I am using a Dao class which is a singleton.I am using this dao class instance in my service class.I want to unit test my service class.So i have to mock dao class. I tried it with EasyMock.
#RunWith(PowerMockRunner.class)
#PrepareForTest(MusicPlayerDaoImpl.class)
public class MusicPlayerServiceTest {
private MusicPlayerDaoImpl dao;
private MusicPlayerServiceImpl service;
#Before
public void setUp() throws SQLException{
this.service = MusicPlayerServiceImpl.getInstance();
suppressConstructor(MusicPlayerDaoImpl.class);
mockStatic(MusicPlayerDaoImpl.class);
this.dao = createMock(MusicPlayerDaoImpl.class);
this.service.setInstance(this.dao);
Song song = new Song();
Album album = new Album();
Genre genre = new Genre();
album.setAlbumName("some album);
genre.setGenreName("some genre);
song.setTitle("title");
song.setRating(4);
song.setAlbum(album);
song.setGenre(genre);
EasyMock.expect(this.dao.getSong("Bahara")).andReturn(song);
EasyMock.replay(this.dao);
}
#Test
public void getSongTest() throws SQLException, IllegalStateException, SecurityException, SystemException {
String title = "title";
Song returnSong = this.service.getSong(title);
assertTrue(returnSong.getTitle() == title);
}
}
I am getting error as "java.lang.AssertionError:
Unexpected method call"
java.lang.AssertionError:
Unexpected method call MusicPlayerDaoImpl.getSong("title"):
MusicPlayerDaoImpl.getSong("title"): expected: 1, actual: 2
at org.easymock.internal.MockInvocationHandler.invoke(MockInvocationHandler.java:44)
at org.easymock.internal.ObjectMethodsFilter.invoke(ObjectMethodsFilter.java:94)
at org.easymock.internal.ClassProxyFactory$MockMethodInterceptor.intercept(ClassProxyFactory.java:97)
at service.MusicPlayerDaoImpl$$EnhancerByCGLIB$$e2ddeccf.getSong(<generated>)
at service.MusicPlayerServiceImpl.getSong(MusicPlayerServiceImpl.java:99)
at MusicPlayerServiceTest.getSongTest(MusicPlayerServiceTest.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:88)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:96)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:86)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:33)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:45)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:118)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:104)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:53)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)
The reason that that function is being called twice rather than 1 depends on how your service actually works. Maybe the service calls the dao method more than once.
Also, note you're using
assertTrue(expected == actual)
where you should be using
assertEquals(expected, actual)
or even better
assertThat(actual, is(expected))
Related
Here is my usecase.
I am trying to write a junit for once class which have ObjectMapper as static instance variable.
But I am running in error. I am not able to figure out where I am going wrong.
#Lazy
#Component
public class Loader
extends AbstractLoader<Request, Response> {
private static ObjectMapper customJacksonObjectMapper = new ObjectMapper()
.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false)
.registerModule(new JodaModule());
}
Subsequent Junit class
#RunWith(PowerMockRunner.class)
public class LoaderTest {
#InjectMocks
private Loader load;
private Request request;
#Before
public void setUp() {
request = new Request();
ObjectMapper mapper = PowerMockito.mock(ObjectMapper.class);
PowerMockito.when(mapper.configure(Mockito.any(MapperFeature.class), Mockito.any())).thenReturn(mapper);
PowerMockito.when(mapper.registerModule(Mockito.any())).thenReturn(mapper);
MockitoAnnotations.initMocks(this);
}
}
Here is the error stacktrace:
java.lang.NoClassDefFoundError:
com/fasterxml/jackson/annotation/JsonSetter$Value
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
at java.lang.Class.getDeclaredMethods(Class.java:1975)
at org.mockito.cglib.core.ReflectUtils.addAllMethods(ReflectUtils.java:349)
at org.mockito.cglib.proxy.Enhancer.getMethods(Enhancer.java:422)
at org.mockito.cglib.proxy.Enhancer.generateClass(Enhancer.java:457)
at org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217)
at org.mockito.cglib.proxy.Enhancer.createHelper(Enhancer.java:378)
at org.mockito.cglib.proxy.Enhancer.createClass(Enhancer.java:318)
at org.powermock.api.mockito.repackaged.ClassImposterizer.createProxyClass(ClassImposterizer.java:129)
at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:63)
at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.createMethodInvocationControl(DefaultMockCreator.java:121)
at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.createMock(DefaultMockCreator.java:69)
at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.mock(DefaultMockCreator.java:46)
at org.powermock.api.mockito.PowerMockito.mock(PowerMockito.java:141)
at com.paypal.compliance.dataloader.internal.dataloader.impl.test.ComplianceLevelStatusDataloaderTest.setUp(ComplianceLevelStatusDataloaderTest.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.internal.runners.MethodRoadie.runBefores(MethodRoadie.java:133)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:96)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:300)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:131)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.access$100(PowerMockJUnit47RunnerDelegateImpl.java:59)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner$TestExecutorStatement.evaluate(PowerMockJUnit47RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.evaluateStatement(PowerMockJUnit47RunnerDelegateImpl.java:107)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:288)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:208)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:121)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:123)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:121)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.annotation.JsonSetter$Value
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:202)
at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass1(DeferSupportingClassLoader.java:89)
at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:79)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 47 more
This is a springmvc project based on gradle, I'm unit testing it using TestNG. When I mock a service layer class and stub its methods, "when (). ThenReturn ()" keeps reporting NullPointerException, I tried Many solutions on this site are not suitable for my situation.
controller:
package app.dnatask.controller;
import ...
#Slf4j
#RestController
#RequestMapping(value = "/API/scanresultconfigure")
public class ScanResultConfigureController extends BaseController {
#Autowired
private ScanResultConfigureService scanResultConfigureService;
#RequestMapping(value = "/queryScanResultList/{taskId}/{externalname}", method = RequestMethod.POST)
public IBaseResult queryscanResultList(final HttpServletRequest request, #PathVariable final String taskId, #PathVariable final String externalname, #RequestBody Map map) throws Exception {
return runController(new IControllRunner() {
public void run(IOutResult or, CheckResult cr) throws Exception {
List<ScanResultTitleConfigurePO> list = scanResultConfigureService.findtitleConfigure(taskId, externalname, map);
......
}
}
}
}
service:
package app.dnatask.service;
import ...
#Slf4j
#Service
public class ScanResultConfigureService {
#Autowired
private Demo1 demo1;
#Autowired
private Demo2 demo2;
#Autowired
private Demo3 demo3;
public List<ScanResultTitleConfigurePO> findtitleConfigure(String taskId, String externalname, Map m) {
//Query database
List<ScanResultTitleConfigurePO> list = scanResultTitleConfigureRepository.findByTaskId(taskId, externalname);
......
retuen list;
}
}
unit test:
package app.dnatask.controller;
import ...
#WebAppConfiguration
#ContextConfiguration(classes = {ScanResultConfigureController.class})
#ComponentScan(
excludeFilters = {
#ComponentScan.Filter(type = FilterType.ANNOTATION, value = {
ComponentScan.class, Configuration.class, ImportResource.class
})
},
useDefaultFilters = false,
lazyInit = true
)
#EnableWebMvc
public class ScanResultConfigureControllerTest extends AbstractTestNGSpringContextTests {
#MockBean(answer = Answers.RETURNS_DEEP_STUBS)
private ScanResultConfigureService scanResultConfigureService;
#Autowired
private WebApplicationContext webApplicationContext;
private MockMvc mockMvc;
#BeforeMethod
public void setup() {
MockitoAnnotations.initMocks(this);
mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).dispatchOptions(true).build();
Demo1 demo1 = mock(Demo1.class,Answers.RETURNS_DEEP_STUBS);
Demo2 demo2 = mock(Demo2.class,Answers.RETURNS_DEEP_STUBS);
Demo3 demo3 = mock(Demo3.class,Answers.RETURNS_DEEP_STUBS);
}
#Test
public void testQueryscanResultList() throws Exception {
Map<String, String> testMap = new HashMap<>();
testMap.put("key1", "value1");
testMap.put("key2", "value2");
String requestJson = JSONObject.toJSONString(testMap);
List testList = new ArrayList();
testList.add("test1");
testList.add("test2");
when(scanResultConfigureService.findtitleConfigure(anyString(), anyString(), anyMap())).thenReturn(testList);
MvcResult mvcResult = mockMvc.perform(
post("/API/scanresultconfigure/queryScanResultList/{taskId}/{externalname}", "123", "abc")
.contentType(MediaType.APPLICATION_JSON)
.content(requestJson)
)
.andExpect(status().isOk())
.andDo(print())
.andReturn();
}
}
Exception message:
java.lang.NullPointerException
at app.dnatask.controller.ScanResultConfigureControllerTest.testQueryscanResultList(ScanResultConfigureControllerTest.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:133)
at org.testng.internal.MethodInvocationHelper$1.runTestMethod(MethodInvocationHelper.java:239)
at org.springframework.test.context.testng.AbstractTestNGSpringContextTests.run(AbstractTestNGSpringContextTests.java:180)
at org.testng.internal.MethodInvocationHelper.invokeHookable(MethodInvocationHelper.java:251)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:580)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:172)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:804)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:145)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at org.testng.TestRunner.privateRun(TestRunner.java:770)
at org.testng.TestRunner.run(TestRunner.java:591)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:402)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:396)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:355)
at org.testng.SuiteRunner.run(SuiteRunner.java:304)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1180)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1102)
at org.testng.TestNG.runSuites(TestNG.java:1032)
at org.testng.TestNG.run(TestNG.java:1000)
at org.gradle.api.internal.tasks.testing.testng.TestNGTestClassProcessor.runTests(TestNGTestClassProcessor.java:139)
at org.gradle.api.internal.tasks.testing.testng.TestNGTestClassProcessor.stop(TestNGTestClassProcessor.java:89)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy1.stop(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:748)
This problem has bothered me for many days ... I really need your help ..
The reason for NullpointerException could be that scanResultConfigureService.findtitleConfigure(anyString(), anyString(), anyMap()) is returning null or any intermediate method inside findtitleConfigure because it has not been stubbed before use.
You can create mocks for all intermediate return values and stub them before use. For example
FindTitleConfigure findTitleConfigure = mock(FindTitleConfigure.class);
Adding an annotation above the class of the unit test will solve the problem:
#TestExecutionListeners (listeners = MockitoTestExecutionListener.class)
I'm attempting to write a unit test using JUnit for a method, which simply has to fetch a specific record. I'm using PowerMockito to create the necessary mocks. However, when I run the test< I'm getting a NullPointerException.
The method being tested is as follows:
public InputStream fetchBlankTemplate() {
MongoDatabase database = mongoClient.getDatabase("randomName");
MongoCollection<Document> collection = database.getCollection("Templates");
InputStream fileInputStream = new ByteArrayInputStream(
collection.find(Filters.eq("templateId", 1))
.first()
.get("file", Binary.class)
.getData());
mongoClient.close();
return fileInputStream;
}
The unit test for the above method:
#RunWith(PowerMockRunner.class)
#PrepareForTest(DBConnection.class)
public class randomTest {
#InjectMocks
DBConnection dbcTest;
#Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
#SuppressWarnings("unchecked")
#Test
public void fetchBlankRecordTest() {
MongoClient mockClient = PowerMockito.mock(MongoClient.class);
MongoDatabase mockDatabase = PowerMockito.mock(MongoDatabase.class);
MongoCollection<Document> mockCollection = PowerMockito.mock(MongoCollection.class);
Binary mockBinary = PowerMockito.mock(Binary.class);
byte[] testByteArray = new byte[1000];
PowerMockito.when(mockClient.getDatabase("randomName")).thenReturn(mockDatabase);
PowerMockito.when(mockDatabase.getCollection("Templates")).thenReturn(mockCollection);
//getting NullPointerException for the line below
PowerMockito.when(mockCollection.find(Filters.eq("templateId", 1)).first().get("file", Binary.class).getData()).thenReturn(testByteArray);
InputStream testStream = dbcTest.fetchBlankTemplate();
assertNotNull(testStream);
}
}
The stack trace is as follows:
at com.random.form_upload.test.randomTest.fetchBlankRecordTest(randomTest.java:68)
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.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:326)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:310)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:131)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.access$100(PowerMockJUnit47RunnerDelegateImpl.java:59)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner$TestExecutorStatement.evaluate(PowerMockJUnit47RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.evaluateStatement(PowerMockJUnit47RunnerDelegateImpl.java:107)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:298)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:218)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:160)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:134)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:136)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:121)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:57)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)
The method being tested works as expected. The problem is in the unit test. I'm also reasonably certain that the exception is being thrown when
collection.find(Filters.eq("templateId", 1))
.first()
is getting invoked. Any ideas on the reason?
#RunWith(PowerMockRunner.class)
#PrepareForTest({ConnectionFactory.class, Proxy.class})
public class ConnectionFactoryTest {
#InjectMocks
private ConnectionFactory connectionFactory;
#Mock
private Proxy proxy;
#Mock
private InetSocketAddress inetSocketAddress;
#Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
PowerMockito.mockStatic(Proxy.class);
PowerMockito.whenNew(InetSocketAddress.class).withArguments(Mockito.anyString(), Mockito.anyInt()).thenReturn(inetSocketAddress);
PowerMockito.whenNew(Proxy.class).withArguments(Proxy.Type.SOCKS, Mockito.any(InetSocketAddress.class)).thenReturn(proxy);
}
#Test
public void testInitializeProxy() throws Exception {
connectionFactory.getHttpURLConnection(Mockito.any(URL.class));
}
}
public class ConnectionFactory implements HttpURLConnectionFactory {
private String proxyHost;
private Integer proxyPort;
Proxy proxy;
public HttpURLConnection getHttpURLConnection(URL url) throws IOException {
InetSocketAddress inetSocketAddress = new InetSocketAddress(proxyHost, proxyPort); // error occurs here
proxy = new Proxy(Proxy.Type.SOCKS, inetSocketAddress);
return (HttpURLConnection) url.openConnection(proxy);
}
}
While running the testcase, new InetSocketAddress is invoked with anyString() and anyInt() but still throws NullPointerException. Any suggestions would be welcome in this regard.
java.lang.NullPointerException
at com.impl.ConnectionFactory.getHttpURLConnection(ConnectionFactory.java:10)
at com.impl.ConnectionFactoryTest.testInitializeProxy(ConnectionFactoryTest.java:44)
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.internal.runners.TestMethod.invoke(TestMethod.java:68)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:316)
at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:89)
at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:97)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:300)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:131)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.access$100(PowerMockJUnit47RunnerDelegateImpl.java:59)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner$TestExecutorStatement.evaluate(PowerMockJUnit47RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.evaluateStatement(PowerMockJUnit47RunnerDelegateImpl.java:107)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:288)
at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:87)
at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:50)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:208)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:147)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:121)
at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34)
at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44)
at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:123)
at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:121)
at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53)
at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Error Trace is added above. This error occured while executing the test method testInitializeProxy() in ConnectionFactoryTest class
You haven't initialized proxyHost.
So that member variable is null until you actually initialize it.
I'm getting an IllegalArgumentException in my #BeforeMethod method. I'm new to using jmockit so I'm unsure of the annotations. I've tried switching around the annotations but nothing seems to get rid of the error.
Test class:
public class CSVResultHandlerTest {
CSVResultHandler csvResultHandler;//Not using #Tested since it's not an empty constructor
#Injectable
CSVConfig csvConfig;
private final static Logger logger = LoggerFactory.getLogger(CSVResultHandler.class);
FileDetails fileDetails;
CSVConfig.BulkDataFileConfig bulkDataFileConfig;
#BeforeMethod
public void init() throws IOException, SecurityVaultException {
bulkDataFileConfig = CSVConfig.BulkDataFileConfig.CZ_DEF;
fileDetails = new FileDetails();
fileDetails.setIntervalBeginTimeStamp(Instant.parse("2017-05-06T13:13:38.611Z"));
fileDetails.setIntervalEndTimeStamp(Instant.parse("2017-05-06T13:13:38.611Z"));
fileDetails.setPublicationNumber(12345);
fileDetails.setVersionNumber(1);
csvConfig = new CSVConfig(bulkDataFileConfig, fileDetails);
csvResultHandler = new CSVResultHandler(csvConfig);//this is the line getting the error
}
#Test
public void IOExceptionHandled() throws IOException {
IOException e = new IOException();
new Expectations() {{
csvConfig.getFileUrl(); result = new IOException("Mock Exception");
}};
csvResultHandler.open();
new Verifications() {{
logger.error("Exception thrown while putting file {}",csvConfig.getFileUrl(), e);
}};
}
}
CSVResultHandler has a constructor that takes a CSVConfig object as the only parameter. I know I'm missing something stupid/simple, just not sure what it is.
Stacktrace:
java.lang.IllegalArgumentException: PBOX00009: Invalid vaultString format: null
at org.jboss.security.vault.SecurityVaultUtil.getValue(SecurityVaultUtil.java:89)
at org.jboss.security.vault.SecurityVaultUtil.getValueAsString(SecurityVaultUtil.java:107)
at com.org.m2m.bulk.data.security.VaultUtil.getWebDavPwd(VaultUtil.java:13)
at com.org.m2m.bulk.data.fs.BulkDataFileSystemFactory.newWebDavFileSystem(BulkDataFileSystemFactory.java:25)
at com.org.m2m.bulk.interval.data.csv.CSVResultHandler.<init>(CSVResultHandler.java:38)
at com.org.m2m.bulk.interval.data.csv.CSVResultHandlerTest.init(CSVResultHandlerTest.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:86)
at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:514)
at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:215)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:589)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:820)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1128)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:129)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:112)
at org.testng.TestRunner.privateRun(TestRunner.java:782)
at org.testng.TestRunner.run(TestRunner.java:632)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:366)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:361)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:319)
at org.testng.SuiteRunner.run(SuiteRunner.java:268)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1244)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1169)
at org.testng.TestNG.run(TestNG.java:1064)
at org.gradle.api.internal.tasks.testing.testng.TestNGTestClassProcessor.runTests(TestNGTestClassProcessor.java:129)
at org.gradle.api.internal.tasks.testing.testng.TestNGTestClassProcessor.stop(TestNGTestClassProcessor.java:88)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy3.stop(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:120)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:147)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:129)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)