docs: update benchmarks vs. external pools

[poolifier.git] / tests / test-utils.js

diff --git a/tests/test-utils.js b/tests/test-utils.js
index 690f4b37487cf10d369b5cc1589727b358a5f0f7..ceaff7be4c605140c546d1773493b56dcfb1e309 100644 (file)
--- a/tests/test-utils.js
+++ b/tests/test-utils.js
@@ -1,14 +1,34 @@
+const { WorkerFunctions } = require('./test-types')
+
 class TestUtils {
-  static async waitExits (pool, numberOfExitEventsToWait) {
-    let exitEvents = 0
-    return new Promise(function (resolve, reject) {
-      pool.workers.forEach(w => {
-        w.on('exit', () => {
-          exitEvents++
-          if (exitEvents === numberOfExitEventsToWait) {
-            resolve(exitEvents)
+  static async waitWorkerEvents (pool, workerEvent, numberOfEventsToWait) {
+    return new Promise(resolve => {
+      let events = 0
+      if (numberOfEventsToWait === 0) {
+        resolve(events)
+      }
+      for (const workerNode of pool.workerNodes) {
+        workerNode.worker.on(workerEvent, () => {
+          ++events
+          if (events === numberOfEventsToWait) {
+            resolve(events)
           }
         })
+      }
+    })
+  }
+
+  static async waitPoolEvents (pool, poolEvent, numberOfEventsToWait) {
+    return new Promise(resolve => {
+      let events = 0
+      if (numberOfEventsToWait === 0) {
+        resolve(events)
+      }
+      pool.emitter.on(poolEvent, () => {
+        ++events
+        if (events === numberOfEventsToWait) {
+          resolve(events)
+        }
       })
     })
   }
@@ -16,6 +36,79 @@ class TestUtils {
   static async sleep (ms) {
     return new Promise(resolve => setTimeout(resolve, ms))
   }
+
+  static async sleepWorkerFunction (
+    data,
+    ms,
+    rejection = false,
+    rejectionMessage = ''
+  ) {
+    return new Promise((resolve, reject) => {
+      setTimeout(
+        () =>
+          rejection === true
+            ? reject(new Error(rejectionMessage))
+            : resolve(data),
+        ms
+      )
+    })
+  }
+
+  static generateRandomInteger (max = Number.MAX_SAFE_INTEGER, min = 0) {
+    if (max < min || max < 0 || min < 0) {
+      throw new RangeError('Invalid interval')
+    }
+    max = Math.floor(max)
+    if (min != null && min !== 0) {
+      min = Math.ceil(min)
+      return Math.floor(Math.random() * (max - min + 1)) + min
+    }
+    return Math.floor(Math.random() * (max + 1))
+  }
+
+  static jsonIntegerSerialization (n) {
+    for (let i = 0; i < n; i++) {
+      const o = {
+        a: i
+      }
+      JSON.stringify(o)
+    }
+  }
+
+  /**
+   * Intentionally inefficient implementation.
+   * @param {number} n - The number of fibonacci numbers to generate.
+   * @returns {number} - The nth fibonacci number.
+   */
+  static fibonacci (n) {
+    if (n <= 1) return n
+    return TestUtils.fibonacci(n - 1) + TestUtils.fibonacci(n - 2)
+  }
+
+  /**
+   * Intentionally inefficient implementation.
+   * @param {number} n - The number to calculate the factorial of.
+   * @returns {number} - The factorial of n.
+   */
+  static factorial (n) {
+    if (n === 0) {
+      return 1
+    }
+    return TestUtils.factorial(n - 1) * n
+  }
+
+  static executeWorkerFunction (data) {
+    switch (data.function) {
+      case WorkerFunctions.jsonIntegerSerialization:
+        return TestUtils.jsonIntegerSerialization(data.n || 100)
+      case WorkerFunctions.fibonacci:
+        return TestUtils.fibonacci(data.n || 25)
+      case WorkerFunctions.factorial:
+        return TestUtils.factorial(data.n || 100)
+      default:
+        throw new Error('Unknown worker function')
+    }
+  }
 }
 
 module.exports = TestUtils