add statemine emulator tests (#2630)

* fix typo

* statemine tests

* fix statemine tests

* cargo fmt, update readme

cumulus/Cargo.lock

@@ -13529,6 +13529,32 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "statemine-it"
+version = "1.0.0"
+dependencies = [
+ "frame-support",
+ "frame-system",
+ "integration-tests-common",
+ "pallet-assets",
+ "pallet-balances",
+ "pallet-xcm",
+ "parachains-common",
+ "parity-scale-codec",
+ "penpal-runtime",
+ "polkadot-core-primitives",
+ "polkadot-parachain",
+ "polkadot-runtime",
+ "polkadot-runtime-parachains",
+ "sp-core",
+ "sp-runtime",
+ "sp-weights",
+ "statemine-runtime",
+ "xcm",
+ "xcm-emulator",
+ "xcm-executor",
+]
+
 [[package]]
 name = "statemine-runtime"
 version = "2.0.0"

cumulus/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",

cumulus/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" }

cumulus/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;

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

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

cumulus/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);
+}

cumulus/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);
+}

cumulus/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));
+	});
+}

cumulus/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: &AccountId| (k.clone(), ENDOWMENT))
-					.map(|k| (k, ED * 4096))
 					.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| {

cumulus/parachains/integration-tests/emulated/common/src/lib.rs

@@ -40,9 +40,9 @@ decl_test_relay_chains! {
 		runtime = {
 			Runtime: kusama_runtime::Runtime,
 			RuntimeOrigin: kusama_runtime::RuntimeOrigin,
-			RuntimeCall: polkadot_runtime::RuntimeCall,
+			RuntimeCall: kusama_runtime::RuntimeCall,
 			RuntimeEvent: kusama_runtime::RuntimeEvent,
-			MessageQueue: polkadot_runtime::MessageQueue,
+			MessageQueue: kusama_runtime::MessageQueue,
 			XcmConfig: kusama_runtime::xcm_config::XcmConfig,
 			SovereignAccountOf: kusama_runtime::xcm_config::SovereignAccountOf,
 			System: kusama_runtime::System,
@@ -83,7 +83,7 @@ decl_test_parachains! {
 		runtime = {
 			Runtime: penpal_runtime::Runtime,
 			RuntimeOrigin: penpal_runtime::RuntimeOrigin,
-			RuntimeCall: penpal_runtime::RuntimeEvent,
+			RuntimeCall: penpal_runtime::RuntimeCall,
 			RuntimeEvent: penpal_runtime::RuntimeEvent,
 			XcmpMessageHandler: penpal_runtime::XcmpQueue,
 			DmpMessageHandler: penpal_runtime::DmpQueue,
@@ -105,7 +105,7 @@ decl_test_parachains! {
 		runtime = {
 			Runtime: statemine_runtime::Runtime,
 			RuntimeOrigin: statemine_runtime::RuntimeOrigin,
-			RuntimeCall: statemine_runtime::RuntimeEvent,
+			RuntimeCall: statemine_runtime::RuntimeCall,
 			RuntimeEvent: statemine_runtime::RuntimeEvent,
 			XcmpMessageHandler: statemine_runtime::XcmpQueue,
 			DmpMessageHandler: statemine_runtime::DmpQueue,
@@ -127,7 +127,7 @@ decl_test_parachains! {
 		runtime = {
 			Runtime: penpal_runtime::Runtime,
 			RuntimeOrigin: penpal_runtime::RuntimeOrigin,
-			RuntimeCall: penpal_runtime::RuntimeEvent,
+			RuntimeCall: penpal_runtime::RuntimeCall,
 			RuntimeEvent: penpal_runtime::RuntimeEvent,
 			XcmpMessageHandler: penpal_runtime::XcmpQueue,
 			DmpMessageHandler: penpal_runtime::DmpQueue,
@@ -148,7 +148,7 @@ decl_test_parachains! {
 		runtime = {
 			Runtime: collectives_polkadot_runtime::Runtime,
 			RuntimeOrigin: collectives_polkadot_runtime::RuntimeOrigin,
-			RuntimeCall: collectives_polkadot_runtime::RuntimeEvent,
+			RuntimeCall: collectives_polkadot_runtime::RuntimeCall,
 			RuntimeEvent: collectives_polkadot_runtime::RuntimeEvent,
 			XcmpMessageHandler: collectives_polkadot_runtime::XcmpQueue,
 			DmpMessageHandler: collectives_polkadot_runtime::DmpQueue,
@@ -168,7 +168,7 @@ decl_test_parachains! {
 		runtime = {
 			Runtime: bridge_hub_kusama_runtime::Runtime,
 			RuntimeOrigin: bridge_hub_kusama_runtime::RuntimeOrigin,
-			RuntimeCall: bridge_hub_kusama_runtime::RuntimeEvent,
+			RuntimeCall: bridge_hub_kusama_runtime::RuntimeCall,
 			RuntimeEvent: bridge_hub_kusama_runtime::RuntimeEvent,
 			XcmpMessageHandler: bridge_hub_kusama_runtime::XcmpQueue,
 			DmpMessageHandler: bridge_hub_kusama_runtime::DmpQueue,
@@ -188,7 +188,7 @@ decl_test_parachains! {
 		runtime = {
 			Runtime: bridge_hub_polkadot_runtime::Runtime,
 			RuntimeOrigin: bridge_hub_polkadot_runtime::RuntimeOrigin,
-			RuntimeCall: bridge_hub_polkadot_runtime::RuntimeEvent,
+			RuntimeCall: bridge_hub_polkadot_runtime::RuntimeCall,
 			RuntimeEvent: bridge_hub_polkadot_runtime::RuntimeEvent,
 			XcmpMessageHandler: bridge_hub_polkadot_runtime::XcmpQueue,
 			DmpMessageHandler: bridge_hub_polkadot_runtime::DmpQueue,

cumulus/xcm/xcm-emulator/README.md

@@ -13,6 +13,9 @@ As the messages do not physically go through the same messaging infrastructure
 there is some code that is not being tested compared to using slower E2E tests.
 In future it may be possible to run these XCM emulated tests as E2E tests (without changes).
 
+As well as the XCM message transport being mocked out, so too are areas around consensus, 
+in particular things like disputes, staking and iamonline events can't be tested.
+
 ## Alternatives
 
 If you just wish to test execution of various XCM instructions