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#if NET_4_0
//
// CollectionStressTestHelper.cs
//
// Author:
// Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
//
// Copyright (c) 2009 Jérémie "Garuma" Laval
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Concurrent;
using System.Threading;
using System.Linq;
using System.Threading.Tasks;
using NUnit;
using NUnit.Framework;
using NUnit.Framework.Constraints;
namespace MonoTests.System.Collections.Concurrent
{
public enum CheckOrderingType {
InOrder,
Reversed,
DontCare
}
public static class CollectionStressTestHelper
{
public static void AddStressTest (IProducerConsumerCollection<int> coll)
{
ParallelTestHelper.Repeat (delegate {
int amount = -1;
const int count = 10;
const int threads = 5;
ParallelTestHelper.ParallelStressTest (coll, (q) => {
int t = Interlocked.Increment (ref amount);
for (int i = 0; i < count; i++)
coll.TryAdd (t);
}, threads);
Assert.AreEqual (threads * count, coll.Count, "#-1");
int[] values = new int[threads];
int temp;
while (coll.TryTake (out temp)) {
values[temp]++;
}
for (int i = 0; i < threads; i++)
Assert.AreEqual (count, values[i], "#" + i);
});
}
public static void RemoveStressTest (IProducerConsumerCollection<int> coll, CheckOrderingType order)
{
ParallelTestHelper.Repeat (delegate {
const int count = 10;
const int threads = 5;
const int delta = 5;
for (int i = 0; i < (count + delta) * threads; i++)
while (!coll.TryAdd (i));
bool state = true;
bool ran = false;
Assert.AreEqual ((count + delta) * threads, coll.Count, "#0");
ParallelTestHelper.ParallelStressTest (coll, (q) => {
ran = true;
bool s = true;
int t;
for (int i = 0; i < count; i++) {
s &= coll.TryTake (out t);
// try again in case it was a transient failure
if (!s && coll.TryTake (out t))
s = true;
}
if (!s)
state = false;
}, threads);
Assert.IsTrue (ran, "#1-pre");
Assert.IsTrue (state, "#1");
Assert.AreEqual (delta * threads, coll.Count, "#2");
string actual = string.Empty;
int temp;
while (coll.TryTake (out temp)) {
actual += temp.ToString ();;
}
IEnumerable<int> range = Enumerable.Range (order == CheckOrderingType.Reversed ? 0 : count * threads, delta * threads);
if (order == CheckOrderingType.Reversed)
range = range.Reverse ();
string expected = range.Aggregate (string.Empty, (acc, v) => acc + v);
if (order == CheckOrderingType.DontCare) {
Assert.That (actual, new CollectionEquivalentConstraint (expected), "#3, same");
} else {
Assert.AreEqual (expected, actual, "#3");
Assert.That (actual, new EqualConstraint (expected), "#3, in order");
}
}, 100);
}
}
}
#endif
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