Refatcored to async Tests (#5549)

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

Author: eaba

src/core/Akka.Tests/Loggers/LoggerSpec.cs

@@ -29,12 +29,12 @@ public LoggerSpec(ITestOutputHelper output) : base(Config, output)
         { }
 
         [Fact]
-        public void TestOutputLogger_WithBadFormattingMustNotThrow()
+        public async Task TestOutputLogger_WithBadFormattingMustNotThrow()
         {
             var events = new List<LogEvent>();
 
             // Need to wait until TestOutputLogger initializes
-            Thread.Sleep(200);
+            await Task.Delay(500);
             Sys.EventStream.Subscribe(TestActor, typeof(LogEvent));
 
             Sys.Log.Error(new FakeException("BOOM"), Case.t, Case.p);
@@ -68,7 +68,7 @@ public void TestOutputLogger_WithBadFormattingMustNotThrow()
         }
 
         [Fact]
-        public void DefaultLogger_WithBadFormattingMustNotThrow()
+        public async Task DefaultLogger_WithBadFormattingMustNotThrow()
         {
             var config = ConfigurationFactory.ParseString("akka.loggers = [\"Akka.Event.DefaultLogger\"]");
             var sys2 = ActorSystem.Create("DefaultLoggerTest", config.WithFallback(Sys.Settings.Config));
@@ -88,11 +88,11 @@ public void DefaultLogger_WithBadFormattingMustNotThrow()
             sys2.Log.Debug(Case.t, Case.p);
             probe.ExpectMsg<Debug>();
 
-            sys2.Terminate().Wait();
+            await sys2.Terminate();
         }
 
         [Fact]
-        public void StandardOutLogger_WithBadFormattingMustNotThrow()
+        public async Task StandardOutLogger_WithBadFormattingMustNotThrow()
         {
             var config = ConfigurationFactory.ParseString("akka.loggers = [\"Akka.Event.StandardOutLogger\"]");
             var sys2 = ActorSystem.Create("StandardOutLoggerTest", config.WithFallback(Sys.Settings.Config));
@@ -112,7 +112,7 @@ public void StandardOutLogger_WithBadFormattingMustNotThrow()
             sys2.Log.Debug(Case.t, Case.p);
             probe.ExpectMsg<Debug>();
 
-            sys2.Terminate().Wait();
+            await sys2.Terminate();
         }
 
         [Theory]