1 files changed, 59 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-net-options-lookup.js b/tests/node_compat/test/parallel/test-net-options-lookup.js
new file mode 100644
index 000000000..d3ca0451c
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-net-options-lookup.js
@@ -0,0 +1,59 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const net = require('net');
+
+['foobar', 1, {}, []].forEach((input) => connectThrows(input));
+
+// Using port 0 as lookup is emitted before connecting.
+function connectThrows(input) {
+  const opts = {
+    host: 'localhost',
+    port: 0,
+    lookup: input
+  };
+
+  assert.throws(() => {
+    net.connect(opts);
+  }, {
+    code: 'ERR_INVALID_ARG_TYPE',
+    name: 'TypeError'
+  });
+}
+
+connectDoesNotThrow(() => {});
+
+function connectDoesNotThrow(input) {
+  const opts = {
+    host: 'localhost',
+    port: 0,
+    lookup: input
+  };
+
+  return net.connect(opts);
+}
+
+{
+  // Verify that an error is emitted when an invalid address family is returned.
+  const s = connectDoesNotThrow((host, options, cb) => {
+    if (options.all) {
+      cb(null, [{ address: '127.0.0.1', family: 100 }]);
+    } else {
+      cb(null, '127.0.0.1', 100);
+    }
+  });
+
+  s.on('error', common.expectsError({
+    code: 'ERR_INVALID_ADDRESS_FAMILY',
+    host: 'localhost',
+    port: 0,
+    message: 'Invalid address family: 100 localhost:0'
+  }));
+}