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Test Coverage Summary

Overview

This document provides a summary of the comprehensive test coverage achieved for the easy-i18n-cli project.

Coverage Metrics

All source files have achieved 100% code coverage across all metrics:

Overall Coverage

  • Statements: 100%
  • Branches: 100%
  • Functions: 100%
  • Lines: 100%

File-by-File Breakdown

bin/easy-i18n-cli.js

Metric Coverage
Statements 100%
Branches 100%
Functions 100%
Lines 100%

Coverage includes:

  • Version flag handling (-v, --version)
  • Config file loading (-c, --config)
  • Check mode execution (--check)
  • Default behavior (extraction mode)
  • Error handling

src/easy-i18n.js

Metric Coverage
Statements 100%
Branches 100%
Functions 100%
Lines 100%

Coverage includes:

  • Constructor and initialization
  • TypeScript file support
  • Debug and info logging
  • Token extraction with various quote types
  • Custom token names and regex patterns
  • Ignore keys functionality
  • File and directory resolution
  • Key sorting and Chinese character detection
  • Data merging (append mode and non-append mode)
  • Translation filter execution
  • Output file generation
  • Translation validation (check mode)
  • Line offset calculation
  • Complete workflow execution

src/locale.js

Metric Coverage
Statements 100%
Branches 100%
Functions 100%
Lines 100%

Coverage includes:

  • Default options handling
  • Chinese/English text switching
  • String interpolation with various key types
  • Multi-scene text handling (e.g., text#sceneA)
  • Empty and numeric key handling
  • Undefined value handling
  • Custom output filters
  • Custom transfer filters
  • Translation fallback

src/utils.js

Metric Coverage
Statements 100%
Branches 100%
Functions 100%
Lines 100%

Coverage includes:

  • Module loading without cache (noCacheRequire)
  • Locale extraction from direct exports
  • Locale extraction from default exports
  • Locale extraction from nested structures

Test Statistics

  • Total Test Suites: 4
  • Total Tests: 61
  • All Tests Passing: ✅

Test Suite Breakdown

  1. test/utils.test.js: 7 tests
  2. test/locale.test.js: 14 tests
  3. test/easy-i18n-cli.test.js: 34 tests
  4. test/bin.test.js: 6 tests

Validation

Coverage is validated through:

  1. Automated test suite (61 passing tests)
  2. nyc coverage reporting
  3. Coverage threshold enforcement (100% required)

Running Coverage Validation

# Run tests with coverage
npm test

# Generate HTML coverage report
npm run test:coverage

# Validate coverage thresholds
npm run test:check-coverage

Continuous Integration

The test suite is designed for CI/CD integration:

# Example CI step
- name: Test and Validate Coverage
  run: |
    npm test
    npm run test:check-coverage

Coverage Enforcement

Coverage thresholds are enforced via nyc configuration in package.json:

{
  "nyc": {
    "check-coverage": true,
    "lines": 100,
    "statements": 100,
    "functions": 100,
    "branches": 100
  }
}

Maintenance

To maintain 100% coverage:

  1. Write tests for all new features before implementation (TDD)
  2. Run npm test frequently during development
  3. Check coverage reports for any gaps
  4. Ensure all edge cases are tested
  5. Run npm run test:check-coverage before committing

Documentation

For detailed testing information, see:

Coverage Report Generated: 2024 Tool Version: nyc (Istanbul) Test Framework: Mocha