用Manager对DAO封装完成以后进行单元测试的时候出现异常，异常如下：
org.jmock.core.DynamicMockError: mockUserDAO: no match found
Invoked: com.mywap.dao.UserDAO.getUser(<test>)
Allowed:
expected once and has been invoked: deleteUser( eq(<test>) ), is void
at org.jmock.core.AbstractDynamicMock.mockInvocation(Unknown Source)
at org.jmock.core.CoreMock.invoke(Unknown Source)
at $Proxy0.getUser(Unknown Source)
at com.mywap.service.impl.UserManagerImpl.getUser(UserManagerImpl.java:38)
at com.mywap.test.service.UserManagerTest.testDeleteUser(UserManagerTest.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at junit.framework.TestCase.runTest(TestCase.java:154)
at org.jmock.core.VerifyingTestCase.runBare(Unknown Source)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:421)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:305)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:186)
根据Trace的结果显示，是UserManager在通过UserDAO调用getUser(String userName)方法时无法创建一个复制对象UserDAO，因此产生异常。
为解决这个问题需要完成以下事项：
1. 搞清楚JMock运行的机理，DAO,Manager, JMock之间的关系，JMock在其它两者间的作用；
2. 确认是否需要通过配置文件来确定之间的关系