import test from 'brittle'
import { isProcessCollectorEnabled, listProcStats } from '../server/services/collectors/processes.js'

test('isProcessCollectorEnabled', (t) => {
  const prev = process.env.PEARDATA_PROCESSES
  delete process.env.PEARDATA_PROCESSES
  // Default on for Linux hosts
  if (process.platform === 'linux') t.ok(isProcessCollectorEnabled())
  else t.absent(isProcessCollectorEnabled())
  process.env.PEARDATA_PROCESSES = '0'
  t.absent(isProcessCollectorEnabled())
  process.env.PEARDATA_PROCESSES = '1'
  t.ok(isProcessCollectorEnabled())
  if (prev == null) delete process.env.PEARDATA_PROCESSES
  else process.env.PEARDATA_PROCESSES = prev
})

test('listProcStats on linux returns pids', (t) => {
  const rows = listProcStats()
  if (process.platform !== 'linux') {
    t.is(rows, null)
    return
  }
  t.ok(Array.isArray(rows))
  t.ok(rows.length > 0)
  t.ok(rows[0].pid > 0)
  t.ok(rows[0].name)
  t.ok(Number.isFinite(rows[0].utime))
})