80 lines
2.7 KiB
JavaScript
80 lines
2.7 KiB
JavaScript
const openpgp = typeof window !== 'undefined' && window.openpgp ? window.openpgp : require('../..');
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const chai = require('chai');
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const { expect } = chai;
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module.exports = () => describe('Random Buffer', function() {
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let randomBuffer;
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before(function() {
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randomBuffer = new openpgp.crypto.random.randomBuffer.constructor();
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expect(randomBuffer).to.exist;
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});
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it('Throw error if not initialized', async function () {
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expect(randomBuffer.set.bind(randomBuffer)).to.throw('RandomBuffer is not initialized');
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await expect(randomBuffer.get(new Uint8Array(1))).to.eventually.be.rejectedWith('RandomBuffer is not initialized');
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});
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it('Initialization', function () {
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randomBuffer.init(5);
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expect(randomBuffer.buffer).to.exist;
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expect(randomBuffer.buffer).to.have.length(5);
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expect(randomBuffer.size).to.equal(0);
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});
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function equal(buf, arr) {
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for (let i = 0; i < buf.length; i++) {
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if (buf[i] !== arr[i]) {
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return false;
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}
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}
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return true;
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}
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it('Set Method', function () {
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randomBuffer.init(5);
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let buf = new Uint32Array(2);
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expect(randomBuffer.set.bind(randomBuffer, buf)).to.throw('Invalid type: buf not an Uint8Array');
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buf = new Uint8Array(2);
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buf[0] = 1; buf[1] = 2;
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randomBuffer.set(buf);
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expect(equal(randomBuffer.buffer, [1,2,0,0,0])).to.be.true;
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expect(randomBuffer.size).to.equal(2);
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randomBuffer.set(buf);
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expect(equal(randomBuffer.buffer, [1,2,1,2,0])).to.be.true;
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expect(randomBuffer.size).to.equal(4);
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randomBuffer.set(buf);
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expect(equal(randomBuffer.buffer, [1,2,1,2,1])).to.be.true;
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expect(randomBuffer.size).to.equal(5);
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randomBuffer.init(1);
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buf = new Uint8Array(2);
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buf[0] = 1; buf[1] = 2;
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randomBuffer.set(buf);
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expect(buf).to.to.have.property('0', 1);
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expect(randomBuffer.size).to.equal(1);
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});
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it('Get Method', async function () {
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randomBuffer.init(5);
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let buf = new Uint8Array(5);
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buf[0] = 1; buf[1] = 2; buf[2] = 5; buf[3] = 7; buf[4] = 8;
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randomBuffer.set(buf);
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buf = new Uint32Array(2);
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await expect(randomBuffer.get(buf)).to.eventually.be.rejectedWith('Invalid type: buf not an Uint8Array');
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buf = new Uint8Array(2);
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randomBuffer.get(buf);
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expect(equal(randomBuffer.buffer, [1,2,5,0,0])).to.be.true;
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expect(randomBuffer.size).to.equal(3);
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expect(buf).to.to.have.property('0', 8);
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expect(buf).to.to.have.property('1', 7);
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randomBuffer.get(buf);
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expect(buf).to.to.have.property('0', 5);
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expect(buf).to.to.have.property('1', 2);
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expect(equal(randomBuffer.buffer, [1,0,0,0,0])).to.be.true;
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expect(randomBuffer.size).to.equal(1);
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await expect(randomBuffer.get(buf)).to.eventually.be.rejectedWith('Random number buffer depleted');
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});
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});
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