feat: improve AI dialogue evaluation and capability boundaries

2026-09-19 18:58:14 -07:00
parent 335d0304b1
commit 7306dc0f85
23 changed files with 1308 additions and 452 deletions
@@ -0,0 +1,60 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:kouyu_english/core/ai_service.dart';
+import 'package:kouyu_english/core/models.dart';
+
+void main() {
+  test('AI capability registry exposes stable bounded contracts', () {
+    final descriptors = AiService.instance.capabilities.descriptors;
+
+    expect(descriptors.map((item) => item.id).toSet(), {
+      'speech-transcription',
+      'lexicon-explanation',
+      'dialogue-coach',
+      'answer-evaluation',
+      'review-generation',
+    });
+    expect(
+      descriptors.map((item) => item.id).toSet(),
+      hasLength(descriptors.length),
+    );
+    expect(descriptors, everyElement(isA<AiCapabilityDescriptor>()));
+    expect(
+      descriptors,
+      everyElement(
+        predicate<AiCapabilityDescriptor>(
+          (item) => item.promptVersion > 0 && item.outputContract.isNotEmpty,
+        ),
+      ),
+    );
+  });
+
+  test(
+    'lexicon capability routes through the existing validated service',
+    () async {
+      final result = await AiService.instance.capabilities.lexicon
+          .analyzeSentence(
+            provider: AiProviderType.mock,
+            endpoint: '',
+            model: '',
+            text: "I'd like to check in, please.",
+          );
+
+      expect(result, isNotNull);
+      expect(result!.translation, isNotEmpty);
+      expect(result.provider, 'mock');
+    },
+  );
+
+  test('dialogue capability preserves mock fallback behavior', () async {
+    final result = await AiService.instance.capabilities.dialogue.reply(
+      provider: AiProviderType.mock,
+      endpoint: '',
+      model: '',
+      history: const [],
+      aiGoal: 'Ask the learner how they are.',
+      learnerTask: 'Say how they feel.',
+    );
+
+    expect(result, isNull);
+  });
+}