khive-fold 0.2.0

Cognitive primitives — Fold, Anchor, Objective, Selector
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69

//! Objective error types

use thiserror::Error;

/// Objective function error type
#[derive(Debug, Error)]
pub enum ObjectiveError {
    /// No candidates to select from
    #[error("No candidates available")]
    NoCandidates,

    /// No candidate met the selection criteria
    #[error("No candidate met criteria: {0}")]
    NoMatch(String),

    /// Invalid objective configuration
    #[error("Invalid configuration: {0}")]
    InvalidConfig(String),

    /// Objective not found in registry
    #[error("Objective not found: {0}")]
    NotFound(String),

    /// Scoring error
    #[error("Scoring error: {0}")]
    Scoring(String),

    /// Fold error
    #[error("Fold error: {0}")]
    Fold(#[from] crate::FoldError),
}

/// Objective result type
pub type ObjectiveResult<T> = Result<T, ObjectiveError>;

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_no_candidates_display() {
        let err = ObjectiveError::NoCandidates;
        assert_eq!(err.to_string(), "No candidates available");
    }

    #[test]
    fn test_no_match_display() {
        let err = ObjectiveError::NoMatch("score < 0.5".into());
        assert!(err.to_string().contains("score < 0.5"));
    }

    #[test]
    fn test_invalid_config_display() {
        let err = ObjectiveError::InvalidConfig("missing weight".into());
        assert!(err.to_string().contains("missing weight"));
    }

    #[test]
    fn test_not_found_display() {
        let err = ObjectiveError::NotFound("relevance_v1".into());
        assert!(err.to_string().contains("relevance_v1"));
    }

    #[test]
    fn test_scoring_display() {
        let err = ObjectiveError::Scoring("NaN result".into());
        assert!(err.to_string().contains("NaN result"));
    }
}