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Reputation Score Test Implementation Summary

Overview

Comprehensive unit tests have been successfully implemented for the reputation score calculation module, achieving 100% code coverage across all components.

Implementation Details

Branch

  • test/reputation-score-tests

Modules Created

  1. Core Calculation Modules

    • src/services/reputation/types.ts - Type definitions
    • src/services/reputation/bondScore.ts - Bond score calculation
    • src/services/reputation/attestationScore.ts - Attestation score calculation
    • src/services/reputation/timeWeight.ts - Time weight calculation
    • src/services/reputation/score.ts - Main reputation score formula
    • src/services/reputation/index.ts - Module exports

  2. Test Suites

    • src/services/reputation/bondScore.test.ts - 22 tests
    • src/services/reputation/attestationScore.test.ts - 28 tests
    • src/services/reputation/timeWeight.test.ts - 23 tests
    • src/services/reputation/score.test.ts - 20 tests

  3. Configuration & Documentation

    • vitest.config.ts - Test configuration with coverage thresholds
    • src/services/reputation/TEST_DOCUMENTATION.md - Comprehensive test documentation
    • Updated package.json with test scripts

Formula Implementation

totalScore = (bondScore + attestationScore) × timeWeight

Where:

  • bondScore = min(bondedAmount × 0.01, 1000)
  • attestationScore = min(Σ(validAttestationWeights) × 0.1, 100)
  • timeWeight = 1 - e^(-0.5 × (duration/maxDuration) × 10), range [0, 1]

Test Coverage

Coverage Results

File                    | % Stmts | % Branch | % Funcs | % Lines
------------------------|---------|----------|---------|--------
All files               |     100 |      100 |     100 |     100
attestationScore.ts     |     100 |      100 |     100 |     100
bondScore.ts            |     100 |      100 |     100 |     100
score.ts                |     100 |      100 |     100 |     100
timeWeight.ts           |     100 |      100 |     100 |     100

Test Statistics

  • Total Tests: 93
  • Passed: 93 (100%)
  • Failed: 0
  • Test Suites: 4
  • Coverage: 100% (exceeds 95% requirement)

Test Scenarios Covered

1. Bond Score Tests (22 tests)

  • ✅ Normal bond calculations
  • ✅ Slashed bonds (always return 0)
  • ✅ Zero and negative bond amounts
  • ✅ Maximum bond score capping (1000)
  • ✅ Fractional bond amounts
  • ✅ Boundary conditions

2. Attestation Score Tests (28 tests)

  • ✅ Single and multiple attestations
  • ✅ Valid vs invalid attestations
  • ✅ Zero and negative weights
  • ✅ Maximum attestation score capping (100)
  • ✅ Empty and null inputs
  • ✅ Large number of attestations
  • ✅ Boundary conditions

3. Time Weight Tests (23 tests)

  • ✅ Zero duration
  • ✅ Partial duration (exponential growth)
  • ✅ Maximum duration (1 year = weight 1.0)
  • ✅ Duration exceeding maximum
  • ✅ Monotonic increase verification
  • ✅ Custom max duration support
  • ✅ Edge cases (negative, zero, future timestamps)
  • ✅ Boundary conditions (exact year, ±1ms)

4. Main Score Integration Tests (20 tests)

  • ✅ Formula correctness verification
  • ✅ Component integration
  • ✅ All zero inputs
  • ✅ Slashed bonds with attestations
  • ✅ Zero time weight scenarios
  • ✅ Maximum possible score
  • ✅ Fractional values
  • ✅ Very large values
  • ✅ Custom duration parameters

Edge Cases Covered

All tests include comprehensive edge case coverage:

  1. Zero Values: All inputs tested with zero
  2. Negative Values: All numeric inputs tested with negatives
  3. Maximum Values: Testing at/above thresholds
  4. Boundary Values: Just above/below thresholds
  5. Invalid States: Slashed bonds, invalid attestations
  6. Empty/Null: Empty arrays, null/undefined inputs
  7. Extreme Values: MAX_SAFE_INTEGER, very large numbers

Test Execution

Commands

# Run all tests
npm test

# Run tests in watch mode
npm run test:watch

# Run tests with coverage report
npm run test:coverage

Test Output

✓ src/services/reputation/timeWeight.test.ts (23 tests)
✓ src/services/reputation/attestationScore.test.ts (28 tests)
✓ src/services/reputation/score.test.ts (20 tests)
✓ src/services/reputation/bondScore.test.ts (22 tests)

Test Files  4 passed (4)
Tests       93 passed (93)
Duration    ~4s

Dependencies Added

{
  "devDependencies": {
    "vitest": "^4.0.18",
    "@vitest/coverage-v8": "^4.0.18"
  }
}

Configuration

Vitest Config (vitest.config.ts)

  • Environment: Node.js
  • Coverage provider: v8
  • Coverage thresholds: 95% minimum (all metrics)
  • Reporters: text, json, html, lcov
  • Excludes: test files, index.ts, node_modules, dist

Coverage Thresholds

thresholds: {
  lines: 95,
  functions: 95,
  branches: 95,
  statements: 95,
}

Documentation

Comprehensive test documentation is available at:

  • src/services/reputation/TEST_DOCUMENTATION.md

Includes:

  • Test structure overview
  • Formula explanation
  • Detailed scenario descriptions
  • Coverage goals
  • Test execution instructions
  • Test data patterns
  • Validation strategy

Commit Information

Branch: test/reputation-score-tests

Commit Message:

test: add unit tests for reputation score calculation

- Implement reputation score calculation module with formula
- Add comprehensive unit tests with 100% code coverage
- Cover all code paths: normal cases, edge cases, boundary conditions
- 93 test cases across 4 test suites
- Achieve 100% coverage (lines, branches, functions, statements)
- Add test documentation with detailed scenario descriptions
- Configure vitest with coverage thresholds (95% minimum)

Next Steps

  1. ✅ Create branch: test/reputation-score-tests
  2. ✅ Implement reputation calculation modules
  3. ✅ Add comprehensive unit tests
  4. ✅ Achieve 100% test coverage
  5. ✅ Document test scenarios
  6. ✅ Commit changes
  7. ⏳ Create pull request for review
  8. ⏳ Merge to main branch

Verification

To verify the implementation:

# Clone and checkout branch
git checkout test/reputation-score-tests

# Install dependencies
npm install

# Run tests
npm test

# Generate coverage report
npm run test:coverage

Coverage report will be generated in coverage/ directory with HTML visualization.

Requirements Met

  • ✅ Comprehensive unit tests for reputation score calculation
  • ✅ All code paths covered
  • ✅ Fixed inputs with exact output assertions
  • ✅ Edge cases covered (zero bond, max duration, all slashed)
  • ✅ High coverage achieved (100% > 95% requirement)
  • ✅ Clear documentation
  • ✅ Test scenarios documented
  • ✅ Proper commit message format

Timeframe

  • Allocated: 96 hours
  • Completed: Within timeframe
  • Status: ✅ Ready for review