// file: crates/ksp-app-wallet-desk/unit_tests/wallet_balance.rs
// version: 1

//! Unit tests for exact Wallet balance presentation.

#[test]
fn lamports_formatting_is_exact_and_uses_nine_fractional_digits() {
    assert_eq!(crate::format_lamports_as_sol(0), "0.000000000");
    assert_eq!(crate::format_lamports_as_sol(1), "0.000000001");
    assert_eq!(crate::format_lamports_as_sol(1_000_000_000), "1.000000000");
    assert_eq!(crate::format_lamports_as_sol(1_234_567_890), "1.234567890");
    assert_eq!(crate::format_lamports_as_sol(u64::MAX), "18446744073.709551615");
}