json-eval-rs 0.0.89

High-performance JSON Logic evaluator with schema validation and dependency tracking. Built on blazing-fast Rust engine.
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

use json_eval_rs::RLogic;
use serde_json::json;

#[test]
fn test_sum_without_threshold() {
    let mut engine = RLogic::new();
    let logic = json!({"SUM": [[1, 2, 3, 4, 5]]});
    let compiled = engine.compile(&logic).unwrap();
    let result = engine.run(&compiled, &json!({})).unwrap();
    assert_eq!(result, json!(15)); // Float result
}

#[test]
fn test_sum_with_threshold() {
    let mut engine = RLogic::new();
    // threshold = 2 means sum indices 0, 1, 2 (first 3 elements)
    let logic = json!({"SUM": [[1, 2, 3, 4, 5], null, 2]});
    let compiled = engine.compile(&logic).unwrap();
    let result = engine.run(&compiled, &json!({})).unwrap();
    assert_eq!(result, json!(6)); // 1 + 2 + 3 = 6
}

#[test]
fn test_sum_with_field_and_threshold() {
    let mut engine = RLogic::new();
    // Pass the table as data, not inline in the logic
    let data = json!({
        "table": [
            {"value": 10},
            {"value": 20},
            {"value": 30},
            {"value": 40},
            {"value": 50}
        ]
    });
    let logic = json!({"SUM": [{"var": "table"}, "value", 2]});
    let compiled = engine.compile(&logic).unwrap();
    let result = engine.run(&compiled, &data).unwrap();
    assert_eq!(result, json!(60)); // 10 + 20 + 30 = 60
}

#[test]
fn test_sum_with_threshold_zero() {
    let mut engine = RLogic::new();
    // threshold = 0 means sum only index 0 (first element)
    let logic = json!({"SUM": [[1, 2, 3, 4, 5], null, 0]});
    let compiled = engine.compile(&logic).unwrap();
    let result = engine.run(&compiled, &json!({})).unwrap();
    assert_eq!(result, json!(1));
}

#[test]
fn test_sum_with_threshold_larger_than_array() {
    let mut engine = RLogic::new();
    let logic = json!({"SUM": [[1, 2, 3], null, 10]});
    let compiled = engine.compile(&logic).unwrap();
    let result = engine.run(&compiled, &json!({})).unwrap();
    assert_eq!(result, json!(6)); // Sums all elements since threshold > array length
}

#[test]
fn test_sum_with_negative_threshold() {
    let mut engine = RLogic::new();
    // negative threshold means no limit (sum all)
    let logic = json!({"SUM": [[1, 2, 3, 4, 5], null, -1]});
    let compiled = engine.compile(&logic).unwrap();
    let result = engine.run(&compiled, &json!({})).unwrap();
    assert_eq!(result, json!(15));
}