feat: 重做阅读找答案题与 AI 情境对话，并归拢本地识别、查词等既有改动
阅读"在对话里找到答案"： - 16 道题全部重写，干扰项真实出现在对话里，靠说话人归属或否定句才能作答 - 选项按题目内容确定性打乱，答案不再固定排第一；听力环节同样处理 - 去掉超纲干扰项、重复题干，收紧自由作答匹配（过去单个字母也能判对） AI 情境对话： - 提示词区分"AI 这一句要做什么"与"学习者随后要完成什么"，并下发已教词句清单 - JSON 只强制 reply，translation/feedback 可选；不再索要用不上的 slots/evidence - AI 不可用时页面明确提示当前回复来自内置示范脚本 - 删掉按 stage 下标猜中文翻译的兜底，避免译文与英文对不上 - 整课对话改用逐轮必需表达校验，替换"关键词沾边就算过"；修正自由场景正则误伤 - 总结的"完成任务"按实际通过的轮次生成；模型点评只在结束页呈现一次 - 自由场景支持草稿续练（独立存储槽）；修正回答轮数文案与永不解锁的场景标注 同时提交此前工作区中累积的改动：SenseVoice 本地识别、查词/句型解析卡、 复习与测评页调整等，并补充对话校验、选项分布和句子解析的测试。 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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shenlei
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import 'package:flutter/material.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:kouyu_english/core/ai_service.dart';
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import 'package:kouyu_english/core/app_state.dart';
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import 'package:kouyu_english/core/models.dart';
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import 'package:kouyu_english/widgets/lexicon_lookup.dart';
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void main() {
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group('Sentence and Phrase Parsing Logic', () {
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test('isSentenceQuery correctly detects sentences vs words', () {
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expect(isSentenceQuery('apple'), isFalse);
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expect(isSentenceQuery('check in'), isFalse);
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expect(isSentenceQuery('Where is the subway?'), isTrue);
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expect(isSentenceQuery("I'd like to check in."), isTrue);
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expect(isSentenceQuery('This is a longer sentence with more than three words'), isTrue);
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});
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test('extractCourseLexiconPhrases finds embedded course lexicon items', () {
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final matches = extractCourseLexiconPhrases("Hello, nice to meet you, where's the taxi?");
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expect(matches, isNotEmpty);
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final words = matches.map((m) => m.word.toLowerCase()).toList();
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expect(words.any((w) => w.contains('nice to meet you')), isTrue);
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});
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});
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group('Models Serialization', () {
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test('PhraseBreakdownItem serialization round-trip', () {
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const item = PhraseBreakdownItem(
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phrase: 'check in',
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meaning: '办理入住/值机',
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ipa: '/tʃek ɪn/',
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usageNote: '连读发音，酒店或机场常用',
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);
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final json = item.toJson();
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final parsed = PhraseBreakdownItem.fromJson(json);
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expect(parsed.phrase, 'check in');
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expect(parsed.meaning, '办理入住/值机');
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expect(parsed.ipa, '/tʃek ɪn/');
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expect(parsed.usageNote, '连读发音，酒店或机场常用');
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});
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test('SentenceAnalysisResult serialization round-trip', () {
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final result = SentenceAnalysisResult(
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originalText: "I would like to check in, please.",
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translation: '我想办理入住手续，谢谢。',
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sentencePattern: "I would like to + 动词原形 (礼貌表达需求)",
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grammarNote: 'would like 语气委婉客气，适合服务场景。',
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pronunciationTips: 'would like 发音轻柔，check in 发生连读。',
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phrases: const [
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PhraseBreakdownItem(
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phrase: 'would like to',
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meaning: '想要做某事（委婉）',
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),
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PhraseBreakdownItem(
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phrase: 'check in',
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meaning: '办理入住',
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ipa: '/tʃek ɪn/',
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),
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],
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provider: 'mock',
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model: 'test-model',
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createdAt: DateTime.utc(2026, 9, 16, 10, 0, 0),
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);
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final json = result.toJson();
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final parsed = SentenceAnalysisResult.fromJson(json);
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expect(parsed.originalText, result.originalText);
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expect(parsed.translation, result.translation);
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expect(parsed.sentencePattern, result.sentencePattern);
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expect(parsed.grammarNote, result.grammarNote);
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expect(parsed.pronunciationTips, result.pronunciationTips);
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expect(parsed.phrases.length, 2);
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expect(parsed.phrases[0].phrase, 'would like to');
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expect(parsed.phrases[1].ipa, '/tʃek ɪn/');
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expect(parsed.provider, 'mock');
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expect(parsed.model, 'test-model');
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});
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});
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group('AiService Mock Sentence Analysis', () {
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test('returns structured breakdown for would like', () async {
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final analysis = await AiService.instance.analyzeSentence(
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provider: AiProviderType.mock,
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endpoint: '',
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model: 'mock',
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text: 'I would like a cup of tea.',
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);
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expect(analysis, isNotNull);
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expect(analysis!.translation, contains('想要'));
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expect(analysis.sentencePattern, contains('would like'));
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expect(analysis.pronunciationTips, isNotNull);
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expect(analysis.phrases, isNotEmpty);
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expect(analysis.phrases.any((p) => p.phrase == 'would like'), isTrue);
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});
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test('returns structured breakdown for where is', () async {
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final analysis = await AiService.instance.analyzeSentence(
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provider: AiProviderType.mock,
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endpoint: '',
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model: 'mock',
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text: 'Where is the gate?',
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);
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expect(analysis, isNotNull);
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expect(analysis!.translation, contains('在哪里'));
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expect(analysis.sentencePattern, contains('Where is'));
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expect(analysis.phrases.any((p) => p.phrase == 'where is'), isTrue);
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});
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test('returns structured fallback for generic sentence', () async {
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final analysis = await AiService.instance.analyzeSentence(
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provider: AiProviderType.mock,
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endpoint: '',
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model: 'mock',
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text: 'The weather is very sunny today.',
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);
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expect(analysis, isNotNull);
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expect(analysis!.translation, isNotEmpty);
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expect(analysis.sentencePattern, isNotEmpty);
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expect(analysis.grammarNote, isNotEmpty);
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});
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});
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group('AppState Sentence Analysis & Review Integration', () {
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test('caching and retrieving sentence analyses with query normalization', () {
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final state = AppState();
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final result = SentenceAnalysisResult(
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originalText: ' Where is the bus stop? ',
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translation: '请问公交站在哪里？',
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sentencePattern: 'Where is + 地点',
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createdAt: DateTime.now(),
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);
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state.cacheSentenceAnalysis(result);
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expect(state.sentenceAnalysisFor('where is the bus stop?'), isNotNull);
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expect(state.sentenceAnalysisFor('WHERE IS THE BUS STOP? '), isNotNull);
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expect(state.sentenceAnalysisFor('where is the bus stop?')?.translation, '请问公交站在哪里？');
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state.removeSentenceAnalysis('where is the bus stop?');
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expect(state.sentenceAnalysisFor('where is the bus stop?'), isNull);
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});
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test('addPhraseToReview converts phrase breakdown into vocabulary item in review queue', () {
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final state = AppState();
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state.addPhraseToReview(
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phrase: 'check in',
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meaning: '办理登机或入住',
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ipa: '/tʃek ɪn/',
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usageNote: '酒店机场高频词',
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contextSentence: "I'd like to check in please.",
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);
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expect(state.reviewQueue.any((r) => r.target == 'check in'), isTrue);
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final saved = state.reviewQueue.firstWhere((r) => r.target == 'check in');
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expect(saved.hint, contains('办理登机或入住'));
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expect(saved.hint, contains('酒店机场高频词'));
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expect(saved.prompt, "I'd like to check in please.");
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});
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});
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group('UI Lookup Sheet Sentence Analysis View', () {
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testWidgets('renders sentence analysis result cards when cached', (tester) async {
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final state = AppState();
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final analysis = SentenceAnalysisResult(
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originalText: 'Where is the departure gate?',
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translation: '请问登机口在哪里？',
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sentencePattern: 'Where is + 目的地',
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grammarNote: 'where 引导的疑问句，注意语调。',
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pronunciationTips: 'Where 与 is 自然连读。',
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phrases: const [
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PhraseBreakdownItem(
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phrase: 'departure gate',
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ipa: '/dɪˈpɑːrtʃər ɡeɪt/',
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meaning: '登机口',
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usageNote: '机场核心词汇',
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),
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],
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provider: 'mock',
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createdAt: DateTime.now(),
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);
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state.cacheSentenceAnalysis(analysis);
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await tester.pumpWidget(
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MaterialApp(
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home: Scaffold(
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body: Builder(
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builder: (context) => ElevatedButton(
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onPressed: () => showLexiconLookup(
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context,
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state: state,
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initialText: 'Where is the departure gate?',
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),
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child: const Text('查句'),
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),
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),
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),
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),
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);
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await tester.tap(find.text('查句'));
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await tester.pumpAndSettle();
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expect(find.text('查词与整句深度解析'), findsOneWidget);
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expect(find.text('中文整句翻译'), findsOneWidget);
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expect(find.text('请问登机口在哪里？'), findsOneWidget);
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expect(find.text('核心句型'), findsOneWidget);
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expect(find.text('Where is + 目的地'), findsOneWidget);
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expect(find.text('口语连读与发音'), findsOneWidget);
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expect(find.text('重点短语与搭配 (1)'), findsOneWidget);
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expect(find.text('departure gate'), findsOneWidget);
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expect(find.text('登机口'), findsOneWidget);
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expect(find.text('加复习'), findsOneWidget);
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// Scroll to '加复习' and tap
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await tester.ensureVisible(find.text('加复习'));
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await tester.pumpAndSettle();
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await tester.tap(find.text('加复习'));
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await tester.pumpAndSettle();
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expect(state.reviewQueue.any((r) => r.target == 'departure gate'), isTrue);
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expect(find.text('已在复习'), findsOneWidget);
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});
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});
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}
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