TextConsole - WriteAfterDispose

core/src/TextConsole.cs

@@ -10,18 +10,20 @@ namespace Adventure
     public sealed class TextConsole : IDisposable
     {
         private readonly MessageBus bus;
-        private readonly IDisposable sub;
+        private readonly IDisposable inputSub;
+        private readonly IDisposable outputSub;
 
         public TextConsole(MessageBus bus, TextReader reader, TextWriter writer)
         {
             this.bus = bus;
-            this.sub = this.bus.Subscribe<InputRequestedMessage>(_ => this.ReadLine(reader));
-            this.bus.Subscribe<OutputMessage>(m => writer.WriteLine(m.Text));
+            this.inputSub = this.bus.Subscribe<InputRequestedMessage>(_ => this.ReadLine(reader));
+            this.outputSub = this.bus.Subscribe<OutputMessage>(m => writer.WriteLine(m.Text));
         }
 
         public void Dispose()
         {
-            this.sub.Dispose();
+            this.inputSub.Dispose();
+            this.outputSub.Dispose();
         }
 
         private void ReadLine(TextReader reader)

core/test/TextConsoleTest.cs

@@ -83,5 +83,22 @@ public void WriteTwoLines()
                 sb.ToString().Should().Be("one" + Environment.NewLine + "two" + Environment.NewLine);
             }
         }
+
+        [Fact]
+        public void WriteAfterDispose()
+        {
+            MessageBus bus = new MessageBus();
+            StringBuilder sb = new StringBuilder();
+            using (StringWriter writer = new StringWriter(sb))
+            {
+                using (TextConsole console = new TextConsole(bus, TextReader.Null, writer))
+                {
+                }
+
+                bus.Send(new OutputMessage("one"));
+
+                sb.ToString().Should().BeEmpty();
+            }
+        }
     }
 }