[74-74] InputStreamSourceSpec (#6622)

Co-authored-by: Aaron Stannard <[email protected]>

Author: eaba

src/core/Akka.Streams.Tests/IO/InputStreamSourceSpec.cs

@@ -9,6 +9,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using Akka.IO;
 using Akka.Streams.Dsl;
 using Akka.Streams.TestKit;
@@ -174,23 +175,22 @@ public void InputStreamSource_must_not_signal_when_no_demand()
         }
 
         [Fact]
-        public void InputStreamSource_must_read_bytes_from_InputStream()
+        public async Task InputStreamSource_must_read_bytes_from_InputStream()
         {
-            this.AssertAllStagesStopped(() =>
-            {
-                var f = StreamConverters.FromInputStream(() => new ListInputStream(new[] {"a", "b", "c"}))
-                    .RunWith(Sink.First<ByteString>(), _materializer);
+            await this.AssertAllStagesStoppedAsync(() => {
+                var f = StreamConverters.FromInputStream(() => new ListInputStream(new[] { "a", "b", "c" }))                                                                             
+                .RunWith(Sink.First<ByteString>(), _materializer);
 
                 f.Wait(TimeSpan.FromSeconds(3)).Should().BeTrue();
                 f.Result.Should().BeEquivalentTo(ByteString.FromString("abc"));
+                return Task.CompletedTask;
             }, _materializer);
         }
 
         [Fact]
-        public void InputStreamSource_must_emit_as_soon_as_read()
+        public async Task InputStreamSource_must_emit_as_soon_as_read()
         {
-            this.AssertAllStagesStopped(() =>
-            {
+            await this.AssertAllStagesStoppedAsync(() => {
                 var latch = new TestLatch(1);
                 var probe = StreamConverters.FromInputStream(() => new EmittedInputStream(latch), chunkSize: 1)
                     .RunWith(this.SinkProbe<ByteString>(), _materializer);
@@ -199,6 +199,7 @@ public void InputStreamSource_must_emit_as_soon_as_read()
                 probe.ExpectNext(ByteString.FromString("M"));
                 latch.CountDown();
                 probe.ExpectComplete();
+                return Task.CompletedTask;
             }, _materializer);
         }
     }