class TestUtils {
static async waitExits (pool, numberOfExitEventsToWait) {
let exitEvents = 0
- return new Promise(function (resolve, reject) {
+ return new Promise(resolve => {
pool.workers.forEach(w => {
w.on('exit', () => {
exitEvents++
static async sleep (ms) {
return new Promise(resolve => setTimeout(resolve, ms))
}
+
+ static async workerSleepFunction (
+ data,
+ ms,
+ rejection = false,
+ rejectionMessage = ''
+ ) {
+ return new Promise((resolve, reject) => {
+ setTimeout(
+ () =>
+ rejection === true
+ ? reject(new Error(rejectionMessage))
+ : resolve(data),
+ ms
+ )
+ })
+ }
+
+ static jsonIntegerSerialization (n) {
+ for (let i = 0; i < n; i++) {
+ const o = {
+ a: i
+ }
+ JSON.stringify(o)
+ }
+ }
+
+ /**
+ * Intentionally inefficient implementation.
+ *
+ * @param {number} n
+ * @returns {number}
+ */
+ static fibonacci (n) {
+ if (n <= 1) return 1
+ return TestUtils.fibonacci(n - 1) + TestUtils.fibonacci(n - 2)
+ }
+
+ /**
+ * Intentionally inefficient implementation.
+ *
+ * @param {number} n
+ * @returns {number}
+ */
+ static factorial (n) {
+ if (n === 0) {
+ return 1
+ } else {
+ return TestUtils.factorial(n - 1) * n
+ }
+ }
}
module.exports = TestUtils