使用.NET Core和xUnit同时针对多个框架的单元测试代码

我对.NET的核心部分图书馆哪些目标net45和netstandard1.6，我想单元测试它们。我这样做了dotnet new -t xunittest，然后创建了一个新的测试项目，目标netcoreapp1.0是仅测试.NET Core代码。

我还尝试将其编译为目标，net45但随后在测试发现时遇到了一系列错误。我的问题是

有没有一种方法可以用一个测试项目来测试针对这两个（可能以后）框架的代码，或者我应该为我所针对的每个框架创建一个测试项目？

编辑：这是我project.json和我收到的消息：

{
  "version": "1.0.0-*",
  "buildOptions": {
    "debugType": "portable"
  },
  "dependencies": {
    "xunit": "2.1.0"
  },
  "testRunner": "xunit",
  "frameworks": {
    "net45": {
      "frameworkAssemblies": {
        "System.Runtime": "4.0.0.0"
      }
    },
    "netcoreapp1.0": {
      "dependencies": {
        "Microsoft.NETCore.App": {
          "type": "platform",
          "version": "1.0.0"
        },
        "System.Runtime.Serialization.Primitives": "4.1.1",
        "dotnet-test-xunit": "2.2.0-preview2-build1029"
      },
      "imports": [
        "dotnet5.4",
        "portable-net451+win8"
      ]
    }
  }
}

这些是项目编译后出现的错误：

dotnet-test Error: 0 : [ReportingChannel]: Waiting for message failed System.IO.IOException: Unable to read data om the transport connection: An established connection was aborted by the software in your host machine. ---> stem.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   --- End of inner exception stack trace ---
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   at System.IO.Stream.ReadByte()
   at System.IO.BinaryReader.ReadByte()
   at System.IO.BinaryReader.Read7BitEncodedInt()
   at System.IO.BinaryReader.ReadString()
   at Microsoft.DotNet.Tools.Test.ReportingChannel.ReadMessages()
>dotnet-test Error: 0 : Unhandled Exception: System.IO.IOException: Unable to read data from the transport nnection: An established connection was aborted by the software in your host machine. ---> stem.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine
   at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   --- End of inner exception stack trace ---
   at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
   at System.IO.Stream.ReadByte()
   at System.IO.BinaryReader.ReadByte()
   at System.IO.BinaryReader.Read7BitEncodedInt()
   at System.IO.BinaryReader.ReadString()
   at Microsoft.DotNet.Tools.Test.ReportingChannel.ReadMessages()
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object ate)
[ReportingChannel]: Error sending System.IO.IOException: Unable to write data to the transport connection: Cannot cess a disposed object.
Object name: 'System.Net.Sockets.Socket'.. ---> System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Net.Sockets.Socket'.
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, cketError& errorCode)
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   --- End of inner exception stack trace ---
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   at System.IO.BinaryWriter.Write7BitEncodedInt(Int32 value)
   at System.IO.BinaryWriter.Write(String value)
   at Microsoft.DotNet.Tools.Test.ReportingChannel.Send(Message message)
dotnet-test Error: 0 : System.IO.IOException: Unable to write data to the transport connection: Cannot access a sposed object.
Object name: 'System.Net.Sockets.Socket'.. ---> System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'System.Net.Sockets.Socket'.
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, cketError& errorCode)
   at System.Net.Sockets.Socket.Send(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   --- End of inner exception stack trace ---
   at System.Net.Sockets.NetworkStream.Write(Byte[] buffer, Int32 offset, Int32 size)
   at System.IO.BinaryWriter.Write7BitEncodedInt(Int32 value)
   at System.IO.BinaryWriter.Write(String value)
   at Microsoft.DotNet.Tools.Test.ReportingChannel.Send(Message message)
   at Microsoft.DotNet.Tools.Test.ReportingChannel.SendError(String error)
   at Microsoft.DotNet.Tools.Test.ReportingChannel.SendError(Exception ex)
   at Microsoft.DotNet.Tools.Test.DesignTimeRunner.HandleDesignTimeMessages(ProjectContext projectContext, tnetTestParams dotnetTestParams)
   at Microsoft.DotNet.Tools.Test.DesignTimeRunner.DoRunTests(ProjectContext projectContext, DotnetTestParams tnetTestParams)
   at Microsoft.DotNet.Tools.Test.BaseDotnetTestRunner.RunTests(ProjectContext projectContext, DotnetTestParams tnetTestParams, BuildWorkspace workspace)
   at Microsoft.DotNet.Tools.Test.TestCommand.DoRun(String[] args)

并最终完成这一行

========== Discover test finished: 0 found (0:00:03.0417342) ==========

尽管我知道我已经进行了一项测试（至少到目前为止）。

但是，如果我删除net 45引用，所有的工作都像魅惑，这就是我的工作project.json：

{
   "version": "1.0.0-*",
   "buildOptions": {
      "debugType": "portable"
   },
   "dependencies": {
      "System.Runtime.Serialization.Primitives": "4.1.1",
      "xunit": "2.1.0",
      "dotnet-test-xunit": "2.2.0-preview2-build1029"
   },
   "testRunner": "xunit",
   "frameworks": {
      "netcoreapp1.0": {
         "dependencies": {
            "Microsoft.NETCore.App": {
               "type": "platform",
               "version": "1.0.0"
             }
         },
         "imports": [
         "dotnet5.4",
         "portable-net451+win8"
         ]
      }
   }
}