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Mockito provides an option to create spy on real objects. When a spy is called, then the actual method of a real object is called. Syntax //create a spy on…

Mockito provides an Answer interface that allows stubbing with a generic interface. Syntax //add the behavior to add numbers when(calcService.add(20.0,10.0)).thenAnswer(new Answer<Double>() {    @Override    public Double answer(InvocationOnMock invocation) throws…

Mockito provides Inorder class which takes care of the order of method calls that the mock is going to make in due course of its action. Syntax //create an inOrder…

So far, we've used annotations to create mocks. Mockito provides various methods to create mock objects. mock() creates mocks without bothering about the order of method calls that the mock…

Mockito provides the capability to a mock to throw exceptions, so exception handling can be tested. Take a look at the following code snippet. //add the behavior to throw exception…

Mockito provides the following additional methods to vary the expected call counts. atLeast (int min) − expects min calls.atLeastOnce () − expects at least one call.atMost (int max) − expects max calls. Example…

Mockito provides a special check on the number of calls that can be made on a particular method. Suppose MathApplication should call the CalculatorService.serviceUsed() method only once, then it should…

Mockito can ensure whether a mock method is being called with required arguments or not. It is done using the verify() method. Take a look at the following code snippet. //test the…

Mockito adds functionality to a mock object using the methods when(). Take a look at the following code snippet. //add the behavior of calc service to add two numbers when(calcService.add(10.0,20.0)).thenReturn(30.00); Here…