bcx_model/
lib.rs

1#![no_std]
2#![doc = "Causal operation model types for BCX."]
3
4mod event;
5mod truth;
6
7pub use event::{
8    AdmissionResult, CauseCapsule, CauseCapsuleParts, CauseKind, EffectResult, OperationAction,
9    RelationshipKind,
10};
11pub use truth::{AssuranceLevel, TruthStatus};
12
13#[cfg(test)]
14mod tests {
15    use super::*;
16    use bcx_core::{Digest, EventId, ValidationError};
17    use bcx_wire::WireLimits;
18
19    fn event(byte: u8) -> Result<EventId, ValidationError> {
20        EventId::new(Digest::new([byte; Digest::LEN]))
21    }
22
23    #[test]
24    fn cause_capsule_rejects_empty_parents() -> Result<(), ValidationError> {
25        assert_eq!(
26            CauseCapsule::new(
27                CauseCapsuleParts {
28                    event_id: event(1)?,
29                    parents: &[],
30                    relationship: RelationshipKind::CausedBy,
31                    cause_kind: CauseKind::ApplicationAction,
32                    action: OperationAction::Execute,
33                    authority: None,
34                    policy_epoch: None,
35                },
36                WireLimits::DEVELOPMENT,
37            ),
38            Err(ValidationError::Empty)
39        );
40        Ok(())
41    }
42
43    #[test]
44    fn cause_capsule_rejects_too_many_parents() -> Result<(), ValidationError> {
45        let parents = [event(2)?, event(3)?];
46        let limits = WireLimits::new(1, 1, 1, 1)?;
47
48        assert_eq!(
49            CauseCapsule::new(
50                CauseCapsuleParts {
51                    event_id: event(1)?,
52                    parents: &parents,
53                    relationship: RelationshipKind::JoinedFrom,
54                    cause_kind: CauseKind::ApplicationAction,
55                    action: OperationAction::Execute,
56                    authority: None,
57                    policy_epoch: None,
58                },
59                limits,
60            ),
61            Err(ValidationError::TooLarge)
62        );
63        Ok(())
64    }
65}
bcx_model/lib.rs

bcx_model/
lib.rs
