aspnetcore/eng/targets/FunctionalTestWithAssets.targets

<Project>

  <ItemGroup>
    <ProjectReference Include="@(FunctionalTestAssetProjectReference)" ReferenceOutputAssembly="false" />
  </ItemGroup>

  <Target Name="CollectTestAssetPayload" BeforeTargets="GetCopyToOutputDirectoryItems" >
    <MSBuild Targets="CollectFunctionalTestPayload"
             BuildInParallel="true"
             SkipNonexistentTargets="true"
             Projects="%(FunctionalTestAssetProjectReference.Identity)"
             RebaseOutputs="True">
      <Output TaskParameter="TargetOutputs" ItemName="DependencyPayload" />
    </MSBuild>

    <ItemGroup>
      <ContentWithTargetPath
        Include="@(DependencyPayload)"
        Condition="'@(DependencyPayload->Count())' != '0'">
        <TargetPath>%(DependencyPayload.RelativePath)</TargetPath>
        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
      </ContentWithTargetPath>
    </ItemGroup>
  </Target>

</Project>