Index: frontend/node_modules/fastq/test/example.ts
===================================================================
--- frontend/node_modules/fastq/test/example.ts	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/fastq/test/example.ts	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,83 @@
+import * as fastq from '../'
+import { promise as queueAsPromised } from '../'
+
+// Basic example
+
+const queue = fastq(worker, 1)
+
+queue.push('world', (err, result) => {
+  if (err) throw err
+  console.log('the result is', result)
+})
+
+queue.push('push without cb')
+
+queue.concurrency
+
+queue.drain()
+
+queue.empty = () => undefined
+
+console.log('the queue tasks are', queue.getQueue())
+
+queue.idle()
+
+queue.kill()
+
+queue.killAndDrain()
+
+queue.length
+
+queue.pause()
+
+queue.resume()
+
+queue.running()
+
+queue.saturated = () => undefined
+
+queue.unshift('world', (err, result) => {
+  if (err) throw err
+  console.log('the result is', result)
+})
+
+queue.unshift('unshift without cb')
+
+function worker(task: any, cb: fastq.done) {
+  cb(null, 'hello ' + task)
+}
+
+// Generics example
+
+interface GenericsContext {
+  base: number;
+}
+
+const genericsQueue = fastq<GenericsContext, number, string>({ base: 6 }, genericsWorker, 1)
+
+genericsQueue.push(7, (err, done) => {
+  if (err) throw err
+  console.log('the result is', done)
+})
+
+genericsQueue.unshift(7, (err, done) => {
+  if (err) throw err
+  console.log('the result is', done)
+})
+
+function genericsWorker(this: GenericsContext, task: number, cb: fastq.done<string>) {
+  cb(null, 'the meaning of life is ' + (this.base * task))
+}
+
+const queue2 = queueAsPromised(asyncWorker, 1)
+
+async function asyncWorker(task: any) {
+  return 'hello ' + task
+}
+
+async function run () {
+  await queue.push(42)
+  await queue.unshift(42)
+}
+
+run()
Index: frontend/node_modules/fastq/test/promise.js
===================================================================
--- frontend/node_modules/fastq/test/promise.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/fastq/test/promise.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,325 @@
+'use strict'
+
+const test = require('tape')
+const buildQueue = require('../').promise
+const { promisify } = require('util')
+const sleep = promisify(setTimeout)
+const immediate = promisify(setImmediate)
+
+test('concurrency', function (t) {
+  t.plan(2)
+  t.throws(buildQueue.bind(null, worker, 0))
+  t.doesNotThrow(buildQueue.bind(null, worker, 1))
+
+  async function worker (arg) {
+    return true
+  }
+})
+
+test('worker execution', async function (t) {
+  const queue = buildQueue(worker, 1)
+
+  const result = await queue.push(42)
+
+  t.equal(result, true, 'result matches')
+
+  async function worker (arg) {
+    t.equal(arg, 42)
+    return true
+  }
+})
+
+test('limit', async function (t) {
+  const queue = buildQueue(worker, 1)
+
+  const [res1, res2] = await Promise.all([queue.push(10), queue.push(0)])
+  t.equal(res1, 10, 'the result matches')
+  t.equal(res2, 0, 'the result matches')
+
+  async function worker (arg) {
+    await sleep(arg)
+    return arg
+  }
+})
+
+test('multiple executions', async function (t) {
+  const queue = buildQueue(worker, 1)
+  const toExec = [1, 2, 3, 4, 5]
+  const expected = ['a', 'b', 'c', 'd', 'e']
+  let count = 0
+
+  await Promise.all(toExec.map(async function (task, i) {
+    const result = await queue.push(task)
+    t.equal(result, expected[i], 'the result matches')
+  }))
+
+  async function worker (arg) {
+    t.equal(arg, toExec[count], 'arg matches')
+    return expected[count++]
+  }
+})
+
+test('drained', async function (t) {
+  const queue = buildQueue(worker, 2)
+
+  const toExec = new Array(10).fill(10)
+  let count = 0
+
+  async function worker (arg) {
+    await sleep(arg)
+    count++
+  }
+
+  toExec.forEach(function (i) {
+    queue.push(i)
+  })
+
+  await queue.drained()
+
+  t.equal(count, toExec.length)
+
+  toExec.forEach(function (i) {
+    queue.push(i)
+  })
+
+  await queue.drained()
+
+  t.equal(count, toExec.length * 2)
+})
+
+test('drained with exception should not throw', async function (t) {
+  const queue = buildQueue(worker, 2)
+
+  const toExec = new Array(10).fill(10)
+
+  async function worker () {
+    throw new Error('foo')
+  }
+
+  toExec.forEach(function (i) {
+    queue.push(i)
+  })
+
+  await queue.drained()
+})
+
+test('drained with drain function', async function (t) {
+  let drainCalled = false
+  const queue = buildQueue(worker, 2)
+
+  queue.drain = function () {
+    drainCalled = true
+  }
+
+  const toExec = new Array(10).fill(10)
+  let count = 0
+
+  async function worker (arg) {
+    await sleep(arg)
+    count++
+  }
+
+  toExec.forEach(function () {
+    queue.push()
+  })
+
+  await queue.drained()
+
+  t.equal(count, toExec.length)
+  t.equal(drainCalled, true)
+})
+
+test('drained while idle should resolve', async function (t) {
+  const queue = buildQueue(worker, 2)
+
+  async function worker (arg) {
+    await sleep(arg)
+  }
+
+  await queue.drained()
+})
+
+test('drained while idle should not call the drain function', async function (t) {
+  let drainCalled = false
+  const queue = buildQueue(worker, 2)
+
+  queue.drain = function () {
+    drainCalled = true
+  }
+
+  async function worker (arg) {
+    await sleep(arg)
+  }
+
+  await queue.drained()
+
+  t.equal(drainCalled, false)
+})
+
+test('set this', async function (t) {
+  t.plan(1)
+  const that = {}
+  const queue = buildQueue(that, worker, 1)
+
+  await queue.push(42)
+
+  async function worker (arg) {
+    t.equal(this, that, 'this matches')
+  }
+})
+
+test('unshift', async function (t) {
+  const queue = buildQueue(worker, 1)
+  const expected = [1, 2, 3, 4]
+
+  await Promise.all([
+    queue.push(1),
+    queue.push(4),
+    queue.unshift(3),
+    queue.unshift(2)
+  ])
+
+  t.is(expected.length, 0)
+
+  async function worker (arg) {
+    t.equal(expected.shift(), arg, 'tasks come in order')
+  }
+})
+
+test('push with worker throwing error', async function (t) {
+  t.plan(5)
+  const q = buildQueue(async function (task, cb) {
+    throw new Error('test error')
+  }, 1)
+  q.error(function (err, task) {
+    t.ok(err instanceof Error, 'global error handler should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+    t.equal(task, 42, 'The task executed should be passed')
+  })
+  try {
+    await q.push(42)
+  } catch (err) {
+    t.ok(err instanceof Error, 'push callback should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+  }
+})
+
+test('unshift with worker throwing error', async function (t) {
+  t.plan(2)
+  const q = buildQueue(async function (task, cb) {
+    throw new Error('test error')
+  }, 1)
+  try {
+    await q.unshift(42)
+  } catch (err) {
+    t.ok(err instanceof Error, 'push callback should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+  }
+})
+
+test('no unhandledRejection (push)', async function (t) {
+  function handleRejection () {
+    t.fail('unhandledRejection')
+  }
+  process.once('unhandledRejection', handleRejection)
+  const q = buildQueue(async function (task, cb) {
+    throw new Error('test error')
+  }, 1)
+
+  q.push(42)
+
+  await immediate()
+  process.removeListener('unhandledRejection', handleRejection)
+})
+
+test('no unhandledRejection (unshift)', async function (t) {
+  function handleRejection () {
+    t.fail('unhandledRejection')
+  }
+  process.once('unhandledRejection', handleRejection)
+  const q = buildQueue(async function (task, cb) {
+    throw new Error('test error')
+  }, 1)
+
+  q.unshift(42)
+
+  await immediate()
+  process.removeListener('unhandledRejection', handleRejection)
+})
+
+test('drained should resolve after async tasks complete', async function (t) {
+  const logs = []
+
+  async function processTask () {
+    await new Promise(resolve => setTimeout(resolve, 0))
+    logs.push('processed')
+  }
+
+  const queue = buildQueue(processTask, 1)
+  queue.drain = () => logs.push('called drain')
+
+  queue.drained().then(() => logs.push('drained promise resolved'))
+
+  await Promise.all([
+    queue.push(),
+    queue.push(),
+    queue.push()
+  ])
+
+  t.deepEqual(logs, [
+    'processed',
+    'processed',
+    'processed',
+    'called drain',
+    'drained promise resolved'
+  ], 'events happened in correct order')
+})
+
+test('drained should handle undefined drain function', async function (t) {
+  const queue = buildQueue(worker, 1)
+
+  async function worker (arg) {
+    await sleep(10)
+    return arg
+  }
+
+  queue.drain = undefined
+  queue.push(1)
+  await queue.drained()
+
+  t.pass('drained resolved successfully with undefined drain')
+})
+
+test('abort rejects all pending promises', async function (t) {
+  const queue = buildQueue(worker, 1)
+  const promises = []
+  let rejectedCount = 0
+
+  // Pause queue to prevent tasks from starting
+  queue.pause()
+
+  for (let i = 0; i < 10; i++) {
+    promises.push(queue.push(i))
+  }
+
+  queue.abort()
+
+  // All promises should be rejected
+  for (const promise of promises) {
+    try {
+      await promise
+      t.fail('promise should have been rejected')
+    } catch (err) {
+      t.equal(err.message, 'abort', 'error message is abort')
+      rejectedCount++
+    }
+  }
+
+  t.equal(rejectedCount, 10, 'all promises were rejected')
+  t.equal(queue.length(), 0, 'queue is empty')
+
+  async function worker (arg) {
+    await sleep(500)
+    return arg
+  }
+})
Index: frontend/node_modules/fastq/test/test.js
===================================================================
--- frontend/node_modules/fastq/test/test.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/fastq/test/test.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,733 @@
+'use strict'
+
+/* eslint-disable no-var */
+
+var test = require('tape')
+var buildQueue = require('../')
+
+test('concurrency', function (t) {
+  t.plan(6)
+  t.throws(buildQueue.bind(null, worker, 0))
+  t.throws(buildQueue.bind(null, worker, NaN))
+  t.doesNotThrow(buildQueue.bind(null, worker, 1))
+
+  var queue = buildQueue(worker, 1)
+  t.throws(function () {
+    queue.concurrency = 0
+  })
+  t.throws(function () {
+    queue.concurrency = NaN
+  })
+  t.doesNotThrow(function () {
+    queue.concurrency = 2
+  })
+
+  function worker (arg, cb) {
+    cb(null, true)
+  }
+})
+
+test('worker execution', function (t) {
+  t.plan(3)
+
+  var queue = buildQueue(worker, 1)
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  })
+
+  function worker (arg, cb) {
+    t.equal(arg, 42)
+    cb(null, true)
+  }
+})
+
+test('limit', function (t) {
+  t.plan(4)
+
+  var expected = [10, 0]
+  var queue = buildQueue(worker, 1)
+
+  queue.push(10, result)
+  queue.push(0, result)
+
+  function result (err, arg) {
+    t.error(err, 'no error')
+    t.equal(arg, expected.shift(), 'the result matches')
+  }
+
+  function worker (arg, cb) {
+    setTimeout(cb, arg, null, arg)
+  }
+})
+
+test('multiple executions', function (t) {
+  t.plan(15)
+
+  var queue = buildQueue(worker, 1)
+  var toExec = [1, 2, 3, 4, 5]
+  var count = 0
+
+  toExec.forEach(function (task) {
+    queue.push(task, done)
+  })
+
+  function done (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, toExec[count - 1], 'the result matches')
+  }
+
+  function worker (arg, cb) {
+    t.equal(arg, toExec[count], 'arg matches')
+    count++
+    setImmediate(cb, null, arg)
+  }
+})
+
+test('multiple executions, one after another', function (t) {
+  t.plan(15)
+
+  var queue = buildQueue(worker, 1)
+  var toExec = [1, 2, 3, 4, 5]
+  var count = 0
+
+  queue.push(toExec[0], done)
+
+  function done (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, toExec[count - 1], 'the result matches')
+    if (count < toExec.length) {
+      queue.push(toExec[count], done)
+    }
+  }
+
+  function worker (arg, cb) {
+    t.equal(arg, toExec[count], 'arg matches')
+    count++
+    setImmediate(cb, null, arg)
+  }
+})
+
+test('set this', function (t) {
+  t.plan(3)
+
+  var that = {}
+  var queue = buildQueue(that, worker, 1)
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(this, that, 'this matches')
+  })
+
+  function worker (arg, cb) {
+    t.equal(this, that, 'this matches')
+    cb(null, true)
+  }
+})
+
+test('drain', function (t) {
+  t.plan(4)
+
+  var queue = buildQueue(worker, 1)
+  var worked = false
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  })
+
+  queue.drain = function () {
+    t.equal(true, worked, 'drained')
+  }
+
+  function worker (arg, cb) {
+    t.equal(arg, 42)
+    worked = true
+    setImmediate(cb, null, true)
+  }
+})
+
+test('pause && resume', function (t) {
+  t.plan(13)
+
+  var queue = buildQueue(worker, 1)
+  var worked = false
+  var expected = [42, 24]
+
+  t.notOk(queue.paused, 'it should not be paused')
+
+  queue.pause()
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  })
+
+  queue.push(24, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  })
+
+  t.notOk(worked, 'it should be paused')
+  t.ok(queue.paused, 'it should be paused')
+
+  queue.resume()
+  queue.pause()
+  queue.resume()
+  queue.resume() // second resume is a no-op
+
+  function worker (arg, cb) {
+    t.notOk(queue.paused, 'it should not be paused')
+    t.ok(queue.running() <= queue.concurrency, 'should respect the concurrency')
+    t.equal(arg, expected.shift())
+    worked = true
+    process.nextTick(function () { cb(null, true) })
+  }
+})
+
+test('pause in flight && resume', function (t) {
+  t.plan(16)
+
+  var queue = buildQueue(worker, 1)
+  var expected = [42, 24, 12]
+
+  t.notOk(queue.paused, 'it should not be paused')
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+    t.ok(queue.paused, 'it should be paused')
+    process.nextTick(function () {
+      queue.resume()
+      queue.pause()
+      queue.resume()
+    })
+  })
+
+  queue.push(24, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+    t.notOk(queue.paused, 'it should not be paused')
+  })
+
+  queue.push(12, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+    t.notOk(queue.paused, 'it should not be paused')
+  })
+
+  queue.pause()
+
+  function worker (arg, cb) {
+    t.ok(queue.running() <= queue.concurrency, 'should respect the concurrency')
+    t.equal(arg, expected.shift())
+    process.nextTick(function () { cb(null, true) })
+  }
+})
+
+test('altering concurrency', function (t) {
+  t.plan(24)
+
+  var queue = buildQueue(worker, 1)
+
+  queue.push(24, workDone)
+  queue.push(24, workDone)
+  queue.push(24, workDone)
+
+  queue.pause()
+
+  queue.concurrency = 3 // concurrency changes are ignored while paused
+  queue.concurrency = 2
+
+  queue.resume()
+
+  t.equal(queue.running(), 2, '2 jobs running')
+
+  queue.concurrency = 3
+
+  t.equal(queue.running(), 3, '3 jobs running')
+
+  queue.concurrency = 1
+
+  t.equal(queue.running(), 3, '3 jobs running') // running jobs can't be killed
+
+  queue.push(24, workDone)
+  queue.push(24, workDone)
+  queue.push(24, workDone)
+  queue.push(24, workDone)
+
+  function workDone (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  }
+
+  function worker (arg, cb) {
+    t.ok(queue.running() <= queue.concurrency, 'should respect the concurrency')
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('idle()', function (t) {
+  t.plan(12)
+
+  var queue = buildQueue(worker, 1)
+
+  t.ok(queue.idle(), 'queue is idle')
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+    t.notOk(queue.idle(), 'queue is not idle')
+  })
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+    // it will go idle after executing this function
+    setImmediate(function () {
+      t.ok(queue.idle(), 'queue is now idle')
+    })
+  })
+
+  t.notOk(queue.idle(), 'queue is not idle')
+
+  function worker (arg, cb) {
+    t.notOk(queue.idle(), 'queue is not idle')
+    t.equal(arg, 42)
+    setImmediate(cb, null, true)
+  }
+})
+
+test('saturated', function (t) {
+  t.plan(9)
+
+  var queue = buildQueue(worker, 1)
+  var preworked = 0
+  var worked = 0
+
+  queue.saturated = function () {
+    t.pass('saturated')
+    t.equal(preworked, 1, 'started 1 task')
+    t.equal(worked, 0, 'worked zero task')
+  }
+
+  queue.push(42, done)
+  queue.push(42, done)
+
+  function done (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  }
+
+  function worker (arg, cb) {
+    t.equal(arg, 42)
+    preworked++
+    setImmediate(function () {
+      worked++
+      cb(null, true)
+    })
+  }
+})
+
+test('length', function (t) {
+  t.plan(7)
+
+  var queue = buildQueue(worker, 1)
+
+  t.equal(queue.length(), 0, 'nothing waiting')
+  queue.push(42, done)
+  t.equal(queue.length(), 0, 'nothing waiting')
+  queue.push(42, done)
+  t.equal(queue.length(), 1, 'one task waiting')
+  queue.push(42, done)
+  t.equal(queue.length(), 2, 'two tasks waiting')
+
+  function done (err, result) {
+    t.error(err, 'no error')
+  }
+
+  function worker (arg, cb) {
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('getQueue', function (t) {
+  t.plan(10)
+
+  var queue = buildQueue(worker, 1)
+
+  t.equal(queue.getQueue().length, 0, 'nothing waiting')
+  queue.push(42, done)
+  t.equal(queue.getQueue().length, 0, 'nothing waiting')
+  queue.push(42, done)
+  t.equal(queue.getQueue().length, 1, 'one task waiting')
+  t.equal(queue.getQueue()[0], 42, 'should be equal')
+  queue.push(43, done)
+  t.equal(queue.getQueue().length, 2, 'two tasks waiting')
+  t.equal(queue.getQueue()[0], 42, 'should be equal')
+  t.equal(queue.getQueue()[1], 43, 'should be equal')
+
+  function done (err, result) {
+    t.error(err, 'no error')
+  }
+
+  function worker (arg, cb) {
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('unshift', function (t) {
+  t.plan(8)
+
+  var queue = buildQueue(worker, 1)
+  var expected = [1, 2, 3, 4]
+
+  queue.push(1, done)
+  queue.push(4, done)
+  queue.unshift(3, done)
+  queue.unshift(2, done)
+
+  function done (err, result) {
+    t.error(err, 'no error')
+  }
+
+  function worker (arg, cb) {
+    t.equal(expected.shift(), arg, 'tasks come in order')
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('unshift && empty', function (t) {
+  t.plan(2)
+
+  var queue = buildQueue(worker, 1)
+  var completed = false
+
+  queue.pause()
+
+  queue.empty = function () {
+    t.notOk(completed, 'the task has not completed yet')
+  }
+
+  queue.unshift(1, done)
+
+  queue.resume()
+
+  function done (err, result) {
+    completed = true
+    t.error(err, 'no error')
+  }
+
+  function worker (arg, cb) {
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('push && empty', function (t) {
+  t.plan(2)
+
+  var queue = buildQueue(worker, 1)
+  var completed = false
+
+  queue.pause()
+
+  queue.empty = function () {
+    t.notOk(completed, 'the task has not completed yet')
+  }
+
+  queue.push(1, done)
+
+  queue.resume()
+
+  function done (err, result) {
+    completed = true
+    t.error(err, 'no error')
+  }
+
+  function worker (arg, cb) {
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('kill', function (t) {
+  t.plan(5)
+
+  var queue = buildQueue(worker, 1)
+  var expected = [1]
+
+  var predrain = queue.drain
+
+  queue.drain = function drain () {
+    t.fail('drain should never be called')
+  }
+
+  queue.push(1, done)
+  queue.push(4, done)
+  queue.unshift(3, done)
+  queue.unshift(2, done)
+  queue.kill()
+
+  function done (err, result) {
+    t.error(err, 'no error')
+    setImmediate(function () {
+      t.equal(queue.length(), 0, 'no queued tasks')
+      t.equal(queue.running(), 0, 'no running tasks')
+      t.equal(queue.drain, predrain, 'drain is back to default')
+    })
+  }
+
+  function worker (arg, cb) {
+    t.equal(expected.shift(), arg, 'tasks come in order')
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('killAndDrain', function (t) {
+  t.plan(6)
+
+  var queue = buildQueue(worker, 1)
+  var expected = [1]
+
+  var predrain = queue.drain
+
+  queue.drain = function drain () {
+    t.pass('drain has been called')
+  }
+
+  queue.push(1, done)
+  queue.push(4, done)
+  queue.unshift(3, done)
+  queue.unshift(2, done)
+  queue.killAndDrain()
+
+  function done (err, result) {
+    t.error(err, 'no error')
+    setImmediate(function () {
+      t.equal(queue.length(), 0, 'no queued tasks')
+      t.equal(queue.running(), 0, 'no running tasks')
+      t.equal(queue.drain, predrain, 'drain is back to default')
+    })
+  }
+
+  function worker (arg, cb) {
+    t.equal(expected.shift(), arg, 'tasks come in order')
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('pause && idle', function (t) {
+  t.plan(11)
+
+  var queue = buildQueue(worker, 1)
+  var worked = false
+
+  t.notOk(queue.paused, 'it should not be paused')
+  t.ok(queue.idle(), 'should be idle')
+
+  queue.pause()
+
+  queue.push(42, function (err, result) {
+    t.error(err, 'no error')
+    t.equal(result, true, 'result matches')
+  })
+
+  t.notOk(worked, 'it should be paused')
+  t.ok(queue.paused, 'it should be paused')
+  t.notOk(queue.idle(), 'should not be idle')
+
+  queue.resume()
+
+  t.notOk(queue.paused, 'it should not be paused')
+  t.notOk(queue.idle(), 'it should not be idle')
+
+  function worker (arg, cb) {
+    t.equal(arg, 42)
+    worked = true
+    process.nextTick(cb.bind(null, null, true))
+    process.nextTick(function () {
+      t.ok(queue.idle(), 'is should be idle')
+    })
+  }
+})
+
+test('push without cb', function (t) {
+  t.plan(1)
+
+  var queue = buildQueue(worker, 1)
+
+  queue.push(42)
+
+  function worker (arg, cb) {
+    t.equal(arg, 42)
+    cb()
+  }
+})
+
+test('unshift without cb', function (t) {
+  t.plan(1)
+
+  var queue = buildQueue(worker, 1)
+
+  queue.unshift(42)
+
+  function worker (arg, cb) {
+    t.equal(arg, 42)
+    cb()
+  }
+})
+
+test('push with worker throwing error', function (t) {
+  t.plan(5)
+  var q = buildQueue(function (task, cb) {
+    cb(new Error('test error'), null)
+  }, 1)
+  q.error(function (err, task) {
+    t.ok(err instanceof Error, 'global error handler should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+    t.equal(task, 42, 'The task executed should be passed')
+  })
+  q.push(42, function (err) {
+    t.ok(err instanceof Error, 'push callback should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+  })
+})
+
+test('unshift with worker throwing error', function (t) {
+  t.plan(5)
+  var q = buildQueue(function (task, cb) {
+    cb(new Error('test error'), null)
+  }, 1)
+  q.error(function (err, task) {
+    t.ok(err instanceof Error, 'global error handler should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+    t.equal(task, 42, 'The task executed should be passed')
+  })
+  q.unshift(42, function (err) {
+    t.ok(err instanceof Error, 'unshift callback should catch the error')
+    t.match(err.message, /test error/, 'error message should be "test error"')
+  })
+})
+
+test('pause/resume should trigger drain event', function (t) {
+  t.plan(1)
+
+  var queue = buildQueue(worker, 1)
+  queue.pause()
+  queue.drain = function () {
+    t.pass('drain should be called')
+  }
+
+  function worker (arg, cb) {
+    cb(null, true)
+  }
+
+  queue.resume()
+})
+
+test('paused flag', function (t) {
+  t.plan(2)
+
+  var queue = buildQueue(function (arg, cb) {
+    cb(null)
+  }, 1)
+  t.equal(queue.paused, false)
+  queue.pause()
+  t.equal(queue.paused, true)
+})
+
+test('abort', function (t) {
+  t.plan(11)
+
+  var queue = buildQueue(worker, 1)
+  var abortedTasks = 0
+
+  var predrain = queue.drain
+
+  queue.drain = function drain () {
+    t.fail('drain should never be called')
+  }
+
+  // Pause queue to prevent tasks from starting
+  queue.pause()
+  queue.push(1, doneAborted)
+  queue.push(4, doneAborted)
+  queue.unshift(3, doneAborted)
+  queue.unshift(2, doneAborted)
+
+  // Abort all queued tasks
+  queue.abort()
+
+  // Verify state after abort
+  t.equal(queue.length(), 0, 'no queued tasks after abort')
+  t.equal(queue.drain, predrain, 'drain is back to default')
+
+  setImmediate(function () {
+    t.equal(abortedTasks, 4, 'all queued tasks were aborted')
+  })
+
+  function doneAborted (err) {
+    t.ok(err, 'error is present')
+    t.equal(err.message, 'abort', 'error message is abort')
+    abortedTasks++
+  }
+
+  function worker (arg, cb) {
+    t.fail('worker should not be called')
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
+
+test('abort with error handler', function (t) {
+  t.plan(7)
+
+  var queue = buildQueue(worker, 1)
+  var errorHandlerCalled = 0
+
+  queue.error(function (err, task) {
+    t.equal(err.message, 'abort', 'error handler receives abort error')
+    t.ok(task !== null, 'error handler receives task value')
+    errorHandlerCalled++
+  })
+
+  // Pause queue to prevent tasks from starting
+  queue.pause()
+  queue.push(1, doneAborted)
+  queue.push(2, doneAborted)
+
+  // Abort all queued tasks
+  queue.abort()
+
+  setImmediate(function () {
+    t.equal(errorHandlerCalled, 2, 'error handler called for all aborted tasks')
+  })
+
+  function doneAborted (err) {
+    t.ok(err, 'callback receives error')
+  }
+
+  function worker (arg, cb) {
+    t.fail('worker should not be called')
+    setImmediate(function () {
+      cb(null, true)
+    })
+  }
+})
Index: frontend/node_modules/fastq/test/tsconfig.json
===================================================================
--- frontend/node_modules/fastq/test/tsconfig.json	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/fastq/test/tsconfig.json	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "target": "es6",
+    "module": "commonjs",
+    "noEmit": true,
+    "strict": true
+  },
+  "files": [
+    "./example.ts"
+  ]
+}