limited-peer-list.spec.js

/* eslint-env mocha */
'use strict'

const chai = require('chai')
chai.use(require('dirty-chai'))
const expect = chai.expect

const LimitedPeerList = require('../src/limited-peer-list')

const createPeerInfo = require('./utils/create-peer-info')

describe('LimitedPeerList', () => {
  let peers

  before(function (done) {
    this.timeout(10 * 1000)

    createPeerInfo(5, (err, p) => {
      if (err) {
        return done(err)
      }
      peers = p
      done()
    })
  })

  it('basics', () => {
    const l = new LimitedPeerList(4)

    expect(l.push(peers[0])).to.eql(true)
    expect(l.push(peers[0])).to.eql(false)
    expect(l.push(peers[1])).to.eql(true)
    expect(l.push(peers[2])).to.eql(true)
    expect(l.push(peers[3])).to.eql(true)
    expect(l.push(peers[4])).to.eql(false)

    expect(l).to.have.length(4)
    expect(l.pop()).to.eql(peers[3])
    expect(l).to.have.length(3)
    expect(l.push(peers[4])).to.eql(true)
    expect(l.toArray()).to.eql([peers[0], peers[1], peers[2], peers[4]])
  })
})