPage, DraftsPage. While I was running the DraftsPageTest.java, #BeforeMethod was working fine
and the moment control comes to #Test, homepage.draftsPage(); is also working fine. But the moment control comes to draftspage.toggleMenu(); it is throwing
java.lang.NullPointerException.
Any help will be highly appreciated.
Thanks in advance:)
There's a bug in your code.
Please add a constructor which calls PageFactory.initElements(driver, this); to your com.pages.DraftsPage class [ similar to the HomePage constructor in your shared code ]. That should fix the problem.
The reason behind the NullPointerException is because, there's no call to PageFactory.initElements() the WebElement toggleMenu is not being initialised.
I'm trying to run a script via testNG. But getting java.lang.NullPointerException. I have put in the driver initialisation code in BeforeMethod and rest of the code under Test. Please let me know what's wrong in my script due which Im getting the error.Thanks in Advance.
My Script:
public class NewTest {
WebDriver driver = null;
#BeforeMethod
public void beforeMethod() {
System.setProperty("webdriver.chrome.driver", Constants.Chrome_Driver);
WebDriver driver = new ChromeDriver();
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
driver.get("http://" + Constants.auth_Username + ":" + Constants.auth_Password + "#" + Constants.URL);
}
#Test
public void f() throws InterruptedException {
actions.Admin_Login.txbx_aUsername(driver).sendKeys(Constants.aUsername);
actions.Admin_Login.txbx_aPassword(driver).sendKeys(Constants.aPassword);
actions.Admin_Login.btn_login(driver).click();
actions.create(driver).click();
Actions action = new Actions(driver);
action.moveToElement(actions.create.list(driver)).build().perform();
actions.create_list.list_category(driver).click();
actions.create_list.list_ceate_category(driver).click();
actions.create_list.txtbx_Cat_tile(driver).sendKeys(Constants.list_title);
actions.create_list.btn_Cat_Save(driver).click();
System.out.println("List Created Successfully");
}
}
I am using PageObjects to get the data. This script is running fine without testNG. But when I convert the test into testNG and execute, it throws error.
Error I am facing:
java.lang.NullPointerException
at actions.Admin_Login.txbx_aUsername(Admin_Login.java:13)
at testScripts.NewTest.f(NewTest.java:43)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:580)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:716)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:988)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.privateRun(TestRunner.java:648)
at org.testng.TestRunner.run(TestRunner.java:505)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
at org.testng.SuiteRunner.run(SuiteRunner.java:364)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
at org.testng.TestNG.runSuites(TestNG.java:1049)
at org.testng.TestNG.run(TestNG.java:1017)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
Constants Class :
public class Constants {
public static final String URL_Shika = "url";
public static final String list_Title = "Test";
public static final String aUsername = "Test";
public static final String aPassword = "abcd123";
public static final String uUsername = "Test01";
public static final String uPassword = "abcd123";
public static final String vUsername = "test321";
public static final String vPassword = "abcd123";
public static final String auth_Username = "admin";
public static final String auth_Password = "admin#123";
public static final String FF_Driver = "/path/geckodriver";
public static final String Chrome_Driver = "/path/chromedriver";
}
Action Class:
public class Admin_Login {
private static WebElement element = null;
public static WebElement txbx_aUsername (WebDriver driver) {
element = driver.findElement(By.id("username"));
return element;
}
public static WebElement txbx_aPassword (WebDriver driver) {
element = driver.findElement(By.id("password"));
return element;
}
}
The driver object you are initialising in #BeforeMethod is not visible in your test method. Try following:
public class NewTest {
WebDriver driver = null;
#BeforeMethod
public void beforeMethod() {
System.setProperty("webdriver.chrome.driver", Constants.Chrome_Driver);
//Pay close attention this below line. Notice how we are not creating a new WebDriver variable
//but we are just initialising the class level data member here
driver = new ChromeDriver();
driver.manage().window().maximize();
driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
driver.get("http://" + Constants.auth_Username + ":" + Constants.auth_Password + "#" + Constants.URL);
}
#Test
public void f() throws InterruptedException {
Admin_Login.txbx_aUsername(driver).sendKeys(Constants.aUsername);
Admin_Login.txbx_aPassword(driver).sendKeys(Constants.aPassword);
Admin_Login.btn_login(driver).click();
actions.create(driver).click();
Actions action = new Actions(driver);
action.moveToElement(actions.create.list(driver)).build().perform();
//Create a Course Category
actions.create_list.list_category(driver).click();
actions.create_list.list_ceate_category(driver).click();
actions.create_list.txtbx_Cat_tile(driver).sendKeys(Constants.list_title);
actions.create_list.btn_Cat_Save(driver).click();
System.out.println("List Created Successfully");
}
}
Please try to wait for the text box to appear, before entering any data using following code:
public static WebElement txbx_aUsername (WebDriver driver) {
WebDriverWait w = new WebDriverWait(driver, 30);
w.until(ExpectedConditions.visibilityOfElementLocated(By.id("username")));
return driver.findElement(By.id("username"));
}
Let me know, if you still face any issue.
Selenium pageFactory NullPointerException. Any help will be appreciated. It works for the login of setUp(), but after that driver comes up null.
public class TestBase {
public WebDriver driver;
String url = PropertiesFile.readPropertiesFile("autUrl");
public WebDriver getDriver() {
System.setProperty("webdriver.chrome.driver",
System.getProperty("user.dir") + "/driver/chromedriver.exe");
driver = new ChromeDriver();
return driver;
}
public void getUrl(String url) {
driver.get(url);
driver.manage().window().maximize();
}
public void init() {
getDriver();
getUrl(url);
}
}
public class LogInPage extends TestBase {
WebDriver driver;
#FindBy(id = "loginEmail")public WebElement userName_field;
#FindBy(name = "password")public WebElement password_field;
#FindBy(xpath = "//*[#id='main-content']/aside/div/form/input[2]")public WebElement SignMeIn_btn;
public LogInPage(WebDriver driver) {
this.driver = driver;
PageFactory.initElements(driver, this);
}
// Login
public void logIn(String userName, String password) {
userName_field.sendKeys(userName);
password_field.sendKeys(password);
SignMeIn_btn.click();
}
}
public class LogIn extends TestBase {
LogInPage logInPage;
private String user = PropertiesFile.readPropertiesFile("user");
private String password = PropertiesFile.readPropertiesFile("password");
public LogIn(WebDriver driver) {
this.driver = driver;
}
public void setUp(){
init();
}
public void logIn(){
logInPage = new LogInPage(driver);
logInPage.logIn(user, password);
}
}
public class PortalsPage extends TestBase {
WebDriver driver;
#FindBy(id = "loginEmail") public WebElement userName_field;
#FindBy(xpath=".//*[#id='tabDetail']") public WebElement tenantPage_li;
#FindBy(id="tabDetail") public WebElement ownerPage_li;
#FindBy(xpath="//a[contains(#href,'tenant.action')]") public WebElement tenantPortal_link;
#FindBy(xpath="//a[contains(#href,'owner.action')]") public WebElement ownerPortal_link;
public PortalsPage(WebDriver driver){
this.driver = driver;
PageFactory.initElements(driver, this);
}
public void goToPortals(){
userName_field.sendKeys("a");
tenantPage_li.click();
}
}
public class Portals extends TestBase {
PortalsPage portals;
WebDriver driver;
#BeforeClass
public void setUp(){
LogIn login = new LogIn(driver);
login.setUp();
login.logIn();
}
#Test
public void goToPortal(){
portals = new PortalsPage(driver);
portals.goToPortals();
}
}
Following exception I got:
FAILED: goToPortal java.lang.NullPointerException at
org.openqa.selenium.support.pagefactory.DefaultElementLocator.findElement(DefaultElementLocator.java:69)
at
org.openqa.selenium.support.pagefactory.internal.LocatingElementHandler.invoke(LocatingElementHandler.java:38)
at com.sun.proxy.$Proxy6.sendKeys(Unknown Source) at
com.demo.pages.PortalsPage.goToPortals(PortalsPage.java:30) at
com.demo.control.Portals.goToPortal(Portals.java:28) 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:80)
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:334) at
org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329) 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:1198) at
org.testng.TestNG.runSuitesLocally(TestNG.java:1123) at
org.testng.TestNG.run(TestNG.java:1031) at
org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:132)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:230)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:76)
Your current approach seems to be a bit convoluted. But without delving into the details of what other approach you can use to fix your overall design, here's a cleaned up version of your code, that should work.
The idea here is that you only need page classes (the ones that end with *Page which represent a particular page, and exposes some business functions that can be executed on that particular page) and test classes, with the test class themselves extending from your TestBase
So here are the classes
LoginPage.java
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.FindBy;
import org.openqa.selenium.support.PageFactory;
public class LogInPage {
#FindBy(id = "loginEmail")
private WebElement userNameTextField;
#FindBy(name = "password")
private WebElement passwordTextField;
#FindBy(xpath = "//*[#id='main-content']/aside/div/form/input[2]")
private WebElement signInButton;
public LogInPage(WebDriver driver) {
PageFactory.initElements(driver, this);
}
public void logIn(String userName, String password) {
userNameTextField.sendKeys(userName);
passwordTextField.sendKeys(password);
signInButton.click();
}
}
PortalsPage.java
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.FindBy;
import org.openqa.selenium.support.PageFactory;
public class PortalsPage {
#FindBy(id = "loginEmail")
private WebElement usernameTextField;
#FindBy(xpath = ".//*[#id='tabDetail']")
private WebElement tenantPage;
#FindBy(id = "tabDetail")
private WebElement ownerPage;
#FindBy(xpath = "//a[contains(#href,'tenant.action')]")
private WebElement tenantPortalLink;
#FindBy(xpath = "//a[contains(#href,'owner.action')]")
private WebElement ownerPortalLink;
public PortalsPage(WebDriver driver) {
PageFactory.initElements(driver, this);
}
public void goToPortals() {
usernameTextField.sendKeys("a");
tenantPage.click();
}
}
TestBase.java
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
public class TestBase {
private WebDriver driver;
protected WebDriver getDriver() {
if (driver != null) {
return driver;
}
System.setProperty("webdriver.chrome.driver", System.getProperty("user.dir") + "/driver/chromedriver.exe");
driver = new ChromeDriver();
return driver;
}
public void getUrl(String url) {
getDriver().get(url);
getDriver().manage().window().maximize();
}
}
PortalsTest.java
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
public class PortalsTest extends TestBase {
private PortalsPage portals;
private String user = PropertiesFile.readPropertiesFile("user");
private String password = PropertiesFile.readPropertiesFile("password");
private String url = PropertiesFile.readPropertiesFile("autUrl");
#BeforeClass
public void setUp() {
LogInPage login = new LogInPage(getDriver());
getUrl(url);
login.logIn(user, password);
}
#Test
public void goToPortal() {
portals = new PortalsPage(getDriver());
portals.goToPortals();
}
}