test: add test for internalConnect() when address type is IPv6

PR-URL: https://github.com/nodejs/node/pull/22444
Reviewed-By: Refael Ackermann <refack@gmail.com>

1 files changed, 25 insertions, 6 deletions

diff --git a/test/sequential/test-net-connect-local-error.js b/test/sequential/test-net-connect-local-error.js
index 205ff872cd..6f5139aefb 100644
--- a/test/sequential/test-net-connect-local-error.js
+++ b/test/sequential/test-net-connect-local-error.js
@@ -6,20 +6,39 @@ const net = require('net');
 // EADDRINUSE is expected to occur on FreeBSD
 // Ref: https://github.com/nodejs/node/issues/13055
 const expectedErrorCodes = ['ECONNREFUSED', 'EADDRINUSE'];
-const client = net.connect({
+
+const optionsIPv4 = {
   port: common.PORT,
   localPort: common.PORT + 1,
   localAddress: common.localhostIPv4
-});
+};
+
+const optionsIPv6 = {
+  host: common.localhostIPv6,
+  port: common.PORT + 2,
+  localPort: common.PORT + 3,
+  localAddress: common.localhostIPv6
+};
 
-client.on('error', common.mustCall(function onError(err) {
+function onError(err, options) {
   assert.ok(expectedErrorCodes.includes(err.code));
   assert.strictEqual(err.syscall, 'connect');
-  assert.strictEqual(err.localPort, common.PORT + 1);
-  assert.strictEqual(err.localAddress, common.localhostIPv4);
+  assert.strictEqual(err.localPort, options.localPort);
+  assert.strictEqual(err.localAddress, options.localAddress);
   assert.strictEqual(
     err.message,
     `connect ${err.code} ${err.address}:${err.port} ` +
     `- Local (${err.localAddress}:${err.localPort})`
   );
-}));
+}
+
+const clientIPv4 = net.connect(optionsIPv4);
+clientIPv4.on('error', common.mustCall((err) => onError(err, optionsIPv4)));
+
+if (!common.hasIPv6) {
+  common.printSkipMessage('ipv6 part of test, no IPv6 support');
+  return;
+}
+
+const clientIPv6 = net.connect(optionsIPv6);
+clientIPv6.on('error', common.mustCall((err) => onError(err, optionsIPv6)));