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// Copyright 2019-2022 PureStake Inc.
// This file is part of Moonbeam.
// Moonbeam 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.
// Moonbeam 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 Moonbeam. If not, see <http://www.gnu.org/licenses/>.
//! Test utilities
use crate::{ProxyPrecompile, ProxyPrecompileCall};
use frame_support::{
construct_runtime, parameter_types,
traits::{Everything, InstanceFilter},
weights::Weight,
};
use pallet_evm::{EnsureAddressNever, EnsureAddressOrigin, SubstrateBlockHashMapping};
use precompile_utils::{
precompile_set::{
AddressU64, CallableByContract, CallableByPrecompile, OnlyFrom, PrecompileAt,
PrecompileSetBuilder, RevertPrecompile, SubcallWithMaxNesting,
},
testing::MockAccount,
use scale_info::TypeInfo;
use sp_core::{ConstU32, H160, H256, U256};
use sp_io;
use sp_runtime::traits::{BlakeTwo256, IdentityLookup};
use sp_runtime::{
codec::{Decode, Encode, MaxEncodedLen},
BuildStorage,
pub type AccountId = MockAccount;
pub type Balance = u128;
type Block = frame_system::mocking::MockBlockU32<Runtime>;
construct_runtime!(
pub enum Runtime {
System: frame_system,
Balances: pallet_balances,
Evm: pallet_evm,
Timestamp: pallet_timestamp,
Proxy: pallet_proxy,
}
);
parameter_types! {
pub const BlockHashCount: u32 = 250;
pub const SS58Prefix: u8 = 42;
impl frame_system::Config for Runtime {
type BaseCallFilter = Everything;
type DbWeight = ();
type RuntimeOrigin = RuntimeOrigin;
type RuntimeTask = RuntimeTask;
type Nonce = u64;
type Block = Block;
type RuntimeCall = RuntimeCall;
type Hash = H256;
type Hashing = BlakeTwo256;
type AccountId = AccountId;
type Lookup = IdentityLookup<Self::AccountId>;
type RuntimeEvent = RuntimeEvent;
type BlockHashCount = BlockHashCount;
type Version = ();
type PalletInfo = PalletInfo;
type AccountData = pallet_balances::AccountData<Balance>;
type OnNewAccount = ();
type OnKilledAccount = ();
type SystemWeightInfo = ();
type BlockWeights = ();
type BlockLength = ();
type SS58Prefix = SS58Prefix;
type OnSetCode = ();
type MaxConsumers = frame_support::traits::ConstU32<16>;
type SingleBlockMigrations = ();
type MultiBlockMigrator = ();
type PreInherents = ();
type PostInherents = ();
type PostTransactions = ();
pub const ExistentialDeposit: u128 = 0;
impl pallet_balances::Config for Runtime {
type MaxReserves = ();
type ReserveIdentifier = ();
type MaxLocks = ();
type Balance = Balance;
type DustRemoval = ();
type ExistentialDeposit = ExistentialDeposit;
type AccountStore = System;
type WeightInfo = ();
type RuntimeHoldReason = ();
type FreezeIdentifier = ();
type MaxFreezes = ();
type RuntimeFreezeReason = ();
pub type Precompiles<R> = PrecompileSetBuilder<
R,
(
PrecompileAt<
AddressU64<1>,
ProxyPrecompile<R>,
SubcallWithMaxNesting<1>,
CallableByContract<crate::OnlyIsProxyAndProxy<R>>,
// Batch is the only precompile allowed to call Proxy.
CallableByPrecompile<OnlyFrom<AddressU64<2>>>,
),
>,
RevertPrecompile<AddressU64<2>>,
>;
pub type PCall = ProxyPrecompileCall<Runtime>;
pub struct EnsureAddressAlways;
impl<OuterOrigin> EnsureAddressOrigin<OuterOrigin> for EnsureAddressAlways {
type Success = ();
fn try_address_origin(
_address: &H160,
_origin: OuterOrigin,
) -> Result<Self::Success, OuterOrigin> {
Ok(())
fn ensure_address_origin(
) -> Result<Self::Success, sp_runtime::traits::BadOrigin> {
const MAX_POV_SIZE: u64 = 5 * 1024 * 1024;
/// Block storage limit in bytes. Set to 40 KB.
const BLOCK_STORAGE_LIMIT: u64 = 40 * 1024;
pub BlockGasLimit: U256 = U256::from(u64::MAX);
pub PrecompilesValue: Precompiles<Runtime> = Precompiles::new();
pub const WeightPerGas: Weight = Weight::from_parts(1, 0);
pub GasLimitPovSizeRatio: u64 = {
let block_gas_limit = BlockGasLimit::get().min(u64::MAX.into()).low_u64();
block_gas_limit.saturating_div(MAX_POV_SIZE)
pub GasLimitStorageGrowthRatio: u64 = {
block_gas_limit.saturating_div(BLOCK_STORAGE_LIMIT)
impl pallet_evm::Config for Runtime {
type FeeCalculator = ();
type GasWeightMapping = pallet_evm::FixedGasWeightMapping<Self>;
type WeightPerGas = WeightPerGas;
type CallOrigin = EnsureAddressAlways;
type WithdrawOrigin = EnsureAddressNever<AccountId>;
type AddressMapping = AccountId;
type Currency = Balances;
type Runner = pallet_evm::runner::stack::Runner<Self>;
type PrecompilesType = Precompiles<Self>;
type PrecompilesValue = PrecompilesValue;
type ChainId = ();
type OnChargeTransaction = ();
type BlockGasLimit = BlockGasLimit;
type BlockHashMapping = SubstrateBlockHashMapping<Self>;
type FindAuthor = ();
type OnCreate = ();
type GasLimitPovSizeRatio = GasLimitPovSizeRatio;
type SuicideQuickClearLimit = ConstU32<0>;
type GasLimitStorageGrowthRatio = GasLimitStorageGrowthRatio;
type Timestamp = Timestamp;
type WeightInfo = pallet_evm::weights::SubstrateWeight<Runtime>;
pub const MinimumPeriod: u64 = 5;
impl pallet_timestamp::Config for Runtime {
type Moment = u64;
type OnTimestampSet = ();
type MinimumPeriod = MinimumPeriod;
#[repr(u8)]
#[derive(
Debug, Eq, PartialEq, Ord, PartialOrd, Decode, MaxEncodedLen, Encode, Clone, Copy, TypeInfo,
)]
pub enum ProxyType {
Any = 0,
Something = 1,
Nothing = 2,
impl std::default::Default for ProxyType {
fn default() -> Self {
ProxyType::Any
impl crate::EvmProxyCallFilter for ProxyType {
fn is_evm_proxy_call_allowed(
&self,
_call: &crate::EvmSubCall,
_recipient_has_code: bool,
_gas: u64,
) -> precompile_utils::EvmResult<bool> {
Ok(match self {
Self::Any => true,
Self::Something => true,
Self::Nothing => false,
})
impl InstanceFilter<RuntimeCall> for ProxyType {
fn filter(&self, _: &RuntimeCall) -> bool {
true
fn is_superset(&self, o: &Self) -> bool {
(*self as u8) > (*o as u8)
pub const ProxyDepositBase: u64 = 100;
pub const ProxyDepositFactor: u64 = 1;
pub const MaxProxies: u32 = 5;
pub const MaxPending: u32 = 5;
impl pallet_proxy::Config for Runtime {
type ProxyType = ProxyType;
type ProxyDepositBase = ProxyDepositBase;
type ProxyDepositFactor = ProxyDepositFactor;
type MaxProxies = MaxProxies;
type MaxPending = MaxPending;
type CallHasher = BlakeTwo256;
type AnnouncementDepositBase = ();
type AnnouncementDepositFactor = ();
/// Build test externalities, prepopulated with data for testing democracy precompiles
pub(crate) struct ExtBuilder {
/// Endowed accounts with balances
balances: Vec<(AccountId, Balance)>,
impl Default for ExtBuilder {
fn default() -> ExtBuilder {
ExtBuilder { balances: vec![] }
impl ExtBuilder {
/// Fund some accounts before starting the test
pub(crate) fn with_balances(mut self, balances: Vec<(AccountId, Balance)>) -> Self {
self.balances = balances;
self
/// Build the test externalities for use in tests
pub(crate) fn build(self) -> sp_io::TestExternalities {
let mut t = frame_system::GenesisConfig::<Runtime>::default()
.build_storage()
.expect("Frame system builds valid default genesis config");
pallet_balances::GenesisConfig::<Runtime> {
balances: self.balances.clone(),
.assimilate_storage(&mut t)
.expect("Pallet balances storage can be assimilated");
let mut ext = sp_io::TestExternalities::new(t);
ext.execute_with(|| {
System::set_block_number(1);
});
ext
pub(crate) fn events() -> Vec<RuntimeEvent> {
System::events()
.into_iter()
.map(|r| r.event)
.collect::<Vec<_>>()
/// Panics if an event is not found in the system log of events
#[macro_export]
macro_rules! assert_event_emitted {
($event:expr) => {
match &$event {
e => {
assert!(
crate::mock::events().iter().find(|x| *x == e).is_some(),
"Event {:?} was not found in events: \n {:#?}",
e,
crate::mock::events()
// Panics if an event is found in the system log of events
macro_rules! assert_event_not_emitted {
crate::mock::events().iter().find(|x| *x == e).is_none(),
"Event {:?} was found in events: \n {:?}",