Question

public class Base 
{
    public WebDriver driver;

    @BeforeMethod 
    public void setUp()
    {
        driver = new FirefoxDriver();
    }

}

public class useFunction extends Base
{

    public useFunction(WebDriver driver)
    {
        this.driver = driver;
    }

    public void func1()
    {
        driver.findElement().click();  //driver is null
        --------
        ---------
    }
}

Public class Test extends Base
{
    useFunction funObj = new useFunction(driver);
    @Test
    public void testMethod1()
   {
       funObj.func1();
       ----
       ------ 

  }
}

如何在UseFunction class中使用WebDriver实例的初始化值，而不将Webdriver实例声明为静态。当我在UseFunction class的构造函数中传递驱动程序时创建它Test class内的对象，获取空指针异常

Answer 1

在基类构造函数中初始化Web驱动程序并在Test类中扩展Base类，然后将驱动程序分配给Base.driver。

尝试以下代码

基类：

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

public class Base 
{
public WebDriver driver;

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

UseFunction类：

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;

public class useFunction
 {
     WebDriver driver;

  public useFunction(WebDriver driver)
  {
    this.driver = driver;
  }

  public void func1()
  {
    driver.findElement(By.id("id of the element")).click(); 
  }
  }

Test1课程：

import org.testng.annotations.Test;

public class Test1{

@Test
public void testMethod1()
{
    Base base = new Base();
    useFunction funObj = new useFunction(base.driver);
    funObj.func1(); 

}
}

尝试一下，让我知道它是否适合你

如何使用从Base类初始化的Webdriver实例到子类java

1 个答案: