src/lib/fake-clock/examples/go/meta/fake_clock_test.cmx

{
    "facets": {
        "fuchsia.test": {
            "injected-services": {
                "fuchsia.testing.FakeClock": "fuchsia-pkg://fuchsia.com/fake_clock#meta/fake_clock.cmx",
                "fuchsia.testing.FakeClockControl": "fuchsia-pkg://fuchsia.com/fake_clock#meta/fake_clock.cmx"
            }
        }
    },
    "program": {
        "binary": "test/fake_clock_test"
    },
    "sandbox": {
        "services": [
            "fuchsia.testing.FakeClock",
            "fuchsia.testing.FakeClockControl"
        ]
    }
}