Fix pinned lookup for dual-stack HTTPS requests

scraper/test/source-broker.test.js

@@ -3,7 +3,7 @@
 const test = require('node:test');
 const assert = require('node:assert/strict');
 const { SlowHttp, StopScrapeError } = require('../lib/http');
-const { publicAddress, validateWeebRequest } = require('../plugins/broker');
+const { publicAddress, validateWeebRequest, pinnedLookup } = require('../plugins/broker');
 
 test('plugin broker rejects local, private, non-TLS, and cross-source URLs', () => {
   for (const address of ['127.0.0.1', '10.0.0.5', '192.168.1.1', '169.254.169.254', '::1', '::ffff:127.0.0.1']) {
@@ -17,6 +17,19 @@ test('plugin broker rejects local, private, non-TLS, and cross-source URLs', ()
   assert.doesNotThrow(() => validateWeebRequest('https://img.example/page.jpg'));
 });
 
+test('pinned DNS lookup supports both Node single-address and all-address requests', () => {
+  const lookup = pinnedLookup({ address: '1.1.1.1', family: 4 });
+  lookup('example.com', { all: false }, (error, address, family) => {
+    assert.equal(error, null);
+    assert.equal(address, '1.1.1.1');
+    assert.equal(family, 4);
+  });
+  lookup('example.com', { all: true }, (error, addresses) => {
+    assert.equal(error, null);
+    assert.deepEqual(addresses, [{ address: '1.1.1.1', family: 4 }]);
+  });
+});
+
 test('redirect hops are validated and paced before another request', async () => {
   const calls = [];
   const http = new SlowHttp({