added the failing test for #116

test/DryIoc.IssuesTests/GHIssue116_ReOpened_DryIoc_Resolve_with_decorators_goes_wrong_for_parallel_execution.cs

@@ -0,0 +1,66 @@
+using System.Text;
+using System.Threading.Tasks;
+
+using NUnit.Framework;
+
+namespace DryIoc.IssuesTests
+{
+    // [TestFixture]
+    public class GHIssue116_ReOpened_DryIoc_Resolve_with_decorators_goes_wrong_for_parallel_execution : ITest
+    {
+        public int Run()
+        {
+            DryIoc_Resolve_parallel_execution_on_repeat(10).GetAwaiter().GetResult();
+            return 1;
+        }
+
+        interface IQuery<T> { }
+        class Query<T> : IQuery<T> { };
+        class QueryDecorator<T> : IQuery<T>
+        {
+            public QueryDecorator(IQuery<T> decoratee) { }
+        }
+
+        public async Task DryIoc_Resolve_parallel_execution_on_repeat(int repeatCount)
+        {
+            for (var i = 0; i < repeatCount; i++)
+                await DryIoc_Resolve_parallel_execution();
+        }
+
+        // [Test, Repeat(10)]
+        public async Task DryIoc_Resolve_parallel_execution()
+        {
+            var container = new Container();
+
+            container.Register(typeof(IQuery<string>), typeof(Query<string>));
+            container.Register(typeof(IQuery<string>), typeof(QueryDecorator<string>), setup: Setup.Decorator);
+
+            IQuery<string> ResolveInScope()
+            {
+                using (var scope = container.OpenScope())
+                {
+                    return scope.Resolve<IQuery<string>>();
+                }
+            }
+
+            const int tasksCount = 32;
+
+            var tasks = new Task<IQuery<string>>[tasksCount];
+            for (var i = 0; i < tasks.Length; i++)
+                tasks[i] = Task.Run(() => ResolveInScope());
+
+            await Task.WhenAll(tasks);
+
+            var failed = false;
+            var sb = new StringBuilder(tasks.Length);
+            for (var i = 0; i < tasks.Length; i++)
+            {   
+                var success = tasks[i].Result is QueryDecorator<string>;
+                if (!success) failed = true;
+                sb.Append(success ? '_' : 'F');
+            }
+
+            Assert.IsFalse(failed, $"Some tasks are failed [{sb}]");
+        }
+    }
+}