336 lines
12 KiB
C#
336 lines
12 KiB
C#
using DramaLing.Api.Models.Entities;
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using DramaLing.Api.Services;
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using Microsoft.Extensions.Logging;
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using Moq;
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namespace DramaLing.Api.Tests.Services;
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/// <summary>
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/// QuestionGeneratorService 整合測試
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/// </summary>
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public class QuestionGeneratorServiceTests : TestBase
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{
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private readonly QuestionGeneratorService _questionService;
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private readonly OptionsVocabularyService _optionsService;
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private readonly Mock<ILogger<QuestionGeneratorService>> _mockQuestionLogger;
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private readonly Mock<ILogger<OptionsVocabularyService>> _mockOptionsLogger;
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public QuestionGeneratorServiceTests()
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{
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_mockQuestionLogger = CreateMockLogger<QuestionGeneratorService>();
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_mockOptionsLogger = CreateMockLogger<OptionsVocabularyService>();
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_optionsService = new OptionsVocabularyService(DbContext, MemoryCache, _mockOptionsLogger.Object);
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_questionService = new QuestionGeneratorService(DbContext, _optionsService, _mockQuestionLogger.Object);
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}
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#region Vocab Choice Tests
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[Fact]
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public async Task GenerateQuestionAsync_VocabChoice_WithSufficientVocabulary_ShouldUseSmartOptions()
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{
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// Arrange
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await SeedTestData();
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var flashcard = CreateTestFlashcard("beautiful", "B1", "adjective");
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "vocab-choice");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("vocab-choice");
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result.Options.Should().HaveCount(4); // 正確答案 + 3個干擾選項
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result.Options.Should().Contain("beautiful");
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result.CorrectAnswer.Should().Be("beautiful");
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// 驗證干擾選項來自智能詞彙庫
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var distractors = result.Options!.Where(o => o != "beautiful").ToList();
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distractors.Should().HaveCount(3);
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}
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[Fact]
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public async Task GenerateQuestionAsync_VocabChoice_WithInsufficientVocabulary_ShouldUseFallback()
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{
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// Arrange
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await SeedLimitedData();
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var flashcard = CreateTestFlashcard("target", "C2", "idiom"); // 使用較少見的組合
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "vocab-choice");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("vocab-choice");
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result.Options.Should().HaveCount(4); // 仍應該有4個選項（使用回退機制）
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result.CorrectAnswer.Should().Be("target");
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}
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[Fact]
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public async Task GenerateQuestionAsync_VocabChoice_ShouldUseFlashcardProperties()
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{
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// Arrange
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await SeedTestData();
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var flashcard = CreateTestFlashcard("computer", "B2", "noun");
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "vocab-choice");
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// Assert
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result.Should().NotBeNull();
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result.CorrectAnswer.Should().Be("computer");
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// 驗證使用了 Flashcard 的 DifficultyLevel 和 PartOfSpeech
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// 這可以通過檢查生成的干擾選項是否符合相應的 CEFR 等級和詞性來間接驗證
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}
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[Fact]
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public async Task GenerateQuestionAsync_VocabChoice_WithNullFlashcardProperties_ShouldUseDefaults()
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{
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// Arrange
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await SeedTestData();
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var flashcard = CreateTestFlashcard("test", null, null); // 空的屬性
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "vocab-choice");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("vocab-choice");
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result.CorrectAnswer.Should().Be("test");
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// 應該使用預設值 B1 和 noun
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}
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#endregion
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#region Fill Blank Tests
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[Fact]
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public async Task GenerateQuestionAsync_FillBlank_WithValidExample_ShouldCreateBlankedSentence()
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{
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// Arrange
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var flashcard = CreateTestFlashcard("beautiful", "B1", "adjective", "This is a beautiful flower.");
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "sentence-fill");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("sentence-fill");
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result.BlankedSentence.Should().Contain("______");
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result.BlankedSentence.Should().NotContain("beautiful");
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result.CorrectAnswer.Should().Be("beautiful");
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result.Sentence.Should().Be("This is a beautiful flower.");
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}
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[Fact]
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public async Task GenerateQuestionAsync_FillBlank_WithoutExample_ShouldThrowException()
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{
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// Arrange
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var flashcard = CreateTestFlashcard("test", "B1", "noun", null);
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// Act & Assert
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await Assert.ThrowsAsync<ArgumentException>(
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() => _questionService.GenerateQuestionAsync(flashcard.Id, "sentence-fill"));
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}
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#endregion
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#region Sentence Reorder Tests
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[Fact]
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public async Task GenerateQuestionAsync_SentenceReorder_ShouldScrambleWords()
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{
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// Arrange
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var flashcard = CreateTestFlashcard("test", "B1", "noun", "This is a simple test sentence.");
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "sentence-reorder");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("sentence-reorder");
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result.ScrambledWords.Should().NotBeNull();
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result.ScrambledWords!.Length.Should().BeGreaterThan(0);
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result.CorrectAnswer.Should().Be("This is a simple test sentence.");
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// 驗證包含所有單字（忽略順序）
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var originalWords = "This is a simple test sentence."
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.Split(' ', StringSplitOptions.RemoveEmptyEntries)
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.Select(w => w.Trim('.', ',', '!', '?', ';', ':'));
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foreach (var word in originalWords)
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{
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result.ScrambledWords.Should().Contain(word);
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}
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}
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#endregion
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#region Sentence Listening Tests
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[Fact]
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public async Task GenerateQuestionAsync_SentenceListening_ShouldProvideOptions()
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{
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// Arrange
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await SeedFlashcardsWithExamples();
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var flashcard = CreateTestFlashcard("test", "B1", "noun", "This is a test sentence.");
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "sentence-listening");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("sentence-listening");
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result.Options.Should().HaveCount(4);
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result.Options.Should().Contain("This is a test sentence.");
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result.CorrectAnswer.Should().Be("This is a test sentence.");
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result.AudioUrl.Should().Contain(flashcard.Id.ToString());
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}
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#endregion
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#region Error Handling Tests
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[Fact]
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public async Task GenerateQuestionAsync_WithNonExistentFlashcard_ShouldThrowException()
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{
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// Act & Assert
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await Assert.ThrowsAsync<ArgumentException>(
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() => _questionService.GenerateQuestionAsync(Guid.NewGuid(), "vocab-choice"));
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}
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[Fact]
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public async Task GenerateQuestionAsync_WithUnsupportedQuestionType_ShouldReturnBasicQuestion()
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{
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// Arrange
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var flashcard = CreateTestFlashcard("test", "B1", "noun");
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "unsupported-type");
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// Assert
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result.Should().NotBeNull();
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result.QuestionType.Should().Be("unsupported-type");
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result.CorrectAnswer.Should().Be("test");
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}
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#endregion
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#region Performance Tests
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[Fact]
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public async Task GenerateQuestionAsync_ShouldCompleteWithinReasonableTime()
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{
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// Arrange
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await SeedTestData();
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var flashcard = CreateTestFlashcard("performance", "B1", "noun");
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var stopwatch = System.Diagnostics.Stopwatch.StartNew();
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// Act
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var result = await _questionService.GenerateQuestionAsync(flashcard.Id, "vocab-choice");
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// Assert
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stopwatch.Stop();
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result.Should().NotBeNull();
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stopwatch.ElapsedMilliseconds.Should().BeLessThan(500); // 應在500ms內完成
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}
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#endregion
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#region Helper Methods
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private async Task SeedTestData()
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{
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var vocabularies = new[]
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{
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "wonderful", CEFRLevel = "B1", PartOfSpeech = "adjective", WordLength = 9, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "amazing", CEFRLevel = "B1", PartOfSpeech = "adjective", WordLength = 7, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "fantastic", CEFRLevel = "B2", PartOfSpeech = "adjective", WordLength = 9, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "excellent", CEFRLevel = "A2", PartOfSpeech = "adjective", WordLength = 9, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "computer", CEFRLevel = "B1", PartOfSpeech = "noun", WordLength = 8, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "keyboard", CEFRLevel = "B1", PartOfSpeech = "noun", WordLength = 8, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "monitor", CEFRLevel = "B2", PartOfSpeech = "noun", WordLength = 7, IsActive = true },
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};
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DbContext.OptionsVocabularies.AddRange(vocabularies);
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await DbContext.SaveChangesAsync();
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}
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private async Task SeedLimitedData()
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{
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var vocabularies = new[]
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{
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "cat", CEFRLevel = "A1", PartOfSpeech = "noun", WordLength = 3, IsActive = true },
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new OptionsVocabulary { Id = Guid.NewGuid(), Word = "dog", CEFRLevel = "A1", PartOfSpeech = "noun", WordLength = 3, IsActive = true }
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};
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DbContext.OptionsVocabularies.AddRange(vocabularies);
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await DbContext.SaveChangesAsync();
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}
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private async Task SeedFlashcardsWithExamples()
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{
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var user = new User { Id = Guid.NewGuid(), Email = "test@example.com", Username = "testuser" };
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DbContext.Users.Add(user);
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var flashcards = new[]
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{
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new Flashcard
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{
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Id = Guid.NewGuid(),
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UserId = user.Id,
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Word = "example1",
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Translation = "範例1",
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Definition = "第一個範例",
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Example = "This is the first example sentence.",
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DifficultyLevel = "B1",
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PartOfSpeech = "noun"
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},
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new Flashcard
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{
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Id = Guid.NewGuid(),
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UserId = user.Id,
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Word = "example2",
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Translation = "範例2",
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Definition = "第二個範例",
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Example = "This is the second example sentence.",
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DifficultyLevel = "B1",
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PartOfSpeech = "noun"
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}
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};
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DbContext.Flashcards.AddRange(flashcards);
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await DbContext.SaveChangesAsync();
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}
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private Flashcard CreateTestFlashcard(string word, string? difficultyLevel, string? partOfSpeech, string? example = null)
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{
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var user = new User { Id = Guid.NewGuid(), Email = "test@example.com", Username = "testuser" };
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DbContext.Users.Add(user);
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var flashcard = new Flashcard
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{
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Id = Guid.NewGuid(),
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UserId = user.Id,
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Word = word,
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Translation = $"{word} 的翻譯",
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Definition = $"{word} 的定義",
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Example = example,
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DifficultyLevel = difficultyLevel,
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PartOfSpeech = partOfSpeech
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};
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DbContext.Flashcards.Add(flashcard);
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DbContext.SaveChanges();
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return flashcard;
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}
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#endregion
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protected override void Dispose()
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{
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ClearDatabase();
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base.Dispose();
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}
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} |