但是我们也只在业务层使用UnitTest,因为显示层至今没有什么好的UnitTest方法,而我们的业务逻辑又严格封装在业务层,Controler层只做个组装分派的基本动作,没必要花大力气去测试。
在Spring下的测试很简单,写一个父类执行ApplicationContext的载入,并用DbUnit负责测试前后的数据备份和恢复。而子类可以通过成员变量控制父类的行为。
源码如下:
public class DAOTestCase extends TestCase { protected ClassPathXmlApplicationContext ctx; protected String[] contextFiles = null; protected DatabaseConnection dbunitConn; protected boolean needBackup = false; protected String xmlFilePath = null; protected String[] tableNames = null; public void setUp() throws Exception { if(contextFiles==null) { contextFiles = new String[]{"applicationContext-Hibernate.xml"; } this.ctx = new ClassPathXmlApplicationContext(contextFiles); DbUtil dbUtil = new DbUtil(ctx); dbunitConn = new DatabaseConnection(dbUtil.getConn(), "LH"); if (needBackup) { if (xmlFilePath == null) xmlFilePath = "test/dbunitData/myTestData.xml"; if (tableNames != null) { ITableFilter filter = new DatabaseSequenceFilter(dbunitConn, tableNames); IDataSet dataset = new FilteredDataSet(filter, dbunitConn.createDataSet()); File f_file = new File(xmlFilePath); new File(f_file.getParent()).mkdirs(); XmlDataSet.write(dataset, new FileOutputStream(f_file)); } else { throw new Exception("your choice backup data but no table names asign"); } } } public void tearDown() throws Exception { IDataSet dataSet = new XmlDataSet(new FileInputStream(xmlFilePath)); DatabaseOperation.REFRESH.execute(dbunitConn, dataSet); super.tearDown(); } }
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