用Manager對DAO封裝完成以後進行單元測試的時候出現異常，異常如下：
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)
根據Trace的結果顯示，是UserManager在通過UserDAO調用getUser(String userName)方法時無法創建一個複製對象UserDAO，因此產生異常。
爲解決這個問題需要完成以下事項：
1. 搞清楚JMock運行的機理，DAO,Manager, JMock之間的關係，JMock在其它兩者間的作用；
2. 確認是否需要通過配置文件來確定之間的關係