dns: fix test suite, part 3

PR-URL: #39987
Fixes: #31566
Refs: #6307
Refs: #20710
Refs: #38099
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>

test/parallel/test-net-dns-lookup.js

@@ -34,7 +34,8 @@ server.listen(0, common.mustCall(function() {
     .on('lookup', common.mustCall(function(err, ip, type, host) {
       assert.strictEqual(err, null);
       assert.strictEqual(ip, '127.0.0.1');
-      assert.strictEqual(type, 4);
+      assert.match(ip,/^(127\.0\.0\.1|::1)$/);
+      assert.match(type.toString, /^(4|6)$/);
       assert.strictEqual(host, 'localhost');
     }));
 }));

test/parallel/test-net-remote-address-port.js

@@ -28,7 +28,7 @@ const net = require('net');
 let conns_closed = 0;
 
 const remoteAddrCandidates = [ common.localhostIPv4 ];
-if (common.hasIPv6) remoteAddrCandidates.push('::ffff:127.0.0.1');
+if (common.hasIPv6) remoteAddrCandidates.push('::1', '::ffff:127.0.0.1');
 
 const remoteFamilyCandidates = ['IPv4'];
 if (common.hasIPv6) remoteFamilyCandidates.push('IPv6');

test/parallel/test-tcp-wrap-listen.js

@@ -14,7 +14,9 @@ const {
 
 const server = new TCP(TCPConstants.SOCKET);
 
-const r = server.bind(0);
+const r = (common.hasIPv6 ?
+  server.bind6('::', 0) :
+  server.bind('0.0.0.0', 0));
 assert.strictEqual(r, 0);
 let port = {};
 server.getsockname(port);