133 lines
3.9 KiB
C#
133 lines
3.9 KiB
C#
//
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// CollectionStressTestHelper.cs
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//
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// Author:
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// Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
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//
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// Copyright (c) 2009 Jérémie "Garuma" Laval
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.Concurrent;
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using System.Threading;
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using System.Linq;
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using System.Threading.Tasks;
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using NUnit;
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using NUnit.Framework;
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using NUnit.Framework.Constraints;
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namespace MonoTests.System.Collections.Concurrent
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{
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public enum CheckOrderingType {
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InOrder,
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Reversed,
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DontCare
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}
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public static class CollectionStressTestHelper
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{
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public static void AddStressTest (IProducerConsumerCollection<int> coll)
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{
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ParallelTestHelper.Repeat (delegate {
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int amount = -1;
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const int count = 10;
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const int threads = 5;
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ParallelTestHelper.ParallelStressTest (coll, (q) => {
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int t = Interlocked.Increment (ref amount);
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for (int i = 0; i < count; i++)
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coll.TryAdd (t);
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}, threads);
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Assert.AreEqual (threads * count, coll.Count, "#-1");
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int[] values = new int[threads];
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int temp;
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while (coll.TryTake (out temp)) {
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values[temp]++;
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}
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for (int i = 0; i < threads; i++)
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Assert.AreEqual (count, values[i], "#" + i);
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});
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}
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public static void RemoveStressTest (IProducerConsumerCollection<int> coll, CheckOrderingType order)
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{
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ParallelTestHelper.Repeat (delegate {
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const int count = 10;
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const int threads = 5;
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const int delta = 5;
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for (int i = 0; i < (count + delta) * threads; i++)
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while (!coll.TryAdd (i));
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bool state = true;
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bool ran = false;
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Assert.AreEqual ((count + delta) * threads, coll.Count, "#0");
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ParallelTestHelper.ParallelStressTest (coll, (q) => {
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ran = true;
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bool s = true;
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int t;
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for (int i = 0; i < count; i++) {
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s &= coll.TryTake (out t);
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// try again in case it was a transient failure
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if (!s && coll.TryTake (out t))
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s = true;
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}
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if (!s)
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state = false;
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}, threads);
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Assert.IsTrue (ran, "#1-pre");
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Assert.IsTrue (state, "#1");
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Assert.AreEqual (delta * threads, coll.Count, "#2");
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string actual = string.Empty;
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int temp;
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while (coll.TryTake (out temp)) {
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actual += temp.ToString ();;
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}
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IEnumerable<int> range = Enumerable.Range (order == CheckOrderingType.Reversed ? 0 : count * threads, delta * threads);
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if (order == CheckOrderingType.Reversed)
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range = range.Reverse ();
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string expected = range.Aggregate (string.Empty, (acc, v) => acc + v);
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if (order == CheckOrderingType.DontCare) {
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Assert.That (actual, new CollectionEquivalentConstraint (expected), "#3, same");
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} else {
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Assert.AreEqual (expected, actual, "#3");
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Assert.That (actual, new EqualConstraint (expected), "#3, in order");
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}
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}, 100);
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}
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}
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}
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