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using System;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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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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namespace Implab.Test
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{
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[TestClass]
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public class AsyncTests
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{
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[TestMethod]
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public void ResolveTest ()
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{
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int res = -1;
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var p = new Promise<int> ();
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p.Then (x => res = x);
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p.Resolve (100);
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Assert.AreEqual (res, 100);
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}
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[TestMethod]
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public void RejectTest ()
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{
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int res = -1;
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Exception err = null;
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var p = new Promise<int> ();
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p.Then (x => res = x, e => err = e);
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p.Reject (new ApplicationException ("error"));
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Assert.AreEqual (res, -1);
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Assert.AreEqual (err.Message, "error");
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}
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[TestMethod]
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public void JoinSuccessTest ()
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{
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var p = new Promise<int> ();
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p.Resolve (100);
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Assert.AreEqual (p.Join (), 100);
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}
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[TestMethod]
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public void JoinFailTest ()
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{
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var p = new Promise<int> ();
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p.Reject (new ApplicationException ("failed"));
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try {
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p.Join ();
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throw new ApplicationException ("WRONG!");
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} catch (TargetInvocationException err) {
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Assert.AreEqual (err.InnerException.Message, "failed");
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} catch {
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Assert.Fail ("Got wrong excaption");
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}
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}
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[TestMethod]
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public void MapTest ()
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{
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var p = new Promise<int> ();
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var p2 = p.Map (x => x.ToString ());
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p.Resolve (100);
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Assert.AreEqual (p2.Join (), "100");
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}
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[TestMethod]
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public void FixErrorTest() {
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var p = new Promise<int>();
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var p2 = p.Error(e => 101);
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p.Reject(new Exception());
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Assert.AreEqual(p2.Join(), 101);
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}
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[TestMethod]
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public void ChainTest ()
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{
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var p1 = new Promise<int> ();
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var p3 = p1.Chain (x => {
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var p2 = new Promise<string> ();
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p2.Resolve (x.ToString ());
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return p2;
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});
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p1.Resolve (100);
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Assert.AreEqual (p3.Join (), "100");
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}
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[TestMethod]
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public void PoolTest ()
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{
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var pid = Thread.CurrentThread.ManagedThreadId;
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var p = AsyncPool.Invoke (() => Thread.CurrentThread.ManagedThreadId);
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Assert.AreNotEqual (pid, p.Join ());
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}
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[TestMethod]
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public void WorkerPoolSizeTest() {
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var pool = new WorkerPool(5,10);
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Assert.AreEqual(5, pool.ThreadCount);
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pool.Invoke(() => { Thread.Sleep(1000); return 10; });
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pool.Invoke(() => { Thread.Sleep(1000); return 10; });
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pool.Invoke(() => { Thread.Sleep(1000); return 10; });
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Assert.AreEqual(5, pool.ThreadCount);
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for (int i = 0; i < 100; i++)
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pool.Invoke(() => { Thread.Sleep(1000); return 10; });
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Assert.AreEqual(10, pool.ThreadCount);
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}
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[TestMethod]
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public void WorkerPoolCorrectTest() {
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var pool = new WorkerPool(5, 20);
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var count = 0;
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for (int i = 0; i < 1000; i++)
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pool
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.Invoke(() => 1)
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.Then(x => Interlocked.Add(ref count, x));
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Assert.AreEqual(1000, count);
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}
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[TestMethod]
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public void ComplexCase1Test() {
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var flags = new bool[3];
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// op1 (aync 200ms) => op2 (async 200ms) => op3 (sync map)
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var p = PromiseHelper
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.Sleep(200, "Alan")
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.Cancelled(() => flags[0] = true)
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.Chain(x =>
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PromiseHelper
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.Sleep(200, "Hi, " + x)
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.Map( y => y )
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.Cancelled(() => flags[1] = true)
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)
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.Cancelled(() => flags[2] = true);
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Thread.Sleep(300);
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p.Cancel();
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try {
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Assert.AreEqual(p.Join(), "Hi, Alan");
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Assert.Fail("Shouldn't get here");
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} catch(OperationCanceledException) {
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}
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Assert.IsFalse(flags[0]);
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Assert.IsTrue(flags[1]);
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Assert.IsTrue(flags[2]);
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}
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}
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}
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