mash/unittests_manifest.json

{
  "manifest_version":  1,
  "name": "exe:mash_unittests",
  "display_name": "Mash Unittests",
  "capabilities": {
    "required": {
      "*": { "classes": [ "app", "test" ] },
      "mojo:ash": {
        "interfaces": [
          "mus::mojom::AcceleratorRegistrar",
          "ash::mojom::UserWindowController"
        ]
      }
    }
  }
}