fix(Step9): 優先用 Gitea 狀態阻擋合併

app/gitea.test.js

@@ -1,7 +1,7 @@
 import { describe, it, afterEach, mock } from 'node:test';
 import assert from 'node:assert/strict';
 import axios from 'axios';
-import { getPRDiff, filterDiff, postComment, postPullReviewComment, postPullReview, getCommitMessageBySha, getBranchHeadCommitMessage, shouldSkipBotCommit, getBotReviewOutcome } from './gitea.js';
+import { getPRDiff, filterDiff, postComment, postPullReviewComment, postPullReview, getCommitMessageBySha, getBranchHeadCommitMessage, shouldSkipBotCommit, getBotReviewOutcome, blockPRMergeWithStatus } from './gitea.js';
 
 afterEach(() => mock.restoreAll());
 
@@ -57,6 +57,31 @@ describe('gitea', () => {
     await assert.rejects(() => postComment('test'), /api error/);
   });
 
+  it('blockPRMergeWithStatus creates a failure commit status on the PR head sha', async () => {
+    let capturedUrl, capturedBody, capturedOpts;
+    mock.method(axios, 'post', async (url, body, opts) => {
+      capturedUrl = url;
+      capturedBody = body;
+      capturedOpts = opts;
+      return { data: { id: 12 } };
+    });
+
+    const result = await blockPRMergeWithStatus({ sha: 'abc/123', criticalCount: 3 });
+
+    assert.deepEqual(result, { id: 12 });
+    assert.ok(capturedUrl.includes('/api/v1/repos/'));
+    assert.ok(capturedUrl.endsWith('/statuses/abc%2F123'));
+    assert.equal(capturedBody.state, 'failure');
+    assert.equal(capturedBody.context, 'ai-code-review/critical');
+    assert.ok(capturedBody.description.includes('3 個嚴重問題'));
+    assert.ok(capturedBody.target_url.includes('/pulls/'));
+    assert.ok(capturedOpts.headers['Authorization'].startsWith('token '));
+  });
+
+  it('blockPRMergeWithStatus rejects when commit sha is missing', async () => {
+    await assert.rejects(() => blockPRMergeWithStatus({ sha: '', criticalCount: 1 }), /缺少 PR head commit sha/);
+  });
+
   it('postPullReviewComment posts an inline review comment to the pulls reviews API', async () => {
     let capturedUrl, capturedBody, capturedOpts;
     mock.method(axios, 'post', async (url, body, opts) => {