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// Copyright 2021 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
pub mod parachain;
pub mod relay_chain;
pub mod statemint_like;
use cumulus_primitives_core::ParaId;
use pallet_xcm_transactor::relay_indices::*;
use sp_runtime::traits::AccountIdConversion;
use sp_runtime::{AccountId32, BuildStorage};
use xcm_simulator::{decl_test_network, decl_test_parachain, decl_test_relay_chain, TestExt};
use polkadot_runtime_parachains::configuration::{
GenesisConfig as ConfigurationGenesisConfig, HostConfiguration,
};
use polkadot_runtime_parachains::paras::{
GenesisConfig as ParasGenesisConfig, ParaGenesisArgs, ParaKind,
use sp_core::{H160, U256};
use std::{collections::BTreeMap, str::FromStr};
pub const PARAALICE: [u8; 20] = [1u8; 20];
pub const PARABOB: [u8; 20] = [2u8; 20];
pub const RELAYALICE: AccountId32 = AccountId32::new([0u8; 32]);
pub const RELAYBOB: AccountId32 = AccountId32::new([2u8; 32]);
pub fn para_a_account() -> AccountId32 {
ParaId::from(1).into_account_truncating()
}
pub fn para_b_account() -> AccountId32 {
ParaId::from(2).into_account_truncating()
pub fn para_a_account_20() -> parachain::AccountId {
pub fn evm_account() -> H160 {
H160::from_str("1000000000000000000000000000000000000001").unwrap()
pub fn mock_para_genesis_info() -> ParaGenesisArgs {
ParaGenesisArgs {
genesis_head: vec![1u8].into(),
validation_code: vec![1u8].into(),
para_kind: ParaKind::Parachain,
pub fn mock_relay_config() -> HostConfiguration<relay_chain::BlockNumber> {
HostConfiguration::<relay_chain::BlockNumber> {
hrmp_channel_max_capacity: u32::MAX,
hrmp_channel_max_total_size: u32::MAX,
hrmp_max_parachain_inbound_channels: 10,
hrmp_max_parachain_outbound_channels: 10,
hrmp_channel_max_message_size: u32::MAX,
// Changed to avoid arithmetic errors within hrmp_close
max_downward_message_size: 100_000u32,
..Default::default()
decl_test_parachain! {
pub struct ParaA {
Runtime = parachain::Runtime,
XcmpMessageHandler = parachain::MsgQueue,
DmpMessageHandler = parachain::MsgQueue,
new_ext = para_ext(1),
pub struct ParaB {
new_ext = para_ext(2),
pub struct ParaC {
new_ext = para_ext(3),
pub struct Statemint {
Runtime = statemint_like::Runtime,
XcmpMessageHandler = statemint_like::MsgQueue,
DmpMessageHandler = statemint_like::MsgQueue,
new_ext = statemint_ext(1000),
decl_test_relay_chain! {
pub struct Relay {
Runtime = relay_chain::Runtime,
RuntimeCall = relay_chain::RuntimeCall,
RuntimeEvent = relay_chain::RuntimeEvent,
XcmConfig = relay_chain::XcmConfig,
MessageQueue = relay_chain::MessageQueue,
System = relay_chain::System,
new_ext = relay_ext(vec![1, 2, 3, 1000]),
decl_test_network! {
pub struct MockNet {
relay_chain = Relay,
parachains = vec![
(1, ParaA),
(2, ParaB),
(3, ParaC),
(1000, Statemint),
],
pub const INITIAL_BALANCE: u128 = 10_000_000_000_000_000;
pub const INITIAL_EVM_BALANCE: u128 = 0;
pub const INITIAL_EVM_NONCE: u32 = 1;
pub fn para_ext(para_id: u32) -> sp_io::TestExternalities {
use parachain::{MsgQueue, Runtime, System};
let mut t = frame_system::GenesisConfig::<Runtime>::default()
.build_storage()
.unwrap();
pallet_balances::GenesisConfig::<Runtime> {
balances: vec![(PARAALICE.into(), INITIAL_BALANCE)],
dev_accounts: None,
.assimilate_storage(&mut t)
pallet_xcm_transactor::GenesisConfig::<Runtime> {
// match relay runtime construct_runtime order in xcm_mock::relay_chain
relay_indices: RelayChainIndices {
hrmp: 6u8,
init_open_channel: 0u8,
accept_open_channel: 1u8,
close_channel: 2u8,
cancel_open_request: 6u8,
},
// EVM accounts are self-sufficient.
let mut evm_accounts = BTreeMap::new();
evm_accounts.insert(
evm_account(),
fp_evm::GenesisAccount {
nonce: U256::from(INITIAL_EVM_NONCE),
balance: U256::from(INITIAL_EVM_BALANCE),
storage: Default::default(),
code: vec![
0x00, // STOP
);
let genesis_config = pallet_evm::GenesisConfig::<Runtime> {
accounts: evm_accounts,
genesis_config.assimilate_storage(&mut t).unwrap();
let mut ext = sp_io::TestExternalities::new(t);
ext.execute_with(|| {
System::set_block_number(1);
MsgQueue::set_para_id(para_id.into());
});
ext
pub fn statemint_ext(para_id: u32) -> sp_io::TestExternalities {
use statemint_like::{MsgQueue, Runtime, System};
balances: vec![
(RELAYALICE.into(), INITIAL_BALANCE),
(RELAYBOB.into(), INITIAL_BALANCE),
pub fn relay_ext(paras: Vec<u32>) -> sp_io::TestExternalities {
use relay_chain::{Runtime, System};
balances: vec![(RELAYALICE, INITIAL_BALANCE)],
let para_genesis: Vec<(ParaId, ParaGenesisArgs)> = paras
.iter()
.map(|¶_id| (para_id.into(), mock_para_genesis_info()))
.collect();
let genesis_config = ConfigurationGenesisConfig::<Runtime> {
config: mock_relay_config(),
let genesis_config = ParasGenesisConfig::<Runtime> {
paras: para_genesis,
pub type RelayChainPalletXcm = pallet_xcm::Pallet<relay_chain::Runtime>;
pub type Hrmp = polkadot_runtime_parachains::hrmp::Pallet<relay_chain::Runtime>;
pub type StatemintBalances = pallet_balances::Pallet<statemint_like::Runtime>;
pub type StatemintChainPalletXcm = pallet_xcm::Pallet<statemint_like::Runtime>;
pub type StatemintAssets = pallet_assets::Pallet<statemint_like::Runtime>;
pub type RelayBalances = pallet_balances::Pallet<relay_chain::Runtime>;
pub type ParaBalances = pallet_balances::Pallet<parachain::Runtime>;
pub type XcmTransactor = pallet_xcm_transactor::Pallet<parachain::Runtime>;