/** * FreshnessEvaluator テスト * * TSK-TEST-006 * REQ-FRESH-001: 情報鮮度自動評価 */ import { describe, it, expect, beforeEach, vi, afterEach } from 'vitest'; import { FreshnessEvaluator, type FreshnessLevel, type FreshnessResult, type FreshnessOptions, evaluateFreshness, extractDateFromHTML, extractDateFromText, calculateFreshnessLevel, calculateFreshnessScore, TOPIC_FRESHNESS_THRESHOLDS, DEFAULT_FRESHNESS_OPTIONS, } from '../freshness-evaluator.js'; describe('FreshnessEvaluator', () => { let evaluator: FreshnessEvaluator; const referenceDate = new Date('2024-06-01'); beforeEach(() => { evaluator = new FreshnessEvaluator({ referenceDate }); }); describe('evaluate', () => { it('最近の日付をfreshと判定する', () => { const html = ` コンテンツ `; const result = evaluator.evaluate(html); expect(result.level).toBe('fresh'); expect(result.daysOld).toBeLessThan(30); }); it('古い日付をoutdatedと判定する', () => { const html = ` コンテンツ `; const result = evaluator.evaluate(html); expect(result.level).toBe('outdated'); expect(result.daysOld).toBeGreaterThan(365); }); it('日付がない場合はunknownと判定する', () => { const html = '日付なしのコンテンツ'; const result = evaluator.evaluate(html); expect(result.level).toBe('unknown'); expect(result.confidence).toBe(0); }); }); describe('evaluateWithTopic', () => { it('ニュースは1日でstaleになる', () => { const html = ` ニュース記事 `; const result = evaluator.evaluateWithTopic(html, 'news'); // 2日前なのでニュースとしてはstale expect(['recent', 'stale']).toContain(result.level); }); it('学術論文は1年前でもfresh', () => { const html = ` 学術論文 `; const result = evaluator.evaluateWithTopic(html, 'academic'); expect(result.level).toBe('fresh'); }); it('未知のトピックはデフォルト閾値を使用する', () => { const html = ` コンテンツ `; const result = evaluator.evaluateWithTopic(html, 'unknown_topic'); expect(result.level).toBe('fresh'); }); }); describe('formatResult', () => { it('結果をフォーマットする', () => { const result: FreshnessResult = { level: 'fresh', publishDate: new Date('2024-05-15'), confidence: 0.9, daysOld: 17, score: 85, }; const formatted = evaluator.formatResult(result); expect(formatted).toContain('FRESH'); expect(formatted).toContain('🟢'); expect(formatted).toContain('17日'); expect(formatted).toContain('85/100'); }); it('警告を含める', () => { const result: FreshnessResult = { level: 'stale', publishDate: new Date('2023-01-01'), confidence: 0.8, daysOld: 500, score: 30, warnings: ['情報が古くなっています'], }; const formatted = evaluator.formatResult(result); expect(formatted).toContain('⚠️'); expect(formatted).toContain('警告'); }); }); describe('static methods', () => { it('getAvailableTopics が利用可能なトピックを返す', () => { const topics = FreshnessEvaluator.getAvailableTopics(); expect(topics).toContain('news'); expect(topics).toContain('academic'); expect(topics).toContain('technology'); }); it('getTopicThresholds がトピックの閾値を返す', () => { const thresholds = FreshnessEvaluator.getTopicThresholds('news'); expect(thresholds).toBeDefined(); expect(thresholds?.fresh).toBe(1); expect(thresholds?.recent).toBe(7); }); it('getLevelDescription がレベル説明を返す', () => { expect(FreshnessEvaluator.getLevelDescription('fresh')).toContain('最新'); expect(FreshnessEvaluator.getLevelDescription('outdated')).toContain('古い'); }); it('getLevelEmoji が絵文字を返す', () => { expect(FreshnessEvaluator.getLevelEmoji('fresh')).toBe('🟢'); expect(FreshnessEvaluator.getLevelEmoji('outdated')).toBe('🔴'); }); }); }); describe('extractDateFromHTML', () => { it('JSON-LDから日付を抽出する', () => { const html = ` `; const result = extractDateFromHTML(html); expect(result.publishDate).toBeDefined(); expect(result.confidence).toBeGreaterThanOrEqual(0.9); expect(result.method).toBe('json-ld'); }); it('メタタグから日付を抽出する', () => { const html = ` `; const result = extractDateFromHTML(html); expect(result.publishDate).toBeDefined(); expect(result.publishDate?.getMonth()).toBe(3); // April = 3 }); it('time要素から日付を抽出する', () => { const html = ` 2024年5月10日 `; const result = extractDateFromHTML(html); expect(result.publishDate).toBeDefined(); expect(result.publishDate?.getDate()).toBe(10); }); it('更新日と公開日を区別する', () => { const html = ` `; const result = extractDateFromHTML(html); expect(result.publishDate).toBeDefined(); expect(result.updateDate).toBeDefined(); expect(result.updateDate?.getMonth()).toBe(5); // June = 5 }); }); describe('extractDateFromText', () => { it('日本語形式の日付を抽出する', () => { const result = extractDateFromText('公開日: 2024年3月15日'); expect(result).not.toBeNull(); expect(result?.date.getFullYear()).toBe(2024); expect(result?.date.getMonth()).toBe(2); // March = 2 expect(result?.date.getDate()).toBe(15); }); it('ISO形式の日付を抽出する', () => { const result = extractDateFromText('Date: 2024-04-20'); expect(result).not.toBeNull(); expect(result?.date.getFullYear()).toBe(2024); }); it('英語形式の日付を抽出する', () => { const result = extractDateFromText('Published on January 15, 2024'); expect(result).not.toBeNull(); expect(result?.date.getMonth()).toBe(0); // January = 0 }); it('更新日表記を優先する', () => { const result = extractDateFromText('公開: 2024年1月1日更新: 2024年6月1日'); expect(result).not.toBeNull(); expect(result?.date.getMonth()).toBe(5); // June = 5 (更新日を優先) }); }); describe('calculateFreshnessLevel', () => { it('freshThresholdDays以内はfresh', () => { const level = calculateFreshnessLevel(10, DEFAULT_FRESHNESS_OPTIONS); expect(level).toBe('fresh'); }); it('recentThresholdDays以内はrecent', () => { const level = calculateFreshnessLevel(60, DEFAULT_FRESHNESS_OPTIONS); expect(level).toBe('recent'); }); it('staleThresholdDays以内はstale', () => { const level = calculateFreshnessLevel(200, DEFAULT_FRESHNESS_OPTIONS); expect(level).toBe('stale'); }); it('staleThresholdDays超過はoutdated', () => { const level = calculateFreshnessLevel(500, DEFAULT_FRESHNESS_OPTIONS); expect(level).toBe('outdated'); }); it('負の日数はunknown', () => { const level = calculateFreshnessLevel(-1, DEFAULT_FRESHNESS_OPTIONS); expect(level).toBe('unknown'); }); }); describe('calculateFreshnessScore', () => { it('0日は100点', () => { const score = calculateFreshnessScore(0, DEFAULT_FRESHNESS_OPTIONS); expect(score).toBe(100); }); it('時間経過で減少する', () => { const score30 = calculateFreshnessScore(30, DEFAULT_FRESHNESS_OPTIONS); const score90 = calculateFreshnessScore(90, DEFAULT_FRESHNESS_OPTIONS); const score180 = calculateFreshnessScore(180, DEFAULT_FRESHNESS_OPTIONS); expect(score30).toBeGreaterThan(score90); expect(score90).toBeGreaterThan(score180); }); it('負の日数は0点', () => { const score = calculateFreshnessScore(-1, DEFAULT_FRESHNESS_OPTIONS); expect(score).toBe(0); }); it('スコアは0-100の範囲', () => { const score = calculateFreshnessScore(10000, DEFAULT_FRESHNESS_OPTIONS); expect(score).toBeGreaterThanOrEqual(0); expect(score).toBeLessThanOrEqual(100); }); }); describe('evaluateFreshness', () => { it('関数として直接呼び出せる', () => { const html = ` `; const result = evaluateFreshness(html, { referenceDate: new Date('2024-06-01') }); expect(result.level).toBe('fresh'); }); it('プレーンテキストを処理する', () => { const text = '更新日: 2024年5月15日\nこれはテキストコンテンツです。'; const result = evaluateFreshness(text, { referenceDate: new Date('2024-06-01') }); expect(result.level).toBeDefined(); expect(result.detectionMethod).toBe('text-extraction'); }); }); describe('TOPIC_FRESHNESS_THRESHOLDS', () => { it('ニュースの閾値が最も厳しい', () => { const news = TOPIC_FRESHNESS_THRESHOLDS.news; const academic = TOPIC_FRESHNESS_THRESHOLDS.academic; expect(news.fresh).toBeLessThan(academic.fresh); expect(news.stale).toBeLessThan(academic.stale); }); it('すべてのトピックに3つの閾値がある', () => { for (const [topic, thresholds] of Object.entries(TOPIC_FRESHNESS_THRESHOLDS)) { expect(thresholds.fresh).toBeDefined(); expect(thresholds.recent).toBeDefined(); expect(thresholds.stale).toBeDefined(); expect(thresholds.fresh).toBeLessThan(thresholds.recent); expect(thresholds.recent).toBeLessThan(thresholds.stale); } }); });