Overview

Unit testing is crucial for ensuring software quality, reducing bugs, and maintaining code reliability. It provides:

• Early detection of code defects
• Improved code design and modularity
• Confidence in code changes and refactoring. Enables continuous code improvement without fear of breaking functionality.
• Documentation of expected system behavior
• Reduces debugging and complexity time
• Encourages modular loosely coupled code architecture

The goal of this document is to identify a standard testing framework to improve unit test coverage and consistency.

This document does not cover:

1. Integration testing or end-to-end testing frameworks details.
2. Load or performance testing.
3. Migration to a new testing framework for legacy modules (to be handled separately).

Problem Statement and Current Scenario

Our backend services currently face challenges in unit testing:

• Inconsistent test coverage across modules
• Multiple testing frameworks in use (Spock, JUnit 4)
• Lack of standardization in testing approach
• Limited documentation of testing requirements
• Difficulty in maintaining and extending existing tests