P4RS3LT0NGV3/tests

Tests

Test Suites

test_universal.js

Tests universal decoder and all transformers:

• Encoding/decoding round-trips
• Universal decoder detection accuracy
• Edge cases and Unicode handling

npm run test:universal

test_steganography_options.js

Tests steganography with all advanced option combinations:

• Bit order (MSB/LSB)
• Variation selector mapping
  • Initial presentation options
• Zero-width character options

npm run test:steg

Running Tests

npm run test:all      # Run all tests
npm test              # Universal decoder tests
npm run test:steg     # Steganography tests

Test Structure

Tests use Node.js vm module to create sandboxed environments that mirror the browser context.

Adding New Tests

1. Place test files in tests/ directory
2. Use path.resolve(__dirname, '..') for project root
3. Add corresponding npm script in package.json