public void MultithreadedTestRig_WaitForThreads()
{
var rig = new MultithreadedTestRig <TestContext>();
foreach (var i in Enumerable.Range(0, 4))
{
rig.CreateThread(
ctx =>
{
Thread.Sleep(250 * i);
},
ctx =>
{
ctx.CancellationRequested = true;
},
new TestContext());
}
rig.CreateThread(ctx => { }, ctx => { }, new TestContext());
var sw = new Stopwatch();
sw.Start();
rig.StartThreads();
rig.WaitForThreads();
sw.Stop();
// 250 * i, when max(i) == 3
sw.ElapsedMilliseconds.Should().BeGreaterOrEqualTo(750);
rig.Threads.Select(t => t.Item1.IsAlive).Should().AllBeEquivalentTo(false);
rig.Success.Should().BeTrue();
}
public void MultithreadedTestRig_Exception()
{
var rig = new MultithreadedTestRig <TestContext>();
rig.CreateThread(
ctx =>
{
while (true)
{
Thread.Sleep(100);
if (ctx.CancellationRequested)
{
break;
}
}
},
ctx =>
{
ctx.CancellationRequested = true;
},
new TestContext()
);
rig.CreateThread(
ctx =>
{
Thread.Sleep(500);
throw new Exception("Exception message");
},
ctx =>
{
},
new TestContext(), "Faulted thread");
var sw = new Stopwatch();
sw.Start();
rig.StartThreads();
rig.WaitForThreads();
sw.Stop();
sw.ElapsedMilliseconds.Should().BeGreaterOrEqualTo(500);
rig.Threads.Select(t => t.Item1.IsAlive).Should().AllBeEquivalentTo(false);
rig.Success.Should().BeFalse();
rig.CaughtException.Should().NotBeNull();
rig.CaughtException.Message.Should().Be("Exception message");
rig.CaughtExceptionThread.Should().Be("Faulted thread");
}
public void MultithreadedTestRig_ContractFailure()
{
var rig = new MultithreadedTestRig <TestContext>();
rig.CreateThread(
ctx =>
{
Contract.Assert(false, "Contract failed");
},
ctx =>
{
ctx.CancellationRequested = true;
},
new TestContext()
);
rig.StartThreads();
rig.WaitForThreads();
#if DEBUG
rig.Success.Should().BeFalse();
rig.CaughtException.Should().NotBeNull();
#endif
}
