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using System;
using System.IO;
using NUnit.Framework;
using Mono.Addins;
using SimpleApp;
using System.Threading;
using System.Diagnostics;
using System.Linq;
namespace UnitTests
{
[TestFixture ()]
public class TestMultiThreading: TestBase
{
public override void Setup ()
{
base.Setup ();
GlobalInfoCondition.Value = "res";
}
[Test]
public void ChildConditionAttributeMultithread ()
{
int threads = 50;
using var testData = new TestData(threads);
GlobalInfoCondition.Value = "";
testData.StartThreads (RunChildConditionAttributeTest);
for (int n = 0; n < 20; n++) {
Console.WriteLine ("Step " + n);
testData.CheckCounters (0, 10000);
GlobalInfoCondition.Value = "foo";
testData.CheckCounters (1, 1000);
GlobalInfoCondition.Value = "";
}
}
void RunChildConditionAttributeTest (int index, TestData data)
{
while (!data.Stopped) {
var writers = AddinManager.GetExtensionObjects<IWriter> ("/SimpleApp/ConditionedWriters");
data.Counters [index] = writers.Length;
}
}
[Test]
public void EnableDisableMultithread ()
{
int threads = 50;
int steps = 20;
using var testData = new TestData (threads);
testData.StartThreads ((index, data) => {
while (!data.Stopped) {
var writers = AddinManager.GetExtensionObjects<IWriter> ("/SimpleApp/Writers");
testData.Counters [index] = writers.Length;
}
});
for (int n = 0; n < steps; n++) {
Console.WriteLine ("Step " + n);
testData.CheckCounters (4, 10000);
var ainfo1 = AddinManager.Registry.GetAddin ("SimpleApp.HelloWorldExtension");
ainfo1.Enabled = false;
testData.CheckCounters (3, 1000);
var ainfo2 = AddinManager.Registry.GetAddin ("SimpleApp.FileContentExtension");
ainfo2.Enabled = false;
testData.CheckCounters (2, 1000);
ainfo1.Enabled = true;
ainfo2.Enabled = true;
}
}
[Test]
public void EventsMultithread ()
{
int threads = 50;
int steps = 20;
var testData = new TestData (threads);
GlobalInfoCondition.Value = "";
testData.StartThreads (RunEventsMultithread);
for (int n = 0; n < steps; n++) {
Console.WriteLine ("Step " + n);
testData.CheckCounters (0, 10000);
GlobalInfoCondition.Value = "foo";
testData.CheckCounters (1, 1000);
GlobalInfoCondition.Value = "";
}
}
void RunEventsMultithread (int index, TestData data)
{
while (!data.Stopped) {
int count = 0;
ExtensionNodeEventHandler handler = (s, args) => {
count++;
};
AddinManager.AddExtensionNodeHandler("/SimpleApp/ConditionedWriters", handler);
data.Counters [index] = count;
AddinManager.RemoveExtensionNodeHandler ("/SimpleApp/ConditionedWriters", handler);
}
}
[Test]
public void ChildConditionWithContextMultithread ()
{
int threads = 50;
using var testData = new TestData (threads);
GlobalInfoCondition.Value = "";
testData.StartThreads (RunChildConditionWithContextMultithread);
for (int n = 0; n < 20; n++) {
Console.WriteLine ("Step " + n);
testData.CheckCounters (0, 10000);
GlobalInfoCondition.Value = "foo";
testData.CheckCounters (1, 1000);
GlobalInfoCondition.Value = "";
}
}
void RunChildConditionWithContextMultithread (int index, TestData data)
{
var ctx = AddinManager.CreateExtensionContext ();
var writers = ctx.GetExtensionNode ("/SimpleApp/ConditionedWriters");
while (!data.Stopped) {
data.Counters [index] = writers.ChildNodes.Count;
}
}
class TestData: IDisposable
{
int numThreads;
public bool Stopped;
public int [] Counters;
public TestData (int numThreads)
{
this.numThreads = numThreads;
Counters = new int [numThreads];
}
public void CheckCounters (int expectedResult, int timeout)
{
var sw = Stopwatch.StartNew ();
do {
if (Counters.All (c => c == expectedResult))
return;
Thread.Sleep (10);
} while (sw.ElapsedMilliseconds < timeout);
Assert.Fail ();
}
public void Dispose ()
{
Stopped = true;
}
public void StartThreads (Action<int, TestData> threadAction)
{
for (int n = 0; n < numThreads; n++) {
Counters [n] = -1;
var index = n;
var t = new Thread (() => threadAction(index, this));
t.Start ();
}
}
}
}
}
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