Grcov report - mod.rs

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// Copyright 2019-2025 PureStake Inc.

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// This file is part of Moonbeam.

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// Moonbeam is free software: you can redistribute it and/or modify

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// it under the terms of the GNU General Public License as published by

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// the Free Software Foundation, either version 3 of the License, or

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// (at your option) any later version.

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// Moonbeam is distributed in the hope that it will be useful,

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// but WITHOUT ANY WARRANTY; without even the implied warranty of

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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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// GNU General Public License for more details.

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// You should have received a copy of the GNU General Public License

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// along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.

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#![allow(dead_code)]

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use cumulus_primitives_parachain_inherent::ParachainInherentData;

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use fp_evm::GenesisAccount;

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use frame_support::{

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	assert_ok,

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	traits::{OnFinalize, OnInitialize},

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};

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pub use moonriver_runtime::{

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	asset_config::AssetRegistrarMetadata, currency::MOVR, xcm_config::AssetType, AccountId,

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	AssetId, AssetManager, AsyncBacking, AuthorInherent, Balance, Ethereum, InflationInfo,

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	ParachainStaking, Range, Runtime, RuntimeCall, RuntimeEvent, System, TransactionConverter,

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	UncheckedExtrinsic, HOURS,

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};

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use nimbus_primitives::{NimbusId, NIMBUS_ENGINE_ID};

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use polkadot_parachain::primitives::HeadData;

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use sp_consensus_slots::Slot;

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use sp_core::{Encode, H160};

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use sp_runtime::{traits::Dispatchable, BuildStorage, Digest, DigestItem, Perbill, Percent};

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use std::collections::BTreeMap;

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use fp_rpc::ConvertTransaction;

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use moonriver_runtime::{Assets, EvmForeignAssets};

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use pallet_transaction_payment::Multiplier;

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use sp_runtime::traits::MaybeEquivalence;

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pub fn existential_deposit() -> u128 {

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	<Runtime as pallet_balances::Config>::ExistentialDeposit::get()

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10

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// A valid signed Alice transfer.

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pub const VALID_ETH_TX: &str =

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	"02f86d8205018085174876e80085e8d4a5100082520894f24ff3a9cf04c71dbc94d0b566f7a27b9456\

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	6cac8080c001a0e1094e1a52520a75c0255db96132076dd0f1263089f838bea548cbdbfc64a4d19f031c\

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	92a8cb04e2d68d20a6158d542a07ac440cc8d07b6e36af02db046d92df";

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// An invalid signed Alice transfer with a gas limit artifically set to 0.

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pub const INVALID_ETH_TX: &str =

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	"f86180843b9aca00809412cb274aad8251c875c0bf6872b67d9983e53fdd01801ca00e28ba2dd3c5a\

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	3fd467d4afd7aefb4a34b373314fff470bb9db743a84d674a0aa06e5994f2d07eafe1c37b4ce5471ca\

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	ecec29011f6f5bf0b1a552c55ea348df35f";

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3

pub fn rpc_run_to_block(n: u32) {

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	while System::block_number() < n {

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		Ethereum::on_finalize(System::block_number());

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		System::set_block_number(System::block_number() + 1);

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		Ethereum::on_initialize(System::block_number());

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3

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3

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/// Utility function that advances the chain to the desired block number.

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/// If an author is provided, that author information is injected to all the blocks in the meantime.

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pub fn run_to_block(n: u32, author: Option<NimbusId>) {

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	// Finalize the first block

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	Ethereum::on_finalize(System::block_number());

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6609

	while System::block_number() < n {

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		// Set the new block number and author

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		match author {

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			Some(ref author) => {

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				let pre_digest = Digest {

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					logs: vec![DigestItem::PreRuntime(NIMBUS_ENGINE_ID, author.encode())],

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};

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				System::reset_events();

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				System::initialize(

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					&(System::block_number() + 1),

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					&System::parent_hash(),

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					&pre_digest,

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);

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			None => {

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				System::set_block_number(System::block_number() + 1);

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		increase_last_relay_slot_number(1);

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		// Initialize the new block

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		AuthorInherent::on_initialize(System::block_number());

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		ParachainStaking::on_initialize(System::block_number());

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		Ethereum::on_initialize(System::block_number());

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		// Finalize the block

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		Ethereum::on_finalize(System::block_number());

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		ParachainStaking::on_finalize(System::block_number());

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3

pub fn last_event() -> RuntimeEvent {

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	System::events().pop().expect("Event expected").event

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3

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// Helper function to give a simple evm context suitable for tests.

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// We can remove this once https://github.com/rust-blockchain/evm/pull/35

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// is in our dependency graph.

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pub fn evm_test_context() -> fp_evm::Context {

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	fp_evm::Context {

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		address: Default::default(),

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		caller: Default::default(),

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		apparent_value: From::from(0),

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// Test struct with the purpose of initializing xcm assets

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#[derive(Clone)]

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pub struct XcmAssetInitialization {

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	pub asset_type: AssetType,

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	pub metadata: AssetRegistrarMetadata,

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	pub balances: Vec<(AccountId, Balance)>,

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	pub is_sufficient: bool,

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pub struct ExtBuilder {

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	// endowed accounts with balances

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	balances: Vec<(AccountId, Balance)>,

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	// [collator, amount]

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	collators: Vec<(AccountId, Balance)>,

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	// [delegator, collator, nomination_amount]

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	delegations: Vec<(AccountId, AccountId, Balance, Percent)>,

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	// per-round inflation config

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	inflation: InflationInfo<Balance>,

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	// AuthorId -> AccoutId mappings

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	mappings: Vec<(NimbusId, AccountId)>,

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	// Crowdloan fund

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	crowdloan_fund: Balance,

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	// Chain id

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	chain_id: u64,

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	// EVM genesis accounts

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	evm_accounts: BTreeMap<H160, GenesisAccount>,

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	// [assettype, metadata, Vec<Account, Balance,>, is_sufficient]

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	xcm_assets: Vec<XcmAssetInitialization>,

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	evm_native_foreign_assets: bool,

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	safe_xcm_version: Option<u32>,

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impl Default for ExtBuilder {

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	fn default() -> ExtBuilder {

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		ExtBuilder {

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			balances: vec![],

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			delegations: vec![],

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			collators: vec![],

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			inflation: InflationInfo {

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				expect: Range {

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					min: 100_000 * MOVR,

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					ideal: 200_000 * MOVR,

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					max: 500_000 * MOVR,

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},

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				// not used

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				annual: Range {

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					min: Perbill::from_percent(50),

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					ideal: Perbill::from_percent(50),

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					max: Perbill::from_percent(50),

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},

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				// unrealistically high parameterization, only for testing

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				round: Range {

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					min: Perbill::from_percent(5),

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					ideal: Perbill::from_percent(5),

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					max: Perbill::from_percent(5),

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},

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},

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			mappings: vec![],

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			crowdloan_fund: 0,

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			chain_id: CHAIN_ID,

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			evm_accounts: BTreeMap::new(),

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			xcm_assets: vec![],

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			evm_native_foreign_assets: false,

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			safe_xcm_version: None,

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impl ExtBuilder {

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	pub fn with_evm_accounts(mut self, accounts: BTreeMap<H160, GenesisAccount>) -> Self {

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		self.evm_accounts = accounts;

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		self

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	pub fn with_balances(mut self, balances: Vec<(AccountId, Balance)>) -> Self {

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		self.balances = balances;

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		self

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	pub fn with_collators(mut self, collators: Vec<(AccountId, Balance)>) -> Self {

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		self.collators = collators;

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		self

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	pub fn with_delegations(mut self, delegations: Vec<(AccountId, AccountId, Balance)>) -> Self {

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		self.delegations = delegations

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			.into_iter()

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			.map(|d| (d.0, d.1, d.2, Percent::zero()))

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			.collect();

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		self

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	pub fn with_crowdloan_fund(mut self, crowdloan_fund: Balance) -> Self {

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		self.crowdloan_fund = crowdloan_fund;

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		self

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	pub fn with_mappings(mut self, mappings: Vec<(NimbusId, AccountId)>) -> Self {

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		self.mappings = mappings;

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		self

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	#[allow(dead_code)]

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	pub fn with_inflation(mut self, inflation: InflationInfo<Balance>) -> Self {

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		self.inflation = inflation;

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		self

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	pub fn with_xcm_assets(mut self, xcm_assets: Vec<XcmAssetInitialization>) -> Self {

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		self.xcm_assets = xcm_assets;

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		self

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	pub fn with_evm_native_foreign_assets(mut self) -> Self {

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		self.evm_native_foreign_assets = true;

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		self

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	pub fn with_safe_xcm_version(mut self, safe_xcm_version: u32) -> Self {

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		self.safe_xcm_version = Some(safe_xcm_version);

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		self

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	pub fn build(self) -> sp_io::TestExternalities {

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		let mut t = frame_system::GenesisConfig::<Runtime>::default()

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			.build_storage()

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			.unwrap();

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		pallet_balances::GenesisConfig::<Runtime> {

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			balances: self.balances,

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		.assimilate_storage(&mut t)

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		.unwrap();

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		pallet_parachain_staking::GenesisConfig::<Runtime> {

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			candidates: self.collators,

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			delegations: self.delegations,

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			inflation_config: self.inflation,

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			collator_commission: Perbill::from_percent(20),

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			parachain_bond_reserve_percent: Percent::from_percent(30),

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			blocks_per_round: 2 * HOURS,

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			num_selected_candidates: 8,

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		.assimilate_storage(&mut t)

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		.unwrap();

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		pallet_crowdloan_rewards::GenesisConfig::<Runtime> {

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			funded_amount: self.crowdloan_fund,

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		.assimilate_storage(&mut t)

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		.unwrap();

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		pallet_author_mapping::GenesisConfig::<Runtime> {

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			mappings: self.mappings,

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		.assimilate_storage(&mut t)

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		.unwrap();

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		let genesis_config = pallet_evm_chain_id::GenesisConfig::<Runtime> {

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			chain_id: self.chain_id,

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			..Default::default()

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};

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		genesis_config.assimilate_storage(&mut t).unwrap();

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		let genesis_config = pallet_evm::GenesisConfig::<Runtime> {

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			accounts: self.evm_accounts,

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			..Default::default()

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};

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		genesis_config.assimilate_storage(&mut t).unwrap();

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		let genesis_config = pallet_ethereum::GenesisConfig::<Runtime> {

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			..Default::default()

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};

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		genesis_config.assimilate_storage(&mut t).unwrap();

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		let genesis_config = pallet_xcm::GenesisConfig::<Runtime> {

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			safe_xcm_version: self.safe_xcm_version,

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			..Default::default()

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};

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		genesis_config.assimilate_storage(&mut t).unwrap();

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		let genesis_config = pallet_transaction_payment::GenesisConfig::<Runtime> {

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			multiplier: Multiplier::from(10u128),

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			..Default::default()

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};

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		genesis_config.assimilate_storage(&mut t).unwrap();

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		let mut ext = sp_io::TestExternalities::new(t);

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		let xcm_assets = self.xcm_assets.clone();

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		ext.execute_with(|| {

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			// If any xcm assets specified, we register them here

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			for xcm_asset_initialization in xcm_assets {

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				let asset_id: AssetId = xcm_asset_initialization.asset_type.clone().into();

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				if self.evm_native_foreign_assets {

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					let AssetType::Xcm(location) = xcm_asset_initialization.asset_type;

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					let metadata = xcm_asset_initialization.metadata.clone();

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					EvmForeignAssets::register_foreign_asset(

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						asset_id,

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						xcm_builder::WithLatestLocationConverter::convert_back(&location).unwrap(),

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						metadata.decimals,

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						metadata.symbol.try_into().unwrap(),

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						metadata.name.try_into().unwrap(),

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1

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					.expect("register evm native foreign asset");

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					for (account, balance) in xcm_asset_initialization.balances {

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						EvmForeignAssets::mint_into(asset_id.into(), account, balance.into())

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							.expect("mint evm native foreign asset");

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1

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				} else {

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					AssetManager::register_foreign_asset(

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						root_origin(),

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						xcm_asset_initialization.asset_type,

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						xcm_asset_initialization.metadata,

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1,

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						xcm_asset_initialization.is_sufficient,

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8

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					.unwrap();

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					for (account, balance) in xcm_asset_initialization.balances {

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						Assets::mint(

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							origin_of(AssetManager::account_id()),

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							asset_id.into(),

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							account,

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							balance,

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						.unwrap();

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			System::set_block_number(1);

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});

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ext

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pub const CHAIN_ID: u64 = 1281;

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pub const ALICE: [u8; 20] = [4u8; 20];

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pub const ALICE_NIMBUS: [u8; 32] = [4u8; 32];

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pub const BOB: [u8; 20] = [5u8; 20];

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pub const CHARLIE: [u8; 20] = [6u8; 20];

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pub const DAVE: [u8; 20] = [7u8; 20];

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pub const EVM_CONTRACT: [u8; 20] = [8u8; 20];

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363

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pub fn origin_of(account_id: AccountId) -> <Runtime as frame_system::Config>::RuntimeOrigin {

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	<Runtime as frame_system::Config>::RuntimeOrigin::signed(account_id)

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28

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367

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pub fn inherent_origin() -> <Runtime as frame_system::Config>::RuntimeOrigin {

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	<Runtime as frame_system::Config>::RuntimeOrigin::none()

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pub fn root_origin() -> <Runtime as frame_system::Config>::RuntimeOrigin {

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	<Runtime as frame_system::Config>::RuntimeOrigin::root()

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/// Mock the inherent that sets validation data in ParachainSystem, which

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/// contains the `relay_chain_block_number`, which is used in `author-filter` as a

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/// source of randomness to filter valid authors at each block.

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pub fn set_parachain_inherent_data() {

379

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	use cumulus_primitives_core::PersistedValidationData;

380

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	use cumulus_test_relay_sproof_builder::RelayStateSproofBuilder;

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14

382

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	let author = AccountId::from(<pallet_evm::Pallet<Runtime>>::find_author());

383

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	pallet_author_inherent::Author::<Runtime>::put(author);

384

14

385

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	let mut relay_sproof = RelayStateSproofBuilder::default();

386

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	relay_sproof.para_id = 100u32.into();

387

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	relay_sproof.included_para_head = Some(HeadData(vec![1, 2, 3]));

388

14

389

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	let additional_key_values = vec![(

390

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		moonbeam_core_primitives::well_known_relay_keys::TIMESTAMP_NOW.to_vec(),

391

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		sp_timestamp::Timestamp::default().encode(),

392

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)];

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14

394

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	relay_sproof.additional_key_values = additional_key_values;

395

14

396

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	let (relay_parent_storage_root, relay_chain_state) = relay_sproof.into_state_root_and_proof();

397

14

398

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	let vfp = PersistedValidationData {

399

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		relay_parent_number: 1u32,

400

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		relay_parent_storage_root,

401

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		..Default::default()

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};

403

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	let parachain_inherent_data = ParachainInherentData {

404

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		validation_data: vfp,

405

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		relay_chain_state: relay_chain_state,

406

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		downward_messages: Default::default(),

407

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		horizontal_messages: Default::default(),

408

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};

409

14

	assert_ok!(RuntimeCall::ParachainSystem(

410

14

		cumulus_pallet_parachain_system::Call::<Runtime>::set_validation_data {

411

14

			data: parachain_inherent_data

412

14

413

14

414

14

	.dispatch(inherent_origin()));

415

14

416

417

7

pub fn unchecked_eth_tx(raw_hex_tx: &str) -> UncheckedExtrinsic {

418

7

	let converter = TransactionConverter;

419

7

	converter.convert_transaction(ethereum_transaction(raw_hex_tx))

420

7

421

422

9

pub fn ethereum_transaction(raw_hex_tx: &str) -> pallet_ethereum::Transaction {

423

9

	let bytes = hex::decode(raw_hex_tx).expect("Transaction bytes.");

424

9

	let transaction = ethereum::EnvelopedDecodable::decode(&bytes[..]);

425

9

	assert!(transaction.is_ok());

426

9

	transaction.unwrap()

427

9

428

429

6602

pub(crate) fn increase_last_relay_slot_number(amount: u64) {

430

6602

	let last_relay_slot = u64::from(AsyncBacking::slot_info().unwrap_or_default().0);

431

6602

	frame_support::storage::unhashed::put(

432

6602

		&frame_support::storage::storage_prefix(b"AsyncBacking", b"SlotInfo"),

433

6602

		&((Slot::from(last_relay_slot + amount), 0)),

434

6602

);

435

6602