InvoiceNumberGeneratorTest.java

package org.businessmanager.service;

import java.util.Calendar;

import junit.framework.Assert;

import org.businessmanager.domain.Invoice;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.transaction.TransactionConfiguration;
import org.springframework.transaction.annotation.Transactional;

@ContextConfiguration("/test-context.xml")
@RunWith(SpringJUnit4ClassRunner.class)
@TransactionConfiguration(defaultRollback = true)
@Transactional
public class InvoiceNumberGeneratorTest {

	@Autowired
	private InvoiceNumberGenerator generator;
	
	@Autowired
	private InvoiceService invoiceService;
	
	@Test
	public void testDefaultNumber() {
		Long number = generator.getNextInvoiceNumber();
		Assert.assertEquals(Long.valueOf(100000), number);
	}
	
	@Test
	public void testNumberGenerator() {
		Invoice invoice = new Invoice(Calendar.getInstance());
		invoiceService.saveInvoice(invoice);
		
		Long nextInvoiceNumber = generator.getNextInvoiceNumber();
		Assert.assertEquals(Long.valueOf(100001), nextInvoiceNumber);
	}
}