zebra/zebrad/src/components/inbound/tests/fake_peer_set.rs

960 lines
32 KiB
Rust

//! Inbound service tests with a fake peer set.
use std::{
collections::HashSet,
iter::{self, FromIterator},
net::SocketAddr,
str::FromStr,
sync::Arc,
time::Duration,
};
use futures::FutureExt;
use tokio::{sync::oneshot, task::JoinHandle, time::timeout};
use tower::{buffer::Buffer, builder::ServiceBuilder, util::BoxService, Service, ServiceExt};
use tracing::Span;
use zebra_chain::{
amount::Amount,
block::{Block, Height},
fmt::humantime_seconds,
parameters::Network::{self, *},
serialization::ZcashDeserializeInto,
transaction::{UnminedTx, UnminedTxId, VerifiedUnminedTx},
};
use zebra_consensus::{error::TransactionError, transaction, Config as ConsensusConfig};
use zebra_network::{AddressBook, InventoryResponse, Request, Response};
use zebra_node_services::mempool;
use zebra_state::{ChainTipChange, Config as StateConfig, CHAIN_TIP_UPDATE_WAIT_LIMIT};
use zebra_test::mock_service::{MockService, PanicAssertion};
use crate::{
components::{
inbound::{downloads::MAX_INBOUND_CONCURRENCY, Inbound, InboundSetupData},
mempool::{
gossip_mempool_transaction_id, unmined_transactions_in_blocks, Config as MempoolConfig,
Mempool, MempoolError, SameEffectsChainRejectionError, UnboxMempoolError,
},
sync::{self, BlockGossipError, SyncStatus, PEER_GOSSIP_DELAY},
},
BoxError,
};
use InventoryResponse::*;
/// Maximum time to wait for a network service request.
///
/// The default [`MockService`] value can be too short for some of these tests that take a little
/// longer than expected to actually send the network request.
///
/// Increasing this value causes the tests to take longer to complete, so it can't be too large.
const MAX_PEER_SET_REQUEST_DELAY: Duration = Duration::from_millis(500);
#[tokio::test(flavor = "multi_thread")]
async fn mempool_requests_for_transactions() {
let (
inbound_service,
_mempool_guard,
_committed_blocks,
added_transactions,
_mock_tx_verifier,
mut peer_set,
_state_guard,
_chain_tip_change,
sync_gossip_task_handle,
tx_gossip_task_handle,
) = setup(true).await;
let added_transactions: Vec<UnminedTx> = added_transactions
.iter()
.map(|t| t.transaction.clone())
.collect();
let added_transaction_ids: Vec<UnminedTxId> = added_transactions.iter().map(|t| t.id).collect();
// Test `Request::MempoolTransactionIds`
let response = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
match response {
Ok(Response::TransactionIds(response)) => assert_eq!(response, added_transaction_ids),
Ok(Response::Nil) => assert!(
added_transaction_ids.is_empty(),
"`MempoolTransactionIds` request should match added_transaction_ids {added_transaction_ids:?}, got Ok(Nil)"
),
_ => unreachable!(
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`, got {:?}",
response
),
};
// Test `Request::TransactionsById`
let hash_set = added_transaction_ids
.iter()
.copied()
.collect::<HashSet<_>>();
let response = inbound_service
.clone()
.oneshot(Request::TransactionsById(hash_set))
.await;
match response {
Ok(Response::Transactions(response)) => {
assert_eq!(
response,
added_transactions
.into_iter()
.map(Available)
.collect::<Vec<_>>(),
)
}
_ => unreachable!("`TransactionsById` requests should always respond `Ok(Vec<UnminedTx>)`"),
};
// check that nothing unexpected happened
peer_set.expect_no_requests().await;
let sync_gossip_result = sync_gossip_task_handle.now_or_never();
assert!(
sync_gossip_result.is_none(),
"unexpected error or panic in sync gossip task: {sync_gossip_result:?}",
);
let tx_gossip_result = tx_gossip_task_handle.now_or_never();
assert!(
tx_gossip_result.is_none(),
"unexpected error or panic in transaction gossip task: {tx_gossip_result:?}",
);
}
#[tokio::test(flavor = "multi_thread")]
async fn mempool_push_transaction() -> Result<(), crate::BoxError> {
// get a block that has at least one non coinbase transaction
let block: Arc<Block> =
zebra_test::vectors::BLOCK_MAINNET_982681_BYTES.zcash_deserialize_into()?;
// use the first transaction that is not coinbase
let tx = block.transactions[1].clone();
let test_transaction_id = tx.unmined_id();
let (
inbound_service,
_mempool_guard,
_committed_blocks,
_added_transactions,
mut tx_verifier,
mut peer_set,
_state_guard,
_chain_tip_change,
sync_gossip_task_handle,
tx_gossip_task_handle,
) = setup(false).await;
// Test `Request::PushTransaction`
let request = inbound_service
.clone()
.oneshot(Request::PushTransaction(tx.clone().into()));
// Simulate a successful transaction verification
let verification = tx_verifier.expect_request_that(|_| true).map(|responder| {
let transaction = responder
.request()
.clone()
.mempool_transaction()
.expect("unexpected non-mempool request");
// Set a dummy fee and sigops.
responder.respond(transaction::Response::from(
VerifiedUnminedTx::new(
transaction,
Amount::try_from(1_000_000).expect("invalid value"),
0,
)
.expect("verification should pass"),
));
});
let (push_response, _) = futures::join!(request, verification);
assert_eq!(
push_response.expect("unexpected error response from inbound service"),
Response::Nil,
"`PushTransaction` requests should always respond `Ok(Nil)`",
);
// Wait for the mempool to store the transaction
tokio::time::sleep(Duration::from_millis(100)).await;
// Use `Request::MempoolTransactionIds` to check the transaction was inserted to mempool
let mempool_response = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
assert_eq!(
mempool_response.expect("unexpected error response from mempool"),
Response::TransactionIds(vec![test_transaction_id]),
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`",
);
// Make sure there is an additional request broadcasting the
// inserted transaction to peers.
let mut hs = HashSet::new();
hs.insert(tx.unmined_id());
peer_set
.expect_request(Request::AdvertiseTransactionIds(hs))
.await
.respond(Response::Nil);
let sync_gossip_result = sync_gossip_task_handle.now_or_never();
assert!(
sync_gossip_result.is_none(),
"unexpected error or panic in sync gossip task: {sync_gossip_result:?}",
);
let tx_gossip_result = tx_gossip_task_handle.now_or_never();
assert!(
tx_gossip_result.is_none(),
"unexpected error or panic in transaction gossip task: {tx_gossip_result:?}",
);
Ok(())
}
#[tokio::test(flavor = "multi_thread")]
async fn mempool_advertise_transaction_ids() -> Result<(), crate::BoxError> {
// get a block that has at least one non coinbase transaction
let block: Block = zebra_test::vectors::BLOCK_MAINNET_982681_BYTES.zcash_deserialize_into()?;
// use the first transaction that is not coinbase
let test_transaction = block
.transactions
.into_iter()
.find(|tx| !tx.is_coinbase())
.expect("at least one non-coinbase transaction");
let test_transaction_id = test_transaction.unmined_id();
let txs = HashSet::from_iter([test_transaction_id]);
let (
inbound_service,
_mempool_guard,
_committed_blocks,
_added_transactions,
mut tx_verifier,
mut peer_set,
_state_guard,
_chain_tip_change,
sync_gossip_task_handle,
tx_gossip_task_handle,
) = setup(false).await;
// Test `Request::AdvertiseTransactionIds`
let request = inbound_service
.clone()
.oneshot(Request::AdvertiseTransactionIds(txs.clone()));
// Ensure the mocked peer set responds
let peer_set_responder =
peer_set
.expect_request(Request::TransactionsById(txs))
.map(|responder| {
let unmined_transaction = UnminedTx::from(test_transaction.clone());
responder.respond(Response::Transactions(vec![Available(unmined_transaction)]))
});
// Simulate a successful transaction verification
let verification = tx_verifier.expect_request_that(|_| true).map(|responder| {
let transaction = responder
.request()
.clone()
.mempool_transaction()
.expect("unexpected non-mempool request");
// Set a dummy fee and sigops.
responder.respond(transaction::Response::from(
VerifiedUnminedTx::new(
transaction,
Amount::try_from(1_000_000).expect("invalid value"),
0,
)
.expect("verification should pass"),
));
});
let (advertise_response, _, _) = futures::join!(request, peer_set_responder, verification);
assert_eq!(
advertise_response.expect("unexpected error response from inbound service"),
Response::Nil,
"`AdvertiseTransactionIds` requests should always respond `Ok(Nil)`",
);
// Wait for the mempool to store the transaction
tokio::time::sleep(Duration::from_millis(100)).await;
// Use `Request::MempoolTransactionIds` to check the transaction was inserted to mempool
let mempool_response = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
assert_eq!(
mempool_response.expect("unexpected error response from mempool"),
Response::TransactionIds(vec![test_transaction_id]),
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`",
);
// Make sure there is an additional request broadcasting the
// inserted transaction to peers.
let mut hs = HashSet::new();
hs.insert(test_transaction.unmined_id());
peer_set
.expect_request(Request::AdvertiseTransactionIds(hs))
.await
.respond(Response::Nil);
let sync_gossip_result = sync_gossip_task_handle.now_or_never();
assert!(
sync_gossip_result.is_none(),
"unexpected error or panic in sync gossip task: {sync_gossip_result:?}",
);
let tx_gossip_result = tx_gossip_task_handle.now_or_never();
assert!(
tx_gossip_result.is_none(),
"unexpected error or panic in transaction gossip task: {tx_gossip_result:?}",
);
Ok(())
}
#[tokio::test(flavor = "multi_thread")]
async fn mempool_transaction_expiration() -> Result<(), crate::BoxError> {
// Get a block that has at least one non coinbase transaction
let block: Block = zebra_test::vectors::BLOCK_MAINNET_982681_BYTES.zcash_deserialize_into()?;
// Use the first transaction that is not coinbase to test expiration
let tx1 = &*(block.transactions[1]).clone();
let mut tx1_id = tx1.unmined_id();
// Change the expiration height of the transaction to block 3
let mut tx1 = tx1.clone();
*tx1.expiry_height_mut() = zebra_chain::block::Height(3);
// Use the second transaction that is not coinbase to trigger `remove_expired_transactions()`
let tx2 = block.transactions[2].clone();
let mut tx2_id = tx2.unmined_id();
// Get services
let (
inbound_service,
mempool,
_committed_blocks,
_added_transactions,
mut tx_verifier,
mut peer_set,
state_service,
_chain_tip_change,
sync_gossip_task_handle,
tx_gossip_task_handle,
) = setup(false).await;
// Push test transaction
let request = inbound_service
.clone()
.oneshot(Request::PushTransaction(tx1.clone().into()));
// Simulate a successful transaction verification
let verification = tx_verifier.expect_request_that(|_| true).map(|responder| {
tx1_id = responder.request().tx_id();
let transaction = responder
.request()
.clone()
.mempool_transaction()
.expect("unexpected non-mempool request");
// Set a dummy fee and sigops.
responder.respond(transaction::Response::from(
VerifiedUnminedTx::new(
transaction,
Amount::try_from(1_000_000).expect("invalid value"),
0,
)
.expect("verification should pass"),
));
});
let (push_response, _) = futures::join!(request, verification);
assert_eq!(
push_response.expect("unexpected error response from inbound service"),
Response::Nil,
"`PushTransaction` requests should always respond `Ok(Nil)`",
);
// Wait for the mempool to store the transaction
tokio::time::sleep(Duration::from_millis(100)).await;
// Use `Request::MempoolTransactionIds` to check the transaction was inserted to mempool
let mempool_response = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
assert_eq!(
mempool_response.expect("unexpected error response from mempool"),
Response::TransactionIds(vec![tx1_id]),
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`",
);
// Add a new block to the state (make the chain tip advance)
let block_two: Arc<Block> = zebra_test::vectors::BLOCK_MAINNET_2_BYTES
.zcash_deserialize_into()
.unwrap();
state_service
.clone()
.oneshot(zebra_state::Request::CommitCheckpointVerifiedBlock(
block_two.clone().into(),
))
.await
.unwrap();
// Test transaction 1 is gossiped
let mut hs = HashSet::new();
hs.insert(tx1_id);
// Transaction and Block IDs are gossipped, in any order, after waiting for the gossip delay
tokio::time::sleep(PEER_GOSSIP_DELAY).await;
let possible_requests = &mut [
Request::AdvertiseTransactionIds(hs),
Request::AdvertiseBlock(block_two.hash()),
]
.to_vec();
peer_set
.expect_request_that(|request| {
let is_possible = possible_requests.contains(request);
*possible_requests = possible_requests
.clone()
.into_iter()
.filter(|possible| possible != request)
.collect();
is_possible
})
.await
.respond(Response::Nil);
peer_set
.expect_request_that(|request| {
let is_possible = possible_requests.contains(request);
*possible_requests = possible_requests
.clone()
.into_iter()
.filter(|possible| possible != request)
.collect();
is_possible
})
.await
.respond(Response::Nil);
// Make sure tx1 is still in the mempool as it is not expired yet.
let request = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
match request {
Ok(Response::TransactionIds(response)) => {
assert_eq!(response, vec![tx1_id])
}
Ok(Response::Nil) => panic!(
"response to `MempoolTransactionIds` request should match {:?}",
vec![tx1_id]
),
_ => unreachable!(
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`"
),
};
// As our test transaction will expire at a block height greater or equal to 3 we need to push block 3.
let block_three: Arc<Block> = zebra_test::vectors::BLOCK_MAINNET_3_BYTES
.zcash_deserialize_into()
.unwrap();
state_service
.clone()
.oneshot(zebra_state::Request::CommitCheckpointVerifiedBlock(
block_three.clone().into(),
))
.await
.unwrap();
// Test the block is gossiped, after waiting for the multi-gossip delay
tokio::time::sleep(PEER_GOSSIP_DELAY).await;
peer_set
.expect_request(Request::AdvertiseBlock(block_three.hash()))
.await
.respond(Response::Nil);
// Push a second transaction to trigger `remove_expired_transactions()`
let request = inbound_service
.clone()
.oneshot(Request::PushTransaction(tx2.clone().into()));
// Simulate a successful transaction verification
let verification = tx_verifier.expect_request_that(|_| true).map(|responder| {
tx2_id = responder.request().tx_id();
let transaction = responder
.request()
.clone()
.mempool_transaction()
.expect("unexpected non-mempool request");
// Set a dummy fee and sigops.
responder.respond(transaction::Response::from(
VerifiedUnminedTx::new(
transaction,
Amount::try_from(1_000_000).expect("invalid value"),
0,
)
.expect("verification should pass"),
));
});
let (push_response, _) = futures::join!(request, verification);
assert_eq!(
push_response.expect("unexpected error response from inbound service"),
Response::Nil,
"`PushTransaction` requests should always respond `Ok(Nil)`",
);
// Wait for the mempool to store the transaction
tokio::time::sleep(Duration::from_millis(100)).await;
// Use `Request::MempoolTransactionIds` to check the transaction was inserted to mempool
let mempool_response = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
// Only tx2 will be in the mempool while tx1 was expired
assert_eq!(
mempool_response.expect("unexpected error response from mempool"),
Response::TransactionIds(vec![tx2_id]),
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`",
);
// Check if tx1 was added to the rejected list as well
let response = mempool
.clone()
.oneshot(mempool::Request::Queue(vec![tx1_id.into()]))
.await
.unwrap();
let queued_responses = match response {
mempool::Response::Queued(queue_responses) => queue_responses,
_ => unreachable!("will never happen in this test"),
};
assert_eq!(queued_responses.len(), 1);
assert_eq!(
queued_responses
.into_iter()
.next()
.unwrap()
.unbox_mempool_error(),
MempoolError::StorageEffectsChain(SameEffectsChainRejectionError::Expired)
);
// Test transaction 2 is gossiped, after waiting for the multi-gossip delay
tokio::time::sleep(PEER_GOSSIP_DELAY).await;
let mut hs = HashSet::new();
hs.insert(tx2_id);
peer_set
.expect_request(Request::AdvertiseTransactionIds(hs))
.await
.respond(Response::Nil);
// Add all the rest of the continuous blocks we have to test tx2 will never expire.
let more_blocks: Vec<Arc<Block>> = vec![
zebra_test::vectors::BLOCK_MAINNET_4_BYTES
.zcash_deserialize_into()
.unwrap(),
zebra_test::vectors::BLOCK_MAINNET_5_BYTES
.zcash_deserialize_into()
.unwrap(),
zebra_test::vectors::BLOCK_MAINNET_6_BYTES
.zcash_deserialize_into()
.unwrap(),
];
for block in more_blocks {
state_service
.clone()
.oneshot(zebra_state::Request::CommitCheckpointVerifiedBlock(
block.clone().into(),
))
.await
.unwrap();
// Test the block is gossiped, after waiting for the multi-gossip delay
tokio::time::sleep(PEER_GOSSIP_DELAY).await;
peer_set
.expect_request(Request::AdvertiseBlock(block.hash()))
.await
.respond(Response::Nil);
let request = inbound_service
.clone()
.oneshot(Request::MempoolTransactionIds)
.await;
// tx2 is still in the mempool as the blockchain progress because the zero expiration height
match request {
Ok(Response::TransactionIds(response)) => {
assert_eq!(response, vec![tx2_id])
}
Ok(Response::Nil) => panic!(
"response to `MempoolTransactionIds` request should match {:?}",
vec![tx2_id]
),
_ => unreachable!(
"`MempoolTransactionIds` requests should always respond `Ok(Vec<UnminedTxId> | Nil)`"
),
};
}
// check that nothing unexpected happened
peer_set.expect_no_requests().await;
let sync_gossip_result = sync_gossip_task_handle.now_or_never();
assert!(
sync_gossip_result.is_none(),
"unexpected error or panic in sync gossip task: {sync_gossip_result:?}",
);
let tx_gossip_result = tx_gossip_task_handle.now_or_never();
assert!(
tx_gossip_result.is_none(),
"unexpected error or panic in transaction gossip task: {tx_gossip_result:?}",
);
Ok(())
}
/// Test that the inbound downloader rejects blocks above the lookahead limit.
///
/// TODO: also test that it rejects blocks behind the tip limit. (Needs ~100 fake blocks.)
#[tokio::test(flavor = "multi_thread")]
async fn inbound_block_height_lookahead_limit() -> Result<(), crate::BoxError> {
// Get services
let (
inbound_service,
_mempool,
_committed_blocks,
_added_transactions,
mut tx_verifier,
mut peer_set,
state_service,
mut chain_tip_change,
sync_gossip_task_handle,
tx_gossip_task_handle,
) = setup(false).await;
// Get the next block
let block: Arc<Block> = zebra_test::vectors::BLOCK_MAINNET_2_BYTES.zcash_deserialize_into()?;
let block_hash = block.hash();
// Push test block hash
let _request = inbound_service
.clone()
.oneshot(Request::AdvertiseBlock(block_hash))
.await?;
// Block is fetched, and committed to the state
peer_set
.expect_request(Request::BlocksByHash(iter::once(block_hash).collect()))
.await
.respond(Response::Blocks(vec![Available(block)]));
// Wait for the chain tip update
if let Err(timeout_error) = timeout(
CHAIN_TIP_UPDATE_WAIT_LIMIT,
chain_tip_change.wait_for_tip_change(),
)
.await
.map(|change_result| change_result.expect("unexpected chain tip update failure"))
{
info!(
timeout = ?humantime_seconds(CHAIN_TIP_UPDATE_WAIT_LIMIT),
?timeout_error,
"timeout waiting for chain tip change after committing block"
);
}
// check that nothing unexpected happened
peer_set.expect_no_requests().await;
tx_verifier.expect_no_requests().await;
// Get a block that is a long way away from genesis
let block: Arc<Block> =
zebra_test::vectors::BLOCK_MAINNET_982681_BYTES.zcash_deserialize_into()?;
let block_hash = block.hash();
// Push test block hash
let _request = inbound_service
.clone()
.oneshot(Request::AdvertiseBlock(block_hash))
.await?;
// Block is fetched, but the downloader drops it because it is too high
peer_set
.expect_request(Request::BlocksByHash(iter::once(block_hash).collect()))
.await
.respond(Response::Blocks(vec![Available(block)]));
let response = state_service
.clone()
.oneshot(zebra_state::Request::Depth(block_hash))
.await?;
assert_eq!(response, zebra_state::Response::Depth(None));
// TODO: check that the block is not queued in the checkpoint verifier or non-finalized state
// check that nothing unexpected happened
peer_set.expect_no_requests().await;
tx_verifier.expect_no_requests().await;
let sync_gossip_result = sync_gossip_task_handle.now_or_never();
assert!(
sync_gossip_result.is_none(),
"unexpected error or panic in sync gossip task: {sync_gossip_result:?}",
);
let tx_gossip_result = tx_gossip_task_handle.now_or_never();
assert!(
tx_gossip_result.is_none(),
"unexpected error or panic in transaction gossip task: {tx_gossip_result:?}",
);
Ok(())
}
/// Setup a fake Zebra network stack, with fake peer set.
///
/// Adds some initial state blocks, and mempool transactions if `add_transactions` is true.
///
/// Uses a real block verifier, but a fake transaction verifier.
/// Does not run a block syncer task.
async fn setup(
add_transactions: bool,
) -> (
Buffer<
BoxService<zebra_network::Request, zebra_network::Response, BoxError>,
zebra_network::Request,
>,
Buffer<BoxService<mempool::Request, mempool::Response, BoxError>, mempool::Request>,
Vec<Arc<Block>>,
Vec<VerifiedUnminedTx>,
MockService<transaction::Request, transaction::Response, PanicAssertion, TransactionError>,
MockService<Request, Response, PanicAssertion>,
Buffer<BoxService<zebra_state::Request, zebra_state::Response, BoxError>, zebra_state::Request>,
ChainTipChange,
JoinHandle<Result<(), BlockGossipError>>,
JoinHandle<Result<(), BoxError>>,
) {
let _init_guard = zebra_test::init();
let network = Mainnet;
let consensus_config = ConsensusConfig::default();
let state_config = StateConfig::ephemeral();
let address_book = AddressBook::new(
SocketAddr::from_str("0.0.0.0:0").unwrap(),
Mainnet,
Span::none(),
);
let address_book = Arc::new(std::sync::Mutex::new(address_book));
let (sync_status, mut recent_syncs) = SyncStatus::new();
// UTXO verification doesn't matter for these tests.
let (state, _read_only_state_service, latest_chain_tip, mut chain_tip_change) =
zebra_state::init(state_config.clone(), network, Height::MAX, 0);
let mut state_service = ServiceBuilder::new().buffer(1).service(state);
// Download task panics and timeouts are propagated to the tests that use Groth16 verifiers.
let (block_verifier, _transaction_verifier, _groth16_download_handle, _max_checkpoint_height) =
zebra_consensus::router::init(
consensus_config.clone(),
network,
state_service.clone(),
true,
)
.await;
let mut peer_set = MockService::build()
.with_max_request_delay(MAX_PEER_SET_REQUEST_DELAY)
.for_unit_tests();
let buffered_peer_set = Buffer::new(BoxService::new(peer_set.clone()), 10);
let mock_tx_verifier = MockService::build().for_unit_tests();
let buffered_tx_verifier = Buffer::new(BoxService::new(mock_tx_verifier.clone()), 10);
let mut committed_blocks = Vec::new();
// Push the genesis block to the state.
// This must be done before creating the mempool to avoid `chain_tip_change`
// returning "reset" which would clear the mempool.
let genesis_block: Arc<Block> = zebra_test::vectors::BLOCK_MAINNET_GENESIS_BYTES
.zcash_deserialize_into()
.unwrap();
state_service
.ready()
.await
.unwrap()
.call(zebra_state::Request::CommitCheckpointVerifiedBlock(
genesis_block.clone().into(),
))
.await
.unwrap();
committed_blocks.push(genesis_block);
// Wait for the chain tip update
if let Err(timeout_error) = timeout(
CHAIN_TIP_UPDATE_WAIT_LIMIT,
chain_tip_change.wait_for_tip_change(),
)
.await
.map(|change_result| change_result.expect("unexpected chain tip update failure"))
{
info!(
timeout = ?humantime_seconds(CHAIN_TIP_UPDATE_WAIT_LIMIT),
?timeout_error,
"timeout waiting for chain tip change after committing block"
);
}
// Also push block 1.
// Block one is a network upgrade and the mempool will be cleared at it,
// let all our tests start after this event.
let block_one: Arc<Block> = zebra_test::vectors::BLOCK_MAINNET_1_BYTES
.zcash_deserialize_into()
.unwrap();
state_service
.clone()
.oneshot(zebra_state::Request::CommitCheckpointVerifiedBlock(
block_one.clone().into(),
))
.await
.unwrap();
committed_blocks.push(block_one);
// Don't wait for the chain tip update here, we wait for expect_request(AdvertiseBlock) below,
// which is called by the gossip_best_tip_block_hashes task once the chain tip changes.
let (mut mempool_service, transaction_receiver) = Mempool::new(
&MempoolConfig::default(),
buffered_peer_set.clone(),
state_service.clone(),
buffered_tx_verifier.clone(),
sync_status.clone(),
latest_chain_tip.clone(),
chain_tip_change.clone(),
);
// Pretend we're close to tip
SyncStatus::sync_close_to_tip(&mut recent_syncs);
let sync_gossip_task_handle = tokio::spawn(sync::gossip_best_tip_block_hashes(
sync_status.clone(),
chain_tip_change.clone(),
peer_set.clone(),
));
let tx_gossip_task_handle = tokio::spawn(gossip_mempool_transaction_id(
transaction_receiver,
peer_set.clone(),
));
// Make sure there is an additional request broadcasting the
// committed blocks to peers.
//
// (The genesis block gets skipped, because block 1 is committed before the task is spawned.)
for block in committed_blocks.iter().skip(1) {
peer_set
.expect_request(Request::AdvertiseBlock(block.hash()))
.await
.respond(Response::Nil);
}
// Enable the mempool
// Note: this needs to be done after the mock peer set service has received the AdvertiseBlock
// request to ensure that the call to `last_tip_change` returns the chain tip block for block_one
// and not the genesis block, or else the transactions from the genesis block will be added to
// the mempool storage's rejection list and tests will fail.
mempool_service.enable(&mut recent_syncs).await;
// Add transactions to the mempool, skipping verification and broadcast
let mut added_transactions = Vec::new();
if add_transactions {
added_transactions.extend(add_some_stuff_to_mempool(&mut mempool_service, network));
}
let mempool_service = BoxService::new(mempool_service);
let mempool_service = ServiceBuilder::new().buffer(1).service(mempool_service);
let (setup_tx, setup_rx) = oneshot::channel();
let inbound_service = ServiceBuilder::new()
.load_shed()
.service(Inbound::new(MAX_INBOUND_CONCURRENCY, setup_rx));
let inbound_service = BoxService::new(inbound_service);
let inbound_service = ServiceBuilder::new().buffer(1).service(inbound_service);
let setup_data = InboundSetupData {
address_book,
block_download_peer_set: buffered_peer_set,
block_verifier,
mempool: mempool_service.clone(),
state: state_service.clone(),
latest_chain_tip,
};
let r = setup_tx.send(setup_data);
// We can't expect or unwrap because the returned Result does not implement Debug
assert!(r.is_ok(), "unexpected setup channel send failure");
(
inbound_service,
mempool_service,
committed_blocks,
added_transactions,
mock_tx_verifier,
peer_set,
state_service,
chain_tip_change,
sync_gossip_task_handle,
tx_gossip_task_handle,
)
}
/// Manually add a transaction to the mempool storage.
///
/// Skips some mempool functionality, like transaction verification and peer broadcasts.
fn add_some_stuff_to_mempool(
mempool_service: &mut Mempool,
network: Network,
) -> Vec<VerifiedUnminedTx> {
// get the genesis block coinbase transaction from the Zcash blockchain.
let genesis_transactions: Vec<_> = unmined_transactions_in_blocks(..=0, network)
.take(1)
.collect();
// Insert the genesis block coinbase transaction into the mempool storage.
mempool_service
.storage()
.insert(genesis_transactions[0].clone())
.unwrap();
genesis_transactions
}