runtime/flutter_runner/meta/flutter_runner_unittests.cmx

{
    "program": {
        "binary": "test/flutter_runner_unittests"
    },
    "sandbox": {
        "services": [
            "fuchsia.fonts.Provider",
            "fuchsia.sys.Environment",
            "fuchsia.sys.Loader"
        ]
    }
}