[testnets][xcm-emulator] add bridge-hub-westend and hook it up to emu…

…lator (#2204)

`bridge-hub-westend-runtime` was added to cumulus/parachains, but wasn't
hooked up to xcm-emulator to run tests against it.

This commit addresses that ^.

Signed-off-by: Adrian Catangiu <adrian@parity.io>

Cargo.toml

@@ -68,6 +68,7 @@ members = [
 	"cumulus/parachains/integration-tests/emulated/assets/asset-hub-rococo",
 	"cumulus/parachains/integration-tests/emulated/assets/asset-hub-westend",
 	"cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-rococo",
+	"cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-westend",
 	"cumulus/parachains/integration-tests/emulated/common",
 	"cumulus/parachains/pallets/collective-content",
 	"cumulus/parachains/pallets/parachain-info",

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-westend/Cargo.toml

@@ -0,0 +1,41 @@
+[package]
+name = "bridge-hub-westend-integration-tests"
+version = "1.0.0"
+authors.workspace = true
+edition.workspace = true
+license = "Apache-2.0"
+description = "Bridge Hub Westend runtime integration tests with xcm-emulator"
+publish = false
+
+[dependencies]
+codec = { package = "parity-scale-codec", version = "3.4.0", default-features = false }
+
+# Substrate
+frame-support = { path = "../../../../../../substrate/frame/support", default-features = false}
+frame-system = { path = "../../../../../../substrate/frame/system", default-features = false}
+sp-core = { path = "../../../../../../substrate/primitives/core", default-features = false}
+sp-weights = { path = "../../../../../../substrate/primitives/weights", default-features = false}
+pallet-balances = { path = "../../../../../../substrate/frame/balances", default-features = false}
+pallet-assets = { path = "../../../../../../substrate/frame/assets", default-features = false}
+pallet-message-queue = { path = "../../../../../../substrate/frame/message-queue", default-features = false }
+
+# Polkadot
+polkadot-core-primitives = { path = "../../../../../../polkadot/core-primitives", default-features = false}
+polkadot-parachain-primitives = { path = "../../../../../../polkadot/parachain", default-features = false}
+polkadot-runtime-parachains = { path = "../../../../../../polkadot/runtime/parachains" }
+xcm = { package = "staging-xcm", path = "../../../../../../polkadot/xcm", default-features = false}
+pallet-xcm = { path = "../../../../../../polkadot/xcm/pallet-xcm", default-features = false}
+xcm-executor = { package = "staging-xcm-executor",  path = "../../../../../../polkadot/xcm/xcm-executor", default-features = false}
+
+# Cumulus
+asset-test-utils = { path = "../../../../../parachains/runtimes/assets/test-utils", default-features = false }
+parachains-common = { path = "../../../../common" }
+cumulus-pallet-xcmp-queue = { path = "../../../../../pallets/xcmp-queue", default-features = false}
+cumulus-pallet-dmp-queue = { path = "../../../../../pallets/dmp-queue", default-features = false}
+pallet-bridge-messages = { path = "../../../../../../bridges/modules/messages", default-features = false}
+bp-messages = { path = "../../../../../../bridges/primitives/messages", default-features = false}
+bridge-hub-westend-runtime = { path = "../../../../../parachains/runtimes/bridge-hubs/bridge-hub-westend", default-features = false }
+
+# Local
+xcm-emulator = { path = "../../../../../xcm/xcm-emulator", default-features = false}
+integration-tests-common = { path = "../../common", default-features = false}

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-westend/src/lib.rs

@@ -0,0 +1,67 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub use bp_messages::LaneId;
+pub use frame_support::assert_ok;
+pub use integration_tests_common::{
+	constants::{
+		bridge_hub_westend::ED as BRIDGE_HUB_WESTEND_ED, westend::ED as WESTEND_ED,
+		PROOF_SIZE_THRESHOLD, REF_TIME_THRESHOLD, XCM_V3,
+	},
+	test_parachain_is_trusted_teleporter,
+	xcm_helpers::{xcm_transact_paid_execution, xcm_transact_unpaid_execution},
+	AssetHubRococo, AssetHubWestend, AssetHubWestendReceiver, BridgeHubRococo, BridgeHubWestend,
+	BridgeHubWestendPallet, BridgeHubWestendSender, PenpalWestendA, Westend, WestendPallet,
+};
+pub use parachains_common::{AccountId, Balance};
+pub use xcm::{
+	prelude::{AccountId32 as AccountId32Junction, *},
+	v3::{
+		Error,
+		NetworkId::{Rococo as RococoId, Westend as WestendId},
+	},
+};
+pub use xcm_emulator::{
+	assert_expected_events, bx, helpers::weight_within_threshold, Chain, Parachain as Para,
+	RelayChain as Relay, Test, TestArgs, TestContext, TestExt,
+};
+
+pub const ASSET_ID: u32 = 1;
+pub const ASSET_MIN_BALANCE: u128 = 1000;
+pub const ASSETS_PALLET_ID: u8 = 50;
+
+pub type RelayToSystemParaTest = Test<Westend, AssetHubWestend>;
+pub type SystemParaToRelayTest = Test<AssetHubWestend, Westend>;
+pub type SystemParaToParaTest = Test<AssetHubWestend, PenpalWestendA>;
+
+/// Returns a `TestArgs` instance to de used for the Relay Chain accross integraton tests
+pub fn relay_test_args(amount: Balance) -> TestArgs {
+	TestArgs {
+		dest: Westend::child_location_of(AssetHubWestend::para_id()),
+		beneficiary: AccountId32Junction {
+			network: None,
+			id: AssetHubWestendReceiver::get().into(),
+		}
+		.into(),
+		amount,
+		assets: (Here, amount).into(),
+		asset_id: None,
+		fee_asset_item: 0,
+		weight_limit: WeightLimit::Unlimited,
+	}
+}
+
+#[cfg(test)]
+mod tests;

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-westend/src/tests/example.rs

@@ -0,0 +1,74 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::*;
+
+#[test]
+fn example() {
+	// Init tests variables
+	// XcmPallet send arguments
+	let sudo_origin = <Westend as Chain>::RuntimeOrigin::root();
+	let destination = Westend::child_location_of(BridgeHubWestend::para_id()).into();
+	let weight_limit = WeightLimit::Unlimited;
+	let check_origin = None;
+
+	let remote_xcm = Xcm(vec![ClearOrigin]);
+
+	let xcm = VersionedXcm::from(Xcm(vec![
+		UnpaidExecution { weight_limit, check_origin },
+		ExportMessage {
+			network: RococoId,
+			destination: X1(Parachain(AssetHubRococo::para_id().into())),
+			xcm: remote_xcm,
+		},
+	]));
+
+	// Westend Global Consensus
+	// Send XCM message from Relay Chain to Bridge Hub source Parachain
+	Westend::execute_with(|| {
+		assert_ok!(<Westend as WestendPallet>::XcmPallet::send(
+			sudo_origin,
+			bx!(destination),
+			bx!(xcm),
+		));
+
+		type RuntimeEvent = <Westend as Chain>::RuntimeEvent;
+
+		assert_expected_events!(
+			Westend,
+			vec![
+				RuntimeEvent::XcmPallet(pallet_xcm::Event::Sent { .. }) => {},
+			]
+		);
+	});
+	// Receive XCM message in Bridge Hub source Parachain
+	BridgeHubWestend::execute_with(|| {
+		type RuntimeEvent = <BridgeHubWestend as Chain>::RuntimeEvent;
+
+		assert_expected_events!(
+			BridgeHubWestend,
+			vec![
+				RuntimeEvent::MessageQueue(pallet_message_queue::Event::Processed {
+					success: true,
+					..
+				}) => {},
+				RuntimeEvent::BridgeRococoMessages(pallet_bridge_messages::Event::MessageAccepted {
+					lane_id: LaneId([0, 0, 0, 2]),
+					nonce: 1,
+				}) => {},
+			]
+		);
+	});
+}

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-westend/src/tests/mod.rs

@@ -0,0 +1,17 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+mod example;
+mod teleport;

cumulus/parachains/integration-tests/emulated/bridges/bridge-hub-westend/src/tests/teleport.rs

@@ -0,0 +1,30 @@
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use crate::*;
+use bridge_hub_westend_runtime::xcm_config::XcmConfig;
+
+#[test]
+fn teleport_to_other_system_parachains_works() {
+	let amount = BRIDGE_HUB_WESTEND_ED * 100;
+	let native_asset: MultiAssets = (Parent, amount).into();
+
+	test_parachain_is_trusted_teleporter!(
+		BridgeHubWestend,      // Origin
+		XcmConfig,             // XCM configuration
+		vec![AssetHubWestend], // Destinations
+		(native_asset, amount)
+	);
+}

cumulus/parachains/integration-tests/emulated/common/Cargo.toml

@@ -52,6 +52,7 @@ collectives-polkadot-runtime = { path = "../../../runtimes/collectives/collectiv
 bridge-hub-kusama-runtime = { path = "../../../runtimes/bridge-hubs/bridge-hub-kusama" }
 bridge-hub-polkadot-runtime = { path = "../../../runtimes/bridge-hubs/bridge-hub-polkadot" }
 bridge-hub-rococo-runtime = { path = "../../../runtimes/bridge-hubs/bridge-hub-rococo" }
+bridge-hub-westend-runtime = { path = "../../../runtimes/bridge-hubs/bridge-hub-westend" }
 xcm-emulator = { default-features = false, path = "../../../../xcm/xcm-emulator" }
 cumulus-pallet-xcmp-queue = { default-features = false, path = "../../../../pallets/xcmp-queue" }
 cumulus-pallet-parachain-system = { path = "../../../../pallets/parachain-system" }
@@ -68,6 +69,7 @@ runtime-benchmarks = [
 	"bridge-hub-kusama-runtime/runtime-benchmarks",
 	"bridge-hub-polkadot-runtime/runtime-benchmarks",
 	"bridge-hub-rococo-runtime/runtime-benchmarks",
+	"bridge-hub-westend-runtime/runtime-benchmarks",
 	"bridge-runtime-common/runtime-benchmarks",
 	"collectives-polkadot-runtime/runtime-benchmarks",
 	"cumulus-pallet-parachain-system/runtime-benchmarks",

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

@@ -1160,3 +1160,60 @@ pub mod bridge_hub_rococo {
 		}
 	}
 }
+
+// Bridge Hub Westend
+pub mod bridge_hub_westend {
+	use super::*;
+	pub const PARA_ID: u32 = 1013;
+	pub const ED: Balance = parachains_common::westend::currency::EXISTENTIAL_DEPOSIT;
+
+	pub fn genesis() -> Storage {
+		let genesis_config = serde_json::json!({
+			"balances": {
+				"balances": accounts::init_balances()
+					.iter()
+					.cloned()
+					.map(|k| (k, ED * 4096))
+					.collect::<Vec<_>>(),
+			},
+			"parachainInfo": {
+				"parachainId": cumulus_primitives_core::ParaId::from(PARA_ID),
+			},
+			"collatorSelection": {
+				"invulnerables": collators::invulnerables()
+					.iter()
+					.cloned()
+					.map(|(acc, _)| acc)
+					.collect::<Vec<_>>(),
+				"candidacyBond": ED * 16,
+			},
+			"session": {
+				"keys": collators::invulnerables()
+					.into_iter()
+					.map(|(acc, aura)| {
+						(
+							acc.clone(),                                     // account id
+							acc,                                             // validator id
+							bridge_hub_westend_runtime::SessionKeys { aura }, // session keys
+						)
+					})
+					.collect::<Vec<_>>(),
+			},
+			"polkadotXcm": {
+				"safeXcmVersion": Some(SAFE_XCM_VERSION),
+			},
+			"bridgeRococoGrandpa": {
+				"owner": Some(get_account_id_from_seed::<sr25519::Public>(accounts::BOB)),
+			},
+			"bridgeRococoMessages": {
+				"owner": Some(get_account_id_from_seed::<sr25519::Public>(accounts::BOB)),
+			}
+		});
+
+		build_genesis_storage(
+			genesis_config,
+			bridge_hub_westend_runtime::WASM_BINARY
+				.expect("WASM binary was not built, please build it!"),
+		)
+	}
+}