UnityPackages/Assets/Template~/Tests/Editor/[company-name].[package-name].Editor.asmdef

{
    "name": "[company-name].[package-name].Editor",
    "references": [
        "UnityEngine.TestRunner",
        "UnityEditor.TestRunner"
    ],
  "includePlatforms": [
    "Editor"
  ],
  "excludePlatforms": []
}