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using System;
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using System.Reflection;
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using System.Threading;
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using Implab.Parallels;
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using Implab.Components;
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#if MONO
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using NUnit.Framework;
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using TestClassAttribute = NUnit.Framework.TestFixtureAttribute;
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using TestMethodAttribute = NUnit.Framework.TestAttribute;
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#else
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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#endif
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namespace Implab.Test {
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[TestClass]
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public class RunnableComponentTests {
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static void ShouldThrow(Action action) {
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try {
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action();
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Assert.Fail();
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} catch(AssertionException) {
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throw;
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} catch {
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}
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}
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class Runnable : RunnableComponent {
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public Runnable(bool initialized) : base(initialized) {
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}
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public Action MockInit {
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get;
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set;
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}
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public Func<IPromise> MockStart {
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get;
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set;
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}
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public Func<IPromise> MockStop {
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get;
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set;
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}
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protected override IPromise OnStart() {
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return MockStart != null ? MockStart() : base.OnStart();
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}
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protected override IPromise OnStop() {
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return MockStop != null ? MockStop() : base.OnStart();
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}
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protected override void OnInitialize() {
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if (MockInit != null)
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MockInit();
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}
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}
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[TestMethod]
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public void NormalFlowTest() {
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var comp = new Runnable(false);
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Assert.AreEqual(ExecutionState.Created, comp.State);
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comp.Init();
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Assert.AreEqual(ExecutionState.Ready, comp.State);
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comp.Start().Join(1000);
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Assert.AreEqual(ExecutionState.Running, comp.State);
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comp.Stop().Join(1000);
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Assert.AreEqual(ExecutionState.Disposed, comp.State);
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}
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[TestMethod]
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public void InitFailTest() {
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var comp = new Runnable(false) {
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MockInit = () => {
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throw new Exception("BAD");
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}
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};
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ShouldThrow(() => comp.Start());
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ShouldThrow(() => comp.Stop());
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Assert.AreEqual(ExecutionState.Created, comp.State);
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ShouldThrow(comp.Init);
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Assert.AreEqual(ExecutionState.Failed, comp.State);
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ShouldThrow(() => comp.Start());
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ShouldThrow(() => comp.Stop());
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Assert.AreEqual(ExecutionState.Failed, comp.State);
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comp.Dispose();
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Assert.AreEqual(ExecutionState.Disposed, comp.State);
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}
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[TestMethod]
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public void DisposedTest() {
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var comp = new Runnable(false);
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comp.Dispose();
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ShouldThrow(() => comp.Start());
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ShouldThrow(() => comp.Stop());
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ShouldThrow(comp.Init);
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Assert.AreEqual(ExecutionState.Disposed, comp.State);
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}
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[TestMethod]
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public void StartCancelTest() {
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var comp = new Runnable(true) {
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MockStart = () => PromiseHelper.Sleep(100000, 0)
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};
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var p = comp.Start();
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Assert.AreEqual(ExecutionState.Starting, comp.State);
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p.Cancel();
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ShouldThrow(() => p.Join(1000));
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Assert.AreEqual(ExecutionState.Failed, comp.State);
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Assert.IsInstanceOfType(typeof(OperationCanceledException), comp.LastError);
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comp.Dispose();
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}
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[TestMethod]
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public void StartStopTest() {
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var stop = new Signal();
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var comp = new Runnable(true) {
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MockStart = () => PromiseHelper.Sleep(100000, 0),
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MockStop = () => AsyncPool.RunThread(stop.Wait)
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};
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var p1 = comp.Start();
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var p2 = comp.Stop();
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// should enter stopping state
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ShouldThrow(p1.Join);
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Assert.IsTrue(p1.IsCancelled);
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Assert.AreEqual(ExecutionState.Stopping, comp.State);
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stop.Set();
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p2.Join(1000);
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Assert.AreEqual(ExecutionState.Disposed, comp.State);
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}
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[TestMethod]
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public void StartStopFailTest() {
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var comp = new Runnable(true) {
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MockStart = () => PromiseHelper.Sleep(100000, 0).Then(null,null,x => { throw new Exception("I'm dead"); })
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};
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comp.Start();
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var p = comp.Stop();
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// if Start fails to cancel, should fail to stop
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ShouldThrow(() => p.Join(1000));
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Assert.AreEqual(ExecutionState.Failed, comp.State);
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Assert.IsNotNull(comp.LastError);
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Assert.AreEqual("I'm dead", comp.LastError.Message);
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}
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[TestMethod]
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public void StopCancelTest() {
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var comp = new Runnable(true) {
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MockStop = () => PromiseHelper.Sleep(100000, 0)
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};
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comp.Start();
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var p = comp.Stop();
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Assert.AreEqual(ExecutionState.Stopping, comp.State);
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p.Cancel();
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ShouldThrow(() => p.Join(1000));
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Assert.AreEqual(ExecutionState.Failed, comp.State);
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Assert.IsInstanceOfType(typeof(OperationCanceledException), comp.LastError);
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comp.Dispose();
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}
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}
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}
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