Mock constructor with mockito

Question

I want to mock a constructor into method.

public String generaID() {   
    GeneraIDParaEntidadCliente aux = new GeneraIDParaEntidadCliente(nombre, registro         


        

Answer 1

you can send mocked objects as paramemters to your class constructor, form example:

// define you object
public MainClassObj instanceClass;

// mock input parameter
MYClassObj mockedObj = Mockito.mock(MYClassObj.class);

// call construvtor with mocked parameter
instanceClass = new instanceClass(mockedObj);

Answer 2

You can use PowerMock to mock constructors.

If you can't use PowerMock for some reason, the most workable solution is to inject a factory to whatever class contains this method. You would then use the factory to create your GeneraIDParaEntidadCliente object and mock the factory.

Answer 3

There are a couple of ways of doing this, described in my article on the Mockito wiki