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//! Kani proofs for Regex contract types.
#[cfg(feature = "regex")]
use elicitation::{
RegexCaseInsensitive, RegexMultiline, RegexSetNonEmpty, RegexSetValid, RegexValid,
};
// ============================================================================
// Regex Contract Proofs - Wrapper Logic Only
// ============================================================================
//
// These proofs verify ONLY the wrapper logic, not regex compilation.
// We trust the regex crate's correctness and verify our contract enforcement.
#[cfg(feature = "regex")]
#[kani::proof]
fn verify_regex_valid_wrapper() {
// Test wrapper logic: new() returns Result with correct variants
let result = RegexValid::new(r"test_pattern");
// Verify Result type behavior
match result {
Ok(_valid) => {
// If Ok, wrapper successfully constructed
// Cannot access internal Regex in kani mode (PhantomData)
}
Err(e) => {
// If Err, correct error variant returned
assert!(matches!(e, elicitation::ValidationError::RegexInvalid));
}
}
}
#[cfg(feature = "regex")]
#[kani::proof]
fn verify_regex_set_valid_wrapper() {
// Test wrapper logic for set
let result = RegexSetValid::new(&[r"pattern1", r"pattern2"]);
match result {
Ok(_set) => {
// Wrapper constructed successfully
}
Err(e) => {
assert!(matches!(e, elicitation::ValidationError::RegexInvalid));
}
}
}
#[cfg(feature = "regex")]
#[kani::proof]
fn verify_regex_case_insensitive_wrapper() {
// Test wrapper construction
let result = RegexCaseInsensitive::new(r"test");
match result {
Ok(_re) => {
// Case-insensitive wrapper constructed
}
Err(e) => {
assert!(matches!(e, elicitation::ValidationError::RegexInvalid));
}
}
}
#[cfg(feature = "regex")]
#[kani::proof]
fn verify_regex_multiline_wrapper() {
// Test wrapper construction
let result = RegexMultiline::new(r"^test$");
match result {
Ok(_re) => {
// Multiline wrapper constructed
}
Err(e) => {
assert!(matches!(e, elicitation::ValidationError::RegexInvalid));
}
}
}
#[cfg(feature = "regex")]
#[kani::proof]
fn verify_regex_set_non_empty_wrapper() {
// Test non-empty constraint
let single_result = RegexSetNonEmpty::new(&[r"pattern"]);
match single_result {
Ok(_set) => {
// Non-empty set constructed
}
Err(e) => {
// Could fail on regex invalid OR empty collection
assert!(
matches!(e, elicitation::ValidationError::RegexInvalid)
|| matches!(e, elicitation::ValidationError::EmptyCollection)
);
}
}
// Test empty set - must return EmptyCollection error
let empty_result = RegexSetNonEmpty::new::<&[&str], _>(&[]);
assert!(empty_result.is_err(), "Empty set must be rejected");
if let Err(e) = empty_result {
assert!(matches!(e, elicitation::ValidationError::EmptyCollection));
}
}