1'use strict'; 2 3// From: https://github.com/w3c/web-platform-tests/blob/master/encoding/api-basics.html 4// This is the part that can be run without ICU 5 6require('../common'); 7 8const assert = require('assert'); 9 10function testDecodeSample(encoding, string, bytes) { 11 assert.strictEqual( 12 new TextDecoder(encoding).decode(new Uint8Array(bytes)), 13 string); 14 assert.strictEqual( 15 new TextDecoder(encoding).decode(new Uint8Array(bytes).buffer), 16 string); 17} 18 19// `z` (ASCII U+007A), cent (Latin-1 U+00A2), CJK water (BMP U+6C34), 20// G-Clef (non-BMP U+1D11E), PUA (BMP U+F8FF), PUA (non-BMP U+10FFFD) 21// byte-swapped BOM (non-character U+FFFE) 22const sample = 'z\xA2\u6C34\uD834\uDD1E\uF8FF\uDBFF\uDFFD\uFFFE'; 23 24{ 25 const encoding = 'utf-8'; 26 const string = sample; 27 const bytes = [ 28 0x7A, 0xC2, 0xA2, 0xE6, 0xB0, 0xB4, 29 0xF0, 0x9D, 0x84, 0x9E, 0xEF, 0xA3, 30 0xBF, 0xF4, 0x8F, 0xBF, 0xBD, 0xEF, 31 0xBF, 0xBE, 32 ]; 33 const encoded = new TextEncoder().encode(string); 34 assert.deepStrictEqual([].slice.call(encoded), bytes); 35 assert.strictEqual( 36 new TextDecoder(encoding).decode(new Uint8Array(bytes)), 37 string); 38 assert.strictEqual( 39 new TextDecoder(encoding).decode(new Uint8Array(bytes).buffer), 40 string); 41} 42 43testDecodeSample( 44 'utf-16le', 45 sample, 46 [ 47 0x7A, 0x00, 0xA2, 0x00, 0x34, 0x6C, 48 0x34, 0xD8, 0x1E, 0xDD, 0xFF, 0xF8, 49 0xFF, 0xDB, 0xFD, 0xDF, 0xFE, 0xFF, 50 ] 51); 52 53testDecodeSample( 54 'utf-16', 55 sample, 56 [ 57 0x7A, 0x00, 0xA2, 0x00, 0x34, 0x6C, 58 0x34, 0xD8, 0x1E, 0xDD, 0xFF, 0xF8, 59 0xFF, 0xDB, 0xFD, 0xDF, 0xFE, 0xFF, 60 ] 61); 62