1 files changed, 61 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-buffer-fakes.js b/tests/node_compat/test/parallel/test-buffer-fakes.js
new file mode 100644
index 000000000..2e25d6219
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-buffer-fakes.js
@@ -0,0 +1,61 @@
+// 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';
+
+require('../common');
+const assert = require('assert');
+
+function FakeBuffer() { }
+Object.setPrototypeOf(FakeBuffer, Buffer);
+Object.setPrototypeOf(FakeBuffer.prototype, Buffer.prototype);
+
+const fb = new FakeBuffer();
+
+assert.throws(function() {
+  Buffer.from(fb);
+}, TypeError);
+
+assert.throws(function() {
+  +Buffer.prototype; // eslint-disable-line no-unused-expressions
+}, TypeError);
+
+assert.throws(function() {
+  Buffer.compare(fb, Buffer.alloc(0));
+}, TypeError);
+
+assert.throws(function() {
+  fb.write('foo');
+}, TypeError);
+
+assert.throws(function() {
+  Buffer.concat([fb, fb]);
+}, TypeError);
+
+assert.throws(function() {
+  fb.toString();
+}, TypeError);
+
+assert.throws(function() {
+  fb.equals(Buffer.alloc(0));
+}, TypeError);
+
+assert.throws(function() {
+  fb.indexOf(5);
+}, TypeError);
+
+assert.throws(function() {
+  fb.readFloatLE(0);
+}, TypeError);
+
+assert.throws(function() {
+  fb.writeFloatLE(0);
+}, TypeError);
+
+assert.throws(function() {
+  fb.fill(0);
+}, TypeError);