mockito mock annotation null pointer exception

Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I followed what @hoaz suggested. Instead of mocking using static 'mock' method of Mockito library, it also provides a shorthand way of creating mocks using '@Mock . MockitoJunitRunner will you create a Mock object based on the type you demand StockService in your guess. return new GatewayResponse(HttpStatus.Ok,product, Message.SUCCESS.getDesc()); For me it looks like that after the test with mocked Final class isn't correctly released and next tests instead of call of original java.lang.reflect.Method type calls it on mock. Add a text file to the project's src/test/resources/mockito-extensions directory named org.mockito.plugins.MockMaker and add a single line of text: After that, mocking the final method should work just fine. So for everyone else landing on this page in the future, try your best to find in your code mocking of java.lang.reflect.Method and address those tests. The issue was that the activity that I was testing extended AppCompatActivity instead of Activity. Apologies for the uninformative exception that is thrown. I hope this helps. As this is the closest I found to the issue I had, it's the first result that comes up and I didn't find an appropriate answer, I'll post the solution here for any future poor souls: any() doesn't work where mocked class method uses a primitive parameter. You should use @InjectMocks instead. And what I knew was the code enters to throwable after getting Null Pointer Exception on getUnsuccessfulCallData(false, syncMessage) and the test fails Saying something like view.hideProgressDialog() wanted 1 time but was 2 times. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Leaving this comment for the next poor soul." We can also configure Spy to throw an exception the same way we did with the mock: 6. Core Concepts. Null Pointer exception passed by test method, Mockito junit testing not working- beans mocked by @mockBean are null, Mockito Null Pointer Exception and Unfinished stubbing detected, Spring Boot JUnit test beanFactory.getBean null pointer exception, Folder's list view has different sized fonts in different folders, the Allied commanders were appalled to learn that 300 glider troops had drowned at sea. I creat. use new keyword), to ensure im getting my native class behaviour for testing. I think calling mock (YourClass.class) returns a mock which upon calling its methods throws a NPE. In this tutorial, we'll see common errors that lead to a NullPointerException on an Autowired field. { * now. In this case you should annotate your class with: You should also import into your dependency (Maven - pom.xml): You have three options for activating the @Mock annotation: MockitoRule, MockitoJUnitRunner, MockitoAnnotations.initMocks(this). It's not them. Making statements based on opinion; back them up with references or personal experience. Also we should mock prefs. Mockito: Trying to spy on method is calling the original method. Does a password policy with a restriction of repeated characters increase security? You need to instantiate the routingClientMock e.g. As for the error occuring when not mocking core classes. Anyway, you have eliminated enough things in your code to make it untestable, and in this process you have not included how do you call the method to be tested at all. rev2023.5.1.43405. IMHO using the MockitoRule is the best one, because it lets you still choose another runner like e.g. What is Wario dropping at the end of Super Mario Land 2 and why? Can you show all the declaration of the class. I finally reached the issue. I got null pointer bcoz of @RunWith(PowerMockRunner.class), instead of that I changed to @RunWith(MockitoJUnitRunner.class). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Window window; Pingback: Null pointer exception when stubbing Ask Android Questions, Followed ur steps well bt still facing the null pointer exceptions . @InjectMocks After making function open tests started to pass. @Mock The issue I have is that the code stops working when I static-mock more than one method in my code. I used import static reactor.core.publisher.Mono.when by accident. Figured out what was wrong, I needed to auto wire the service. Most likely, you mistyped returning function. Thank you very much! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey. // Null pointer exception saying bar is null. Do I need to mock the request that I have done inside getUnsuccessfulCallData(showDialog: Boolean, syncMessage: String ) to verify the method? Wondering if it is the version of mockito: Ok - figured it out - it is because the method is final. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. We don't need mock this class now. and here are the errors https://travis-ci.org/openmrs/openmrs-module-sync2/builds/602230608?utm_source=github_status&utm_medium=notification You will have to adapt to your environment/configuration. The NPE happens at @InjectMocks annotation which means the mock framework is not able to find some mocks to inject during initialization. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, please write as an answer and I'll mark it. Unfortunately, Method is one of the classes that Mockito relies on internally for its behavior. doCallRealMethod().when(parentFeedReader).pullAndProcessAllFeeds(); 5. We are using in our project mockito long time. Getting Started with Mockito @Mock, @Spy, @Captor and - Baeldung You don't need SpringJUnit4ClassRunner unless you want to wire in some Spring context into your test - which is a very twisty passage of its own. There is mentioned that some of aren't supported. You might as well consider using compiler's "all-open" plugin: Kotlin has classes and their members final by default, which makes it inconvenient to use frameworks and libraries such as Spring AOP that require classes to be open. @Mock But for sure, NullPointerException happened because you want something which is not there. I replaced @Mock with @InjectMocks - then issue was resolved. What's the cheapest way to buy out a sibling's share of our parents house if I have no cash and want to pay less than the appraised value? Here is a sample of what I think you could do if you are using mockito only and dont need to instantiate a spring container (used a single class for ease of example dont do this in actual code): If you need an example via Spring using MockBean or without and dependencies, let me know and I can post. Identify blue/translucent jelly-like animal on beach, "Signpost" puzzle from Tatham's collection. This article is a shortlist of the three most common reasons why this might be happening. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. two layers of mocks). Am just thinking , do you have atom feeds started ? And so the dependencies inside the MyClass remained null causing a null reference exception to be thrown once used. I see that when the someDao.findMe (someObject.getId.toString ()) execute it does NOT trigger my MockDao return statement, but instead tries to evaluate someObject.getId.toString (). Sorted by: 1. Thanks for contributing an answer to Stack Overflow! Mockito.mock() vs @Mock vs @MockBean | Baeldung Add @ExtendWith(MockitoExtension.class) annotation to the test class and it should work given You are using Junit 5+ version. Change getUnsuccessfulCallData(showDialog: Boolean, syncMessage: String) to open instead of internal or enable mock-maker-inline (if you haven't already). toString() results in a null pointer exception, and using the mock also results in a null pointer exception. When it run with other test all following test failed on this NPE. Is it safe to publish research papers in cooperation with Russian academics? java - Mockito NullPointerException - Stack Overflow How do you assert that a certain exception is thrown in JUnit tests? By clicking Sign up for GitHub, you agree to our terms of service and Getting a null pointer exception when invoking a method on a mock Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Why are you mocking something that you're autowiring? Is there any known 80-bit collision attack? log.info(bad product id..); When I debugged it, it goes into the clearSubscription method of the service class, and there on the line of kafkaConsumer.unsubscribe(), kafkaConsumer is null. @willa https://travis-ci.org/openmrs/openmrs-module-sync2/builds/604393280?utm_source=github_status&utm_medium=notification. Therefore, I would be inclined to close this issue as WontFix, unless @nguyenquoc you are mocking a non-java.lang. This doesnt answer the OP's original query, but its here to try help others with Mockito null pointer exceptions (NPE). ', referring to the nuclear power plant in Ignalina, mean? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Also note, I just created a dummy Consumer class cause I did not have the actual class in my environment, Is there a way to run this with SpringJUnit4ClassRunner.class.

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