llm 1.3.8

A Rust library unifying multiple LLM backends.
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
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
138
139
140
141
142
143
144
145
146

use super::*;
use crate::chat::{ChatMessage, ImageMime};
use crate::error::LLMError;
use crate::{FunctionCall, ToolCall};

fn tool_call(id: &str, name: &str, arguments: &str) -> ToolCall {
    ToolCall {
        id: id.to_string(),
        call_type: "function".to_string(),
        function: FunctionCall {
            name: name.to_string(),
            arguments: arguments.to_string(),
        },
    }
}

#[test]
fn build_input_items_maps_text_message() {
    let message = ChatMessage::user().content("Hello").build();
    let items = build_input_items(&[message]).unwrap();

    assert_eq!(items.len(), 1);
    match &items[0] {
        ResponsesInputItem::Message(msg) => {
            assert_eq!(msg.role, "user");
            assert_eq!(msg.content.len(), 1);
            match &msg.content[0] {
                ResponsesInputContent::Text { text } => assert_eq!(text, "Hello"),
                _ => panic!("expected text content"),
            }
        }
        _ => panic!("expected message item"),
    }
}

#[test]
fn build_input_items_maps_assistant_text_message() {
    let message = ChatMessage::assistant().content("Hi").build();
    let items = build_input_items(&[message]).unwrap();

    assert_eq!(items.len(), 1);
    match &items[0] {
        ResponsesInputItem::Message(msg) => {
            assert_eq!(msg.role, "assistant");
            assert_eq!(msg.content.len(), 1);
            match &msg.content[0] {
                ResponsesInputContent::OutputText { text } => assert_eq!(text, "Hi"),
                _ => panic!("expected output_text content"),
            }
        }
        _ => panic!("expected message item"),
    }
}

#[test]
fn build_input_items_maps_image_url_with_text() {
    let message = ChatMessage::user()
        .content("Look")
        .image_url("https://example.com/img.png")
        .build();
    let items = build_input_items(&[message]).unwrap();

    assert_eq!(items.len(), 1);
    match &items[0] {
        ResponsesInputItem::Message(msg) => {
            assert_eq!(msg.content.len(), 2);
            assert!(matches!(msg.content[0], ResponsesInputContent::Text { .. }));
            match &msg.content[1] {
                ResponsesInputContent::Image { image_url } => {
                    assert_eq!(image_url, "https://example.com/img.png");
                }
                _ => panic!("expected image content"),
            }
        }
        _ => panic!("expected message item"),
    }
}

#[test]
fn build_input_items_maps_inline_image() {
    let message = ChatMessage::user()
        .content("Inline")
        .image(ImageMime::PNG, vec![1, 2, 3])
        .build();
    let items = build_input_items(&[message]).unwrap();

    match &items[0] {
        ResponsesInputItem::Message(msg) => match &msg.content[1] {
            ResponsesInputContent::Image { image_url } => {
                assert!(image_url.starts_with("data:image/png;base64,"));
            }
            _ => panic!("expected image content"),
        },
        _ => panic!("expected message item"),
    }
}

#[test]
fn build_input_items_rejects_assistant_image() {
    let message = ChatMessage::assistant()
        .content("Look")
        .image_url("https://example.com/img.png")
        .build();
    let err = build_input_items(&[message]).unwrap_err();

    assert!(matches!(err, LLMError::InvalidRequest(_)));
}

#[test]
fn build_input_items_maps_tool_use_and_result() {
    let call = tool_call("call_1", "get_weather", "{\"city\":\"Paris\"}");
    let use_msg = ChatMessage::assistant()
        .tool_use(vec![call.clone()])
        .build();
    let result_call = tool_call("call_1", "get_weather", "{\"temp\":25}");
    let result_msg = ChatMessage::assistant()
        .tool_result(vec![result_call])
        .build();

    let items = build_input_items(&[use_msg, result_msg]).unwrap();

    assert_eq!(items.len(), 2);
    match &items[0] {
        ResponsesInputItem::FunctionCall(call_item) => {
            assert_eq!(call_item.call_id, "call_1");
            assert_eq!(call_item.name, "get_weather");
            assert_eq!(call_item.arguments, "{\"city\":\"Paris\"}");
        }
        _ => panic!("expected function_call item"),
    }
    match &items[1] {
        ResponsesInputItem::FunctionCallOutput(output) => {
            assert_eq!(output.call_id, "call_1");
            assert_eq!(output.output, "{\"temp\":25}");
        }
        _ => panic!("expected function_call_output item"),
    }
}

#[test]
fn build_input_items_rejects_pdf() {
    let message = ChatMessage::user().content("doc").pdf(vec![1, 2]).build();
    let err = build_input_items(&[message]).unwrap_err();

    assert!(matches!(err, LLMError::InvalidRequest(_)));
}