public void WhenValueAvailable_Calls_Action_Immediately_If_Value_Already_Is_Available()
{
var taskCompletionSource = new TaskCompletionSource <int>();
var taskLazy = new TaskLazy <int>(taskCompletionSource.Task);
taskCompletionSource.SetResult(42);
bool called = false;
taskLazy.WhenValueAvailable(result =>
{
Assert.AreEqual(42, result);
called = true;
}).Wait();
Assert.IsTrue(called);
}
public void When_Value_Available_Executes_When_Value_Becomes_Available()
{
var taskCompletionSource = new TaskCompletionSource <int>();
var taskLazy = new TaskLazy <int>(taskCompletionSource.Task);
bool called = false;
var task = taskLazy.WhenValueAvailable(result =>
{
Assert.AreEqual(42, result);
called = true;
});
Assert.IsFalse(called);
taskCompletionSource.SetResult(42);
task.Wait();
Assert.IsTrue(called);
}
