fix(ingestion): trigger deterministic Eleventy builds on publish and unpublish

test/ingestion-api.test.js

@@ -3,7 +3,7 @@ import assert from "node:assert/strict";
 import fs from "node:fs";
 import path from "node:path";
 import http from "node:http";
-import { createServer } from "../server.js";
+import { createServer, triggerEleventyBuild } from "../server.js";
 
 const TEST_SECRET = "super-secret-test-token";
 
@@ -274,3 +274,12 @@ test("Ingestion API: adversarial protection against path traversal in slug and D
     fs.rmSync(tmpPosts, { recursive: true, force: true });
   }
 });
+
+test("Ingestion API: triggerEleventyBuild builds site and handles concurrency", async () => {
+  assert.strictEqual(typeof triggerEleventyBuild, "function");
+  // Trigger two concurrent calls to assert queuing does not crash or throw
+  const [b1, b2] = await Promise.all([triggerEleventyBuild(), triggerEleventyBuild()]);
+  assert.strictEqual(b1, undefined);
+  assert.strictEqual(b2, undefined);
+});
+