1 files changed, 37 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-whatwg-encoding-custom-textdecoder-ignorebom.js b/tests/node_compat/test/parallel/test-whatwg-encoding-custom-textdecoder-ignorebom.js
new file mode 100644
index 000000000..58488d25d
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-whatwg-encoding-custom-textdecoder-ignorebom.js
@@ -0,0 +1,37 @@
+// 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';
+
+// From: https://github.com/w3c/web-platform-tests/blob/7f567fa29c/encoding/textdecoder-ignorebom.html
+// This is the part that can be run without ICU
+
+require('../common');
+
+const assert = require('assert');
+
+const cases = [
+  {
+    encoding: 'utf-8',
+    bytes: [0xEF, 0xBB, 0xBF, 0x61, 0x62, 0x63]
+  },
+  {
+    encoding: 'utf-16le',
+    bytes: [0xFF, 0xFE, 0x61, 0x00, 0x62, 0x00, 0x63, 0x00]
+  },
+];
+
+cases.forEach((testCase) => {
+  const BOM = '\uFEFF';
+  let decoder = new TextDecoder(testCase.encoding, { ignoreBOM: true });
+  const bytes = new Uint8Array(testCase.bytes);
+  assert.strictEqual(decoder.decode(bytes), `${BOM}abc`);
+  decoder = new TextDecoder(testCase.encoding, { ignoreBOM: false });
+  assert.strictEqual(decoder.decode(bytes), 'abc');
+  decoder = new TextDecoder(testCase.encoding);
+  assert.strictEqual(decoder.decode(bytes), 'abc');
+});