我正在尝试为以下类编写单元测试：
@Transactional
public class EditorHelper {
private static SessionFactory sf;
static {
ClassPathResource hbr = new ClassPathResource("hibernate.cfg.xml");
File hbCfg = null;
try {
hbCfg = hbr.getFile();
} catch (IOException e) {
e.printStackTrace();
}
if (hbCfg != null) {
sf = new AnnotationConfiguration().configure(hbCfg).buildSessionFactory(); // <-- Stack trace points here
}
}
public static void setSf(SessionFactory sf) {
EditorHelper.sf = sf;
}
}
还有其他一些方法，但是这个设置代码与我的问题相关。在我的单元测试中，我想模拟（使用 EasyMock）SessionFactoryobject sf，以及它将返回的Sessionand对象：Transaction
public class EditorTest {
private SessionFactory sf;
private Session s;
private Transaction tx;
private Long id = 1L;
private String idStr = id.toString();
@Before
public void setUp() {
sf = EasyMock.createMock(SessionFactory.class);
s = EasyMock.createMock(Session.class);
tx = EasyMock.createMock(Transaction.class);
EditorHelper.setSf(sf); // <-- Stack trace points here
EasyMock.expect(sf.getCurrentSession()).andReturn(s);
EasyMock.expect(s.beginTransaction()).andReturn(tx);
}
// Tests go here
}
当我尝试使用 JUnit 运行它时，我收到以下错误：
java.lang.NoSuchFieldError: INSTANCE
at org.hibernate.type.BasicTypeRegistry.<init>(BasicTypeRegistry.java:94)
at org.hibernate.type.TypeResolver.<init>(TypeResolver.java:59)
at org.hibernate.cfg.Configuration.<init>(Configuration.java:250)
at org.hibernate.cfg.Configuration.<init>(Configuration.java:302)
at org.hibernate.cfg.AnnotationConfiguration.<init>(AnnotationConfiguration.java:87)
at com.mypkg.helper.EditorHelper.<clinit>(EditorHelper.java:38)
at com.mypkg.model.EditorTest.setUp(EditorTest.java:29)
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 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
我可以看到没有公共INSTANCE变量。sf我是 EasyMock 的新手，所以我想我的问题是：我应该告诉我的模拟返回什么INSTANCE，以及如何告诉它这样做？我根本不知道为什么SessionFactory要调用设置代码setSf()，所以这是另一个谜。更普遍的问题是：无论如何我应该如何模拟 SessionFactory 对象？
更新
我发现在不做任何事情的情况下捕获异常就可以了。我改变了我的EditorHelper班级如下：
@Transactional
public class EditorHelper {
private static SessionFactory sf;
static {
...
if (hbCfg != null) {
try { // New try block lets the initializaiton fail
sf = new AnnotationConfiguration().configure(hbCfg).buildSessionFactory();
} catch (NoSuchFieldError e) {
e.printStackTrace();
}
}
...
一旦这个静态块完成，我可以将SessionFactory成员设置为指向我的模拟对象，一切都可以从那里开始。