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TestPooling.cs
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TestPooling.cs
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using System;
using System.Collections.Generic;
using System.Threading;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using VW;
using VW.Labels;
using VW.Serializer.Attributes;
using System.IO;
namespace cs_unittest
{
[TestClass]
public class TestPooling
{
[TestMethod]
[TestCategory("ObjectPool")]
[ExpectedException(typeof(InvalidOperationException))]
public void ObjectPoolTestEmptyFactory()
{
new ObjectPool<Disposable, Disposable>().GetOrCreate();
}
[TestMethod]
[TestCategory("ObjectPool")]
[ExpectedException(typeof(ObjectDisposedException))]
public void ObjectPoolTestDisposed1()
{
var objectPool = new ObjectPool<Disposable, Disposable>(ObjectFactory.Create(new Disposable(), d => d.Create()));
objectPool.Dispose();
objectPool.GetOrCreate();
}
[TestMethod]
[TestCategory("ObjectPool")]
[ExpectedException(typeof(ObjectDisposedException))]
public void ObjectPoolTestDisposed2()
{
var objectPool = new ObjectPool<Disposable, Disposable>(ObjectFactory.Create(new Disposable(), d => d.Create()));
objectPool.Dispose();
objectPool.UpdateFactory(ObjectFactory.Create(new Disposable(), d => d.Create()));
}
[TestMethod]
[TestCategory("ObjectPool")]
public void ObjectPoolTestDangling()
{
var factory = new Disposable();
var objectPool = new ObjectPool<Disposable, Disposable>(ObjectFactory.Create(factory, d => d.Create()));
var p1 = objectPool.GetOrCreate();
objectPool.Dispose();
Assert.IsTrue(factory.Disposed);
Assert.AreEqual(1, factory.Children.Count);
Assert.IsFalse(factory.Children[0].Disposed);
// don't throw exception if we return pool too late
p1.Dispose();
}
[TestMethod]
[TestCategory("ObjectPool")]
public void ObjectPoolTestFactory()
{
var factory1 = new Disposable();
var factory2 = new Disposable();
var objectPool = new ObjectPool<Disposable, Disposable>();
objectPool.UpdateFactory(ObjectFactory.Create(factory1, d => d.Create()));
var p3 = objectPool.GetOrCreate();
p3.Dispose();
objectPool.UpdateFactory(ObjectFactory.Create(factory2, d => d.Create()));
Assert.IsTrue(factory1.Disposed);
var p1 = objectPool.GetOrCreate();
var p2 = objectPool.GetOrCreate();
p1.Dispose();
p2.Dispose();
p1 = objectPool.GetOrCreate();
p1.Dispose();
objectPool.Dispose();
factory1.AssertChildrenDisposed();
Assert.AreEqual(1, factory1.Children.Count);
factory2.AssertChildrenDisposed();
Assert.AreEqual(2, factory2.Children.Count);
Assert.IsTrue(factory2.Disposed);
}
[TestMethod]
[TestCategory("ObjectPool")]
public void ThreadPoolNull()
{
using (var pool = new VowpalWabbitThreadedPrediction())
{
using (var vw = pool.GetOrCreate())
{
Assert.IsNull(vw.Value);
}
pool.UpdateModel(new VowpalWabbitModel(string.Empty));
using (var vw = pool.GetOrCreate())
{
Assert.IsNotNull(vw.Value);
}
}
}
[TestMethod]
[TestCategory("ObjectPool")]
public void ObjectPoolTestConcurrency()
{
var factories = new List<Disposable> { new Disposable() };
var objectPool = new ObjectPool<Disposable, Disposable>(ObjectFactory.Create(factories[0], d => d.Create()));
var t1 = new Thread(() =>
{
for (int i = 0; i < 500; i++)
{
var p = objectPool.GetOrCreate();
Thread.Sleep(5);
p.Dispose();
}
});
var t2 = new Thread(() =>
{
for (int i = 0; i < 500; i++)
{
var p = objectPool.GetOrCreate();
Thread.Sleep(7);
p.Dispose();
}
});
var t3 = new Thread(() =>
{
for (int i = 0; i < 20; i++)
{
var f = new Disposable();
objectPool.UpdateFactory(ObjectFactory.Create(f, d => d.Create()));
Thread.Sleep(20);
}
});
t1.Start();
t2.Start();
t3.Start();
t1.Join();
t2.Join();
t3.Join();
objectPool.Dispose();
foreach (var f in factories)
{
Assert.IsTrue(f.Disposed);
f.AssertChildrenDisposed();
}
}
public class SimpleData
{
[Feature]
public float Value { get; set; }
}
[TestMethod]
[TestCategory("ObjectPool")]
public void TestSaveLoadSkip()
{
using (var vw = new VowpalWabbit<SimpleData>("--binary -f saveload.model"))
{
for (int i = 0; i < 100; i++)
{
vw.Learn(new SimpleData { Value = 1 }, new SimpleLabel { Label = 1 });
vw.Learn(new SimpleData { Value = -1 }, new SimpleLabel { Label = -1 });
}
Assert.AreEqual(1, vw.Predict(new SimpleData { Value = 1 }, VowpalWabbitPredictionType.Scalar));
Assert.AreEqual(-1, vw.Predict(new SimpleData { Value = -1 }, VowpalWabbitPredictionType.Scalar));
}
using (var model = new VowpalWabbitModel(new VowpalWabbitSettings { Arguments = "--binary", ModelStream = File.Open("saveload.model", FileMode.Open) }))
using (var pool = new VowpalWabbitThreadedPrediction<SimpleData>(new VowpalWabbitSettings { Model = model }))
{
using (var vw = pool.GetOrCreate())
{
Assert.AreEqual(-1, vw.Value.Predict(new SimpleData { Value = -1 }, VowpalWabbitPredictionType.Scalar));
}
}
}
public class Disposable : IDisposable
{
public Disposable()
{
this.Children = new List<Disposable>();
}
public void AssertChildrenDisposed()
{
foreach (var item in this.Children)
{
Assert.IsTrue(item.Disposed);
}
}
public List<Disposable> Children { get; set; }
public bool Disposed { get; set; }
public void Dispose()
{
this.Disposed = true;
}
public Disposable Create()
{
var d = new Disposable();
this.Children.Add(d);
return d;
}
}
}
}