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Test Suite Summary

✅ Test Results

  • Total Test Files: 4
  • Total Tests: 160 (64 unit/integration + 96 fuzz tests)
  • Status: All Passed ✓
  • Duration: ~6.7 seconds (1.6s unit/integration + 5.1s fuzz)

📁 Test Files Created

1. rpcMonitor.test.js (14 tests)

Unit tests for RPC monitoring functionality:

  • ✅ getMonitoringResults() - Returns monitoring data structure
  • ✅ getMonitoringStatus() - Returns monitoring status
  • ✅ startRpcHealthCheck() - Starts monitoring without errors
  • ✅ URL validation (HTTP, templates, WebSocket filtering)
  • ✅ RPC call handling (success, errors, timeouts)
  • ✅ Real-time updates during monitoring
  • ✅ Chain endpoint limiting (max 5 per chain)
  • ✅ Early termination on failed endpoints

2. dataService.test.js (31 tests)

Tests for data service functions:

  • ✅ getCachedData() - Returns cached data structure
  • ✅ searchChains() - Searches by ID and name (case-insensitive)
  • ✅ getChainById() - Retrieves chain by ID
  • ✅ getAllChains() - Returns all chains without RPC data
  • ✅ getAllRelations() - Returns relations with correct nesting
  • ✅ getRelationsById() - Gets relations for specific chain
  • ✅ getEndpointsById() - Gets endpoints for specific chain
  • ✅ getAllEndpoints() - Returns all endpoints with RPC/firehose/substreams
  • ✅ Data transformation (flattening theGraph fields)
  • ✅ SLIP-0044 parsing (testnet identification)
  • ✅ Tag handling (L2, Testnet, Beacon)
  • ✅ Data source merging (no duplicate RPCs)

3. api.test.js (19 tests)

Integration tests for all API endpoints:

4. api.fuzz.test.js (96 tests) ⚡ NEW!

Fuzz tests for security and robustness:

  • ✅ GET /health - Returns health status
  • ✅ GET /chains - Returns all chains
  • ✅ GET /chains?tag=L2 - Filters by tag
  • ✅ GET /chains/:id - Returns specific chain
  • ✅ GET /search?q=ethereum - Searches chains
  • ✅ GET /relations - Returns all relations
  • ✅ GET /relations/:id - Returns chain relations
  • ✅ GET /endpoints - Returns all endpoints
  • ✅ GET /endpoints/:id - Returns chain endpoints
  • ✅ GET /sources - Returns data source status
  • ✅ GET /rpc-monitor - Returns RPC monitoring results
  • ✅ GET /rpc-monitor/:id - Returns chain-specific monitoring
  • ✅ Error handling (400, 404 responses)
  • ✅ Query parameter validation

Fuzz Test Coverage:

  • ✅ Property-based testing - 100 random inputs per test
  • ✅ SQL injection attempts - "1' OR '1'='1", DROP TABLE, UNION SELECT
  • ✅ XSS attempts - <script>, <img onerror>, javascript:
  • ✅ Path traversal - ../../../etc/passwd, ..\windows\system32
  • ✅ Unicode handling - 🔥💻🚀, 测试, тест, اختبار, ∀x∈ℝ
  • ✅ Buffer overflow - 100K+ character inputs
  • ✅ HTTP method fuzzing - POST/PUT/DELETE on GET endpoints
  • ✅ Header injection - Malformed headers
  • ✅ Input validation - Empty strings, null, undefined, special chars
  • ✅ Type confusion - Mixed integers, strings, floats, booleans

🛠️ Configuration Files

package.json

Added test scripts:

{
  "scripts": {
    "test": "vitest run",
    "test:watch": "vitest",
    "test:coverage": "vitest run --coverage"
  },
  "devDependencies": {
    "vitest": "^2.1.8",
    "@vitest/coverage-v8": "^2.1.8",
    "fast-check": "latest",
    "@fast-check/vitest": "latest"
  }
}

vitest.config.js

  • Environment: Node.js
  • Coverage provider: V8
  • Reporters: text, json, html
  • Test timeout: 30 seconds
  • Excludes: node_modules, test files, config files, MCP servers

📊 Test Coverage Areas

Functions Tested

  • ✅ All exported functions in rpcMonitor.js
  • ✅ All exported functions in dataService.js
  • ✅ All API endpoints in index.js

Edge Cases Covered

  • ✅ Invalid input validation
  • ✅ Missing data handling
  • ✅ Error responses
  • ✅ Network failures
  • ✅ Timeouts
  • ✅ Case-insensitive searches
  • ✅ Empty results
  • ✅ Duplicate data prevention

Mocking Strategy

  • ✅ External fetch calls mocked
  • ✅ Data sources mocked
  • ✅ RPC endpoints mocked
  • ✅ Test isolation maintained

🚀 Running Tests

# Run all tests
npm test

# Watch mode (auto-rerun on changes)
npm run test:watch

# Generate coverage report
npm run test:coverage

# Run specific test file
npx vitest run rpcMonitor.test.js

# Run tests matching pattern
npx vitest run -t "RPC Monitor"

📈 Next Steps

  1. Add more edge cases as you discover them in production
  2. Increase coverage to 90%+ with npm run test:coverage
  3. Add CI/CD integration - Run tests before deployment
  4. Add performance tests for large datasets
  5. Add load tests for API endpoints
  6. Mock external APIs more comprehensively

📝 Documentation

See TESTING.md for:

  • Detailed testing guide
  • Writing new tests
  • Best practices
  • Debugging tips
  • CI/CD integration

✨ Benefits

✅ Confidence - Code changes won't break existing functionality ✅ Documentation - Tests serve as usage examples ✅ Refactoring - Safe to refactor with test coverage ✅ Bug Prevention - Catch issues before production ✅ Fast Feedback - Tests run in ~1.6 seconds