Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/class/System.Threading.Tasks.Dataflow/Test/System.Threading.Tasks.Dataflow/EncapsulateTest.cs

@@ -0,0 +1,130 @@
+// EncapsulateTest.cs
+//  
+// Author:
+//       Petr Onderka <gsvick@gmail.com>
+// 
+// Copyright (c) 2012 Petr Onderka
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using System;
+using System.Threading.Tasks;
+using System.Threading.Tasks.Dataflow;
+using NUnit.Framework;
+
+namespace MonoTests.System.Threading.Tasks.Dataflow {
+	[TestFixture]
+	public class EncapsulateTest {
+		[Test]
+		public void CompletionTest ()
+		{
+			var target = new CompletionCheckerBlock<int, int> ();
+			var source = new CompletionCheckerBlock<int, int> ();
+
+			var encapsulated = DataflowBlock.Encapsulate (target, source);
+
+			Assert.AreSame (source.Completion, encapsulated.Completion);
+		}
+
+		[Test]
+		public void CompleteTest ()
+		{
+			var target = new CompletionCheckerBlock<int, int> ();
+			var source = new CompletionCheckerBlock<int, int> ();
+
+			var encapsulated = DataflowBlock.Encapsulate (target, source);
+
+			encapsulated.Complete ();
+
+			Assert.IsFalse (source.WasCompleted);
+			Assert.IsTrue (target.WasCompleted);
+			Assert.AreSame (source.Completion, encapsulated.Completion);
+		}
+
+		[Test]
+		public void FaultTest ()
+		{
+			var target = new CompletionCheckerBlock<int, int> ();
+			var source = new CompletionCheckerBlock<int, int> ();
+
+			var encapsulated = DataflowBlock.Encapsulate (target, source);
+
+			encapsulated.Fault (new Exception ());
+			Assert.IsFalse (source.WasFaulted);
+			Assert.IsTrue (target.WasFaulted);
+			Assert.AreSame (source.Completion, encapsulated.Completion);
+		}
+	}
+
+	class CompletionCheckerBlock<TInput, TOutput> :
+		IPropagatorBlock<TInput, TOutput> {
+		readonly Task completion = Task.FromResult (true);
+
+		public DataflowMessageStatus OfferMessage (
+			DataflowMessageHeader messageHeader, TInput messageValue,
+			ISourceBlock<TInput> source, bool consumeToAccept)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public void Complete ()
+		{
+			WasCompleted = true;
+		}
+
+		public bool WasCompleted { get; private set; }
+
+		public void Fault (Exception exception)
+		{
+			WasFaulted = true;
+		}
+
+		public bool WasFaulted { get; private set; }
+
+		public Task Completion
+		{
+			get { return completion; }
+		}
+
+		public IDisposable LinkTo (ITargetBlock<TOutput> target,
+		                           DataflowLinkOptions linkOptions)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public TOutput ConsumeMessage (DataflowMessageHeader messageHeader,
+		                               ITargetBlock<TOutput> target,
+		                               out bool messageConsumed)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public bool ReserveMessage (DataflowMessageHeader messageHeader,
+		                            ITargetBlock<TOutput> target)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public void ReleaseReservation (DataflowMessageHeader messageHeader,
+		                                ITargetBlock<TOutput> target)
+		{
+			throw new NotImplementedException ();
+		}
+	}
+}