public void TestSay_Task_runs_concurrently()
{
var sut = new Concurrency();
Task.Run(() => sut.Say("Hello", TimeSpan.FromMilliseconds(10)));
sut.Say("World", TimeSpan.FromMilliseconds(1));
var output = sut.Logs.ToArray();
Assert.Equal(5, output.Length);
Assert.Equal(5, output.Count(message => message.EndsWith("World")));
}
public void TestSay()
{
var sut = new Concurrency();
var duration = TimeSpan.FromMilliseconds(5);
Task.Run(() => sut.Say("Hello", duration));
sut.Say("World", duration);
// wait for task same as Go's.
Thread.Sleep(duration);
var output = sut.Logs.ToArray();
Assert.Equal(10, output.Length);
Assert.Equal(5, output.Count(message => message.EndsWith("Hello")));
}
public void Test_wait_Task()
{
var sut = new Concurrency();
// Unlike Go's goroutine, Task has its state.
var task = Task.Run(() => sut.Say("Hi", TimeSpan.FromMilliseconds(5)));
// wait task completes with timeout.
task.Wait(TimeSpan.FromSeconds(1));
var output = sut.Logs.ToArray();
Assert.True(output.All(message => message == "Hi"));
}