chrome-devtools-frontend
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Chrome DevTools UI
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text/typescript
// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import * as Common from './common.js';
describe('Base64 decoder', () => {
function decode(str: string) {
const encoded = btoa(str);
const decoded = Common.Base64.decode(encoded);
const view = new DataView(decoded);
for (let idx = 0; idx < str.length; idx++) {
assert.strictEqual(view.getUint8(idx), str.charCodeAt(idx));
}
}
it('decodes correctly with double padding', () => {
decode('ABCDEFG'); // Double-equals padded: QUJDREVGRw==
});
it('decodes correctly with padding', () => {
decode('ABCDE'); // Single-equals padded: QUJDREU=
});
it('decodes correctly without padding', () => {
decode('ABCDEF'); // Unpadded: QUJDREVG
});
});
describe('Base64 encoder', () => {
it('encodes ArrayBuffers correctly', async () => {
const buffer1 = new Uint8Array([0]);
assert.strictEqual(await Common.Base64.encode(buffer1.buffer), 'AA==');
const buffer2 = new Uint8Array([0, 1]);
assert.strictEqual(await Common.Base64.encode(buffer2.buffer), 'AAE=');
const buffer3 = new Uint8Array([0, 1, 2]);
assert.strictEqual(await Common.Base64.encode(buffer3.buffer), 'AAEC');
});
});