Comprehensive Test Suite Documentation

This document provides a complete overview of all test cases implemented for the semantic-id-generator library, covering JavaScript functionality, TypeScript definitions, performance benchmarks, and comprehensive validation.

📋 Test Suite Overview

The semantic-id-generator library includes 59+ test cases across 8 test files that validate:

• ✅ Core functionality and ID generation
• ✅ Configuration validation and error handling
• ✅ Performance benchmarking and optimization
• ✅ TypeScript definitions and type safety
• ✅ String generation strategies (all 7 strategies)
• ✅ Unicode string generation optimization
• ✅ Base64 strategy implementation
• ✅ Passphrase strategy with multi-language support

🧪 Test Files

1. test/01-semantic-id-generator.test.js

Purpose: Basic functionality and ID generation tests.

Test Cases:

1. ID Structure Validation
   • Validates correct number of parts (2: conceptName + compartments)
   • Validates correct number of compartments (3 by default)
   • Validates each compartment has correct length
2. Error Handling
   • Tests invalid argument handling
   • Validates error messages for invalid inputs
3. Default Configuration
   • Tests default separator values (| and -)
   • Validates default compartment lengths (4, 8, 12)
   • Tests default generation strategy (“visible characters”)

2. test/02-check-configuration.test.js

Purpose: Configuration validation and error handling tests.

Test Cases:

1. Valid Configuration Tests
   • Tests valid semantic ID generation from proper configuration
   • Validates configuration object structure
2. Invalid Configuration Tests
   • Tests invalid “name” value handling
   • Tests invalid “length” values (negative, zero, non-integer)
   • Tests invalid “generationStrategy” value handling
   • Validates error messages for each invalid case
3. Configuration Structure
   • Tests compartment array validation
   • Tests required property validation
   • Tests optional property handling

3. test/03-check-performances.test.js

Purpose: Performance benchmarking and optimization tests.

Test Cases:

1. Bulk Generation Performance
   • Tests generation of 100,000 IDs quickly
   • Measures performance in milliseconds
   • Validates performance meets requirements (< 20 seconds)
2. Performance Metrics
   • Tracks average time per ID generation
   • Monitors memory usage during bulk operations
   • Validates performance consistency

4. test/04-unicode-string-generation.test.js

Purpose: Unicode string generation optimization and security tests.

Test Cases:

1. Unicode String Generation Function Tests
   • Tests Unicode strings with correct length
   • Validates no separator characters in output
   • Tests different strings on multiple calls
   • Validates Unicode character handling
   • Tests error handling for invalid length
   • Tests different separator configurations
2. Performance Tests
   • 10,000 Unicode strings (10 chars each): ~377ms (0.0377ms per string)
   • 100 large Unicode strings (1000 chars each): ~322ms (3.22ms per string)
   • 1000 Unicode strings (50 chars each): ~188ms (0.188ms per string)
3. Integration Tests
   • Tests Unicode strategy in SemanticIDGenerator
   • Validates unique ID generation with Unicode strategy

5. test/05-base64-strategy.test.js

Purpose: Base64 string generation strategy testing.

Test Cases:

1. Base64 String Generation Function Tests
   • Tests Base64 strings with correct length
   • Validates no separator characters in output
   • Tests different strings on multiple calls
   • Validates only valid Base64 characters (A-Z, a-z, 0-9, +, /)
   • Tests error handling for invalid length
   • Tests different separator configurations
2. Performance Tests
   • 10,000 Base64 strings: ~74ms (0.0075ms per string)
   • 100 large Base64 strings (1000 chars each): ~37ms (0.37ms per string)
3. Integration Tests
   • Tests Base64 strategy in SemanticIDGenerator
   • Validates unique ID generation with Base64 strategy
   • Tests mixed strategies including Base64

6. test/06-passphrase-strategy.test.js

Purpose: Passphrase string generation strategy testing with multi-language support.

Test Cases:

1. Passphrase String Generation Function Tests
   • Tests passphrase strings with correct length
   • Validates no separator characters in output
   • Tests different strings on multiple calls
   • Validates only lowercase letters in output
   • Tests error handling for invalid length
   • Tests different separator configurations
   • Tests readable word generation when possible
   • Tests all languages by default
   • Tests specific language configuration
   • Tests unknown language code handling
2. Performance Tests
   • 10,000 passphrase strings: ~2170ms (0.217ms per string)
   • 50 large passphrase strings (500 chars each): ~27ms (0.55ms per string)
3. Integration Tests
   • Tests passphrase strategy in SemanticIDGenerator
   • Validates unique ID generation with passphrase strategy
   • Tests mixed strategies including passphrase
   • Tests human-readable passphrase generation
   • Tests language-specific passphrase generation
4. Language Support Tests
   • English: windowpenguinzenithjunglecherr
   • French: foretcoucherreinejasminchuchot
   • Spanish: horizontesusurronebulosapulpoa
   • German: eisbergmondoaseapfeljasminadle

7. test/typescript-definitions.test.ts

Purpose: TypeScript definitions and type safety validation.

Test Cases:

1. Basic Type Checking
   • Tests SemanticIDGenerator class type checking
   • Validates constructor and method signatures
   • Tests return type of generateSemanticID()
2. Configuration Type Checking
   • Tests SemanticIDGeneratorConfig interface
   • Validates all configuration properties
   • Tests compartment array handling
3. Strategy and Language Type Checking
   • Tests all GenerationStrategy types
   • Tests all LanguageCode types
   • Validates type union functionality
4. Advanced Type Features
   • Tests readonly configuration property
   • Tests error handling with TypeScript
   • Tests complex configurations
   • Tests type unions
   • Tests optional properties
   • Tests array types

8. test/typescript-compilation.test.ts

Purpose: TypeScript compilation and compile-time validation tests.

Test Cases:

1. Type Usage Validation
   • Tests correct type usage compilation
   • Validates configuration object structure
   • Tests type export functionality
2. Strategy and Language Validation
   • Tests all valid generation strategies
   • Tests all valid language codes
   • Validates type safety for each
3. Structure and Method Validation
   • Tests compartment structure validation
   • Tests readonly configuration property
   • Tests method signature validation
   • Tests constructor overload validation
4. Complex Scenarios
   • Tests complex type scenarios
   • Tests type safety for error handling
   • Validates advanced type usage

🚀 Running Tests

All Tests

# Run all JavaScript and TypeScript tests
npm test

# Run all tests with TypeScript support
npm test && npm run test:typescript

Individual Test Categories

# Core functionality tests
npx mocha test/01-semantic-id-generator.test.js

# Configuration validation tests
npx mocha test/02-check-configuration.test.js

# Performance tests
npx mocha test/03-check-performances.test.js

# Unicode optimization tests
npx mocha test/04-unicode-string-generation.test.js

# Base64 strategy tests
npx mocha test/05-base64-strategy.test.js

# Passphrase strategy tests
npx mocha test/06-passphrase-strategy.test.js

# TypeScript definition tests
npx mocha test/typescript-definitions.test.ts --require ts-node/register

# TypeScript compilation tests
npx mocha test/typescript-compilation.test.ts --require ts-node/register

TypeScript Tests Only

# Run all TypeScript tests
npm run test:typescript

# Type checking
npm run type-check

📊 Test Coverage

Functionality Coverage

• ✅ Core ID Generation
  • Default configuration handling
  • Custom configuration support
  • Error handling and validation
• ✅ String Generation Strategies
  • All characters (Unicode)
  • Visible characters (ASCII)
  • Numbers (0-9)
  • Alphanumeric (A-Z, a-z, 0-9)
  • Hexadecimal (0-9, a-f)
  • Base64 (A-Z, a-z, 0-9, +, /)
  • Passphrase (multi-language words)
• ✅ Configuration Management
  • Separator customization
  • Compartment configuration
  • Strategy assignment
  • Language code support
• ✅ Error Handling
  • Invalid configuration detection
  • Invalid input validation
  • Meaningful error messages
  • Graceful failure handling

Performance Coverage

• ✅ Bulk Generation Performance
  • 100,000 IDs generation: ~10-16 seconds
  • Average time per ID: ~0.1-0.17ms
• ✅ Strategy Performance Benchmarks
  • Base64: Fastest (0.0075ms per string)
  • Visible characters: Very fast (0.0377ms per string)
  • Numbers/Alphanumeric/Hexadecimal: Fast
  • Passphrase: Moderate (0.217ms per string)
  • Unicode: Slower due to complexity (0.0377ms per string)

TypeScript Coverage

• ✅ Type Definitions
  • SemanticIDGenerator class
  • SemanticIDGeneratorConfig interface
  • Compartment interface
  • GenerationStrategy type union
  • LanguageCode type union
  • All internal interfaces
• ✅ Type Safety
  • Constructor overloads
  • Method signatures
  • Property access
  • Error handling
  • Type unions
  • Optional properties
  • Array types

Security Coverage

• ✅ Cryptographic Security
  • Uses crypto.randomBytes() and crypto.randomInt()
  • High entropy and unpredictability
  • Suitable for production environments
• ✅ Input Validation
  • Length validation
  • Type validation
  • Strategy validation
  • Language code validation

🎯 Test Results

Current Status: ✅ 59+ passing tests

JavaScript Tests (48 tests)

01 | SemanticIDGenerator | Test Main
  ✔ should generate an ID with the correct number of parts (2)
  ✔ should generate an ID with the correct number of compartments (3)
  ✔ should generate an ID where each compartment has correct length
  ✔ should throw an error when provided with invalid arguments

02 | Configuration Validation
  ✔ should generate a valid semantic id from a valid configuration
  ✔ should throw an error when a configuration contains invalid "name" value
  ✔ should throw an error when a configuration contains invalid "length" values
  ✔ should throw an error when a configuration contains invalid "generationStrategy" value

03 | Performance Tests
  ✔ should generate 100,000 IDs quickly (~10-16 seconds)

04 | Unicode String Generation
  ✔ should generate Unicode strings with correct length
  ✔ should not contain separator characters
  ✔ should generate different strings on multiple calls
  ✔ should handle Unicode characters correctly
  ✔ should throw error for invalid length
  ✔ should work with different separator configurations
  ✔ should generate 10,000 Unicode strings efficiently (~377ms)
  ✔ should handle large Unicode strings efficiently (~322ms)
  ✔ should perform better than Math.random() implementation (~188ms)
  ✔ should work correctly in SemanticIDGenerator with Unicode strategy
  ✔ should generate unique IDs with Unicode strategy

05 | Base64 Generation Strategy
  ✔ should generate Base64 strings with correct length
  ✔ should not contain separator characters
  ✔ should generate different strings on multiple calls
  ✔ should contain only valid Base64 characters
  ✔ should throw error for invalid length
  ✔ should work with different separator configurations
  ✔ should generate 10,000 Base64 strings efficiently (~74ms)
  ✔ should handle large Base64 strings efficiently (~37ms)
  ✔ should work correctly in SemanticIDGenerator with Base64 strategy
  ✔ should generate unique IDs with Base64 strategy
  ✔ should generate semantic IDs with mixed strategies including Base64

06 | Passphrase Generation Strategy
  ✔ should generate passphrase strings with correct length
  ✔ should not contain separator characters
  ✔ should generate different strings on multiple calls
  ✔ should contain only lowercase letters
  ✔ should throw error for invalid length
  ✔ should work with different separator configurations
  ✔ should generate readable words when possible
  ✔ should use all languages by default
  ✔ should support specific language configuration
  ✔ should handle unknown language codes gracefully
  ✔ should generate 10,000 passphrase strings efficiently (~2170ms)
  ✔ should handle large passphrase strings efficiently (~27ms)
  ✔ should work correctly in SemanticIDGenerator with Passphrase strategy
  ✔ should generate unique IDs with Passphrase strategy
  ✔ should generate semantic IDs with mixed strategies including Passphrase
  ✔ should generate human-readable passphrases
  ✔ should generate passphrases with language configuration

TypeScript Tests (21 tests)

TypeScript Definitions
  ✔ should provide proper type checking for SemanticIDGenerator
  ✔ should provide proper type checking for configuration
  ✔ should provide proper type checking for compartments
  ✔ should provide proper type checking for generation strategies
  ✔ should provide proper type checking for language codes
  ✔ should provide proper type checking for readonly configuration
  ✔ should provide proper type checking for error handling
  ✔ should provide proper type checking for complex configurations
  ✔ should provide proper type checking for type unions
  ✔ should provide proper type checking for optional properties
  ✔ should provide proper type checking for array types

TypeScript Compilation Tests
  ✔ should validate correct type usage
  ✔ should validate generation strategy types
  ✔ should validate language code types
  ✔ should validate compartment structure
  ✔ should validate readonly configuration property
  ✔ should validate method signatures
  ✔ should validate constructor overloads
  ✔ should validate type exports
  ✔ should validate complex type scenarios
  ✔ should validate type safety for error handling

🔧 Test Configuration

Dependencies

• Mocha: ^10.2.0 (JavaScript test runner)
• Chai: ^4.3.7 (Assertion library)
• TypeScript: ^5.0.0 (TypeScript compiler)
• ts-node: ^10.9.0 (TypeScript execution)
• @types/node: ^20.0.0 (Node.js types)
• @types/mocha: ^10.0.10 (Mocha types)
• @types/chai: ^5.2.2 (Chai types)

Test Scripts

{
  "scripts": {
    "test": "mocha",
    "test:typescript": "mocha test/typescript-*.test.ts --require ts-node/register",
    "type-check": "tsc --noEmit"
  }
}

📝 Test Maintenance

Adding New Tests

1. JavaScript Tests: Add to appropriate test/*.test.js file
2. TypeScript Tests: Add to appropriate test/typescript-*.test.ts file
3. Follow naming convention: should [description]
4. Include proper assertions: Use Chai’s expect() syntax
5. Test both positive and negative cases
6. Run tests: npm test && npm run test:typescript

Performance Testing

1. Benchmark new features against existing performance
2. Monitor memory usage during bulk operations
3. Validate performance consistency across runs
4. Update performance documentation with new benchmarks

TypeScript Testing

1. Add type definitions for new features
2. Create corresponding test cases for type safety
3. Run type checking: npm run type-check
4. Validate IntelliSense support in IDEs

🎉 Benefits

The comprehensive test suite provides:

• 🔍 Complete functionality validation
• ⚡ Performance benchmarking
• 🛡️ Type safety guarantees
• 🔧 Error prevention
• 📚 Comprehensive documentation
• 🚀 Improved developer experience
• 🐛 Reduced runtime errors
• 🔄 Easy refactoring support

The test suite ensures that the semantic-id-generator library is production-ready, well-documented, and highly reliable for all users.