👉 In computer science, a "mocker" is a software entity that behaves like an actual object or method in a test environment. In this context, it refers to a class or function that simulates the behavior of another class or method without revealing its implementation. Mockers are typically used in scenarios where real-world objects or methods cannot be directly tested in isolation, such as during unit testing, integration testing, or performance testing. They can be used to create a mock object that behaves like the real
