made_core/value_objects/ceremony/
max_transitions.rs

1use serde::{Deserialize, Serialize};
2
3use crate::error::DomainError;
4
5/// Maximum number of transitions one ceremony instance may apply.
6#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Serialize, Deserialize)]
7#[serde(try_from = "u32", into = "u32")]
8pub struct MaxTransitions(u32);
9
10impl MaxTransitions {
11    pub fn new(value: u32) -> Result<Self, DomainError> {
12        if value == 0 {
13            return Err(DomainError::MustBeNonZero {
14                field: "max_transitions",
15            });
16        }
17        Ok(Self(value))
18    }
19
20    #[must_use]
21    pub const fn get(self) -> u32 {
22        self.0
23    }
24}
25
26impl TryFrom<u32> for MaxTransitions {
27    type Error = DomainError;
28
29    fn try_from(value: u32) -> Result<Self, Self::Error> {
30        Self::new(value)
31    }
32}
33
34impl From<MaxTransitions> for u32 {
35    fn from(value: MaxTransitions) -> Self {
36        value.get()
37    }
38}
39
40#[cfg(test)]
41mod tests {
42    use super::*;
43
44    #[test]
45    fn transition_caps_are_positive() {
46        assert_eq!(MaxTransitions::new(7).unwrap().get(), 7);
47        assert!(matches!(
48            MaxTransitions::new(0),
49            Err(DomainError::MustBeNonZero {
50                field: "max_transitions"
51            })
52        ));
53    }
54}

made_core/value_objects/ceremony/max_transitions.rs

made_core/value_objects/ceremony/
max_transitions.rs