require('bare-process/global')
const test = require('brittle')
const { HyperP2PHistogramGossip, PROTOCOL } = require('../index.js')

test('exports', (t) => {
  t.ok(HyperP2PHistogramGossip)
  t.is(PROTOCOL, 'histogram-gossip/v1')
})

test('observe percentile', async (t) => {
  const m = new HyperP2PHistogramGossip()
  m.observe('latency', 10)
  m.observe('latency', 20)
  m.observe('latency', 30)
  t.ok(typeof m.percentile('latency', 50) === 'number')
  await m.close()
})

test('validation', async (t) => {
  const m = new HyperP2PHistogramGossip()
  try { m.observe('', 1) } catch (e) { t.ok(e) }
  await m.close()
})

test('remote gossip', async (t) => {
  const m = new HyperP2PHistogramGossip()
  m._onGossip({ type: 'histogram-buckets', metric: 'cpu', min: 0, max: 10, counts: [1, 2, 0, 0, 0, 0, 0, 0, 0, 0] })
  t.ok(m.snapshot('cpu').total >= 3)
  await m.close()
})

test('getStats', async (t) => {
  const m = new HyperP2PHistogramGossip()
  m.observe('x', 1)
  t.is(m.getStats().protocol, 'histogram-gossip/v1')
  t.is(m.getStats().observed, 1)
  await m.close()
})