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// Copyright 2019-2025 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/>.
//! A minimal precompile runtime including the pallet-randomness pallet
use super::*;
use frame_support::{
construct_runtime, parameter_types,
traits::{ConstU32, EqualPrivilegeOnly, Everything, SortedMembers, VoteTally},
weights::Weight,
};
use frame_system::{EnsureRoot, EnsureSigned, EnsureSignedBy, RawOrigin};
use pallet_evm::{EnsureAddressNever, EnsureAddressRoot, FrameSystemAccountProvider};
use pallet_referenda::{impl_tracksinfo_get, Curve, TrackInfo};
use parity_scale_codec::{Decode, Encode, MaxEncodedLen};
use precompile_utils::{precompile_set::*, testing::*};
use scale_info::TypeInfo;
use sp_core::H256;
use sp_runtime::{
traits::{BlakeTwo256, IdentityLookup},
BuildStorage, Perbill,
use sp_std::convert::{TryFrom, TryInto};
pub type AccountId = MockAccount;
pub type Balance = u128;
type Block = frame_system::mocking::MockBlockU32<Runtime>;
// Configure a mock runtime to test the pallet.
construct_runtime!(
pub enum Runtime
{
System: frame_system,
Balances: pallet_balances,
Evm: pallet_evm,
Timestamp: pallet_timestamp,
Preimage: pallet_preimage,
Scheduler: pallet_scheduler,
Referenda: pallet_referenda,
}
);
parameter_types! {
pub const BlockHashCount: u32 = 250;
pub const MaximumBlockWeight: Weight = Weight::from_parts(1024, 1);
pub const MaximumBlockLength: u32 = 2 * 1024;
pub const AvailableBlockRatio: Perbill = Perbill::one();
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 = [u8; 4];
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 TestPrecompiles<R> = PrecompileSetBuilder<
R,
(
PrecompileAt<AddressU64<1>, ReferendaPrecompile<R, GovOrigin>>,
RevertPrecompile<AddressU64<2>>,
),
>;
pub type PCall = ReferendaPrecompileCall<Runtime, GovOrigin>;
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: TestPrecompiles<Runtime> = TestPrecompiles::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 = EnsureAddressRoot<AccountId>;
type WithdrawOrigin = EnsureAddressNever<AccountId>;
type AddressMapping = AccountId;
type Currency = Balances;
type Runner = pallet_evm::runner::stack::Runner<Self>;
type PrecompilesType = TestPrecompiles<Runtime>;
type PrecompilesValue = PrecompilesValue;
type ChainId = ();
type OnChargeTransaction = ();
type BlockGasLimit = BlockGasLimit;
type BlockHashMapping = pallet_evm::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>;
type AccountProvider = FrameSystemAccountProvider<Runtime>;
pub const MinimumPeriod: u64 = 5;
impl pallet_timestamp::Config for Runtime {
type Moment = u64;
type OnTimestampSet = ();
type MinimumPeriod = MinimumPeriod;
impl pallet_preimage::Config for Runtime {
type ManagerOrigin = EnsureRoot<AccountId>;
type Consideration = ();
impl pallet_scheduler::Config for Runtime {
type PalletsOrigin = OriginCaller;
type MaximumWeight = MaximumBlockWeight;
type ScheduleOrigin = EnsureRoot<AccountId>;
type MaxScheduledPerBlock = ConstU32<100>;
type OriginPrivilegeCmp = EqualPrivilegeOnly;
type Preimages = Preimage;
pub static AlarmInterval: u32 = 1;
pub struct OneToFive;
impl SortedMembers<AccountId> for OneToFive {
fn sorted_members() -> Vec<AccountId> {
vec![
Alice.into(),
Bob.into(),
Charlie.into(),
David.into(),
Zero.into(),
]
#[cfg(feature = "runtime-benchmarks")]
fn add(_m: &AccountId) {}
pub struct TestTracksInfo;
impl TracksInfo<u128, u32> for TestTracksInfo {
type Id = u8;
type RuntimeOrigin = <RuntimeOrigin as OriginTrait>::PalletsOrigin;
fn tracks() -> &'static [(Self::Id, TrackInfo<u128, u32>)] {
static DATA: [(u8, TrackInfo<u128, u32>); 2] = [
0u8,
TrackInfo {
name: "root",
max_deciding: 1,
decision_deposit: 10,
prepare_period: 4,
decision_period: 4,
confirm_period: 2,
min_enactment_period: 4,
min_approval: Curve::LinearDecreasing {
length: Perbill::from_percent(100),
floor: Perbill::from_percent(50),
ceil: Perbill::from_percent(100),
},
min_support: Curve::LinearDecreasing {
floor: Perbill::from_percent(0),
1u8,
name: "none",
max_deciding: 3,
decision_deposit: 1,
prepare_period: 2,
decision_period: 2,
confirm_period: 1,
min_enactment_period: 2,
floor: Perbill::from_percent(95),
floor: Perbill::from_percent(90),
];
&DATA[..]
fn track_for(id: &Self::RuntimeOrigin) -> Result<Self::Id, ()> {
if let Ok(system_origin) = frame_system::RawOrigin::try_from(id.clone()) {
match system_origin {
frame_system::RawOrigin::Root => Ok(0),
frame_system::RawOrigin::None => Ok(1),
_ => Err(()),
} else {
Err(())
impl_tracksinfo_get!(TestTracksInfo, u128, u32);
#[derive(Encode, Debug, Decode, TypeInfo, Eq, PartialEq, Clone, MaxEncodedLen)]
pub struct Tally {
pub ayes: u32,
pub nays: u32,
impl<Class> VoteTally<u32, Class> for Tally {
fn new(_: Class) -> Self {
Self { ayes: 0, nays: 0 }
fn ayes(&self, _: Class) -> u32 {
self.ayes
fn support(&self, _: Class) -> Perbill {
Perbill::from_percent(self.ayes)
fn approval(&self, _: Class) -> Perbill {
if self.ayes + self.nays > 0 {
Perbill::from_rational(self.ayes, self.ayes + self.nays)
Perbill::zero()
fn unanimity(_: Class) -> Self {
Self { ayes: 100, nays: 0 }
fn rejection(_: Class) -> Self {
Self { ayes: 0, nays: 100 }
fn from_requirements(support: Perbill, approval: Perbill, _: Class) -> Self {
let ayes = support.mul_ceil(100u32);
let nays = ((ayes as u64) * 1_000_000_000u64 / approval.deconstruct() as u64) as u32 - ayes;
Self { ayes, nays }
fn setup(_: Class, _: Perbill) {}
pub const SubmissionDeposit: u128 = 15;
impl pallet_referenda::Config for Runtime {
type Scheduler = Scheduler;
type Currency = pallet_balances::Pallet<Self>;
type SubmitOrigin = EnsureSigned<AccountId>;
type CancelOrigin = EnsureSignedBy<OneToFive, AccountId>;
type KillOrigin = EnsureRoot<AccountId>;
type Slash = ();
type Votes = u32;
type Tally = Tally;
type SubmissionDeposit = SubmissionDeposit;
type MaxQueued = ConstU32<3>;
type UndecidingTimeout = ConstU32<20>;
type AlarmInterval = AlarmInterval;
type Tracks = TestTracksInfo;
pub struct GovOrigin;
impl FromStr for GovOrigin {
type Err = ();
fn from_str(_s: &str) -> Result<Self, Self::Err> {
impl From<GovOrigin> for OriginCaller {
fn from(_o: GovOrigin) -> OriginCaller {
OriginCaller::system(RawOrigin::Root)
/// Externality builder for pallet referenda mock runtime
pub(crate) struct ExtBuilder {
/// Balance amounts per AccountId
balances: Vec<(AccountId, Balance)>,
impl Default for ExtBuilder {
fn default() -> ExtBuilder {
ExtBuilder {
balances: Vec::new(),
impl ExtBuilder {
#[allow(dead_code)]
pub(crate) fn with_balances(mut self, balances: Vec<(AccountId, Balance)>) -> Self {
self.balances = balances;
self
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,
.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<_>>()