API Documentation and Testing Infrastructure

[starbops]

API Documentation and Testing Infrastructure

User Story

As a developer, I want comprehensive API documentation and testing infrastructure so that the API is reliable and easy to integrate with.

Technical Requirements

• Set up OpenAPI/Swagger documentation generation
• Create comprehensive unit test suite
• Implement integration tests for API endpoints
• Set up test database with fixtures
• Create API testing utilities and helpers
• Add code coverage reporting
• Set up automated testing in CI

Acceptance Criteria

• 80%+ code coverage across all packages
• All API endpoints have integration tests
• OpenAPI spec accurately reflects API behavior
• Test suite runs in under 30 seconds
• Documentation includes working code examples
• CI pipeline runs tests on every PR

Definition of Done

• Complete test suite with good coverage
• OpenAPI documentation deployed and accessible
• Integration tests validate end-to-end flows
• Test utilities documented for team use
• CI pipeline configured and passing

Implementation Guide

Required Dependencies

# Testing frameworks
go get github.com/stretchr/testify
go get github.com/DATA-DOG/go-sqlmock
go get github.com/testcontainers/testcontainers-go

# OpenAPI/Swagger
go get github.com/swaggo/swag/cmd/swag
go get github.com/swaggo/gin-swagger
go get github.com/swaggo/files

# Code coverage
go install github.com/axw/gocov/gocov@latest

Test Structure

internal/
├── api/
│   ├── handlers/
│   │   ├── auth_test.go
│   │   └── tasks_test.go
│   └── middleware/
│       └── auth_test.go
├── database/
│   ├── repository_test.go
│   └── testhelpers/
└── models/
    └── validation_test.go

CI/CD Commands

# Run tests
go test ./... -v -race -coverprofile=coverage.out

# Generate coverage report
go tool cover -html=coverage.out -o coverage.html

# Generate Swagger docs
swag init -g cmd/server/main.go -o docs/

# Run integration tests
go test ./tests/integration/... -tags=integration

Documentation Standards

• All endpoints documented with Swagger annotations
• Request/response examples for each endpoint
• Error code documentation
• Authentication flow documentation
• Rate limiting documentation

Related Epic

Contributes to Epic #1: Core API Infrastructure