Как вызвать функцию/метод из одного класса в другой класс в веб-драйвере Selenium, используя Java ⇐ JAVA

[Anonymous]

Я хочу вызвать метод входа и поиска из двух разных классов в основной класс. Я написал два класса различий для входа в систему и поиска, но когда я вызываю оба метода в классе, содержащем основной метод. Это дает мне ошибку, как показано ниже>>

Исключение в потоке "main" java.lang.NullPointerException
at Test_package_Ted_baker.search.search_1(search.java:14)
at Test_package_Ted_baker.SHopping.main(SHopping.java:16)

Может кто-нибудь помочь мне найти решение о том, как вызывать методы из одного класса в другой класс. Мой код показан ниже>>
Основной класс
package Test_package_Ted_baker;

import org.openqa.selenium.WebDriver;

public class SHopping {
static WebDriver driver;
public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub
login_Ted_Baker obj=new login_Ted_Baker();
obj.login_to_Ted_Baker("email@example.com", "password");
System.out.println("Login sucessfully");
search obj1=new search();
obj1.search_1();
obj.user_logout();
System.out.println("User log out sucessfully");
}
}


Класс входа
package Test_package_Ted_baker;
import java.util.HashMap;
import java.util.Map;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;

public class login_Ted_Baker {
WebDriver driver;
public static void main (String [] args) throws InterruptedException
{
login_Ted_Baker obj=new login_Ted_Baker();
obj.login_to_Ted_Baker("email@example.com", "password");
System.out.println("Login Sucessfully");
obj.user_logout();
}

public void usename( String Username)
{
WebElement Username_TB=driver.findElement(By.name("j_username"));
Username_TB.sendKeys(Username);
}
public void password(String Password)
{
WebElement Password_TB=driver.findElement(By.name("j_password"));
Password_TB.sendKeys(Password);
}
public void submit()
{
driver.findElement(By.xpath(".//*[@id='command']/div/input ")).click();
}
public void login_Ted_Baker(WebDriver driver){

this.driver = driver;

}
public void user_logout() throws InterruptedException
{
Thread.sleep(1000);
WebElement Sign_in_link=driver.findElement(By.xpath(".//*[@id='page']/header/div/nav[1]/ul/li[3]/div/a"));
WebElement Sign_out_button=driver.findElement(By.xpath(".//*[@id='account']/ul/li[2]/a"));
Thread.sleep(1000);
Actions Act1=new Actions(driver);
Act1.moveToElement(Sign_in_link).click();
Act1.moveToElement(Sign_out_button).click().build().perform();
System.out.println("Logout sucessfully");
}
public void login_to_Ted_Baker(String Username,String Password) throws InterruptedException
{
System.setProperty("webdriver.chrome.driver","C:\\Chrome\\chromedriver_win32\\chromedriver.exe");
//System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.Jdk14Logger");
Thread.sleep(2000);
ChromeOptions options = new ChromeOptions();
Map prefs = new HashMap();
prefs.put("credentials_enable_service", false);
prefs.put("password_manager_enabled", false);
options.setExperimentalOption("prefs", prefs);
options.addArguments("start-maximized");
options.addArguments("disable-infobars");
driver = new ChromeDriver(options);
try{
driver.get("http://www.tedbaker.com/");
WebDriverWait wait = new WebDriverWait(driver, 40);
wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("html/body/div[3]/div[2]/div/div/ul/li[1]/a")));
if(driver.findElement(By.xpath("html/body/div[3]/div[2]/div/div/ul/li[1]/a")).isDisplayed())
{

driver.findElement(By.xpath("html/body/div[3]/div[2]/div/div/ul/li[1]/a")).click();
}
driver.findElement(By.xpath(".//*[@id='page']/header/div/nav[1]/ul/li[3]/div/a")).click();
Thread.sleep(2000);
this.usename(Username);
this.password(Password);
this.submit();
}catch(Exception e)
{
System.out.println(e.getMessage());
}
}
}


класс поиска
package Test_package_Ted_baker;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.interactions.Actions;
import org.openqa.selenium.support.ui.Select;

public class search {
WebDriver driver;
public void search_1() throws InterruptedException
{
WebElement Search_Item=driver.findElement(By.xpath("html/body/div[2]/header/div/nav[2]/section/ul[2]/li[1]/a/span[1]"));
Search_Item.click();
WebElement Seacrh_item_message=driver.findElement(By.id("search"));
WebElement Search_textbox=driver.findElement(By.xpath("html/body/div[2]/header/div/form/div[1]/ol/li[1]/input"));

Search_textbox.sendKeys("Watches");
driver.findElement(By.xpath("html/body/div[2]/header/div/form/div[1]/ol/li[2]/input")).click();
WebElement SearchResult_pagemessage=driver.findElement(By.xpath("html/body/div[2]/div/div/div[1]/div/h1"));
driver.findElement(By.xpath("html/body/div[2]/div/div/div[1]/div/div/div/span[1]")).click();

WebElement Item_Tobuy = driver.findElement(By.xpath("html/body/div[2]/div/div/div[2]/div[2]/div[1]/article/div[2]/header/div/h4/a"));
JavascriptExecutor jse1= (JavascriptExecutor)driver;
jse1.executeScript("window.scrollBy(0,400)", "");
Item_Tobuy.click();

driver.findElement(By.xpath("html/body/div[2]/div/div/div[2]/div[1]/section[2]/form/ol/li[2]/span/span/select")).click();
Select dropdown1=new Select(driver.findElement(By.id("qty")));
dropdown1.selectByVisibleText("1");
driver.findElement(By.id("qty")).click();
// driver.findElement(By.xpath("*[@classname='button add_to_cart major full_mobile colour_dark']/div[2]/div[1]/div/input[1]")).click();
// driver.findElement(By.xpath("//*[@id='add_to_cart_form']/div[2]/div[2]/a/span[1]/span[1]")).click();
driver.findElement(By.xpath("//input[contains(@class,'add_to_cart')]")).click();
Thread.sleep(1000);
Actions act=new Actions(driver);
WebElement My_cart_button=driver.findElement(By.xpath("html/body/div[2]/header/div/nav[2]/section/ul[2]/li[3]/a/span[2]"));
//WebElement My_cart_button=driver.findElement(By.xpath("//input[contains(@class,'My bag')]"));
WebElement View_bag_checkout_button=driver.findElement(By.xpath("html/body/div[2]/header/div/nav[2]/section/ul[2]/li[3]/div/ul/li/a"));

act.moveToElement(My_cart_button).moveToElement(View_bag_checkout_button).click().build().perform();
driver.findElement(By.xpath("html/body/div[2]/div/div/div/section/table/tbody/tr/td[2]/form/ul/li[2]/a")).click();
String Cart_empty_mesg=driver.findElement(By.xpath("html/body/div[1]/div/div/div/header/h1")).getText();
System.out.println(Cart_empty_mesg);
String Actual_cart_empty_msg="Your shopping bag is empty";
if(Cart_empty_mesg==Actual_cart_empty_msg)
{
System.out.println("Cart is empty, you can add product cart");
}

}
}


Подробнее здесь: https://stackoverflow.com/questions/452 ... m-webdrive