test(pr-comments): 議題也讀得了，不再先打 PR 端點

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

test/pr-comments.test.js

@@ -25,10 +25,14 @@ function routes(overrides = {}, options = {}) {
     general = [],
     reviews = [],
     pull = { number: INDEX, title: 'feat/pr-comments/main', html_url: `https://x/${INDEX}`, state: 'open' },
+    isPull = true,
   } = options;
 
   const base = healthyRoutes(REPO, {
-    [`GET /api/v1/repos/${REPO}/pulls/${INDEX}`]: { status: 200, body: pull },
+    [`GET /api/v1/repos/${REPO}/issues/${INDEX}`]: {
+      status: 200,
+      body: { ...pull, ...(isPull ? { pull_request: { merged: false } } : {}) },
+    },
     [`GET /api/v1/repos/${REPO}/issues/${INDEX}/comments`]: {
       status: 200,
       body: general.map((c, i) => ({
@@ -357,18 +361,48 @@ test('帶出 PR 的識別資訊，讓回報不必再查一次', async (t) => {
   assert.equal(json.data.state, 'open');
 });
 
-test('PR 不存在時回可區分的錯誤碼', async (t) => {
+test('議題不存在時回可區分的錯誤碼', async (t) => {
   const stub = await withStub(t, {
-    [`GET /api/v1/repos/${REPO}/pulls/${INDEX}`]: { status: 404, body: { message: 'not found' } },
+    [`GET /api/v1/repos/${REPO}/issues/${INDEX}`]: { status: 404, body: { message: 'not found' } },
   }, FULL);
 
   const { code, json } = await run([], stub);
 
   assert.equal(code, 1);
-  assert.equal(json.error.code, 'PULL_NOT_FOUND');
+  assert.equal(json.error.code, 'ISSUE_NOT_FOUND');
   assert.match(json.error.message, new RegExp(String(INDEX)));
 });
 
+test('純議題也讀得到：先讀 issue 再決定要不要翻 review', async (t) => {
+  // 每個 PR 都是議題，議題不一定是 PR。先打 /pulls 的話，純議題會 404，
+  // 而 /sdlc-sync 的輸入正是純議題——整個流程在讀到第一則留言之前就斷了
+  const stub = await withStub(t, {}, {
+    isPull: false,
+    general: [{ body: '這顆議題上的決策', reactions: [] }],
+    reviews: [],
+  });
+
+  const { code, json } = await run([], stub);
+
+  assert.equal(code, 0, JSON.stringify(json));
+  assert.equal(json.data.類型, '議題');
+  assert.deepEqual(json.data.留言.map((c) => c.內容), ['這顆議題上的決策']);
+  assert.equal(
+    stub.requests.some((r) => r.path.includes('/pulls/')),
+    false,
+    '純議題不該去打 PR 的端點',
+  );
+});
+
+test('是 PR 時類型標成 PR，並照樣讀 review', async (t) => {
+  const stub = await withStub(t, {}, FULL);
+
+  const { json } = await run([], stub);
+
+  assert.equal(json.data.類型, 'PR');
+  assert.ok(json.data.留言.some((c) => c.類型 === '總評'));
+});
+
 // ── --dry-run ─────────────────────────────────────────────────────
 
 test('--dry-run 印出將發出的請求，且不碰 Gitea', async (t) => {
@@ -381,11 +415,8 @@ test('--dry-run 印出將發出的請求，且不碰 Gitea', async (t) => {
   assert.deepEqual(
     json.data.requests.map((r) => `${r.method} ${r.path}`),
     [
-      'GET /user',
+      `GET /repos/${REPO}/issues/${INDEX}`,
-      `GET /repos/${REPO}/pulls/${INDEX}`,
       `GET /repos/${REPO}/issues/${INDEX}/comments`,
-      `GET /repos/${REPO}/pulls/${INDEX}/reviews`,
-      `GET /repos/${REPO}/issues/${INDEX}/timeline`,
     ],
   );
   assert.match(json.data.note, /reaction|review/);