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denoland-deno/cli/tests/node_compat/test/parallel/test-whatwg-encoding-custom-textdecoder-ignorebom.js
Yoshiya Hinosawa 6915a9b7a7
test(ext/node): more node compat tests (#17827)
This PR adds the remaining ~650 Node.js compat test cases from std/node.

Among these 650 cases, about 130 cases are now failing. These failing
cases are prefixed with `TODO:` in `tests/node_compat/config.json`.
These will be addressed in later PRs.
2023-02-20 16:35:04 +01:00

37 lines
1.1 KiB
JavaScript

// 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 "node/_tools/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');
});