VSTS task error when run integration tests in .Net Core 2.1

Question

I am running API e2e tests in VSTS 2017 CD tasks and getting below error at the task (vsTest - End2End Tests)

Unable to find d:\a\r1\a\Project\e2e\bin\Release\netcoreapp2.1\testhost.dll. Please publish your test project and retry.
Unable to find d:\a\r1\a\Project\e2e\obj\Release\netcoreapp2.1\Project.EndToEnd.Integration.Test.deps.json. Make sure test project has a nuget reference of package "Microsoft.NET.Test.Sdk". 

I have below nuget packages in my e2e prject.

<PackageReference Include="FluentAssertions" Version="5.6.0" />
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
<PackageReference Include="Microsoft.TestPlatform.TestHost" Version="15.9.0" />
<PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
<PackageReference Include="TestStack.BDDfy" Version="4.3.2" />
<PackageReference Include="TestStack.BDDfy.Xunit" Version="1.0.0" />
<PackageReference Include="xunit" Version="2.4.1" />
<PackageReference Include="xunit.core" Version="2.4.1" />
<PackageReference Include="xunit.extensibility.core" Version="2.4.1" />
<PackageReference Include="xunit.extensibility.execution" Version="2.4.1" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">

My project target framework is .Net Core 2.1

As per this I believe everything in place. Not sure what is missing?

VSTS Task

Build.yaml (section)

- task: CopyFiles@2
      displayName: "Copy Files to: $(Build.ArtifactStagingDirectory)"
      inputs: 
        contents: "D:/a/1/s/src/xxx.EndToEnd.Integration.Tests/**"
        targetFolder: $(Build.ArtifactStagingDirectory)

- task: DotNetCoreCLI@2
     displayName: "dotnet e2e tests"
     inputs: 
       command: publish
       projects: $(Build.ArtifactStagingDirectory)/src/xxx.EndToEnd.Integration.Tests/xxx.EndToEnd.Integration.Tests.csproj
       arguments : --no-build

    - task: PublishBuildArtifacts@1
      displayName: "Publish End-to-End Tests"
      inputs: 
        artifactName: e2e
        artifactType: container
        pathToPublish: $(Build.ArtifactStagingDirectory)/src/xxx.EndToEnd.Integration.Tests

Answer 1

There are two ways you can handle this.

1. Publish your project. This makes sure that the test dll and all the dependencies get dropped in a folder. You can give path to this published location and run your test.

2. You can use the dotnet cli task. If you are using a YAML definition add task as follows:

   - task: DotNetCoreCLI@2
     displayName: 'dotnet test'
     inputs:
       command: test
       projects: '**/*.Tests/*.csproj'
   

Refer: Dotnet CLI task