Mockito Concepts

Internal

• Mockito
• Testing Concepts

Overview

Mockito works by dynamically creating proxies that intercept invocation into the managed test double objects and reacting the way they were programmed - return pre-defined answers, throw exceptions, etc. when the invocations are sent into the managed test doubles.

Mockito.mock()

Programming Model | API

@Mock

Programming Model | Annotations

Can't Mock

• Final classes
• Final methods
• Enums
• Static methods
• Private methods
• hashCode() and equals() methods
• Anonymous classes
• Primitive types

PowerMock can mock these constructs.

Managed Test Double

A test double managed by Mockito. It can be created either via the API with Mockito.mock(<object>) or by annotating the field referencing the object in question with @Mock.