amaters_core/
validation.rs

1//! Input validation helpers
2//!
3//! Following SciRS2 patterns for parameter checking.
4
5use crate::error::{AmateRSError, ErrorContext, Result};
6use crate::types::{CipherBlob, Key};
7
8/// Check that a value is positive
9pub fn check_positive(value: usize, name: &str) -> Result<()> {
10    if value > 0 {
11        Ok(())
12    } else {
13        Err(AmateRSError::ValidationError(ErrorContext::new(format!(
14            "{} must be positive, got {}",
15            name, value
16        ))))
17    }
18}
19
20/// Check that ciphertext size is within limits
21pub fn check_ciphertext_size(blob: &CipherBlob) -> Result<()> {
22    if blob.len() <= CipherBlob::MAX_SIZE {
23        Ok(())
24    } else {
25        Err(AmateRSError::ValidationError(ErrorContext::new(format!(
26            "Ciphertext size {} exceeds maximum {}",
27            blob.len(),
28            CipherBlob::MAX_SIZE
29        ))))
30    }
31}
32
33/// Check that key size is within limits
34pub fn check_key_size(key: &Key) -> Result<()> {
35    if key.len() <= Key::MAX_SIZE {
36        Ok(())
37    } else {
38        Err(AmateRSError::ValidationError(ErrorContext::new(format!(
39            "Key size {} exceeds maximum {}",
40            key.len(),
41            Key::MAX_SIZE
42        ))))
43    }
44}
45
46/// Check that a string is not empty
47pub fn check_not_empty(s: &str, name: &str) -> Result<()> {
48    if !s.is_empty() {
49        Ok(())
50    } else {
51        Err(AmateRSError::ValidationError(ErrorContext::new(format!(
52            "{} cannot be empty",
53            name
54        ))))
55    }
56}
57
58#[cfg(test)]
59mod tests {
60    use super::*;
61
62    #[test]
63    fn test_check_positive() {
64        assert!(check_positive(1, "test").is_ok());
65        assert!(check_positive(0, "test").is_err());
66    }
67
68    #[test]
69    fn test_check_ciphertext_size() {
70        let small = CipherBlob::new(vec![1, 2, 3]);
71        assert!(check_ciphertext_size(&small).is_ok());
72    }
73
74    #[test]
75    fn test_check_key_size() {
76        let key = Key::from_str("test");
77        assert!(check_key_size(&key).is_ok());
78    }
79
80    #[test]
81    fn test_check_not_empty() {
82        assert!(check_not_empty("test", "name").is_ok());
83        assert!(check_not_empty("", "name").is_err());
84    }
85}
amaters_core/validation.rs

amaters_core/
validation.rs
