feat(ai): 优化拆解目标和负责人推荐

apps/web/lib/ai-decompose-target.test.ts

@@ -0,0 +1,53 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { filterDecomposeResultByTarget } from './ai-decompose-target';
+import type { AgentDecomposeResult } from '@ftb/shared';
+
+function makeResult(): AgentDecomposeResult {
+  return {
+    report: { matched: [], reqOnly: [], noteOnly: [], ambiguous: [] },
+    devTaskDrafts: [
+      {
+        title: '实现登录表单',
+        categoryCode: 'frontend_development',
+        priority: 'P2',
+        aiEstimateHours: 0.5,
+        references: [{ type: 'requirement', id: 'REQ001', label: 'REQ001 登录' }],
+      },
+    ],
+    testCaseDrafts: [
+      {
+        title: '验证登录成功',
+        description: '输入正确账号密码后进入首页',
+        categoryCode: 'test_functional',
+        priority: 'P2',
+        aiEstimateHours: 0.2,
+        references: [{ type: 'requirement', id: 'REQ001', label: 'REQ001 登录' }],
+      },
+    ],
+  };
+}
+
+test('keeps only dev task drafts for dev task decomposition target', () => {
+  const original = makeResult();
+  const filtered = filterDecomposeResultByTarget(original, 'dev_tasks');
+
+  assert.equal(filtered.devTaskDrafts.length, 1);
+  assert.equal(filtered.testCaseDrafts.length, 0);
+  assert.equal(original.testCaseDrafts.length, 1);
+});
+
+test('keeps only test case drafts for test case decomposition target', () => {
+  const filtered = filterDecomposeResultByTarget(makeResult(), 'test_cases');
+
+  assert.equal(filtered.devTaskDrafts.length, 0);
+  assert.equal(filtered.testCaseDrafts.length, 1);
+});
+
+test('keeps both draft groups for all decomposition target', () => {
+  const filtered = filterDecomposeResultByTarget(makeResult(), 'all');
+
+  assert.equal(filtered.devTaskDrafts.length, 1);
+  assert.equal(filtered.testCaseDrafts.length, 1);
+});