因此,這裏是我想爲創建一個測試的類和方法:如何模擬一個方法中的對象方法調用?
public class RequestController {
private GetAllInter getAnalytics;//This is an interface
@RequestMapping(value ="",method=RequestMethod.GET)
public String getAllAnalytics(){
log.debug("Processing request for all analytics");
String result;
try {
result = getAnalytics.getAll();
} catch (Exception e) {
result = "Could not retrieve full list of analytics";
log.error(result,e);
}
return result;
}
具體來說,我想嘲笑getAnalytics.getAll(),所以它返回我已經定義的字符串。而不是方法在做它的事情。這是我的代碼:
public class RequestControllerTest extends Mockito{
private String allAnalyticsStr = "Hello";
@Test
public void testGetAllAnalytics(){
GetAllInter getAll = mock(GetAllInter.class);
when(getAll.getAll()).thenReturn("what");
RequestController requestController = new RequestController();
assert(requestController.getAllAnalytics().equals("Hello"));
}
,當我嘗試運行測試,這是錯誤即時得到:
16:17:03.240 [主] DEBUG dar.RequestController - 處理所有requst分析 16:17:03.248 [main] ERROR dar.RequestController - 無法檢索完整的分析列表 java.lang.NullPointerException:null at dar.RequestController.getAllAnalytics(RequestController.java:32)〜[classes /:na ] at dar.RequestControllerTest.testGetAllAnalytics(RequestControllerTest.java:28)[test-classes /:na] 0 (sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)〜[na:1.7.0_79] .DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)〜[na:1.7.0_79] at java.lang.reflect.Method.invoke(Method.java:606)〜[na:1.7.0_79] at org.junit .runners.model.FrameworkMethod $ 1.runReflectiveCall(FrameworkMethod.java:50)[junit-4.12.jar:4.12] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)[junit- 4.12.jar:4.12] at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)[junit-4.12.jar:4.12] at org.junit.internal.runners.statements.InvokeMethod.evaluate (在vokeMethod.java:17)[junit-4.12.jar:4.12] at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)[junit-4.12.jar:4.12] at org。 junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)[junit-4.12.jar:4.12] at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)[junit-4.12.jar:4.12] at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)[junit-4.12.jar:4.12] at org.junit.runners.ParentRunner $ 3.run(ParentRunner.java:290)[junit-4.12 .jar:4.12] at org.junit.runners.ParentRunner $ 1.schedule(ParentRunner.java:71)[junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288 )[junit-4.12.jar:4.12] at org.junit.runners.Pare ntRunner.access $ 000(ParentRunner.java:58)[junit-4.12.jar:4.12] at org.junit.runners.ParentRunner $ 2.evaluate(ParentRunner.java:268)[junit-4.12.jar:4.12] at org.junit.runners.JUnitCore.run(JUnitCore.java:137)[junit-4.12.jar:4.12] [org.junit.runners.ParentRunner.run(ParentRunner.java:363)[junit-4.12.jar:4.12] 4.12] at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)[junit-rt.jar:na] at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234 )[junit-rt.jar:na] at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)[junit-rt.jar:na] at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)〜[na:1.7.0_79] at sun.reflect.NativeMethod AccessorImpl.invoke(NativeMethodAccessorImpl.java:57)〜[na:1.7.0_79] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)〜[na:1.7.0_79] at java.lang.reflect。 Method.invoke(Method.java:606)〜[na:1.7.0_79] at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)[idea_rt。罐子:NA] 和
java.lang.AssertionError 在dar.RequestControllerTest.testGetAllAnalytics(RequestControllerTest.java:28) 在sun.reflect.NativeMethodAccessorImpl.invoke0(本機方法) 在sun.reflect.NativeMethodAccessorImpl。在org.junit.runners的java.lang.reflect.Method.invoke(Method.java:606) 處調用(NativeMethodAccessorImpl.java:57) (在DelegatingMethodAccessorImpl.java:43) 。 model.FrameworkMethod $ 1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at或g.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.internal.runners。 statements.RunBefores.evaluate(RunBefores.java:26) 在org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) 在org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) 在org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner $ 3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner $ 1.schedule(ParentRunner。 java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.P在org.junit.runners.ParentRunner.run(ParentRunner.java:363) 處, org.junit.runner.JUnitCore.run(JUnitCore.java:137) 在com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117) 在com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart( JUnitStarter.java:234) 在com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74) 在sun.reflect.NativeMethodAccessorImpl.invoke0(本機方法) 在sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod AccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) Any idea what ...我做錯了?有沒有另一種方法來做到這一點?是因爲我嘲笑了一個類的接口而不是類本身?
謝謝!我照你說的做了,它的工作,這個鏈接是一個很好的資源。 – user3750667