mockito mock annotation null pointer exception

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As per Mockito you can create mock object by either using @Mock or Mockito.mock(Context.class);, 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().When I did println in the test … If I were you, I'd first try to initialize the mocked instances in a @Before … Mockito mock examples - JournalDev Mocking Exception Throwing using Mockito We don't need to do anything else to this method before we can use it. Adding behavior to mocked object in Mockito. Mockito annotations – @Mock, @Spy, @Captor, @InjectMocks Mockito - Quick Guide - Tutorials Point It was not a repeatable annotation. Mockito: Why You Should Not Use InjectMocks Annotation to … ArgumentCaptor Also you can simplify your test code a lot if you use @InjectMocks annotation. Exception as an Object. One option is create mocks for all intermediate return values and stub them before use. This article is a short list of 3 most common reasons why this might be happening. //add the behavior to throw exception doThrow (new Runtime Exception ("divide operation not implemented")) .when (calcService).add (10.0,20.0); Here we've added an exception clause to a mock object. In you're example when (myService.getListWithData (inputData).get ()) will cause a NullPointerException because myService.getListWithData (inputData) is null - it has not been stubbed before. Mockito Annotation Magic with Mockito: InjectMocks 3. The @Mock annotation requires a test suite that searches for the annotation and gathers the information to inject the values there. Can someone tell me whats is wrong with my implementation and why is it returning a null value, not HttpStatus OK . There are two solutions: I have a class: open class Foo(private val bar: Bar) { fun print(): String { return bar.print() } } When I mock this class in java, I get a null pointer exception. Null Pointer Exception In you're example when (myService.getListWithData (inputData).get ()) will cause a NullPointerException because myService.getListWithData (inputData) is null - it has not been stubbed before.

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