Moving Never tests.

Ix.NET/Source/System.Interactive.Async.Tests/AsyncTests.Creation.cs

@@ -36,17 +36,6 @@ namespace Tests
             HasNext(xs.GetAsyncEnumerator(), 42);
         }
 
-        [Fact]
-        public async Task Never()
-        {
-            var xs = AsyncEnumerableEx.Never<int>();
-
-            var e = xs.GetAsyncEnumerator();
-            Assert.False(e.MoveNextAsync().IsCompleted); // Very rudimentary check
-            AssertThrows<InvalidOperationException>(() => Nop(e.Current));
-            await e.DisposeAsync();
-        }
-
         [Fact]
         public void Throw_Null()
         {

Ix.NET/Source/System.Interactive.Async.Tests/System/Linq/Operators/Never.cs

@@ -0,0 +1,29 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information. 
+
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace Tests
+{
+    public class Never : AsyncEnumerableExTests
+    {
+        [Fact]
+        public async Task Never1()
+        {
+            var xs = AsyncEnumerableEx.Never<int>();
+
+            var e = xs.GetAsyncEnumerator();
+            Assert.False(e.MoveNextAsync().IsCompleted); // Very rudimentary check
+            AssertThrows<InvalidOperationException>(() => Nop(e.Current));
+            await e.DisposeAsync();
+        }
+
+        private void Nop(object o)
+        {
+        }
+    }
+}