我有以下类:嘲讽的Spring bean
public class Plugin {
private DistributionManager manager;
public void init(){
ApplicationContext context =
new ClassPathXmlApplicationContext("applicationContext.xml");
manager = context.getBean(DistributionManager.class);
}
public String doSomething(){
String s = manager.doSomething();
return doSomethingElse(s);
}
DistributionManager
类本身有很多自动装配Autowired依赖并标记为@Component
现在我想运行一些单元测试的所有代码:
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"/applicationContext.xml"})
public class PluginTestCase extends AbstractJUnit4SpringContextTests{
@Resource
DistributionManager manager;
@Test
public void testDoSomething(){
Plugin plugin = mock(Plugin.class);
//how can I inject DistributionMamanger bean to plugin using mockito?
assertEquals("MyResult", plugin.doSomething());
}
}
我从来没有使用过mockito。你能帮我模拟插件并完成这个单元测试吗?
更新:
我根据建议尝试以下测试:
@RunWith(MockitoJUnitRunner.class)
public class PluginTestCase {
@Mock
DistributionManager manager;
@InjectMocks
Plugin testedPlugin;
@Before
public void setUp(){
MockitoAnnotations.initMocks(this);
}
@Test
public void testDao(){
testedPlugin.init();
testedPlugin.doSomething();
}
}
,但是,我有以下异常:
org.mockito.exceptions.base.MockitoException: Field 'testedPlugin' annotated with @InjectMocks is null.
Please make sure the instance is created *before* MockitoAnnotations.initMocks();
Example of correct usage:
class SomeTest {
@InjectMocks private Foo foo = new Foo();
@Before public void setUp() {
MockitoAnnotations.initMock(this);
at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl$1.withBefores(JUnit45AndHigherRunnerImpl.java:27)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:261)
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.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)
at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)
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)
如果你想单元测试'Plugin'类,那你为什么要嘲笑它呢? – skaffman
@scaffman,可能是我错了,我从来没有用过嘲笑。我应该嘲笑什么? –
我不知道,你还没有告诉我们你想要测试什么。您可能想要阅读Mockito主页上的简单教程,以更好地了解您想要实现的目标。 – skaffman