Crate uselesskey_core_negative_pem 

PEM-focused negative fixture corruption helpers for test fixtures.

Use corrupt_pem to apply a specific corruption strategy, or corrupt_pem_deterministic to let the variant string choose the strategy deterministically.

Examples

use uselesskey_core_negative_pem::{corrupt_pem, CorruptPem};

let pem = "-----BEGIN RSA PRIVATE KEY-----\nABC=\n-----END RSA PRIVATE KEY-----\n";

// Replace the header with an invalid one
let bad = corrupt_pem(pem, CorruptPem::BadHeader);
assert!(bad.starts_with("-----BEGIN CORRUPTED KEY-----"));

// Inject invalid base64 so decoders reject it
let bad = corrupt_pem(pem, CorruptPem::BadBase64);
assert!(bad.contains("THIS_IS_NOT_BASE64!!!"));

Deterministic corruption picks a strategy from the variant string, producing the same output every time:

use uselesskey_core_negative_pem::corrupt_pem_deterministic;

let pem = "-----BEGIN PUBLIC KEY-----\nABC=\n-----END PUBLIC KEY-----\n";
let a = corrupt_pem_deterministic(pem, "corrupt:test-v1");
let b = corrupt_pem_deterministic(pem, "corrupt:test-v1");
assert_eq!(a, b); // same variant ⇒ same corruption

Enums

CorruptPem

Strategies for corrupting PEM-encoded data.

Functions

corrupt_pem

Apply a specific CorruptPem corruption strategy to the given PEM string.

corrupt_pem_deterministic

Choose a corruption strategy deterministically from variant and apply it to pem.