61 lines
1.6 KiB
Rust
61 lines
1.6 KiB
Rust
use crate::{
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account::Account,
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account_utils::StateMut,
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fee_calculator::FeeCalculator,
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hash::Hash,
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nonce::{state::Versions, State},
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};
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use std::cell::RefCell;
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pub fn create_account(lamports: u64) -> RefCell<Account> {
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RefCell::new(
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Account::new_data_with_space(
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lamports,
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&Versions::new_current(State::Uninitialized),
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State::size(),
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&crate::system_program::id(),
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)
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.expect("nonce_account"),
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)
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}
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pub fn verify_nonce_account(acc: &Account, hash: &Hash) -> bool {
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if acc.owner != crate::system_program::id() {
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return false;
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}
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match StateMut::<Versions>::state(acc).map(|v| v.convert_to_current()) {
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Ok(State::Initialized(ref data)) => *hash == data.blockhash,
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_ => false,
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}
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}
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pub fn fee_calculator_of(account: &Account) -> Option<FeeCalculator> {
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let state = StateMut::<Versions>::state(account)
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.ok()?
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.convert_to_current();
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match state {
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State::Initialized(data) => Some(data.fee_calculator),
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_ => None,
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::pubkey::Pubkey;
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#[test]
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fn test_verify_bad_account_owner_fails() {
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let program_id = Pubkey::new_unique();
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assert_ne!(program_id, crate::system_program::id());
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let account = Account::new_data_with_space(
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42,
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&Versions::new_current(State::Uninitialized),
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State::size(),
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&program_id,
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)
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.expect("nonce_account");
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assert!(!verify_nonce_account(&account, &Hash::default()));
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}
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}
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