qubit-function 0.18.2

Functional programming traits and Box/Rc/Arc adapters for Rust, inspired by Java functional interfaces
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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86

// =============================================================================
//    Copyright (c) 2025 - 2026 Haixing Hu.
//
//    SPDX-License-Identifier: Apache-2.0
//
//    Licensed under the Apache License, Version 2.0.
// =============================================================================

//! Unit tests for the predicate module.

use qubit_function::predicates::ArcPredicate;
use qubit_function::predicates::BoxPredicate;
use qubit_function::predicates::RcPredicate;

#[cfg(test)]
mod display_debug_tests {
    use super::ArcPredicate;
    use super::BoxPredicate;
    use super::RcPredicate;

    #[test]
    fn test_box_display_unnamed() {
        let pred = BoxPredicate::new(|x: &i32| *x > 0);
        let display_str = format!("{}", pred);
        assert_eq!(display_str, "BoxPredicate(unnamed)");
    }

    #[test]
    fn test_box_display_named() {
        let pred = BoxPredicate::new_with_name("is_positive", |x: &i32| *x > 0);
        let display_str = format!("{}", pred);
        assert_eq!(display_str, "BoxPredicate(is_positive)");
    }

    #[test]
    fn test_box_debug() {
        let pred = BoxPredicate::new(|x: &i32| *x > 0);
        let debug_str = format!("{:?}", pred);
        assert!(debug_str.contains("BoxPredicate"));
        assert!(debug_str.contains("name"));
    }

    #[test]
    fn test_arc_display_unnamed() {
        let pred = ArcPredicate::new(|x: &i32| *x > 0);
        let display_str = format!("{}", pred);
        assert_eq!(display_str, "ArcPredicate(unnamed)");
    }

    #[test]
    fn test_arc_display_named() {
        let pred = ArcPredicate::new_with_name("is_positive", |x: &i32| *x > 0);
        let display_str = format!("{}", pred);
        assert_eq!(display_str, "ArcPredicate(is_positive)");
    }

    #[test]
    fn test_arc_debug() {
        let pred = ArcPredicate::new(|x: &i32| *x > 0);
        let debug_str = format!("{:?}", pred);
        assert!(debug_str.contains("ArcPredicate"));
        assert!(debug_str.contains("name"));
    }

    #[test]
    fn test_rc_display_unnamed() {
        let pred = RcPredicate::new(|x: &i32| *x > 0);
        let display_str = format!("{}", pred);
        assert_eq!(display_str, "RcPredicate(unnamed)");
    }

    #[test]
    fn test_rc_display_named() {
        let pred = RcPredicate::new_with_name("is_positive", |x: &i32| *x > 0);
        let display_str = format!("{}", pred);
        assert_eq!(display_str, "RcPredicate(is_positive)");
    }

    #[test]
    fn test_rc_debug() {
        let pred = RcPredicate::new(|x: &i32| *x > 0);
        let debug_str = format!("{:?}", pred);
        assert!(debug_str.contains("RcPredicate"));
        assert!(debug_str.contains("name"));
    }
}