@nearform/doctor/test/analysis-delay.test.js

Programmable interface to Clinic.js Doctor

'use strict'

const test = require('tap').test
const analyseDelay = require('../analysis/analyse-delay.js')
const generateProcessStat = require('./generate-process-stat.js')

test('analyse delay - to high', function (t) {
  for (const noise of [0, 1, 10]) {
    const goodDelay = generateProcessStat({
      delay: [1, 2, 1, 1, 2, 2, 3, 1]
    }, noise)
    t.equal(analyseDelay({}, goodDelay, []), 'none')

    const badDelay = generateProcessStat({
      delay: [10, 8, 6, 10, 15, 10, 4]
    }, noise)
    t.equal(analyseDelay({}, badDelay, []), 'performance')
  }

  t.end()
})

test('analyse delay - spikes', function (t) {
  const goodDelay = generateProcessStat({
    delay: [1, 2, 1, 20, 2, 2, 3, 1]
  }, 1)
  t.equal(analyseDelay({}, goodDelay, []), 'none')

  const badDelay = generateProcessStat({
    delay: [1, 2, 1, 110, 2, 2, 3, 1]
  }, 1)
  t.equal(analyseDelay({}, badDelay, []), 'performance')

  t.end()
})