quanttide_devops/contract/
error.rs

1use std::fmt;
2use std::io;
3
4/// 契约操作错误。
5#[derive(Debug)]
6pub enum ContractError {
7    /// 配置文件 I/O 错误。
8    Io(io::Error),
9    /// YAML 解析错误。
10    Parse(String),
11    /// 配置文件不存在。
12    NotFound,
13}
14
15impl fmt::Display for ContractError {
16    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
17        match self {
18            Self::Io(e) => write!(f, "读取契约文件失败: {}", e),
19            Self::Parse(msg) => write!(f, "契约 YAML 解析失败: {}", msg),
20            Self::NotFound => write!(f, "契约文件不存在"),
21        }
22    }
23}
24
25impl std::error::Error for ContractError {
26    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
27        match self {
28            Self::Io(e) => Some(e),
29            _ => None,
30        }
31    }
32}
33
34impl From<io::Error> for ContractError {
35    fn from(e: io::Error) -> Self {
36        Self::Io(e)
37    }
38}
39
40#[cfg(test)]
41mod tests {
42    use std::error::Error;
43    use super::*;
44
45    #[test]
46    fn test_display_io() {
47        let err = ContractError::Io(std::io::Error::new(std::io::ErrorKind::NotFound, "file not found"));
48        let msg = err.to_string();
49        assert!(msg.contains("读取契约文件失败"));
50    }
51
52    #[test]
53    fn test_display_parse() {
54        let err = ContractError::Parse("syntax error".into());
55        assert!(err.to_string().contains("YAML 解析失败"));
56    }
57
58    #[test]
59    fn test_display_not_found() {
60        let err = ContractError::NotFound;
61        assert!(err.to_string().contains("契约文件不存在"));
62    }
63
64    #[test]
65    fn test_source_io() {
66        let inner = std::io::Error::new(std::io::ErrorKind::NotFound, "test");
67        let err = ContractError::Io(inner);
68        assert!(err.source().is_some());
69    }
70
71    #[test]
72    fn test_source_other() {
73        assert!(ContractError::NotFound.source().is_none());
74        assert!(ContractError::Parse("x".into()).source().is_none());
75    }
76
77    #[test]
78    fn test_from_io() {
79        let inner = std::io::Error::new(std::io::ErrorKind::PermissionDenied, "denied");
80        let err: ContractError = inner.into();
81        assert!(matches!(err, ContractError::Io(_)));
82    }
83}
quanttide_devops/contract/error.rs

quanttide_devops/contract/
error.rs
