adr-18-testing-strategy.md

ADR-18: Testing Strategy

Status

Adopted

Context

Given the complexity and scale of our application, it's imperative to ensure the quality and reliability of our software across all platforms - backend, frontend, and mobile. We need robust testing strategies across unit testing, integration testing, and end-to-end testing. Here are the considerations:

For Java/Spring Boot (Backend)

1. Unit Testing:

   • JUnit: A popular and widely used testing framework for Java.
   • Mockito: For creating mock objects.

2. Integration Testing:

   • Spring Boot Test: For testing the integration of layers in a Spring Boot app.

3. End-to-End Testing:

   • RestAssured: For testing REST services in Java.

For JavaScript/React (Frontend)

1. Unit Testing:

   • Jest: A JavaScript testing framework maintained by Facebook.
   • React Testing Library: For testing React components.

2. Integration Testing:

   • Enzyme: JavaScript testing utility by Airbnb.

3. End-to-End Testing:

   • Cypress: A fast, reliable, and capable testing tool.

For Dart/Flutter (Mobile App)

1. Unit Testing:

   • Flutter Test: Provides a rich set of testing features built into Flutter.

2. Integration Testing:

   • Flutter Driver: The Flutter equivalent of Selenium for mobile applications.

3. End-to-End Testing:

   • Appium: An open-source tool for automating mobile apps.

Decision

Given the technologies and frameworks adopted for our application development:

• For backend tests, we're leveraging JUnit for unit tests, Spring Boot Test for integration tests, and RestAssured for end-to-end tests.
• For frontend, we're adopting Jest and React Testing Library for unit tests, Enzyme for integration tests, and Cypress for end-to-end tests.
• For mobile, we've chosen Flutter Test for unit tests, Flutter Driver for integration tests, and Appium for end-to-end tests.

Consequences

Pros:

• Robustness: Comprehensive test coverage ensures better software reliability.
• Quick Feedback Loop: Efficient unit and integration tests offer quick feedback during development.
• Cross-Platform Mobile Testing: Tools like Appium allow for testing across different mobile platforms.

Cons:

• Overhead: Multiple testing tools and libraries can introduce additional overhead in terms of maintenance.
• Learning Curve: Each tool or framework may come with its own learning curve for the development team.