Server: add script that try to simulate a real world situation

Each pod randomly upload or remove a video and send the information to
its friend

diff --git a/package.json b/package.json
index 669ce8511b50a3399dbbc39040059a2919ab55f5..115f2e94081b89ff88a7eecc9c2148dbe7a9e463 100644 (file)
--- a/package.json
+++ b/package.json
@@ -67,6 +67,7 @@
   },
   "devDependencies": {
     "chai": "^3.3.0",
+    "commander": "^2.9.0",
     "livereload": "^0.4.1",
     "mocha": "^2.3.3",
     "standard": "^7.0.1",

diff --git a/server/tests/real-world/real-world.js b/server/tests/real-world/real-world.js
new file mode 100644 (file)
index 0000000..bc6ea85
--- /dev/null
+++ b/server/tests/real-world/real-world.js
@@ -0,0 +1,215 @@
+'use strict'
+
+const async = require('async')
+const program = require('commander')
+const isEqual = require('lodash/isEqual')
+
+process.env.NODE_ENV = 'test'
+const constants = require('../../initializers/constants')
+
+const utils = require('../api/utils')
+
+program
+  .option('-c, --create [weight]', 'Weight for creating videos')
+  .option('-r, --remove [weight]', 'Weight for removing videos')
+  .option('-p, --pods [n]', 'Number of pods to run (3 or 6)', /^3|6$/, 3)
+  .option('-a, --action [interval]', 'Interval in ms for an action')
+  .option('-i, --integrity [interval]', 'Interval in ms for an integrity check')
+  .option('-f, --flush', 'Flush datas on exit')
+  .parse(process.argv)
+
+const createWeight = parseInt(program.create) || 5
+const removeWeight = parseInt(program.remove) || 4
+const flushAtExit = program.flush || false
+const actionInterval = parseInt(program.action) || 500
+let integrityInterval = parseInt(program.integrity) || 60000
+
+const numberOfPods = 6
+// Wait requests between pods
+const requestsMaxPerInterval = constants.INTERVAL / actionInterval
+const intervalsToMakeAllRequests = Math.ceil(requestsMaxPerInterval / constants.REQUESTS_LIMIT)
+const waitForBeforeIntegrityCheck = (intervalsToMakeAllRequests * constants.INTERVAL) + 1000
+
+integrityInterval += waitForBeforeIntegrityCheck
+
+console.log('Create weight: %d, remove weight: %d.', createWeight, removeWeight)
+if (flushAtExit) {
+  console.log('Program will flush data on exit.')
+} else {
+  console.log('Program will not flush data on exit.')
+}
+console.log('Interval in ms for each action: %d.', actionInterval)
+console.log('Interval in ms for each integrity check: %d.', integrityInterval)
+console.log('Will wait %d ms before an integrity check.', waitForBeforeIntegrityCheck)
+
+console.log('Run servers...')
+runServers(numberOfPods, function (err, servers) {
+  if (err) throw err
+
+  process.on('exit', function () {
+    exitServers(servers, flushAtExit)
+  })
+  process.on('SIGINT', goodbye)
+  process.on('SIGTERM', goodbye)
+
+  console.log('Servers runned')
+
+  let checking = false
+
+  setInterval(function () {
+    if (checking === true) return
+
+    const rand = getRandomInt(0, createWeight + removeWeight)
+
+    if (rand < createWeight) {
+      upload(servers, getRandomNumServer(servers))
+    } else {
+      remove(servers, getRandomNumServer(servers))
+    }
+  }, actionInterval)
+
+  setInterval(function () {
+    console.log('Checking integrity...')
+    checking = true
+
+    setTimeout(function () {
+      checkIntegrity(servers, function () {
+        checking = false
+      })
+    }, waitForBeforeIntegrityCheck)
+  }, integrityInterval)
+})
+
+// ----------------------------------------------------------------------------
+
+function getRandomInt (min, max) {
+  return Math.floor(Math.random() * (max - min)) + min
+}
+
+function getRandomNumServer (servers) {
+  return getRandomInt(0, servers.length)
+}
+
+function runServers (numberOfPods, callback) {
+  let servers = null
+
+  async.series([
+    // Run servers
+    function (next) {
+      utils.flushAndRunMultipleServers(numberOfPods, function (serversRun) {
+        servers = serversRun
+        next()
+      })
+    },
+    // Get the access tokens
+    function (next) {
+      async.each(servers, function (server, callbackEach) {
+        utils.loginAndGetAccessToken(server, function (err, accessToken) {
+          if (err) return callbackEach(err)
+
+          server.accessToken = accessToken
+          callbackEach()
+        })
+      }, next)
+    },
+    function (next) {
+      const server = servers[1]
+      utils.makeFriends(server.url, server.accessToken, next)
+    },
+    function (next) {
+      const server = servers[0]
+      utils.makeFriends(server.url, server.accessToken, next)
+    },
+    function (next) {
+      setTimeout(next, 1000)
+    },
+    function (next) {
+      const server = servers[3]
+      utils.makeFriends(server.url, server.accessToken, next)
+    },
+    function (next) {
+      const server = servers[5]
+      utils.makeFriends(server.url, server.accessToken, next)
+    },
+    function (next) {
+      const server = servers[4]
+      utils.makeFriends(server.url, server.accessToken, next)
+    },
+    function (next) {
+      setTimeout(next, 1000)
+    }
+  ], function (err) {
+    return callback(err, servers)
+  })
+}
+
+function exitServers (servers, callback) {
+  if (!callback) callback = function () {}
+
+  servers.forEach(function (server) {
+    if (server.app) process.kill(-server.app.pid)
+  })
+
+  if (flushAtExit) utils.flushTests(callback)
+}
+
+function upload (servers, numServer, callback) {
+  if (!callback) callback = function () {}
+
+  const name = 'my super name for pod 1'
+  const description = 'my super description for pod 1'
+  const tags = [ 'tag1p1', 'tag2p1' ]
+  const file = 'video_short1.webm'
+
+  console.log('Upload video to server ' + numServer)
+
+  utils.uploadVideo(servers[numServer].url, servers[numServer].accessToken, name, description, tags, file, callback)
+}
+
+function remove (servers, numServer, callback) {
+  if (!callback) callback = function () {}
+
+  utils.getVideosList(servers[numServer].url, function (err, res) {
+    if (err) throw err
+
+    const videos = res.body.data
+    if (videos.length === 0) return callback()
+
+    const toRemove = videos[getRandomInt(0, videos.length)].id
+
+    console.log('Removing video from server ' + numServer)
+    utils.removeVideo(servers[numServer].url, servers[numServer].accessToken, toRemove, callback)
+  })
+}
+
+function checkIntegrity (servers, callback) {
+  const videos = []
+  async.each(servers, function (server, callback) {
+    utils.getAllVideosListBy(server.url, function (err, res) {
+      if (err) throw err
+      const serverVideos = res.body.data
+      for (const serverVideo of serverVideos) {
+        delete serverVideo.id
+        delete serverVideo.isLocal
+        delete serverVideo.thumbnailPath
+      }
+
+      videos.push(serverVideos)
+      callback()
+    })
+  }, function () {
+    for (const video of videos) {
+      if (!isEqual(video, videos[0])) {
+        console.error('Integrity not ok!')
+        process.exit(-1)
+      }
+    }
+
+    console.log('Integrity ok.')
+    return callback()
+  })
+}
+
+function goodbye () {
+  return process.exit(-1)
+}