
Learn Java Unit Testing with Junit & Mockito in 30 Steps
Coupon Verified on April 3rd, 2025

Course Name : Learn Java Unit Testing with Junit & Mockito in 30 Steps
Students : 106,573
Duration : 5 hrs
Avg Rating : 4.5 (24,853 ratings)
Original Price : $119.99
Discount Price : $14
Instructor / Provider : in28Minutes, Udemy
Course Type : Self Paced Online Course. Lifetime Access
Coupon : Click on ENROLL NOW to apply discount code
You’ll Learn How to:
- Master the Basics of Unit Testing: Understand the fundamentals of unit testing with JUnit, the leading testing framework for Java.
- Learn Mocking with Mockito: Gain expertise in Mockito, the most popular mocking framework, and learn to write effective unit tests using mocking techniques.
- Integrate Frameworks: Combine JUnit, Mockito, and PowerMock to build powerful, real-world unit tests for complex scenarios.
Mockito Framework
- Setting Up Your Project: Set up a project in Eclipse with JUnit and Mockito, and write your first unit test.
- Why Use Mocks?: Understand the purpose of mocks and create an example to explore their value.
- Stubs vs Mocks: Learn what stubs are, write a unit test using stubs, and understand their limitations.
- First Mockito Test: Write your first Mockito code to mock a service, such as TodoService.
- Mockito Stubbing: Explore variations like multiple return values, argument matchers, and exceptions.
- Introduction to BDD: Learn Behavior-Driven Development (BDD) and use the Given-When-Then syntax with Mockito.
- Verifying Mock Behavior: Track and verify method calls on mocks, including checking invocation counts.
- Capturing Arguments: Capture and validate arguments passed to mocked methods.
- Hamcrest Matchers: Use Hamcrest matchers to write more expressive and flexible assertions.
- Mockito Annotations: Simplify mocking with annotations like
@Mock
,@InjectMocks
, and@Captor
. - JUnit Rules: Use
MockitoJUnit.rule()
as an alternative to@RunWith(MockitoJUnitRunner.class)
. - Spring Integration: Write a real-world unit test in a Spring application context.
- Spies in Mockito: Learn what spies are and how to use them in unit tests.
- Theory: Mockito Limitations: Understand why Mockito does not allow stubbing final and private methods.
15–17. PowerMock and Mockito:- Mock static methods.
- Invoke private methods.
- Mock constructors.
- Writing Great Unit Tests: Understand the principles of writing clear, maintainable, and effective unit tests.
JUnit Framework
- Why Unit Testing Matters: Discover the importance of unit testing in software development.
- Getting Started: Set up your first JUnit project and write a basic test.
- First Successful Test: Run a JUnit test and validate results using
assertEquals
. - Refactoring Tests: Improve your tests for better readability and maintainability.
- Advanced Assertions: Use
assertTrue
andassertFalse
for additional test cases.
6–7. Setup and Teardown: Learn the lifecycle annotations@Before
,@After
,@BeforeClass
, and@AfterClass
. - Array Comparison: Write tests to compare arrays and ensure data integrity.
- Exception Testing: Validate that your code correctly handles exceptions.
- Performance Testing: Measure performance within unit tests.
- Parameterized Tests: Write reusable test cases with parameterized tests.
- Organizing Tests: Structure tests into suites for better management.
Deal Score-2
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