when( fooDao.getBar( any(Bazoo.class) ) ).thenReturn(myFoo); or (to avoid nulls): when( fooDao.getBar( (Bazoo)notNull() ) ).thenReturn(myFoo); Don’t forget to import matchers (many others are available): For Mockito 2.1.0 and newer: import static org.mockito.ArgumentMatchers.*; For older versions: import static org.mockito.Matchers.*;
This is how you can do it (you can run this file as-is): import requests import unittest from unittest import mock # This is the class we want to test class MyGreatClass: def fetch_json(self, url): response = requests.get(url) return response.json() # This method will be used by the mock to replace requests.get def mocked_requests_get(*args, **kwargs): … Read more
I’ve had good success using Mockito. When I tried learning about JMock and EasyMock, I found the learning curve to be a bit steep (though maybe that’s just me). I like Mockito because of its simple and clean syntax that I was able to grasp pretty quickly. The minimal syntax is designed to support the … Read more
I’ve actually used your first approach with quite some success, but in a slightly different ways that I think would solve some of your problems: Keep the entire schema and scripts for creating it in source control so that anyone can create the current database schema after a check out. In addition, keep sample data … Read more
How about when( method-call ).thenReturn( value1, value2, value3 ); You can put as many arguments as you like in the brackets of thenReturn, provided they’re all the correct type. The first value will be returned the first time the method is called, then the second answer, and so on. The last value will be returned … Read more
Edit: Several years have passed and this isn’t really the right way to do this any more (and probably never was, my bad). Mutating an imported module is nasty and can lead to side effects like tests that pass or fail depending on execution order. I’m leaving this answer in its original form for historical … 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: Why doesn’t Mockito mock static methods?
You can use a lambda with an input parameter, like so: .Returns((string myval) => { return myval; }); Or slightly more readable: .Returns<string>(x => x);
The parentheses are poorly placed. You need to use: doThrow(new Exception()).when(mockedObject).methodReturningVoid(…); ^ and NOT use: doThrow(new Exception()).when(mockedObject.methodReturningVoid(…)); ^ This is explained in the documentation
To directly answer your question, yes, you can mock some methods without mocking others. This is called a partial mock. See the Mockito documentation on partial mocks for more information. For your example, you can do something like the following, in your test: Stock stock = mock(Stock.class); when(stock.getPrice()).thenReturn(100.00); // Mock implementation when(stock.getQuantity()).thenReturn(200); // Mock implementation … Read more