batch_mode_batch_schema/
message_role.rs

1// ---------------- [ File: src/message_role.rs ]
2crate::ix!();
3
4#[derive(Debug, Clone, PartialEq, Eq, Hash)]
5pub enum MessageRole {
6    Assistant,
7    User,
8    System,
9    Unknown(String),
10}
11
12impl<'de> Deserialize<'de> for MessageRole {
13    fn deserialize<D>(deserializer: D) -> Result<MessageRole, D::Error>
14    where
15        D: serde::Deserializer<'de>,
16    {
17        let s = String::deserialize(deserializer)?;
18        match s.as_str() {
19            "assistant" => Ok(MessageRole::Assistant),
20            "user" => Ok(MessageRole::User),
21            "system" => Ok(MessageRole::System),
22            other => Ok(MessageRole::Unknown(other.to_string())),
23        }
24    }
25}
26
27impl Serialize for MessageRole {
28    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
29    where
30        S: serde::Serializer,
31    {
32        let s = match self {
33            MessageRole::Assistant => "assistant",
34            MessageRole::User => "user",
35            MessageRole::System => "system",
36            MessageRole::Unknown(other) => other.as_str(),
37        };
38        serializer.serialize_str(s)
39    }
40}
41
42#[cfg(test)]
43mod tests {
44    use super::*;
45    use serde_json::json;
46
47    // Test suite for MessageRole
48    #[test]
49    fn test_message_role_deserialization() {
50        // Known roles
51        let roles = vec!["assistant", "user", "system"];
52        let expected_roles = vec![
53            MessageRole::Assistant,
54            MessageRole::User,
55            MessageRole::System,
56        ];
57
58        for (role_str, expected_role) in roles.iter().zip(expected_roles.iter()) {
59            let json = format!("\"{}\"", role_str);
60            let role: MessageRole = serde_json::from_str(&json).unwrap();
61            assert_eq!(&role, expected_role);
62        }
63
64        // Unknown role
65        let json = "\"unknown_role\"";
66        let role: MessageRole = serde_json::from_str(json).unwrap();
67        assert_eq!(role, MessageRole::Unknown("unknown_role".to_string()));
68
69        // Empty string as role
70        let json = "\"\"";
71        let role: MessageRole = serde_json::from_str(json).unwrap();
72        assert_eq!(role, MessageRole::Unknown("".to_string()));
73
74        // Invalid role (non-string)
75        let json = "123";
76        let result: Result<MessageRole, _> = serde_json::from_str(json);
77        assert!(result.is_err());
78
79        // Null role
80        let json = "null";
81        let result: Result<MessageRole, _> = serde_json::from_str(json);
82        assert!(result.is_err());
83    }
84}
batch_mode_batch_schema/message_role.rs

batch_mode_batch_schema/
message_role.rs
