Introduction to Mockito

• Understanding the importance of mocking in unit testing
• Overview of Mockito and its features
• Introduction to mocking frameworks and the role of Mockito in Java testin

Setting Up Mockito

• Configuring Mockito in different testing environments (JUnit, TestNG, etc.)
• Integrating Mockito with build tools (Maven, Gradle, etc.)
• Setting up dependencies and mockito annotations

Creating and Configuring Mock Objects

• Creating mock objects using Mockito’s mock() method
• Configuring mock object behavior using Mockito’s when() and then() methods
• Handling method invocations, return values, and exceptions

Verifying Interactions

• Verifying method invocations and interactions between objects
• Using Mockito’s verify() method to assert method calls and argument matching
• Configuring verification modes and ordering of method invocations

Mocking Collaborators and Dependencies

• Mocking dependencies and collaborators in unit tests
• Mocking interfaces, abstract classes, and concrete classes
• Configuring mock behavior for complex dependencies

Stubbing and Mocking

• Understanding the difference between stubbing and mocking
• Stubbing method behavior using Mockito’s when() and then() methods
• Mocking method behavior with custom implementations

Argument Matching

• Matching method arguments using Mockito’s argument matchers
• Configuring behavior based on specific argument values or types
• Using custom argument matchers for complex argument matching scenarios

Mocking Exceptions and Error Conditions

• Throwing exceptions and simulating error conditions in mock objects
• Configuring mock object behavior to handle exceptions
• Verifying exception handling and error propagation in unit tests

Mocking Static and Final Methods

• Mocking static methods using Mockito’s PowerMock integration
• Mocking final classes and methods using Mockito’s MockitoExtension
• Configuring mocking behavior for static and final methods

Mocking Spies and Partial Mocks

• Creating spies and partial mocks using Mockito
• Configuring partial mocking behavior for selected methods
• Combining real object behavior with mocked behavior

Advanced Mockito Features

• Working with mock annotations and injection (e.g., @Mock, @InjectMocks)
• Mocking static fields and singletons
• Using Mockito with legacy code and legacy frameworks

Mockito Best Practices

• Applying best practices for effective use of Mockito
• Writing clean and maintainable unit tests with Mockito
• Avoiding common pitfalls and anti-patterns

Mockito with Other Testing Frameworks and Tools

• Integrating Mockito with other testing frameworks (e.g., Spring, Cucumber, etc.)
• Using Mockito with code coverage tools (e.g., JaCoCo, Cobertura, etc.)
• Incorporating Mockito into continuous integration and delivery pipelines

Mocking and Testing Strategies

• Applying effective mocking and testing strategies with Mockito
• Choosing the right level of mocking for different test scenarios
• Combining Mockito with other testing techniques (e.g., stubbing, assertions, etc.)