What is the difference between mocking and stubbing in C++?

Can you explain the difference between mocking and stubbing in C++?

Sure! In C++, stubbing is used to create a simple implementation of a function that returns predefined results, while mocking involves creating a more complex object that can simulate the behavior of real objects and verify interactions.

When should I use mocking instead of stubbing?

You should use mocking when you need to verify that certain interactions occurred, such as method calls, while stubbing is sufficient when you only need to provide fixed responses.

Can you give an example of each?

Certainly! For stubbing, you might create a function that returns a constant value. For mocking, you would create a mock object that tracks how many times a method was called and with what parameters.

Are there any libraries in C++ that help with mocking?

Yes, there are several libraries like Google Mock, FakeIt, and Trompeloeil that provide tools for creating mocks and stubs in C++.