Course Selling App – Test Suite

This repository contains integration test cases for a Course Selling backend application, written using Bun’s test runner.

The focus of this project is testing, not backend implementation.

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Test Coverage

✅ Authentication

• Signup
• Login
• JWT validation
• Protected routes (/me)

✅ Authorization (Role-based)

• Students cannot create courses or lessons
• Instructors cannot purchase courses
• Ownership enforcement for updates & deletes

✅ Courses

• Create course (Instructor only)
• Get all courses (Public)
• Get course by ID
• Update & delete course (Owner only)

✅ Lessons

• Add lessons (Course instructor only)
• Get lessons for a course (Public)

✅ Purchases

• Student purchases a course
• Duplicate purchase prevention
• User can view only their own purchases

✅ Negative & Edge Cases

• Forbidden access (403)
• Unauthorized access (401)
• Ownership violations

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Setup

Install dependencies:

bun install

Update backend URL if required:

const BASE_URL = "http://localhost:3000";

⚠️ Backend implementation must be running locally before executing tests.

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Running Tests

Run all test suites:

bun test

Run a specific test file:

bun test courses.test.ts

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Demo Video

This video demonstrates the test cases being executed for the Course Selling application:

Kapture.2026-01-27.at.20.35.03.mp4

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Notes

• Tests are integration tests (real API, real auth, real database)
• No mocking is used
• Tests are self-contained and safe to re-run

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Requirements Validated

✅ JWT-based authentication ✅ Role-based authorization (Student vs Instructor) ✅ Ownership checks for courses & lessons ✅ Purchase flow integrity ✅ Correct HTTP status codes

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This project was created using bun init with Bun v1.2.x. Bun is a fast all-in-one JavaScript runtime.