react-native-macos/Libraries/Utilities/__tests__/binaryToBase64-test.js

49 строки
1.3 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @emails oncall+react_native
*/
'use strict';
const base64 = require('base64-js');
const {TextEncoder, TextDecoder} = require('util');
describe('binaryToBase64', () => {
const binaryToBase64 = require('../binaryToBase64');
it('should encode a Uint8Array', () => {
const input = new TextEncoder().encode('Test string');
expect(base64ToString(binaryToBase64(input))).toEqual('Test string');
});
it('should encode an ArrayBuffer', () => {
const input = new TextEncoder().encode('Test string').buffer;
expect(base64ToString(binaryToBase64(input))).toEqual('Test string');
});
it('should encode a DataView', () => {
const input = new DataView(new TextEncoder().encode('Test string').buffer);
expect(base64ToString(binaryToBase64(input))).toEqual('Test string');
});
it('should not encode a non ArrayBuffer or non typed array', () => {
const input = ['i', 'n', 'v', 'a', 'l', 'i', 'd'];
expect(() => binaryToBase64(input)).toThrowError();
});
});
function base64ToString(base64String) {
const byteArray = base64.toByteArray(base64String);
return new TextDecoder().decode(byteArray);
}