Solution restructured to use multiple test projects

test/AMWD.Common.Tests/Utilities/DelayedTaskWithResultTest.cs

@@ -0,0 +1,130 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using AMWD.Common.Utilities;
+
+namespace AMWD.Common.Tests.Utilities
+{
+	[TestClass]
+	public class DelayedTaskWithResultTest
+	{
+		[TestMethod]
+		public void ShouldCreateNewDelayedTaskNotStarting()
+		{
+			// arrange
+			int executionCount = 0;
+			var delay = TimeSpan.FromMilliseconds(100);
+			int[] Function() { executionCount++; return [42, 21]; }
+
+			// act
+			var cts = new CancellationTokenSource(delay.Add(TimeSpan.FromSeconds(1)));
+			var delayedTaskWithResult = DelayedTask.Create(Function, delay);
+			SpinWait.SpinUntil(() => executionCount > 0 || cts.IsCancellationRequested);
+
+			// assert
+			Assert.IsNotNull(delayedTaskWithResult);
+			Assert.AreEqual(delay, delayedTaskWithResult.Delay);
+			Assert.IsFalse(delayedTaskWithResult.IsRunning);
+			Assert.IsFalse(delayedTaskWithResult.IsWaitingToRun);
+			Assert.IsNull(delayedTaskWithResult.Exception);
+			Assert.AreEqual(0, executionCount);
+		}
+
+		[TestMethod]
+		[System.Diagnostics.CodeAnalysis.SuppressMessage("Performance", "CA1861")]
+		public async Task ShouldCreateNewDelayedTaskStarting()
+		{
+			// arrange
+			int executionCount = 0;
+			var delay = TimeSpan.FromMilliseconds(100);
+			int[] Function() { executionCount++; return [42, 21]; }
+
+			// act
+			var delayedTaskWithResult = DelayedTask.Run(Function, delay);
+			int[] result = await delayedTaskWithResult;
+
+			// assert
+			Assert.IsNotNull(delayedTaskWithResult);
+			Assert.AreEqual(delay, delayedTaskWithResult.Delay);
+			Assert.IsFalse(delayedTaskWithResult.IsRunning);
+			Assert.IsFalse(delayedTaskWithResult.IsWaitingToRun);
+			Assert.IsNull(delayedTaskWithResult.Exception);
+			Assert.AreEqual(1, executionCount);
+			CollectionAssert.AreEqual(new[] { 42, 21 }, result);
+		}
+
+		[TestMethod]
+		public void ShouldHaveAnExceptionSet()
+		{
+			// arrange
+			var delay = TimeSpan.FromMilliseconds(100);
+#pragma warning disable CS0162 // Unreachable Code detected.
+			static int[] Function() { throw new Exception("TEST :D"); return [42, 21]; }
+#pragma warning restore CS0162 // Unreachable Code detected
+
+			// act
+			var delayedTaskWithResult = DelayedTask.Run(Function, delay);
+
+			var awaiter = delayedTaskWithResult.GetAwaiter();
+			SpinWait.SpinUntil(() => awaiter.IsCompleted);
+
+			// assert
+			Assert.IsNotNull(delayedTaskWithResult);
+			Assert.IsFalse(delayedTaskWithResult.IsRunning);
+			Assert.IsFalse(delayedTaskWithResult.IsWaitingToRun);
+			Assert.IsNotNull(delayedTaskWithResult.Exception);
+		}
+
+		[TestMethod]
+		public void ShouldUseExceptionHandler()
+		{
+			// arrange
+			string exceptionText = null;
+			var delay = TimeSpan.FromMilliseconds(100);
+#pragma warning disable CS0162 // Unreachable Code detected.
+			static int[] Function() { throw new Exception("TEST :D"); return [42, 21]; }
+#pragma warning restore CS0162 // Unreachable Code detected
+			void ExceptionHandler(Exception ex) { exceptionText = ex.Message; }
+
+			// act
+			var delayedTaskWithResult = DelayedTask.Run(Function, delay)
+				.WithExceptionHandler(ExceptionHandler);
+
+			var awaiter = delayedTaskWithResult.GetAwaiter();
+			SpinWait.SpinUntil(() => awaiter.IsCompleted);
+
+			// assert
+			Assert.IsNotNull(delayedTaskWithResult);
+			Assert.IsFalse(delayedTaskWithResult.IsRunning);
+			Assert.IsFalse(delayedTaskWithResult.IsWaitingToRun);
+			Assert.IsNotNull(delayedTaskWithResult.Exception);
+			Assert.AreEqual("TEST :D", exceptionText);
+		}
+
+		[TestMethod]
+		[System.Diagnostics.CodeAnalysis.SuppressMessage("Performance", "CA1861")]
+		public async Task ShouldReturnNormalTask()
+		{
+			// arrange
+			int executionCount = 0;
+			var delay = TimeSpan.FromMilliseconds(100);
+			int[] Function() { executionCount++; return [42, 21]; }
+			var delayedTaskWithResult = DelayedTask.Create(Function, delay);
+
+			// act
+			delayedTaskWithResult.Reset();
+			var task = delayedTaskWithResult.Task;
+			int[] result = await task;
+
+			// assert
+			Assert.IsNotNull(delayedTaskWithResult);
+			Assert.IsNotNull(task);
+			Assert.IsInstanceOfType(task, typeof(Task));
+			Assert.IsFalse(delayedTaskWithResult.IsRunning);
+			Assert.IsFalse(delayedTaskWithResult.IsWaitingToRun);
+			Assert.AreEqual(1, executionCount);
+			Assert.AreEqual(TaskStatus.RanToCompletion, task.Status);
+			CollectionAssert.AreEqual(new int[] { 42, 21 }, result);
+		}
+	}
+}