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Add comprehensive integration tests for complete template generation and validation (closes #16)

John Haleyrequested to merge
fix/issue-16-comprehensive-integration-tests into main

Summary

This merge request implements issue #16 by adding five comprehensive integration test suites that validate the complete template generation process from start to finish.

🚀 New Integration Test Suites

1. Complete Template Generation Test (complete-generation.test.ts)

  • ✅ Tests the actual createServer() function with mock inquirer prompts
  • ✅ Validates ALL 21 required template files are copied correctly
  • ✅ Ensures placeholder substitution works across all files
  • ✅ Tests various project configurations and edge cases
  • ✅ Validates deterministic output for same inputs
  • ✅ Tests package name generation with special characters

2. GitIgnore Validation Test (gitignore-validation.test.ts)

  • ✅ Validates .gitignore is copied and contains 15+ comprehensive patterns
  • ✅ Tests actual git ignore functionality with real test files
  • ✅ Validates patterns for all major operating systems (macOS, Windows, Linux)
  • ✅ Ensures common development artifacts are properly ignored
  • ✅ Tests IDE and editor file patterns

3. Generated Project Functionality Test (generated-project.test.ts)

  • ✅ Tests that generated projects build and run successfully
  • ✅ Validates npm install, build, test, and formatting commands work
  • ✅ Tests TypeScript compilation and dist/ output files
  • ✅ Validates coverage requirements are met (≥20%)
  • ✅ Tests MCP server starts without errors
  • ✅ Validates all package.json scripts are functional

4. Git Hooks Complete Integration Test (git-hooks-complete.test.ts)

  • ✅ Tests git repository initialization and configuration
  • ✅ Validates .githooks directory and pre-push hook creation
  • ✅ Tests executable permissions on hook files (Unix systems)
  • ✅ Validates quality gate commands in pre-push hook
  • ✅ Tests hook functionality with actual formatting/test failures
  • ✅ Ensures cross-platform compatibility

5. Template Consistency Test (template-consistency.test.ts)

  • ✅ Validates ALL files from templates/ directory are included
  • ✅ Tests file permission consistency across generations
  • ✅ Validates placeholder syntax is correct in all template files
  • ✅ Tests deterministic project generation
  • ✅ Ensures template directory structure is comprehensive

🛠️ Supporting Infrastructure

Test Fixtures (tests/fixtures/)

  • test-configs.ts: Multiple test project configurations including edge cases
  • expected-outputs.ts: Comprehensive lists of required files, patterns, and validations
  • test-utilities.ts: Helper functions for project generation, validation, and cleanup

Template Enhancements

  • Added missing test structure: tests/unit/, tests/integration/, tests/e2e/
  • Enhanced schemas.ts: Added ExampleRequestSchema, ExampleResponseSchema for testing
  • Enhanced server.ts: Added createServer() export function for testing
  • New template test files: Comprehensive test suites for generated projects

✅ Key Validations Implemented

  • 21 required template files validated in every generation
  • Placeholder substitution validated across all file types
  • Git functionality tested with real repositories and hooks
  • File permissions validated on Unix systems
  • Generated projects successfully build, test, and run
  • Template consistency across multiple generations
  • Cross-platform compatibility with Windows/Unix differences handled
  • Comprehensive .gitignore with 15+ required patterns tested

📊 Test Coverage Impact

This adds 48 new integration tests that comprehensively validate the entire template generation workflow from start to finish, ensuring generated projects work correctly and meet all quality standards outlined in issue #16.

🔍 Test Plan

The integration tests cover:

  1. End-to-end generation using actual createServer() function
  2. All template files are present and correctly processed
  3. Placeholder substitution works across all file types
  4. Generated projects build, test, and run successfully
  5. Git functionality including hooks and ignore patterns
  6. Cross-platform compatibility
  7. Deterministic output for reproducible builds
  8. File permissions and executable bits
  9. Template consistency across configurations

🧪 Generated Projects Validation

Each test validates that generated projects:

  • ✅ Install dependencies without errors
  • ✅ Build TypeScript successfully
  • ✅ Pass all tests with ≥20% coverage
  • ✅ Pass formatting checks
  • ✅ Start MCP server without errors
  • ✅ Have all expected output files in dist/
  • ✅ Follow proper git ignore patterns
  • ✅ Have functional git hooks with quality gates

Closes #16

🤖 Generated with Claude Code

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