fix test hangs (#61)

src/dotnet-repl.Tests/Automation/NotebookAutomationTests.cs

@@ -58,7 +58,7 @@ public async Task When_an_ipynb_is_run_and_no_error_is_produced_then_the_exit_co
     }
 
     [Fact]
-    public async Task When_an_ipynb_is_run_and_an_error_is_produced_from_a_cell_then_the_exit_code_is_1()
+    public async Task When_an_ipynb_is_run_and_an_error_is_produced_from_a_cell_then_the_exit_code_is_2()
     {
         var result = await _parser.InvokeAsync($"--notebook \"{_directory}/fail.ipynb\" --exit-after-run", console);
 

src/dotnet-repl.Tests/ReplInteractionTests.cs

@@ -4,12 +4,22 @@
 using Microsoft.DotNet.Interactive;
 using Microsoft.Extensions.DependencyInjection;
 using Pocket;
+using Pocket.For.Xunit;
 using Spectre.Console;
+using Xunit;
 using Xunit.Abstractions;
 using CompositeDisposable = System.Reactive.Disposables.CompositeDisposable;
 
 namespace dotnet_repl.Tests;
 
+[CollectionDefinition("Do not parallelize", DisableParallelization = true)]
+public class SerialTestCollectionDefinition 
+{
+
+}
+
+[LogToPocketLogger(@"c:\temp\dotnet-repl.test.log")]
+[Xunit.Collection("Do not parallelize")]
 public abstract class ReplInteractionTests : IDisposable
 {
     private readonly CompositeDisposable _disposables;

src/dotnet-repl.Tests/dotnet-repl.Tests.csproj

@@ -3,7 +3,6 @@
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
     <RootNamespace>dotnet_repl.Tests</RootNamespace>
-
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 

src/dotnet-repl/Repl.cs

@@ -95,11 +95,11 @@ public Repl(
 
     private LineEditorServiceProvider? LineEditorProvider { get; }
 
-    public void Start()
+    public async Task Start()
     {
-        var ready = ReadyForInput.FirstAsync();
-        Task.Run(() => RunAsync(_ => { }));
-        ready.FirstAsync().Wait();
+        var ready = ReadyForInput.Replay();
+        var _ = Task.Run(() => RunAsync(_ => { }));
+        await ready.FirstAsync();
     }
 
     public async Task RunAsync(
@@ -144,14 +144,16 @@ public async Task RunAsync(
 
             if (await result.KernelEvents.LastAsync() is CommandFailed failed)
             {
-                setExitCode(1);
+                setExitCode(2);
             }
 
             if (exitAfterRun && queuedSubmissions.Count == 0)
             {
                 break;
             }
         }
+
+        _readyForInput.OnCompleted();
     }
 
     private void SetTheme()