Talk:05 Junit test cases document (Deliverables)

1. Introduction

This document outlines the JUnit test cases prepared for the project. It includes the test strategy, coverage details, structure of test cases, and related deliverables.

2. Purpose

The purpose of this document is to provide a comprehensive view of the JUnit-based test coverage implemented to ensure the functionality, reliability, and performance of the application components.

3. Test Strategy

JUnit is used to implement unit testing for individual components and methods. Tests are designed following the AAA (Arrange, Act, Assert) pattern. Mocking is used where dependencies are present, leveraging frameworks such as Mockito or MockMvc.

4. Tools & Technologies

• JUnit 5
• Mockito
• Spring Test / MockMvc
• Maven / Gradle
• JaCoCo (for code coverage)
• CI/CD Integration (e.g., Jenkins, GitHub Actions)

5. Test Structure & Conventions

• Test classes follow the naming convention: `ClassNameTest.java`.
• Each method is annotated with `@Test` and describes a specific behavior being tested.
• Helper methods and setup routines are placed in `@BeforeEach` or `@BeforeAll` as needed.

6. Test Coverage

Coverage includes the following:

• Business Logic Layer
• Service Layer
• Repository Layer (mocked where appropriate)
• Controller Layer (via MockMvc)
• Exception Handling
• Utility Functions

7. Sample Test Case Format

Below is a sample template for documenting a test case:

Test Case ID: TC001

Class/Method: UserService.createUser()

Description: Verify that a new user is successfully created.

Inputs: Valid UserRequest object

Expected Output: User object saved and returned

Dependencies: UserRepository (mocked)

Result: Pass/Fail

Automated: Yes

8. Test Case Summary

Below is a sample template for documenting a test case summary:

Test Case ID	Component	Description	Status	Automated
TC001	UserService	Test user creation with valid data	Pass	Yes
TC002	UserService	Test user creation with null email	Pass	Yes
TC003	AuthController	Test login endpoint with valid credentials	Pass	Yes
TC004	OrderService	Test order processing with insufficient stock	Pass	Yes
TC005	Utility	Test date format conversion	Pass	Yes

9. Code Coverage Report

Code coverage is measured using JaCoCo. The current test coverage metrics are:

• Line Coverage: 85%
• Branch Coverage: 78%
• Method Coverage: 88%

10. Conclusion

This document provides a clear overview of the JUnit tests implemented. The tests help ensure that the core functionality of the application remains reliable and maintainable throughout development.