reth_execution_types/execution_outcome.rs
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use std::collections::HashMap;
use alloy_eips::eip7685::Requests;
use alloy_primitives::{Address, BlockNumber, Bloom, Log, B256, U256};
use reth_primitives::{logs_bloom, Account, Bytecode, Receipts, StorageEntry};
use reth_primitives_traits::{receipt::ReceiptExt, Receipt};
use reth_trie::HashedPostState;
use revm::{
db::{states::BundleState, BundleAccount},
primitives::AccountInfo,
};
use crate::BlockExecutionOutput;
/// Represents a changed account
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct ChangedAccount {
/// The address of the account.
pub address: Address,
/// Account nonce.
pub nonce: u64,
/// Account balance.
pub balance: U256,
}
impl ChangedAccount {
/// Creates a new [`ChangedAccount`] with the given address and 0 balance and nonce.
pub const fn empty(address: Address) -> Self {
Self { address, nonce: 0, balance: U256::ZERO }
}
}
/// Represents the outcome of block execution, including post-execution changes and reverts.
///
/// The `ExecutionOutcome` structure aggregates the state changes over an arbitrary number of
/// blocks, capturing the resulting state, receipts, and requests following the execution.
#[derive(Default, Debug, Clone, PartialEq, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct ExecutionOutcome<T = reth_primitives::Receipt> {
/// Bundle state with reverts.
pub bundle: BundleState,
/// The collection of receipts.
/// Outer vector stores receipts for each block sequentially.
/// The inner vector stores receipts ordered by transaction number.
///
/// If receipt is None it means it is pruned.
pub receipts: Receipts<T>,
/// First block of bundle state.
pub first_block: BlockNumber,
/// The collection of EIP-7685 requests.
/// Outer vector stores requests for each block sequentially.
/// The inner vector stores requests ordered by transaction number.
///
/// A transaction may have zero or more requests, so the length of the inner vector is not
/// guaranteed to be the same as the number of transactions.
pub requests: Vec<Requests>,
}
/// Type used to initialize revms bundle state.
pub type BundleStateInit =
HashMap<Address, (Option<Account>, Option<Account>, HashMap<B256, (U256, U256)>)>;
/// Types used inside `RevertsInit` to initialize revms reverts.
pub type AccountRevertInit = (Option<Option<Account>>, Vec<StorageEntry>);
/// Type used to initialize revms reverts.
pub type RevertsInit = HashMap<BlockNumber, HashMap<Address, AccountRevertInit>>;
impl<T> ExecutionOutcome<T> {
/// Creates a new `ExecutionOutcome`.
///
/// This constructor initializes a new `ExecutionOutcome` instance with the provided
/// bundle state, receipts, first block number, and EIP-7685 requests.
pub const fn new(
bundle: BundleState,
receipts: Receipts<T>,
first_block: BlockNumber,
requests: Vec<Requests>,
) -> Self {
Self { bundle, receipts, first_block, requests }
}
/// Creates a new `ExecutionOutcome` from initialization parameters.
///
/// This constructor initializes a new `ExecutionOutcome` instance using detailed
/// initialization parameters.
pub fn new_init(
state_init: BundleStateInit,
revert_init: RevertsInit,
contracts_init: impl IntoIterator<Item = (B256, Bytecode)>,
receipts: Receipts<T>,
first_block: BlockNumber,
requests: Vec<Requests>,
) -> Self {
// sort reverts by block number
let mut reverts = revert_init.into_iter().collect::<Vec<_>>();
reverts.sort_unstable_by_key(|a| a.0);
// initialize revm bundle
let bundle = BundleState::new(
state_init.into_iter().map(|(address, (original, present, storage))| {
(
address,
original.map(Into::into),
present.map(Into::into),
storage.into_iter().map(|(k, s)| (k.into(), s)).collect(),
)
}),
reverts.into_iter().map(|(_, reverts)| {
// does not needs to be sorted, it is done when taking reverts.
reverts.into_iter().map(|(address, (original, storage))| {
(
address,
original.map(|i| i.map(Into::into)),
storage.into_iter().map(|entry| (entry.key.into(), entry.value)),
)
})
}),
contracts_init.into_iter().map(|(code_hash, bytecode)| (code_hash, bytecode.0)),
);
Self { bundle, receipts, first_block, requests }
}
/// Return revm bundle state.
pub const fn state(&self) -> &BundleState {
&self.bundle
}
/// Returns mutable revm bundle state.
pub fn state_mut(&mut self) -> &mut BundleState {
&mut self.bundle
}
/// Set first block.
pub fn set_first_block(&mut self, first_block: BlockNumber) {
self.first_block = first_block;
}
/// Return iterator over all accounts
pub fn accounts_iter(&self) -> impl Iterator<Item = (Address, Option<&AccountInfo>)> {
self.bundle.state().iter().map(|(a, acc)| (*a, acc.info.as_ref()))
}
/// Return iterator over all [`BundleAccount`]s in the bundle
pub fn bundle_accounts_iter(&self) -> impl Iterator<Item = (Address, &BundleAccount)> {
self.bundle.state().iter().map(|(a, acc)| (*a, acc))
}
/// Get account if account is known.
pub fn account(&self, address: &Address) -> Option<Option<Account>> {
self.bundle.account(address).map(|a| a.info.clone().map(Into::into))
}
/// Get storage if value is known.
///
/// This means that depending on status we can potentially return `U256::ZERO`.
pub fn storage(&self, address: &Address, storage_key: U256) -> Option<U256> {
self.bundle.account(address).and_then(|a| a.storage_slot(storage_key))
}
/// Return bytecode if known.
pub fn bytecode(&self, code_hash: &B256) -> Option<Bytecode> {
self.bundle.bytecode(code_hash).map(Bytecode)
}
/// Returns [`HashedPostState`] for this execution outcome.
/// See [`HashedPostState::from_bundle_state`] for more info.
pub fn hash_state_slow(&self) -> HashedPostState {
HashedPostState::from_bundle_state(&self.bundle.state)
}
/// Transform block number to the index of block.
pub fn block_number_to_index(&self, block_number: BlockNumber) -> Option<usize> {
if self.first_block > block_number {
return None
}
let index = block_number - self.first_block;
if index >= self.receipts.len() as u64 {
return None
}
Some(index as usize)
}
/// Returns the receipt root for all recorded receipts.
/// Note: this function calculated Bloom filters for every receipt and created merkle trees
/// of receipt. This is a expensive operation.
pub fn generic_receipts_root_slow(
&self,
block_number: BlockNumber,
f: impl FnOnce(&[&T]) -> B256,
) -> Option<B256> {
self.receipts.root_slow(self.block_number_to_index(block_number)?, f)
}
/// Returns reference to receipts.
pub const fn receipts(&self) -> &Receipts<T> {
&self.receipts
}
/// Returns mutable reference to receipts.
pub fn receipts_mut(&mut self) -> &mut Receipts<T> {
&mut self.receipts
}
/// Return all block receipts
pub fn receipts_by_block(&self, block_number: BlockNumber) -> &[Option<T>] {
let Some(index) = self.block_number_to_index(block_number) else { return &[] };
&self.receipts[index]
}
/// Is execution outcome empty.
pub fn is_empty(&self) -> bool {
self.len() == 0
}
/// Number of blocks in the execution outcome.
pub fn len(&self) -> usize {
self.receipts.len()
}
/// Return first block of the execution outcome
pub const fn first_block(&self) -> BlockNumber {
self.first_block
}
/// Revert the state to the given block number.
///
/// Returns false if the block number is not in the bundle state.
///
/// # Note
///
/// The provided block number will stay inside the bundle state.
pub fn revert_to(&mut self, block_number: BlockNumber) -> bool {
let Some(index) = self.block_number_to_index(block_number) else { return false };
// +1 is for number of blocks that we have as index is included.
let new_len = index + 1;
let rm_trx: usize = self.len() - new_len;
// remove receipts
self.receipts.truncate(new_len);
// remove requests
self.requests.truncate(new_len);
// Revert last n reverts.
self.bundle.revert(rm_trx);
true
}
/// Splits the block range state at a given block number.
/// Returns two split states ([..at], [at..]).
/// The plain state of the 2nd bundle state will contain extra changes
/// that were made in state transitions belonging to the lower state.
///
/// # Panics
///
/// If the target block number is not included in the state block range.
pub fn split_at(self, at: BlockNumber) -> (Option<Self>, Self)
where
T: Clone,
{
if at == self.first_block {
return (None, self)
}
let (mut lower_state, mut higher_state) = (self.clone(), self);
// Revert lower state to [..at].
lower_state.revert_to(at.checked_sub(1).unwrap());
// Truncate higher state to [at..].
let at_idx = higher_state.block_number_to_index(at).unwrap();
higher_state.receipts = higher_state.receipts.split_off(at_idx).into();
// Ensure that there are enough requests to truncate.
// Sometimes we just have receipts and no requests.
if at_idx < higher_state.requests.len() {
higher_state.requests = higher_state.requests.split_off(at_idx);
}
higher_state.bundle.take_n_reverts(at_idx);
higher_state.first_block = at;
(Some(lower_state), higher_state)
}
/// Extend one state from another
///
/// For state this is very sensitive operation and should be used only when
/// we know that other state was build on top of this one.
/// In most cases this would be true.
pub fn extend(&mut self, other: Self) {
self.bundle.extend(other.bundle);
self.receipts.extend(other.receipts.receipt_vec);
self.requests.extend(other.requests);
}
/// Prepends present the state with the given `BundleState`.
/// It adds changes from the given state but does not override any existing changes.
///
/// Reverts and receipts are not updated.
pub fn prepend_state(&mut self, mut other: BundleState) {
let other_len = other.reverts.len();
// take this bundle
let this_bundle = std::mem::take(&mut self.bundle);
// extend other bundle with this
other.extend(this_bundle);
// discard other reverts
other.take_n_reverts(other_len);
// swap bundles
std::mem::swap(&mut self.bundle, &mut other)
}
/// Create a new instance with updated receipts.
pub fn with_receipts(mut self, receipts: Receipts<T>) -> Self {
self.receipts = receipts;
self
}
/// Create a new instance with updated requests.
pub fn with_requests(mut self, requests: Vec<Requests>) -> Self {
self.requests = requests;
self
}
/// Returns an iterator over all changed accounts from the `ExecutionOutcome`.
///
/// This method filters the accounts to return only those that have undergone changes
/// and maps them into `ChangedAccount` instances, which include the address, nonce, and
/// balance.
pub fn changed_accounts(&self) -> impl Iterator<Item = ChangedAccount> + '_ {
self.accounts_iter().filter_map(|(addr, acc)| acc.map(|acc| (addr, acc))).map(
|(address, acc)| ChangedAccount { address, nonce: acc.nonce, balance: acc.balance },
)
}
}
impl<T: Receipt> ExecutionOutcome<T> {
/// Returns an iterator over all block logs.
pub fn logs(&self, block_number: BlockNumber) -> Option<impl Iterator<Item = &Log>> {
let index = self.block_number_to_index(block_number)?;
Some(self.receipts[index].iter().filter_map(|r| Some(r.as_ref()?.logs().iter())).flatten())
}
/// Return blocks logs bloom
pub fn block_logs_bloom(&self, block_number: BlockNumber) -> Option<Bloom> {
Some(logs_bloom(self.logs(block_number)?))
}
/// Returns the receipt root for all recorded receipts.
/// Note: this function calculated Bloom filters for every receipt and created merkle trees
/// of receipt. This is a expensive operation.
pub fn receipts_root_slow(&self, _block_number: BlockNumber) -> Option<B256>
where
T: ReceiptExt,
{
#[cfg(feature = "optimism")]
panic!("This should not be called in optimism mode. Use `optimism_receipts_root_slow` instead.");
#[cfg(not(feature = "optimism"))]
self.receipts.root_slow(self.block_number_to_index(_block_number)?, T::receipts_root)
}
}
impl<T> From<(BlockExecutionOutput<T>, BlockNumber)> for ExecutionOutcome<T> {
fn from(value: (BlockExecutionOutput<T>, BlockNumber)) -> Self {
Self {
bundle: value.0.state,
receipts: Receipts::from(value.0.receipts),
first_block: value.1,
requests: vec![value.0.requests],
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[cfg(not(feature = "optimism"))]
use alloy_primitives::bytes;
use alloy_primitives::{Address, B256};
use reth_primitives::Receipts;
#[cfg(not(feature = "optimism"))]
use reth_primitives::{LogData, TxType};
#[test]
#[cfg(not(feature = "optimism"))]
fn test_initialisation() {
// Create a new BundleState object with initial data
let bundle = BundleState::new(
vec![(Address::new([2; 20]), None, Some(AccountInfo::default()), HashMap::default())],
vec![vec![(Address::new([2; 20]), None, vec![])]],
vec![],
);
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![vec![Some(reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![],
success: true,
})]],
};
// Create a Requests object with a vector of requests
let requests = vec![Requests::new(vec![bytes!("dead"), bytes!("beef"), bytes!("beebee")])];
// Define the first block number
let first_block = 123;
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let exec_res = ExecutionOutcome {
bundle: bundle.clone(),
receipts: receipts.clone(),
requests: requests.clone(),
first_block,
};
// Assert that creating a new ExecutionOutcome using the constructor matches exec_res
assert_eq!(
ExecutionOutcome::new(bundle, receipts.clone(), first_block, requests.clone()),
exec_res
);
// Create a BundleStateInit object and insert initial data
let mut state_init: BundleStateInit = HashMap::default();
state_init
.insert(Address::new([2; 20]), (None, Some(Account::default()), HashMap::default()));
// Create a HashMap for account reverts and insert initial data
let mut revert_inner: HashMap<Address, AccountRevertInit> = HashMap::default();
revert_inner.insert(Address::new([2; 20]), (None, vec![]));
// Create a RevertsInit object and insert the revert_inner data
let mut revert_init: RevertsInit = HashMap::default();
revert_init.insert(123, revert_inner);
// Assert that creating a new ExecutionOutcome using the new_init method matches
// exec_res
assert_eq!(
ExecutionOutcome::new_init(
state_init,
revert_init,
vec![],
receipts,
first_block,
requests,
),
exec_res
);
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_block_number_to_index() {
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![vec![Some(reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![],
success: true,
})]],
};
// Define the first block number
let first_block = 123;
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let exec_res = ExecutionOutcome {
bundle: Default::default(),
receipts,
requests: vec![],
first_block,
};
// Test before the first block
assert_eq!(exec_res.block_number_to_index(12), None);
// Test after after the first block but index larger than receipts length
assert_eq!(exec_res.block_number_to_index(133), None);
// Test after the first block
assert_eq!(exec_res.block_number_to_index(123), Some(0));
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_get_logs() {
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![vec![Some(reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![Log::<LogData>::default()],
success: true,
})]],
};
// Define the first block number
let first_block = 123;
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let exec_res = ExecutionOutcome {
bundle: Default::default(),
receipts,
requests: vec![],
first_block,
};
// Get logs for block number 123
let logs: Vec<&Log> = exec_res.logs(123).unwrap().collect();
// Assert that the logs match the expected logs
assert_eq!(logs, vec![&Log::<LogData>::default()]);
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_receipts_by_block() {
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![vec![Some(reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![Log::<LogData>::default()],
success: true,
})]],
};
// Define the first block number
let first_block = 123;
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let exec_res = ExecutionOutcome {
bundle: Default::default(), // Default value for bundle
receipts, // Include the created receipts
requests: vec![], // Empty vector for requests
first_block, // Set the first block number
};
// Get receipts for block number 123 and convert the result into a vector
let receipts_by_block: Vec<_> = exec_res.receipts_by_block(123).iter().collect();
// Assert that the receipts for block number 123 match the expected receipts
assert_eq!(
receipts_by_block,
vec![&Some(reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![Log::<LogData>::default()],
success: true,
})]
);
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_receipts_len() {
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![vec![Some(reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![Log::<LogData>::default()],
success: true,
})]],
};
// Create an empty Receipts object
let receipts_empty: Receipts = Receipts { receipt_vec: vec![] };
// Define the first block number
let first_block = 123;
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let exec_res = ExecutionOutcome {
bundle: Default::default(), // Default value for bundle
receipts, // Include the created receipts
requests: vec![], // Empty vector for requests
first_block, // Set the first block number
};
// Assert that the length of receipts in exec_res is 1
assert_eq!(exec_res.len(), 1);
// Assert that exec_res is not empty
assert!(!exec_res.is_empty());
// Create a ExecutionOutcome object with an empty Receipts object
let exec_res_empty_receipts = ExecutionOutcome {
bundle: Default::default(), // Default value for bundle
receipts: receipts_empty, // Include the empty receipts
requests: vec![], // Empty vector for requests
first_block, // Set the first block number
};
// Assert that the length of receipts in exec_res_empty_receipts is 0
assert_eq!(exec_res_empty_receipts.len(), 0);
// Assert that exec_res_empty_receipts is empty
assert!(exec_res_empty_receipts.is_empty());
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_revert_to() {
// Create a random receipt object
let receipt = reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![],
success: true,
};
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![vec![Some(receipt.clone())], vec![Some(receipt.clone())]],
};
// Define the first block number
let first_block = 123;
// Create a request.
let request = bytes!("deadbeef");
// Create a vector of Requests containing the request.
let requests =
vec![Requests::new(vec![request.clone()]), Requests::new(vec![request.clone()])];
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let mut exec_res =
ExecutionOutcome { bundle: Default::default(), receipts, requests, first_block };
// Assert that the revert_to method returns true when reverting to the initial block number.
assert!(exec_res.revert_to(123));
// Assert that the receipts are properly cut after reverting to the initial block number.
assert_eq!(exec_res.receipts, Receipts { receipt_vec: vec![vec![Some(receipt)]] });
// Assert that the requests are properly cut after reverting to the initial block number.
assert_eq!(exec_res.requests, vec![Requests::new(vec![request])]);
// Assert that the revert_to method returns false when attempting to revert to a block
// number greater than the initial block number.
assert!(!exec_res.revert_to(133));
// Assert that the revert_to method returns false when attempting to revert to a block
// number less than the initial block number.
assert!(!exec_res.revert_to(10));
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_extend_execution_outcome() {
// Create a Receipt object with specific attributes.
let receipt = reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![],
success: true,
};
// Create a Receipts object containing the receipt.
let receipts = Receipts { receipt_vec: vec![vec![Some(receipt.clone())]] };
// Create a request.
let request = bytes!("deadbeef");
// Create a vector of Requests containing the request.
let requests = vec![Requests::new(vec![request.clone()])];
// Define the initial block number.
let first_block = 123;
// Create an ExecutionOutcome object.
let mut exec_res =
ExecutionOutcome { bundle: Default::default(), receipts, requests, first_block };
// Extend the ExecutionOutcome object by itself.
exec_res.extend(exec_res.clone());
// Assert the extended ExecutionOutcome matches the expected outcome.
assert_eq!(
exec_res,
ExecutionOutcome {
bundle: Default::default(),
receipts: Receipts {
receipt_vec: vec![vec![Some(receipt.clone())], vec![Some(receipt)]]
},
requests: vec![Requests::new(vec![request.clone()]), Requests::new(vec![request])],
first_block: 123,
}
);
}
#[test]
#[cfg(not(feature = "optimism"))]
fn test_split_at_execution_outcome() {
// Create a random receipt object
let receipt = reth_primitives::Receipt {
tx_type: TxType::Legacy,
cumulative_gas_used: 46913,
logs: vec![],
success: true,
};
// Create a Receipts object with a vector of receipt vectors
let receipts = Receipts {
receipt_vec: vec![
vec![Some(receipt.clone())],
vec![Some(receipt.clone())],
vec![Some(receipt.clone())],
],
};
// Define the first block number
let first_block = 123;
// Create a request.
let request = bytes!("deadbeef");
// Create a vector of Requests containing the request.
let requests = vec![
Requests::new(vec![request.clone()]),
Requests::new(vec![request.clone()]),
Requests::new(vec![request.clone()]),
];
// Create a ExecutionOutcome object with the created bundle, receipts, requests, and
// first_block
let exec_res =
ExecutionOutcome { bundle: Default::default(), receipts, requests, first_block };
// Split the ExecutionOutcome at block number 124
let result = exec_res.clone().split_at(124);
// Define the expected lower ExecutionOutcome after splitting
let lower_execution_outcome = ExecutionOutcome {
bundle: Default::default(),
receipts: Receipts { receipt_vec: vec![vec![Some(receipt.clone())]] },
requests: vec![Requests::new(vec![request.clone()])],
first_block,
};
// Define the expected higher ExecutionOutcome after splitting
let higher_execution_outcome = ExecutionOutcome {
bundle: Default::default(),
receipts: Receipts {
receipt_vec: vec![vec![Some(receipt.clone())], vec![Some(receipt)]],
},
requests: vec![Requests::new(vec![request.clone()]), Requests::new(vec![request])],
first_block: 124,
};
// Assert that the split result matches the expected lower and higher outcomes
assert_eq!(result.0, Some(lower_execution_outcome));
assert_eq!(result.1, higher_execution_outcome);
// Assert that splitting at the first block number returns None for the lower outcome
assert_eq!(exec_res.clone().split_at(123), (None, exec_res));
}
#[test]
fn test_changed_accounts() {
// Set up some sample accounts
let address1 = Address::random();
let address2 = Address::random();
let address3 = Address::random();
// Set up account info with some changes
let account_info1 =
AccountInfo { nonce: 1, balance: U256::from(100), code_hash: B256::ZERO, code: None };
let account_info2 =
AccountInfo { nonce: 2, balance: U256::from(200), code_hash: B256::ZERO, code: None };
// Set up the bundle state with these accounts
let mut bundle_state = BundleState::default();
bundle_state.state.insert(
address1,
BundleAccount {
info: Some(account_info1),
storage: Default::default(),
original_info: Default::default(),
status: Default::default(),
},
);
bundle_state.state.insert(
address2,
BundleAccount {
info: Some(account_info2),
storage: Default::default(),
original_info: Default::default(),
status: Default::default(),
},
);
// Unchanged account
bundle_state.state.insert(
address3,
BundleAccount {
info: None,
storage: Default::default(),
original_info: Default::default(),
status: Default::default(),
},
);
let execution_outcome: ExecutionOutcome = ExecutionOutcome {
bundle: bundle_state,
receipts: Receipts::default(),
first_block: 0,
requests: vec![],
};
// Get the changed accounts
let changed_accounts: Vec<ChangedAccount> = execution_outcome.changed_accounts().collect();
// Assert that the changed accounts match the expected ones
assert_eq!(changed_accounts.len(), 2);
assert!(changed_accounts.contains(&ChangedAccount {
address: address1,
nonce: 1,
balance: U256::from(100)
}));
assert!(changed_accounts.contains(&ChangedAccount {
address: address2,
nonce: 2,
balance: U256::from(200)
}));
}
}