Tag: mockito

mock instance is null after @Mock annotation

I try to run this test: but I get NullPointerException for: Mockito.when(routingClientMock. what am i missing? Answer When you want to use the @Mock annotation you should use the MockitoJUnitRunner See also this tutorial.

Mockito Error Is Not Applicable for the Arguments (void)

java mocking mockito

Mockito throws error “The method when(T) in the type Stubber is not applicable for the arguments (void)” for a class I’m mocking, can’t figure out why. the code in question is: I’m aware similar questions have been asked but if somebody could explain a solution for this or point …

jersey/Mockito: NullInsteadOfMockException on client.post call verification

java jersey mockito

I’ve run into a strange issue with unit testing the following jersey client call: PostBody is a MultivaluedMap. The unit test verifies fine the accept and type calls but fails on the post one with this exception: Here’s the test code: Can you see anything wrong with this code? Answer Yes. You&#821…

Mockito; verify method was called with list, ignore order of elements in list

java junit mocking mockito

I have a class (ClassA) that get the files in a directory. It scans the given directory for files matching a regex. For each matching file, it adds a File Object to a list. Once the directory is processed, it passes the List of Files to another Class (ClassB) for processing I am writing unit tests for ClassA,…

Mocking static methods with Mockito

java mocking mockito static unit-testing

I’ve written a factory to produce java.sql.Connection objects: I’d like to validate the parameters passed to DriverManager.getConnection, but I don’t know how to mock a static method. I’m using JUnit 4 and Mockito for my test cases. Is there a good way to mock/verify this specific use-…

Mockito when method not working

java mockito

I am using mockito as mocking framework. I have a scenerio here, my when(abc.method()).thenReturn(value) does not return value, instead it returns null. } Java class When ever i run the test file the when is not working and i am using mockito1.8.5 jar in the buildpath. The service call is being mocked but ret…

Mockito mock objects returns null

java junit mockito testing

I try to implement some tests for my JSF application and for the mocks I am using mockito. (I also use spring) The test succeeds, but when I want to retrieve the instance with the getInstance method. All Parameters which I have set before (via the constructor before) are null. I am new to mocked objects, so i…

Mocking a Spy method with Mockito

java junit mocking mockito unit-testing

I am writing a unit test for a FizzConfigurator class that looks like: I’d like to write a simple unit test that stubs the doWidget(String,Config) method (so that it doesn’t actually fire and hit the database), but that allows me to verify that calling doBuzz(String) ends up executing doWidget. Mo…

Mock a constructor with parameter

java junit mocking mockito powermock

I have a class as below: The logic in the constructor A(String test) and check() are the things I am trying to mock. I want any calls like: new A($$$any string$$$).check() returns a dummy string “test”. I tried: But it doesn’t seem to be working. new A($$$any string$$$).check() is still goin…

passing Parameterized input using Mockitos

java mockito unit-testing

I am using Mockito for unit testing. I am wondering if its possible to send Parametrized input parameters with as in Junit testing e.g Answer In JUnit, Parameterized tests use a special runner that ensure that the test is instantiated multiple times, so each test method is called multiple times. Mockito is a …