61 lines
1.7 KiB
Rust
61 lines
1.7 KiB
Rust
use {
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crate::{
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account::{AccountSharedData, ReadableAccount},
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account_utils::StateMut,
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hash::Hash,
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nonce::{state::Versions, State},
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},
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std::cell::RefCell,
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};
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pub fn create_account(lamports: u64) -> RefCell<AccountSharedData> {
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RefCell::new(
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AccountSharedData::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: &AccountSharedData, 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 lamports_per_signature_of(account: &AccountSharedData) -> Option<u64> {
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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.lamports_per_signature),
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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::*, 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 = AccountSharedData::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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