add statemine emulator tests (#2630)

* fix typo

* statemine tests

* fix statemine tests

* cargo fmt, update readme

Cargo.toml

@@ -53,6 +53,7 @@ members = [
 	"parachains/runtimes/glutton/glutton-kusama",
 	"parachains/runtimes/testing/penpal",
 	"parachains/integration-tests/emulated/common",
+	"parachains/integration-tests/emulated/assets/statemine",
 	"parachains/integration-tests/emulated/assets/statemint",
 	"test/client",
 	"test/relay-sproof-builder",

parachains/integration-tests/emulated/assets/statemine/Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "statemine-it"
+version = "1.0.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+edition = "2021"
+description = "Statemine parachain runtime integration tests with xcm-emulator"
+
+[dependencies]
+codec = { package = "parity-scale-codec", version = "3.4.0", default-features = false }
+
+# Substrate
+sp-runtime = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-support = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+frame-system = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-core = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+sp-weights = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+pallet-balances = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+pallet-assets = { default-features = false, git = "https://github.com/paritytech/substrate", branch = "master" }
+
+# Polkadot
+polkadot-core-primitives = { default-features = false, git = "https://github.com/paritytech/polkadot", branch = "master" }
+polkadot-parachain = { default-features = false, git = "https://github.com/paritytech/polkadot", branch = "master" }
+polkadot-runtime-parachains = { git = "https://github.com/paritytech/polkadot", branch = "master" }
+polkadot-runtime = { git = "https://github.com/paritytech/polkadot", branch = "master" }
+xcm = { default-features = false, git = "https://github.com/paritytech/polkadot", branch = "master" }
+xcm-executor = { default-features = false, git = "https://github.com/paritytech/polkadot", branch = "master" }
+pallet-xcm = { default-features = false, git = "https://github.com/paritytech/polkadot", branch = "master" }
+
+# Cumulus
+parachains-common = { path = "../../../../common" }
+penpal-runtime = { path = "../../../../runtimes/testing/penpal" }
+statemine-runtime = { path = "../../../../runtimes/assets/statemine" }
+
+# Local
+xcm-emulator = { default-features = false, path = "../../../../../xcm/xcm-emulator" }
+integration-tests-common = { default-features = false, path = "../../common" }

parachains/integration-tests/emulated/assets/statemine/src/lib.rs

@@ -0,0 +1,30 @@
+pub use codec::Encode;
+pub use frame_support::{
+	assert_ok, instances::Instance1, pallet_prelude::Weight, traits::fungibles::Inspect,
+};
+pub use integration_tests_common::{
+	constants::{
+		accounts::{ALICE, BOB},
+		kusama::ED as KUSAMA_ED,
+		PROOF_SIZE_THRESHOLD, REF_TIME_THRESHOLD, XCM_V3,
+	},
+	AccountId, BHKusama, BHKusamaPallet, BHKusamaReceiver, BHKusamaSender, BHPolkadot,
+	BHPolkadotPallet, BHPolkadotReceiver, BHPolkadotSender, Collectives, CollectivesPallet,
+	CollectivesReceiver, CollectivesSender, Kusama, KusamaMockNet, KusamaPallet, KusamaReceiver,
+	KusamaSender, PenpalKusama, PenpalKusamaReceiver, PenpalKusamaSender, PenpalPolkadot,
+	PenpalPolkadotReceiver, PenpalPolkadotSender, Polkadot, PolkadotMockNet, PolkadotPallet,
+	PolkadotReceiver, PolkadotSender, Statemine, StateminePallet, StatemineReceiver,
+	StatemineSender,
+};
+pub use polkadot_core_primitives::InboundDownwardMessage;
+pub use xcm::{
+	prelude::*,
+	v3::{Error, NetworkId::Kusama as KusamaId},
+};
+pub use xcm_emulator::{
+	assert_expected_events, bx, cumulus_pallet_dmp_queue, helpers::weight_within_threshold,
+	Parachain as Para, RelayChain as Relay, TestExt,
+};
+
+#[cfg(test)]
+mod tests;

parachains/integration-tests/emulated/assets/statemine/src/tests/mod.rs

@@ -0,0 +1,3 @@
+mod reserve_transfer;
+mod teleport;
+mod transact;

parachains/integration-tests/emulated/assets/statemine/src/tests/reserve_transfer.rs

@@ -0,0 +1,63 @@
+use crate::*;
+
+#[test]
+fn reserve_transfer_native_asset_from_relay_to_assets() {
+	// Init tests variables
+	let amount = KUSAMA_ED * 1000;
+	let relay_sender_balance_before = Kusama::account_data_of(KusamaSender::get()).free;
+	let para_receiver_balance_before = Statemine::account_data_of(StatemineReceiver::get()).free;
+
+	let origin = <Kusama as Relay>::RuntimeOrigin::signed(KusamaSender::get());
+	let assets_para_destination: VersionedMultiLocation =
+		Kusama::child_location_of(Statemine::para_id()).into();
+	let beneficiary: VersionedMultiLocation =
+		AccountId32 { network: None, id: StatemineReceiver::get().into() }.into();
+	let native_assets: VersionedMultiAssets = (Here, amount).into();
+	let fee_asset_item = 0;
+	let weight_limit = WeightLimit::Unlimited;
+
+	// Send XCM message from Relay Chain
+	Kusama::execute_with(|| {
+		assert_ok!(<Kusama as KusamaPallet>::XcmPallet::limited_reserve_transfer_assets(
+			origin,
+			bx!(assets_para_destination),
+			bx!(beneficiary),
+			bx!(native_assets),
+			fee_asset_item,
+			weight_limit,
+		));
+
+		type RuntimeEvent = <Kusama as Relay>::RuntimeEvent;
+
+		assert_expected_events!(
+			Kusama,
+			vec![
+				RuntimeEvent::XcmPallet(pallet_xcm::Event::Attempted(Outcome::Complete(weight))) => {
+					weight: weight_within_threshold((REF_TIME_THRESHOLD, PROOF_SIZE_THRESHOLD), Weight::from_parts(754_244_000, 0), *weight),
+				},
+			]
+		);
+	});
+
+	// Receive XCM message in Assets Parachain
+	Statemine::execute_with(|| {
+		type RuntimeEvent = <Statemine as Para>::RuntimeEvent;
+
+		assert_expected_events!(
+			Statemine,
+			vec![
+				RuntimeEvent::DmpQueue(cumulus_pallet_dmp_queue::Event::ExecutedDownward {
+					outcome: Outcome::Incomplete(_, Error::UntrustedReserveLocation),
+					..
+				}) => {},
+			]
+		);
+	});
+
+	// Check if balances are updated accordingly in Relay Chain and Assets Parachain
+	let relay_sender_balance_after = Kusama::account_data_of(KusamaSender::get()).free;
+	let para_sender_balance_after = Statemine::account_data_of(StatemineReceiver::get()).free;
+
+	assert_eq!(relay_sender_balance_before - amount, relay_sender_balance_after);
+	assert_eq!(para_sender_balance_after, para_receiver_balance_before);
+}

parachains/integration-tests/emulated/assets/statemine/src/tests/teleport.rs

@@ -0,0 +1,60 @@
+use crate::*;
+
+#[test]
+fn teleport_native_assets_from_relay_to_assets_para() {
+	// Init tests variables
+	let amount = KUSAMA_ED * 1000;
+	let relay_sender_balance_before = Kusama::account_data_of(KusamaSender::get()).free;
+	let para_receiver_balance_before = Statemine::account_data_of(StatemineReceiver::get()).free;
+
+	let origin = <Kusama as Relay>::RuntimeOrigin::signed(KusamaSender::get());
+	let assets_para_destination: VersionedMultiLocation =
+		Kusama::child_location_of(Statemine::para_id()).into();
+	let beneficiary: VersionedMultiLocation =
+		AccountId32 { network: None, id: StatemineReceiver::get().into() }.into();
+	let native_assets: VersionedMultiAssets = (Here, amount).into();
+	let fee_asset_item = 0;
+	let weight_limit = WeightLimit::Unlimited;
+
+	// Send XCM message from Relay Chain
+	Kusama::execute_with(|| {
+		assert_ok!(<Kusama as KusamaPallet>::XcmPallet::limited_teleport_assets(
+			origin,
+			bx!(assets_para_destination),
+			bx!(beneficiary),
+			bx!(native_assets),
+			fee_asset_item,
+			weight_limit,
+		));
+
+		type RuntimeEvent = <Kusama as Relay>::RuntimeEvent;
+
+		assert_expected_events!(
+			Kusama,
+			vec![
+				RuntimeEvent::XcmPallet(pallet_xcm::Event::Attempted(Outcome::Complete { .. })) => {},
+			]
+		);
+	});
+
+	// Receive XCM message in Assets Parachain
+	Statemine::execute_with(|| {
+		type RuntimeEvent = <Statemine as Para>::RuntimeEvent;
+
+		assert_expected_events!(
+			Statemine,
+			vec![
+				RuntimeEvent::Balances(pallet_balances::Event::Deposit { who, .. }) => {
+					who: *who == StatemineReceiver::get().into(),
+				},
+			]
+		);
+	});
+
+	// Check if balances are updated accordingly in Relay Chain and Assets Parachain
+	let relay_sender_balance_after = Kusama::account_data_of(KusamaSender::get()).free;
+	let para_sender_balance_after = Statemine::account_data_of(StatemineReceiver::get()).free;
+
+	assert_eq!(relay_sender_balance_before - amount, relay_sender_balance_after);
+	assert!(para_sender_balance_after > para_receiver_balance_before);
+}

parachains/integration-tests/emulated/assets/statemine/src/tests/transact.rs

@@ -0,0 +1,58 @@
+use crate::*;
+
+#[test]
+fn transact_sudo_from_relay_to_assets_para() {
+	// Init tests variables
+	// Call to be executed in Assets Parachain
+	const ASSET_ID: u32 = 1;
+
+	let call = <Statemine as Para>::RuntimeCall::Assets(pallet_assets::Call::<
+		<Statemine as Para>::Runtime,
+		Instance1,
+	>::force_create {
+		id: ASSET_ID.into(),
+		is_sufficient: true,
+		min_balance: 1000,
+		owner: StatemineSender::get().into(),
+	})
+	.encode()
+	.into();
+
+	// XcmPallet send arguments
+	let sudo_origin = <Kusama as Relay>::RuntimeOrigin::root();
+	let assets_para_destination: VersionedMultiLocation =
+		Kusama::child_location_of(Statemine::para_id()).into();
+
+	let weight_limit = WeightLimit::Unlimited;
+	let require_weight_at_most = Weight::from_parts(1000000000, 200000);
+	let origin_kind = OriginKind::Superuser;
+	let check_origin = None;
+
+	let xcm = VersionedXcm::from(Xcm(vec![
+		UnpaidExecution { weight_limit, check_origin },
+		Transact { require_weight_at_most, origin_kind, call },
+	]));
+
+	// Send XCM message from Relay Chain
+	Kusama::execute_with(|| {
+		assert_ok!(<Kusama as KusamaPallet>::XcmPallet::send(
+			sudo_origin,
+			bx!(assets_para_destination),
+			bx!(xcm),
+		));
+
+		type RuntimeEvent = <Kusama as Relay>::RuntimeEvent;
+
+		assert_expected_events!(
+			Kusama,
+			vec![
+				RuntimeEvent::XcmPallet(pallet_xcm::Event::Sent { .. }) => {},
+			]
+		);
+	});
+
+	// Receive XCM message in Assets Parachain
+	Statemine::execute_with(|| {
+		assert!(<Statemine as StateminePallet>::Assets::asset_exists(ASSET_ID));
+	});
+}

parachains/integration-tests/emulated/common/src/constants.rs

@@ -161,7 +161,6 @@ pub mod polkadot {
 					.map(|k| (k, ED * 4096))
 					.collect(),
 			},
-			indices: polkadot_runtime::IndicesConfig { indices: vec![] },
 			session: polkadot_runtime::SessionConfig {
 				keys: validators::initial_authorities()
 					.iter()
@@ -214,7 +213,9 @@ pub mod polkadot {
 pub mod kusama {
 	use super::*;
 	pub const ED: Balance = kusama_runtime_constants::currency::EXISTENTIAL_DEPOSIT;
-	const STASH: u128 = 100 * kusama_runtime_constants::currency::UNITS;
+	use kusama_runtime_constants::currency::UNITS as KSM;
+	const ENDOWMENT: u128 = 1_000_000 * KSM;
+	const STASH: u128 = 100 * KSM;
 
 	pub fn get_host_config() -> HostConfiguration<BlockNumber> {
 		HostConfiguration {
@@ -253,11 +254,9 @@ pub mod kusama {
 			balances: kusama_runtime::BalancesConfig {
 				balances: accounts::init_balances()
 					.iter()
-					.cloned()
-					.map(|k| (k, ED * 4096))
+					.map(|k: &AccountId| (k.clone(), ENDOWMENT))
 					.collect(),
 			},
-			indices: kusama_runtime::IndicesConfig { indices: vec![] },
 			session: kusama_runtime::SessionConfig {
 				keys: validators::initial_authorities()
 					.iter()
@@ -278,8 +277,8 @@ pub mod kusama {
 					.collect::<Vec<_>>(),
 			},
 			staking: kusama_runtime::StakingConfig {
-				minimum_validator_count: 1,
 				validator_count: validators::initial_authorities().len() as u32,
+				minimum_validator_count: 1,
 				stakers: validators::initial_authorities()
 					.iter()
 					.map(|x| {