solana/sdk/program/src/sysvar/rent.rs

//! This account contains the current cluster rent
//!
pub use crate::rent::Rent;

use crate::{account::Account, sysvar::Sysvar};

crate::declare_sysvar_id!("SysvarRent111111111111111111111111111111111", Rent);

impl Sysvar for Rent {}

pub fn create_account(lamports: u64, rent: &Rent) -> Account {
    rent.create_account(lamports)
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_rent_create_account() {
        let lamports = 42;
        let account = create_account(lamports, &Rent::default());
        let rent = Rent::from_account(&account).unwrap();
        assert_eq!(rent, Rent::default());
    }
}