swink-agent 0.13.2

Core scaffolding for running LLM-powered agentic loops
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137

//! Tests for `pricing`.
#![cfg(test)]

use super::*;

fn usage(input: u64, output: u64) -> Usage {
    Usage {
        input,
        output,
        ..Usage::default()
    }
}

#[test]
fn model_rates_prices_each_category() {
    let rates = ModelRates {
        input_per_million: 1.0,
        output_per_million: 2.0,
        cache_read_per_million: 0.5,
        cache_write_per_million: 4.0,
    };
    let usage = Usage {
        input: 1_000_000,
        output: 1_000_000,
        cache_read: 1_000_000,
        cache_write: 1_000_000,
        ..Usage::default()
    };
    let cost = rates.cost_for(&usage);
    assert!((cost.input - 1.0).abs() < 1e-9);
    assert!((cost.output - 2.0).abs() < 1e-9);
    assert!((cost.cache_read - 0.5).abs() < 1e-9);
    assert!((cost.cache_write - 4.0).abs() < 1e-9);
    assert!((cost.total - 7.5).abs() < 1e-9);
}

#[test]
fn default_rates_price_to_zero() {
    assert!(
        ModelRates::default()
            .cost_for(&usage(1_000_000, 1_000_000))
            .is_zero()
    );
}

#[test]
fn pricing_table_declines_unknown_model() {
    let table = PricingTable::new().with_model("known", ModelRates::default());
    assert!(table.calculate("unknown", &usage(1, 1)).is_none());
}

#[test]
fn pricing_table_prices_declared_model() {
    let table = PricingTable::new().with_model(
        "local",
        ModelRates {
            input_per_million: 3.0,
            ..ModelRates::default()
        },
    );
    let cost = table.calculate("local", &usage(2_000_000, 0)).unwrap();
    assert!((cost.total - 6.0).abs() < 1e-9);
}

#[test]
fn pricing_table_with_model_replaces_previous_entry() {
    let table = PricingTable::new()
        .with_model(
            "m",
            ModelRates {
                input_per_million: 1.0,
                ..ModelRates::default()
            },
        )
        .with_model(
            "m",
            ModelRates {
                input_per_million: 9.0,
                ..ModelRates::default()
            },
        );
    assert_eq!(table.len(), 1);
    let cost = table.calculate("m", &usage(1_000_000, 0)).unwrap();
    assert!((cost.total - 9.0).abs() < 1e-9);
}

#[test]
fn empty_table_is_empty() {
    let table = PricingTable::new();
    assert!(table.is_empty());
    assert_eq!(table.len(), 0);
    assert_eq!(table.iter().count(), 0);
}

#[test]
fn closures_implement_cost_calculator() {
    let calculator = |model_id: &str, _usage: &Usage| -> Option<Cost> {
        (model_id == "flat").then(|| Cost {
            total: 0.25,
            ..Cost::default()
        })
    };
    assert!((calculator.calculate("flat", &usage(1, 1)).unwrap().total - 0.25).abs() < 1e-9);
    assert!(calculator.calculate("other", &usage(1, 1)).is_none());
}

#[test]
fn pricing_table_deserializes_from_toml_table() {
    let toml = r#"
            ["my-local-llama"]
            input_per_million = 0.10
            output_per_million = 0.40

            ["partial-rates"]
            input_per_million = 1.0
        "#;
    let table: PricingTable = toml::from_str(toml).expect("table should parse");
    assert_eq!(table.len(), 2);

    let cost = table
        .calculate("my-local-llama", &usage(1_000_000, 1_000_000))
        .unwrap();
    assert!((cost.total - 0.50).abs() < 1e-9);

    // Unspecified categories are free, not "inherit from catalog".
    let partial = table.get("partial-rates").unwrap();
    assert!((partial.output_per_million).abs() < 1e-9);
}

#[test]
fn pricing_table_collects_from_iterator() {
    let table: PricingTable = vec![("a".to_string(), ModelRates::default())]
        .into_iter()
        .collect();
    assert_eq!(table.len(), 1);
    assert!(table.get("a").is_some());
}