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1 files changed, 87 insertions, 0 deletions

diff --git a/node_modules/worker-farm/tests/child.js b/node_modules/worker-farm/tests/child.js
new file mode 100644
index 00000000..71cb728f
--- /dev/null
+++ b/node_modules/worker-farm/tests/child.js
@@ -0,0 +1,87 @@
+'use strict'
+
+const fs = require('fs')
+const started = Date.now()
+
+
+module.exports = function (timeout, callback) {
+  callback = callback.bind(null, null, process.pid, Math.random(), timeout)
+  if (timeout)
+    return setTimeout(callback, timeout)
+  callback()
+}
+
+
+module.exports.args = function (callback) {
+  callback(null, {
+      argv     : process.argv
+    , cwd      : process.cwd()
+    , execArgv : process.execArgv
+  })
+}
+
+
+module.exports.run0 = function (callback) {
+  module.exports(0, callback)
+}
+
+
+module.exports.killable = function (id, callback) {
+  if (Math.random() < 0.5)
+    return process.exit(-1)
+  callback(null, id, process.pid)
+}
+
+
+module.exports.err = function (type, message, data, callback) {
+  if (typeof data == 'function') {
+    callback = data
+    data = null
+  } else {
+    let err = new Error(message)
+    Object.keys(data).forEach(function(key) {
+      err[key] = data[key]
+    })
+    callback(err)
+    return
+  }
+
+  if (type == 'TypeError')
+    return callback(new TypeError(message))
+  callback(new Error(message))
+}
+
+
+module.exports.block = function () {
+  while (true);
+}
+
+
+// use provided file path to save retries count among terminated workers
+module.exports.stubborn = function (path, callback) {
+  function isOutdated(path) {
+    return ((new Date).getTime() - fs.statSync(path).mtime.getTime()) > 2000
+  }
+
+  // file may not be properly deleted, check if modified no earler than two seconds ago
+  if (!fs.existsSync(path) || isOutdated(path)) {
+    fs.writeFileSync(path, '1')
+    process.exit(-1)
+  }
+
+  let retry = parseInt(fs.readFileSync(path, 'utf8'))
+  if (Number.isNaN(retry))
+    return callback(new Error('file contents is not a number'))
+
+  if (retry > 4) {
+    callback(null, 12)
+  } else {
+    fs.writeFileSync(path, String(retry + 1))
+    process.exit(-1)
+  }
+}
+
+
+module.exports.uptime = function (callback) {
+  callback(null, Date.now() - started)
+}