feat(review-workflow): enforce single terminal review decision per review run (#211)

tests/test_mcp_server.py

@@ -821,11 +821,16 @@ class TestReviewPR(unittest.TestCase):
             {"login": "jcwalker3"}, # /api/v1/user (eligibility)
             {"state": "open", "head": {"sha": "abc1234"}, "mergeable": True, "user": {"login": "jcwalker3"}}, # /pulls/1
         ]
+        from mcp_server import init_review_decision_lock
+        init_review_decision_lock("prgs", "review_pr")
+        gitea_mark_final_review_decision(1, "approve", remote="prgs")
         result = gitea_review_pr(
             pr_number=1,
             event="APPROVE",
             body="Self approve",
-            merge=False
+            merge=False,
+            remote="prgs",
+            final_review_decision_ready=True,
         )
         self.assertFalse(result["success"])
         self.assertIn("Review submission failed eligibility gates", result["message"])
@@ -1773,6 +1778,65 @@ class TestSubmitPrReview(unittest.TestCase):
         self.assertIn("[REDACTED]", blob)
         self.assertNotIn("abc-secret-xyz", blob)
 
+    def test_authorize_review_correction_success(self):
+        from mcp_server import _load_review_decision_lock, _save_review_decision_lock
+        lock = _load_review_decision_lock() or {}
+        lock["live_mutations"] = [{"pr_number": 8, "action": "approve", "review_id": 42, "review_state": "approve"}]
+        _save_review_decision_lock(lock)
+        r = gitea_authorize_review_correction(prior_review_id=42, prior_review_state="approve", reason="typo")
+        self.assertTrue(r["authorized"])
+        lock = _load_review_decision_lock()
+        self.assertTrue(lock["correction_authorized"])
+
+    def test_authorize_review_correction_mismatch(self):
+        from mcp_server import _load_review_decision_lock, _save_review_decision_lock
+        lock = _load_review_decision_lock() or {}
+        lock["live_mutations"] = [{"pr_number": 8, "action": "approve", "review_id": 42, "review_state": "approve"}]
+        _save_review_decision_lock(lock)
+        
+        # Mismatched ID
+        r = gitea_authorize_review_correction(prior_review_id=99, prior_review_state="approve", reason="typo")
+        self.assertFalse(r["authorized"])
+        self.assertTrue(any("prior review ID" in x for x in r["reasons"]))
+
+        # Mismatched State
+        r = gitea_authorize_review_correction(prior_review_id=42, prior_review_state="request_changes", reason="typo")
+        self.assertFalse(r["authorized"])
+        self.assertTrue(any("prior review state" in x for x in r["reasons"]))
+
+    @patch("mcp_server.api_request")
+    @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
+    def test_remote_org_repo_validation_mismatch(self, _auth, mock_api):
+        env = {"GITEA_PROFILE_NAME": "gitea-reviewer",
+               "GITEA_ALLOWED_OPERATIONS": "read,review,approve"}
+        with patch.dict(os.environ, env, clear=True):
+            # Mark decision for specific remote, org, repo
+            gitea_mark_final_review_decision(8, "approve", remote="prgs", org="MyOrg", repo="MyRepo")
+            
+            # Mismatched remote
+            r = gitea_submit_pr_review(
+                pr_number=8, action="approve", remote="dadeschools", org="MyOrg", repo="MyRepo",
+                final_review_decision_ready=True,
+            )
+            self.assertFalse(r["performed"])
+            self.assertTrue(any("ready remote" in x for x in r["reasons"]))
+
+            # Mismatched org
+            r = gitea_submit_pr_review(
+                pr_number=8, action="approve", remote="prgs", org="OtherOrg", repo="MyRepo",
+                final_review_decision_ready=True,
+            )
+            self.assertFalse(r["performed"])
+            self.assertTrue(any("ready org" in x for x in r["reasons"]))
+
+            # Mismatched repo
+            r = gitea_submit_pr_review(
+                pr_number=8, action="approve", remote="prgs", org="MyOrg", repo="OtherRepo",
+                final_review_decision_ready=True,
+            )
+            self.assertFalse(r["performed"])
+            self.assertTrue(any("ready repo" in x for x in r["reasons"]))
+
 
 if __name__ == "__main__":
     unittest.main()