英文:
Getting a NullPointerException when trying a pom in Selenium
问题
试图从零开始创建一个Selenium页面对象模型（POM）框架。
类 1：包括登录，类 2：包括 ur ，类 - 执行所有内容。
我没有扩展任何文件。
在 css 方法处出现异常，不确定如何修复。
Class 1：
public class LOGIN {
WebDriver driver;
public LOGIN(WebDriver driver){
this.driver = driver;
}
public void facebook(){
System.setProperty("webdriver.chrome.driver", "C:\\Users\\Balu\\Desktop\\selenium\\chromedriver_win32\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("https://www.facebook.com/");
}
}
Class 2 :
public class Home {
WebDriver driver;
public Home(WebDriver driver){
this.driver = driver;
}
public void css(){
driver.manage().window().maximize();
}
}
Class 3 :
public class Test1 {
private static final WebDriver driver = null;
@Test
public void e2eflow(){
LOGIN lg = new LOGIN(driver);
Home hm = new Home(driver);
lg.facebook();
hm.css();
}
}
英文:
Trying to create and Selenium POM framework from scratch .
Class 1 :consist of login, class 2 consist of ur ,class- executing everything .
i am not extended any file
Getting exception at css method not sure how to rectify
Class 1 :
public class LOGIN {
WebDriver driver;
public LOGIN(WebDriver driver){
this.driver = driver;
}
public void facebook(){
System.setProperty("webdriver.chrome.driver", "C:\\Users\\Balu\\Desktop\\selenium\\chromedriver_win32\\chromedriver.exe");
WebDriver driver = new ChromeDriver();
driver.get("https://www.facebook.com/");
}
}
Class 2 :
public class Home {
WebDriver driver;
public Home(WebDriver driver){
this.driver = driver;
}
public void css(){
driver.manage().window().maximize();
}
}
Class 3 :
public class Test1 {
private static final WebDriver driver = null;
@Test
public void e2eflow(){
LOGIN lg = new LOGIN(driver);
Home hm = new Home(driver);
lg.facebook();
hm.css();
}
}
答案1
得分: 1
class LOGIN {
public static WebDriver driver;
public LOGIN(){
System.setProperty("webdriver.chrome.driver", "D:\\chromedriver.exe");
driver=new ChromeDriver();
}
public void facebook(){
driver.get("https://www.facebook.com/");
}
}
class Home extends LOGIN {
public void css(){
driver.manage().window().maximize();
}
}
class Test1 {
@Test
public void e2eflow(){
Home hm = new Home();
hm.facebook();
hm.css();
}
}
英文:
class LOGIN {
public static WebDriver driver;
public LOGIN(){
System.setProperty("webdriver.chrome.driver", "D:\\chromedriver.exe");
driver=new ChromeDriver();
}
public void facebook(){
driver.get("https://www.facebook.com/");
}
}
class Home extends LOGIN {
public void css(){
driver.manage().window().maximize();
}
}
class Test1 {
@Test
public void e2eflow(){
Home hm = new Home();
hm.facebook();
hm.css();
}
}
答案2
得分: 0
driver 在 Test1 中为 null，这就是你得到异常的原因。
英文:
driver is null in Test1, that's why you're getting the exception
答案3
得分: 0
driver = new ChromeDriver() 替代 null。
英文:
driver = new ChromeDriver() instead of null.
答案4
得分: 0
在您的测试类中，您将驱动程序声明为null。
由于您想要使用POM模式，我建议您参考这个教程：POM教程。
您可以拥有一个使用@BeforeTest标记的方法，在该方法中设置驱动程序，或者您可以在一个类中进行设置，并在所有测试类中进行扩展。
英文:
In your test classes you are declaring the driver as null.
As you want to use POM pattern, I suggest go trough this tutorial: POM tutorial
You can have a method marked with @BeforeTest where you are setting up your driver, or you can do it in a class and extend it in all test classes.
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