85 lines
2.9 KiB
JavaScript
85 lines
2.9 KiB
JavaScript
/*
|
|
Copyright 2017 Vector Creations Ltd
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
import TextDecoderPolyfill from 'utils/TextDecoderPolyfill';
|
|
|
|
import * as testUtils from '../test-utils';
|
|
import expect from 'expect';
|
|
|
|
describe('textDecoderPolyfill', function() {
|
|
beforeEach(function() {
|
|
testUtils.beforeEach(this);
|
|
});
|
|
|
|
it('should correctly decode a range of strings', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
|
|
expect(decoder.decode(Uint8Array.of(65, 66, 67))).toEqual('ABC');
|
|
expect(decoder.decode(Uint8Array.of(0xC3, 0xA6))).toEqual('æ');
|
|
expect(decoder.decode(Uint8Array.of(0xE2, 0x82, 0xAC))).toEqual('€');
|
|
expect(decoder.decode(Uint8Array.of(0xF0, 0x9F, 0x92, 0xA9))).toEqual('\uD83D\uDCA9');
|
|
});
|
|
|
|
it('should ignore byte-order marks', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
expect(decoder.decode(Uint8Array.of(0xEF, 0xBB, 0xBF, 65)))
|
|
.toEqual('A');
|
|
});
|
|
|
|
it('should not ignore byte-order marks in the middle of the array', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
expect(decoder.decode(Uint8Array.of(65, 0xEF, 0xBB, 0xBF, 66)))
|
|
.toEqual('A\uFEFFB');
|
|
});
|
|
|
|
it('should reject overlong encodings', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
|
|
// euro, as 4 bytes
|
|
expect(decoder.decode(Uint8Array.of(65, 0xF0, 0x82, 0x82, 0xAC, 67)))
|
|
.toEqual('A\uFFFD\uFFFD\uFFFD\uFFFDC');
|
|
});
|
|
|
|
it('should reject 5 and 6-byte encodings', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
|
|
expect(decoder.decode(Uint8Array.of(65, 0xF8, 0x82, 0x82, 0x82, 0x82, 67)))
|
|
.toEqual('A\uFFFD\uFFFD\uFFFD\uFFFD\uFFFDC');
|
|
});
|
|
|
|
it('should reject code points beyond 0x10000', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
|
|
expect(decoder.decode(Uint8Array.of(0xF4, 0xA0, 0x80, 0x80)))
|
|
.toEqual('\uFFFD\uFFFD\uFFFD\uFFFD');
|
|
});
|
|
|
|
it('should cope with end-of-string', function() {
|
|
const decoder = new TextDecoderPolyfill();
|
|
|
|
expect(decoder.decode(Uint8Array.of(65, 0xC3)))
|
|
.toEqual('A\uFFFD');
|
|
|
|
expect(decoder.decode(Uint8Array.of(65, 0xE2, 0x82)))
|
|
.toEqual('A\uFFFD\uFFFD');
|
|
|
|
expect(decoder.decode(Uint8Array.of(65, 0xF0, 0x9F, 0x92)))
|
|
.toEqual('A\uFFFD\uFFFD\uFFFD');
|
|
});
|
|
|
|
});
|