@leverj/microtime.js/specs/index.spec.js

Utility to convert microtime into second, minute, etc

const expect = require('expect.js')
const microTime = require('../index.js')

describe("micro time", function () {
  describe("compare micro time accuracy", function () {
    it("should be congruent with Date.now() within 10ms", function () {
      for (let i = 0; i < 10; i++) {
        const dateNowMs = Date.now()
        const microNowMs = Math.round(microTime.micro() / 1e3)
        const diffWithin10Ms = Math.floor((microNowMs - dateNowMs) / 10)

        expect(diffWithin10Ms).to.eql(0)
      }
    })

    it.skip("should give increasing values every time", function () {
      this.timeout(0)
      let prev = microTime.micro()
      for (let i = 0; i < 10; i++) {
        const currentReading = microTime.micro()
        // if (i % 1 === 0) expect( currentReading).to.be.greaterThan(prev)
        if(currentReading === prev) expect().fail(i + ': time did not change')
        prev = currentReading
      }
    })
  })
  describe("time conversion", function () {
    const tests = [
      {d: "microToMilli", m: microTime.microToMilli, in: 1e3, out: 1},
      {d: "microToSec", m: microTime.microToSec, in: 1e6, out: 1},
      {d: "microToMin", m: microTime.microToMin, in: 60 * 1e6, out: 1},
      {d: "milliToMicro", m: microTime.milliToMicro, in: 1, out: 1e3},
      {d: "milliToSec", m: microTime.milliToSec, in: 1000, out: 1},
      {d: "secToMicro", m: microTime.secToMicro, in: 1, out: 1e6},
      {d: "minToSec", m: microTime.minToSec, in: 1, out: 60}
    ]

    tests.forEach(test => {
      it(test.d, function () {
        expect(test.m(test.in)).to.be.equal(test.out)
      })
    })
  })
})