bashrs 6.66.0

Rust-to-Shell transpiler for deterministic bootstrap scripts
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use super::*;
use tempfile::TempDir;

// =========================================================================
// EXTREME TDD Tests for Signature Verification (#108)
// =========================================================================

#[test]
fn test_SIGNATURE_108_keyring_create() {
    let keyring = Keyring::new();
    assert!(keyring.is_empty());
    assert!(!keyring.is_tofu_enabled());
}

#[test]
fn test_SIGNATURE_108_keyring_add_key() {
    let mut keyring = Keyring::new();
    let key = TrustedKey::new("test-key", [1u8; 32]);

    keyring.add_key(key).unwrap();
    assert_eq!(keyring.len(), 1);
    assert!(keyring.get_key("test-key").is_some());
}

#[test]
fn test_SIGNATURE_108_keyring_duplicate_key_fails() {
    let mut keyring = Keyring::new();
    let key1 = TrustedKey::new("test-key", [1u8; 32]);
    let key2 = TrustedKey::new("test-key", [2u8; 32]);

    keyring.add_key(key1).unwrap();
    let result = keyring.add_key(key2);
    assert!(result.is_err());
}

#[test]
fn test_SIGNATURE_108_keyring_remove_key() {
    let mut keyring = Keyring::new();
    let key = TrustedKey::new("test-key", [1u8; 32]);

    keyring.add_key(key).unwrap();
    assert!(keyring.remove_key("test-key").unwrap());
    assert!(keyring.is_empty());
}

#[test]
fn test_SIGNATURE_108_tofu_first_use() {
    let mut keyring = Keyring::new();
    keyring.enable_tofu();

    let result = keyring.trust_on_first_use("new-key", [1u8; 32]).unwrap();
    assert_eq!(result, TrustDecision::NewlyTrusted);

    // Second time should be AlreadyTrusted
    let result = keyring.trust_on_first_use("new-key", [1u8; 32]).unwrap();
    assert_eq!(result, TrustDecision::AlreadyTrusted);
}

#[test]
fn test_SIGNATURE_108_tofu_key_changed_error() {
    let mut keyring = Keyring::new();
    keyring.enable_tofu();

    keyring.trust_on_first_use("test-key", [1u8; 32]).unwrap();

    // Different key should fail
    let result = keyring.trust_on_first_use("test-key", [2u8; 32]);
    assert!(result.is_err());
    assert!(result.unwrap_err().to_string().contains("changed"));
}

#[test]
fn test_SIGNATURE_108_tofu_disabled_error() {
    let mut keyring = Keyring::new();
    // TOFU not enabled

    let result = keyring.trust_on_first_use("test-key", [1u8; 32]);
    assert!(result.is_err());
}

#[test]
fn test_SIGNATURE_108_keyring_persistence() {
    let temp_dir = TempDir::new().unwrap();
    let keyring_path = temp_dir.path().join("keyring.json");

    // Create and save
    {
        let mut keyring = Keyring::with_storage(&keyring_path).unwrap();
        keyring.enable_tofu();
        keyring
            .add_key(TrustedKey::new("key-1", [1u8; 32]))
            .unwrap();
        keyring
            .add_key(TrustedKey::new("key-2", [2u8; 32]))
            .unwrap();
    }

    // Load and verify
    {
        let keyring = Keyring::with_storage(&keyring_path).unwrap();
        assert_eq!(keyring.len(), 2);
        assert!(keyring.is_tofu_enabled());
        assert!(keyring.get_key("key-1").is_some());
        assert!(keyring.get_key("key-2").is_some());
    }
}

#[test]
fn test_SIGNATURE_108_sha256_verify() {
    let content = b"Hello, World!";
    let hash = compute_sha256(content);

    assert!(verify_sha256(content, &hash));
    assert!(!verify_sha256(b"Different content", &hash));
}

#[test]
fn test_SIGNATURE_108_signature_verify() {
    let content = b"Test content";
    let content_hash = compute_sha256(content);
    let public_key = [0x42u8; 32];

    let signature = create_test_signature(&content_hash, &public_key);
    assert!(verify_signature(&content_hash, &signature, &public_key));

    // Wrong key should fail
    let wrong_key = [0x43u8; 32];
    assert!(!verify_signature(&content_hash, &signature, &wrong_key));
}

#[test]
fn test_SIGNATURE_108_zero_signature_invalid() {
    let content_hash = [0u8; 32];
    let signature = [0u8; 64];
    let public_key = [1u8; 32];

    assert!(!verify_signature(&content_hash, &signature, &public_key));
}

#[test]
fn test_SIGNATURE_108_key_fingerprint() {
    let key = TrustedKey::new(
        "test",
        [
            0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x00, 0x00, 0x00,
        ],
    );

    assert_eq!(key.fingerprint(), "0102030405060708");
}

#[test]
fn test_SIGNATURE_108_verification_result() {
    let valid = VerificationResult::Valid {
        signer: "test".to_string(),
        content_hash: "abc".to_string(),
    };
    assert!(valid.is_valid());

    let invalid = VerificationResult::Invalid {
        reason: "bad".to_string(),
    };
    assert!(!invalid.is_valid());

    let unsigned = VerificationResult::Unsigned;
    assert!(!unsigned.is_valid());
}