You should be able to download all the necessary to run the test through nuget. All the information should be already included in the solution, so it should be an automatic process. .net core SDK must be installed: https://dotnet.microsoft.com/download
These tests runs with .net core, they DO NOT USE UNITY. Unity dedicated tests are found at https://github.com/sebas77/Svelto.ECS.Tests.Unity