In Inheritance method the Child class not receiving the URL from the Parent class-CodePudding

This is Parent Class to run the ChromeDriver.

 package logInCredit;
 
 import org.openqa.selenium.WebDriver;
 import org.openqa.selenium.chrome.ChromeDriver;

 public class  LogInPage  {

 public WebDriver driver ;

 public void LogInCredit() {


 //Open ChromeDriver    
 WebDriver driver= new ChromeDriver();
 driver.get("https://opensource-demo.orangehrmlive.com/");
 driver.manage().window().maximize();
 System.out.println(driver);


 }

 }

This Is Child Class which takes the url from Parent Class

 package afterLogIn;


 import org.openqa.selenium.By;
 import org.openqa.selenium.WebElement;
 import org.testng.annotations.Test;
 import logInCredit.LogInPage;


 public class NextLogIn extends LogInPage {


    @Test
    public void DashboardPage() {
    
    
    System.out.println("driver is "  driver);
    
    
    //Admin UserName Enter
    WebElement AdminUserName = 
    driver.findElement(By.xpath("//input[@name='txtUsername']"));
    AdminUserName.sendKeys("Admin");
    
    //Admin Password Enter
    WebElement AdminPassword = 
    driver.findElement(By.xpath("//input[@name='txtPassword']"));
    AdminPassword.sendKeys("admin123");
    
    //click Login
    WebElement LogInButton = driver.findElement(By.xpath("//input[@id='btnLogin']"));
    LogInButton.click();
    
    
    WebElement ClickAdmin = driver.findElement(By.xpath("//*[text()='Admin']"));
    ClickAdmin.click();
    
    
    WebElement ClickPIM = driver.findElement(By.xpath("//*[text()='PIM']"));
    ClickPIM.click();
}
    
}

This is my testng.xml file

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite name="Suite">
<test name="After Login Test">
   <classes>
      <class name="afterLogIn.NextLogIn"/>  
   </classes>
</test> <!-- Test -->
</suite> <!-- Suite -->

While running the program I get the Exception

[RemoteTestNG] detected TestNG version 7.4.0
driver is null
FAILED: DashboardPage
java.lang.NullPointerException
at afterLogIn.NextLogIn.DashboardPage(NextLogIn.java:22)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

The Webdriver url from the parent class is not passing to the child class. Is their any Issues with my code. When I run the parent class with main method it navigate the browser to the url but when I call from the child class it not giving the same url.

CodePudding user response：

the class member driver is not instantiated, in the method logInCreated() in the parent class you are using another object reference ( not the class member ).

in the LoginPage add a no arg constructor in wich you instntialize driver

public LoginPage(){ driver = new ChromeDriver(); }

and in the method LogInCredit() delete the line WebDriver driver= new ChromeDriver();