NUnit .NET Core running through ReSharper

I am trying to run NUnit tests for a .NET Core 2.0 project in Visual Studio 2017 through ReSharper. I've had the test .proj assembly set both as console application and class library. So it doesn't seem to be the output type. The solution does not discover any unit test and just displays no results with 0 tests run.

Here is my .csproj file for the tests project:

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

  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <AssemblyName>eCorp.WebStore.OrderService.Tests</AssemblyName>
    <RootNamespace>eCorp.WebStore.OrderService.Tests</RootNamespace>
    <ApplicationIcon />
    <OutputType>Exe</OutputType>
    <StartupObject />
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0" />
    <PackageReference Include="NUnit" Version="3.9.0" />
    <PackageReference Include="NUnit3TestAdapter" Version="3.9.0" />
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\..\Core\OrderService.Domain\OrderService.Domain.csproj" />
    <ProjectReference Include="..\..\Core\OrderService.Infrastructure\OrderService.Infrastructure.csproj" />
  </ItemGroup>

</Project>

I found this already: Run NUnit tests in .NET Core

None of the provided solutions seem to work for me.