node/deps/npm/node_modules/npm-registry-client/test/retries.js

var tap = require('tap')

var server = require('./lib/server.js')
var common = require('./lib/common.js')
var client = common.freshClient({
  retry: {
    retries: 6,
    minTimeout: 10,
    maxTimeout: 100
  }
})

var pkg = {
  _id: 'some-package@1.2.3',
  name: 'some-package',
  version: '1.2.3'
}

tap.test('create new user account', function (t) {
  // first time, return a 408
  server.expect('GET', '/some-package/1.2.3', function (req, res) {
    res.statusCode = 408
    res.end('Timeout')
  })
  // then, slam the door in their face
  server.expect('GET', '/some-package/1.2.3', function (req, res) {
    res.destroy()
  })
  // then, blame someone else
  server.expect('GET', '/some-package/1.2.3', function (req, res) {
    res.statusCode = 502
    res.end('Gateway Timeout')
  })
  // 'No one's home right now, come back later'
  server.expect('GET', '/some-package/1.2.3', function (req, res) {
    res.statusCode = 503
    res.setHeader('retry-after', '10')
    res.end('Come back later')
  })
  // finally, you may enter.
  server.expect('GET', '/some-package/1.2.3', function (req, res) {
    res.statusCode = 200
    res.json(pkg)
  })

  client.get('http://localhost:1337/some-package/1.2.3', {}, function (er, data) {
    if (er) throw er
    t.deepEqual(data, pkg)
    server.close()
    t.end()
  })
})