spring-boot-rest/java-strings/src/test/java/com/baeldung/string/tostring/CustomerWrapperCollectionToStringTest.java

package com.baeldung.string.tostring;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.util.ArrayList;
import java.util.List;

import org.junit.jupiter.api.Test;

public class CustomerWrapperCollectionToStringTest {
    private static final String CUSTOMER_WRAPPER_COLLECTION_TO_STRING 
      = "Customer [score=8, orders=[Book, Pen], fullname=Bhojwani, Rajesh, getFirstName()=Rajesh, getLastName()=Bhojwani]";
    	 
    @Test
    public void givenWrapperCollectionStrBuffer_whenToString_thenCustomerDetails() {
	CustomerWrapperCollectionToString customer = new CustomerWrapperCollectionToString();
	customer.setFirstName("Rajesh");
	customer.setLastName("Bhojwani");
	customer.setScore(8);
	
	List<String> orders = new ArrayList<String>();
	orders.add("Book");
	orders.add("Pen");
	customer.setOrders(orders);
	
	StringBuffer fullname = new StringBuffer();
	fullname.append(customer.getLastName()+", "+ customer.getFirstName());
	customer.setFullname(fullname);
	
	assertEquals(CUSTOMER_WRAPPER_COLLECTION_TO_STRING, customer.toString());
    }

}