84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
// eslint-disable no-unused-expressions
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const { describe, it, beforeEach } = require('mocha');
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const { expect } = require('chai');
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const RateLimiterUnion = require('../lib/RateLimiterUnion');
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const RateLimiterMemory = require('../lib/RateLimiterMemory');
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describe('RateLimiterUnion with fixed window', () => {
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const keyPrefix1 = 'limit1';
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const keyPrefix2 = 'limit2';
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let rateLimiter;
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beforeEach(() => {
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const limiter1 = new RateLimiterMemory({
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keyPrefix: keyPrefix1,
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points: 1,
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duration: 1,
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});
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const limiter2 = new RateLimiterMemory({
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keyPrefix: keyPrefix2,
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points: 2,
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duration: 5,
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});
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rateLimiter = new RateLimiterUnion(limiter1, limiter2);
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});
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it('does not allow to create union with limiters number less than 2', () => {
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try {
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new RateLimiterUnion(new RateLimiterMemory({ // eslint-disable-line no-new
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keyPrefix: keyPrefix1,
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points: 1,
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duration: 1,
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}));
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} catch (err) {
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expect(err instanceof Error).to.equal(true);
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}
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});
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it('all limiters have to be instance of RateLimiterAbstract', () => {
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try {
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new RateLimiterUnion(new RateLimiterMemory({ // eslint-disable-line no-new
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keyPrefix: keyPrefix1,
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points: 1,
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duration: 1,
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}), {});
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} catch (err) {
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expect(err instanceof Error).to.equal(true);
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}
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});
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it('consume from all limiters', (done) => {
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rateLimiter.consume('test')
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.then((res) => {
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expect(res[keyPrefix1].remainingPoints === 0 && res[keyPrefix2].remainingPoints === 1).to.equal(true);
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done();
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})
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.catch(() => {
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done(Error('must not reject'));
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});
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});
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it('reject consume one "limit1", which does not have enough points', (done) => {
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rateLimiter.consume('test', 2)
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.then(() => {
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done(Error('must not resolve'));
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})
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.catch((rej) => {
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expect(rej[keyPrefix1].remainingPoints === 0).to.equal(true);
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done();
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});
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});
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it('reject both do not have enough points', (done) => {
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rateLimiter.consume('test', 3)
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.then(() => {
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done(Error('must not resolve'));
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})
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.catch((rej) => {
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expect(rej[keyPrefix1].remainingPoints === 0 && rej[keyPrefix2].remainingPoints === 0).to.equal(true);
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done();
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});
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});
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});
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