NUnit 4 needs System.Threading.Tasks.Extensions for net472 tests

[sandrohanea]

If using a net472 project, and NUnit 4, async tests are failing to run if System.Threading.Tasks.Extensions is not installed separately.

Exception:

System.IO.FileNotFoundException : Could not load file or assembly 'System.Threading.Tasks.Extensions, Version=4.2.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified.

at NUnit.Framework.Internal.AwaitAdapter.FromAwaitable(Object awaitable)
at NUnit.Framework.Internal.AsyncToSyncAdapter.Await[TResult](Func`1 invoke)
at NUnit.Framework.Internal.Commands.TestMethodCommand.RunTestMethod(TestExecutionContext context)
at NUnit.Framework.Internal.Commands.TestMethodCommand.Execute(TestExecutionContext context)
at NUnit.Framework.Internal.ContextUtils.<>c__DisplayClass1_0`1.<DoIsolated>b__0(Object _)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at NUnit.Framework.Internal.ContextUtils.DoIsolated(ContextCallback callback, Object state)
at NUnit.Framework.Internal.ContextUtils.DoIsolated[T](Func`1 func)
at NUnit.Framework.Internal.Execution.SimpleWorkItem.PerformWork()

Example csproj:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net472</TargetFramework>
	  <OutputType>Library</OutputType>
	  <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
	  <PlatformTarget>x64</PlatformTarget>
  </PropertyGroup>

  <ItemGroup>
	  <PackageReference Include="NUnit" Version="4.0.1" />
	  <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
  </ItemGroup>

</Project>

Example test:

using NUnit.Framework;
using System;
using System.Threading.Tasks;
namespace NUnitRepro
{
    public class Tests
    {
        [Test]
        public async Task NUnitAsync()
        {
            await Task.Delay(1000);
            Console.WriteLine("Hello World!");
            Assert.Pass("Success");
        }
    }
}

Workaround:
Just manually install:

[manfred-brands]

Thanks for the report.
Yes, NUnit does depend on that.
I see that I forgot to add the dependency to the.nuspec file. I''m used to dotnet doing all that for me.

[sandrohanea]

Yes, I was looking that you added it here: https://github.com/nunit/nunit/blob/v4.0.1/src/NUnitFramework/framework/nunit.framework.csproj but it's not in the nuspec.

Thanks for the great package!

[OsirisTerje]

@sandrohanea Can you please check this package https://www.myget.org/feed/nunit/package/nuget/NUnit/4.1.0-alpha.0.1