[15-74]FlowInitialDelaySpec (#6671)

Author: eaba

src/core/Akka.Streams.Tests/Dsl/FlowInitialDelaySpec.cs

@@ -1,13 +1,14 @@
 //-----------------------------------------------------------------------
 // <copyright file="FlowInitialDelaySpec.cs" company="Akka.NET Project">
-//     Copyright (C) 2009-2023 Lightbend Inc. <http://www.lightbend.com>
-//     Copyright (C) 2013-2023 .NET Foundation <https://github.com/akkadotnet/akka.net>
+//     Copyright (C) 2009-2022 Lightbend Inc. <http://www.lightbend.com>
+//     Copyright (C) 2013-2022 .NET Foundation <https://github.com/akkadotnet/akka.net>
 // </copyright>
 //-----------------------------------------------------------------------
 
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using Akka.Streams.Dsl;
 using Akka.Streams.TestKit;
 using Akka.TestKit;
@@ -30,48 +31,47 @@ public FlowInitialDelaySpec(ITestOutputHelper helper) : base(helper)
         }
 
         [Fact]
-        public void Flow_InitialDelay_must_work_with_zero_delay()
+        public async Task Flow_InitialDelay_must_work_with_zero_delay()
         {
-            this.AssertAllStagesStopped(() =>
-            {
+            await this.AssertAllStagesStoppedAsync(() => {
                 var task = Source.From(Enumerable.Range(1, 10))
-                    .InitialDelay(TimeSpan.Zero)
-                    .Grouped(100)
-                    .RunWith(Sink.First<IEnumerable<int>>(), Materializer);
+                .InitialDelay(TimeSpan.Zero)
+                .Grouped(100)
+                .RunWith(Sink.First<IEnumerable<int>>(), Materializer);
                 task.Wait(TimeSpan.FromSeconds(1)).Should().BeTrue();
-                task.Result.Should().BeEquivalentTo(Enumerable.Range(1,10));
+                task.Result.Should().BeEquivalentTo(Enumerable.Range(1, 10));
+                return Task.CompletedTask;
             }, Materializer);
         }
 
         [Fact]
-        public void Flow_InitialDelay_must_delay_elements_by_the_specified_time_but_not_more()
+        public async Task Flow_InitialDelay_must_delay_elements_by_the_specified_time_but_not_more()
         {
-            this.AssertAllStagesStopped(() =>
-            {
+            await this.AssertAllStagesStoppedAsync(() => {
                 var task = Source.From(Enumerable.Range(1, 10))
-                    .InitialDelay(TimeSpan.FromSeconds(2))
-                    .InitialTimeout(TimeSpan.FromSeconds(1))
-                    .RunWith(Sink.Ignore<int>(), Materializer);
+                .InitialDelay(TimeSpan.FromSeconds(2))
+                .InitialTimeout(TimeSpan.FromSeconds(1))
+                .RunWith(Sink.Ignore<int>(), Materializer);
                 task.Invoking(t => t.Wait(TimeSpan.FromSeconds(2))).Should().Throw<TimeoutException>();
+                return Task.CompletedTask;
             }, Materializer);
         }
 
         [Fact]
-        public void Flow_InitialDelay_must_properly_ignore_timer_while_backpressured()
+        public async Task Flow_InitialDelay_must_properly_ignore_timer_while_backpressured()
         {
-            this.AssertAllStagesStopped(() =>
-            {
+            await this.AssertAllStagesStoppedAsync(async() => {
                 var probe = this.CreateSubscriberProbe<int>();
                 Source.From(Enumerable.Range(1, 10))
                     .InitialDelay(TimeSpan.FromSeconds(0.5))
                     .RunWith(Sink.FromSubscriber(probe), Materializer);
 
-                probe.EnsureSubscription();
-                probe.ExpectNoMsg(TimeSpan.FromSeconds(1.5));
-                probe.Request(20);
-                probe.ExpectNextN(Enumerable.Range(1, 10));
+                await probe.EnsureSubscriptionAsync();
+                await probe.ExpectNoMsgAsync(TimeSpan.FromSeconds(1.5));
+                await probe.RequestAsync(20);
+                await probe.ExpectNextNAsync(Enumerable.Range(1, 10));
 
-                probe.ExpectComplete();
+                await probe.ExpectCompleteAsync();
             }, Materializer);
         }
     }