Function project_omits_absent_optional_keys

atomic-canonical/src/prov.rs:321–340

()

    #[test]
    fn project_omits_absent_optional_keys() {
        let mut input = sample_input("did:atomic:PERSON");
        input.turn_parent = None;
        input.agent_vendor = None;
        input.started_at = None;
        input.ended_at = None;
        input.used = Vec::new();

        let value = project(&input);
        let activity = node_of_type(&value, "prov:Activity");
        // Omitted, not null.
        assert!(activity.get("turnParent").is_none());
        assert!(activity.get("prov:startedAtTime").is_none());
        assert!(activity.get("prov:endedAtTime").is_none());
        // `used` is omitted when empty (unknown links omitted, never invented).
        assert!(activity.get("used").is_none());

        let agent = node_of_type(&value, "prov:SoftwareAgent");
        assert!(agent.get("vendor").is_none());
    }

    #[test]
    fn project_is_deterministic_over_signing_bytes() {