Upload Kmake

test/parallel/test-worker-message-port-constructor.js

@@ -0,0 +1,27 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+
+const { MessageChannel, MessagePort } = require('worker_threads');
+
+// Make sure that `MessagePort` is the constructor for MessagePort instances,
+// but not callable.
+const { port1 } = new MessageChannel();
+
+assert(port1 instanceof MessagePort);
+assert.strictEqual(port1.constructor, MessagePort);
+
+assert.throws(() => MessagePort(), {
+  constructor: TypeError,
+  code: 'ERR_CONSTRUCT_CALL_INVALID'
+});
+
+assert.throws(() => new MessagePort(), {
+  constructor: TypeError,
+  code: 'ERR_CONSTRUCT_CALL_INVALID'
+});
+
+assert.throws(() => MessageChannel(), {
+  constructor: TypeError,
+  code: 'ERR_CONSTRUCT_CALL_REQUIRED'
+});