I have a method with a void return type. It can also throw a number of exceptions so I’d like to test those exceptions being thrown. All attempts have failed with the same reason: The method when(T) in the type Stubber is not applicable for the arguments (void) Any ideas how I can get the … Read more
Is there any way, using Mockito, to mock some methods in a class, but not others? For example, in this (admittedly contrived) Stock class I want to mock the getPrice() and getQuantity() return values (as shown in the test snippet below) but I want the getValue() to perform the multiplication as coded in the Stock … Read more
I have a method that gets called twice, and I want to capture the argument of the second method call. Here’s what I’ve tried: ArgumentCaptor<Foo> firstFooCaptor = ArgumentCaptor.forClass(Foo.class); ArgumentCaptor<Foo> secondFooCaptor = ArgumentCaptor.forClass(Foo.class); verify(mockBar).doSomething(firstFooCaptor.capture()); verify(mockBar).doSomething(secondFooCaptor.capture()); // then do some assertions on secondFooCaptor.getValue() But I get a TooManyActualInvocations Exception, as Mockito thinks that doSomething should only be … Read more
What is the difference between @Mock and @InjectMocks in Mockito framework? 12 s 12 @Mock creates a mock. @InjectMocks creates an instance of the class and injects the mocks that are created with the @Mock (or @Spy) annotations into this instance. Note you must use @RunWith(MockitoJUnitRunner.class) or Mockito.initMocks(this) to initialize these mocks and inject them … Read more
How to verify that a method is not called on an object’s dependency? For example: public interface Dependency { void someMethod(); } public class Foo { public bar(final Dependency d) { … } } With the Foo test: public class FooTest { @Test public void dependencyIsNotCalled() { final Foo foo = new Foo(…); final Dependency … Read more
Consider a method signature like: public String myFunction(String abc); Can Mockito help return the same string that the method received? 10 s 10 You can create an in Mockito. Let’s assume, we have an interface named Application with a method myFunction. public interface Application { public String myFunction(String abc); } Here is the test method … Read more
How to mock methods with void return type? I implemented an observer pattern but I can’t mock it with Mockito because I don’t know how. And I tried to find an example on the Internet but didn’t succeed. My class looks like this: public class World { List<Listener> listeners; void addListener(Listener item) { listeners.add(item); } … Read more
Use PowerMockito on top of Mockito. Example code: @RunWith(PowerMockRunner.class) @PrepareForTest(DriverManager.class) public class Mocker { @Test public void shouldVerifyParameters() throws Exception { //given PowerMockito.mockStatic(DriverManager.class); BDDMockito.given(DriverManager.getConnection(…)).willReturn(…); //when sut.execute(); // System Under Test (sut) //then PowerMockito.verifyStatic(); DriverManager.getConnection(…); } More information:
Check the Java API for List.The get(int index) method is declared to throw only the IndexOutOfBoundException which extends RuntimeException.You are trying to tell Mockito to throw an exception SomeException() that is not valid to be thrown by that particular method call. To clarify further.The List interface does not provide for a checked Exception to be thrown from the get(int index) method and that is why Mockito is failing.When … Read more
