//! Basic tests for APT wrapper

use apt_wrapper::{AptTransaction, init, search_packages};

#[test]
fn test_transaction_creation() {
    let tx = AptTransaction::new().unwrap();
    assert!(tx.is_empty());
    assert_eq!(tx.packages().len(), 0);
}

#[test]
fn test_transaction_add_package() {
    let mut tx = AptTransaction::new().unwrap();
    
    // Try to add a common package (should exist)
    let result = tx.add_package("apt");
    assert!(result.is_ok());
    assert_eq!(tx.packages().len(), 1);
    assert_eq!(tx.packages()[0], "apt");
}

#[test]
fn test_transaction_add_nonexistent_package() {
    let mut tx = AptTransaction::new().unwrap();
    
    // Try to add a package that definitely doesn't exist
    let result = tx.add_package("this-package-definitely-does-not-exist-12345");
    assert!(result.is_err());
    assert!(tx.is_empty());
}

#[test]
fn test_init() {
    // This will fail if APT is not available
    let result = init();
    // We can't assert success since APT might not be available in test environment
    // Just ensure it doesn't panic
    let _ = result;
}

#[test]
fn test_transaction_rollback_tracking() {
    let mut tx = AptTransaction::new().unwrap();
    
    // Add a package
    let result = tx.add_package("apt");
    assert!(result.is_ok());
    
    // Check that changed_packages is initially empty
    assert!(tx.changed_packages().is_empty());
    
    // Note: We don't actually commit in tests to avoid installing packages
    // In real usage, after commit(), changed_packages would contain
    // the packages that were changed (installed/upgraded)
}