XCM v3 (#4097)

* cargo fmt

* Create benchmarks for XCM instructions introduced in v3 (#4564)

* Create benchmarks for BurnAsset and ExpectAsset

* Add benchmarks for ExpectOrigin and ExpectError

* Add benchmarks for QueryPallet and ExpectPallet

* Add benchmarks for ReportTransactStatus and ClearTransactStatus

* cargo fmt

* Use AllPalletsWithSystem in mocks

* Update XCM generic benchmarks for westend

* Remove default impls for some XCM weight functions

* Fix compilation error

* Add weight_args helper attribute

* Remove manually written XcmWeightInfo

* Parse trailing comma

* Revert "Add weight_args helper attribute"

This reverts commit 3b7c47a6182e1b9227036c38b406d494c3fcf6fd.

* Fixes

* Fixes

* XCM v3: Introduce querier field into `QueryReponse` (#4732)

* Introduce querier field into QueryReponse

* Convert &Option<MultiLocation> to Option<&MultiLocation>

&Option<T> is almost always never quite useful, most of the time it
still gets converted to an Option<&T> via `as_ref`, so we should simply
make functions that accept Option<&T> instead.

* Fix tests

* cargo fmt

* Fix benchmarks

* Appease spellchecker

* Fix test

* Fix tests

* Fix test

* Fix mock

* Fixes

* Fix tests

* Add test for response queriers

* Update xcm/pallet-xcm/src/lib.rs

* Test for non-existence of querier

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Fixes

* Fixes

* Add `starts_with` function to `MultiLocation` and `Junctions` (#4835)

* add matches_prefix function to MultiLocation and Junctions

* rename matches_prefix to starts_with

* remove unnecessary main in doc comment

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Make use of starts_with in match_and_split

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* XCM v3: Bridge infrastructure (#4681)

* XCM bridge infrastructure

* Missing bit of cherry-pick

* Revamped XCM proc macros; new NetworkIds

* Fixes

* Formatting

* ExportMessage instruction and config type

* Add MessageExporter definitions

* Formatting

* Missing files

* Fixes

* Initial bridging config API

* Allow for two-stage XCM execution

* Update xcm/src/v3/mod.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* XCM crate building again

* Initial bridging primitive

* Docs

* Docs

* More work

* More work

* Merge branch 'gav-xcm-v3' into gav-xcm-v3-bridging

* Make build

* WithComputedOrigin and SovereignPaidRemoteExporter

* Remove TODOs

* Slim bridge API and tests.

* Fixes

* More work

* First bridge test passing

* Formatting

* Another test

* Next round of bridging tests

* Repot tests

* Cleanups

* Paid bridging

* Formatting

* Tests

* Spelling

* Formatting

* Fees and refactoring

* Fixes

* Formatting

* Refactor SendXcm to become two-phase

* Fix tests

* Refactoring of SendXcm and ExportXcm complete

* Formatting

* Rename CannotReachDestination -> NotApplicable

* Remove XCM v0

* Minor grumbles

* Formatting

* Formatting

* Fixes

* Fixes

* Cleanup XCM config

* Fee handling

* Fixes

* Formatting

* Fixes

* Bump

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Bump Substrate

* XCM v3: `ExchangeAsset` and Remote-locking (#4945)

* Asset Exchange and Locks

* Make sure XCM typers impl MaxEncodedLen

* Basic implementation for locks

* Bump Substrate

* Missing files

* Use new API

* Introduce  instruction

* Big refactor

* Docs

* Remove deprecated struct

* Remove deprecated struct

* Repot XCM builder tests

* ExchangeAsset test

* Exchange tests

* Locking tests

* Locking tests

* Fixes and tests

* Fixes

* Formatting

* Spelling

* Add simulator test for remote locking

* Fix tests

* Bump

* XCM v3: Support for non-fungibles (#4950)

* NFT support and a test

* New files.

* Integration tests for sending NFTs

* Formatting

* Broken Cargo features

* Use 2021 edition

* Fixes

* Formatting

* Formatting

* Update xcm/xcm-builder/src/asset_conversion.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Update xcm/xcm-builder/src/nonfungibles_adapter.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Update xcm/xcm-executor/src/lib.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Fixes

* Fixes

* Fixes

* Formatting

* Fixes

Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* XCM v3: Context & ID hash (#4756)

* send_xcm returns message hash

* cargo fmt

* Create topic register and instructions

* Fix weights

* Use tabs

* Sketch out XcmContext

* Fix doc test

* Add the XCM context as a parameter to executor trait fns

* Fixes

* Add XcmContext parameter

* Revert adding context as an arg to SendXcm trait methods

* Revert adding context argument to ConvertOrigin trait methods

* cargo fmt

* Do not change the API of XcmExecutor::execute

* Fixes

* Fixes

* Fixes

* Fixes

* Remove convenience method

* Fixes

* Fixes

* cargo fmt

* Fixes

* Add benchmarks for XCM topic instructions

* cargo run --quiet --profile=production  --features=runtime-benchmarks -- benchmark --chain=westend-dev --steps=50 --repeat=20 --pallet=pallet_xcm_benchmarks::generic --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --template=./xcm/pallet-xcm-benchmarks/template.hbs --output=./runtime/westend/src/weights/xcm/pallet_xcm_benchmarks_generic.rs

* Remove context argument on FilterAssetLocation

* Fixes

* Remove unused import

* Fixes

* Fixes

* Fixes

* Accept XCM hash parameter in ExecuteXcm trait methods

* cargo fmt

* Properly enable sp-io/std

* Fixes

* default-features = false

* Fixes

* Fixes

* Fixes

* Make XcmContext optional in withdraw_asset

* Fixes

* Fixes

* Fixes

* Modify tests to check for the correct XCM hash

* Small refactor

* cargo fmt

* Check for expected hash in xcm-builder unit tests

* Add doc comment for the optionality of the XCM context in withdraw_asset

* Update xcm/src/v3/traits.rs

* Update xcm/src/v3/traits.rs

* Store XcmContext and avoid rebuilding

* Use ref for XcmContext

* Formatting

* Fix incorrect hash CC @KiChjang

* Refactor and make clear fake hashes

* Fixes

* Fixes

* Fixes

* Fix broken hashing

* Docs

* Fixes

* Fixes

* Fixes

* Formatting

* Fixes

* Fixes

* Fixes

* Remove unknowable hash

* Formatting

* Use message hash for greater identifiability

* Formatting

* Fixes

* Formatting

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: Parity Bot <admin@parity.io>

* Fixes

* Fixes

* Fixes

* Fixes

* Formatting

* Fixes

* Formatting

* Fixes

* Fixes

* Formatting

* Formatting

* Remove horrible names

* Bump

* Remove InvertLocation trait (#5092)

* Remove InvertLocation trait

* Remove unneeded functions

* Formatting

* Fixes

* Remove XCMv1 (#5094)

* Remove XCMv1

* Remove XCMv1

* Formatting

* Fixes

* Fixes

* Formatting

* derive serialize/deserialize for xcm primitives (#5036)

* derive serialize/deserialize for xcm primitives

* derive serialize/deserialize for xcm primitives

* update v3

* update v2

Co-authored-by: Gav Wood <gavin@parity.io>

* Update lock

* Fixes

* Add benchmarks for the ExchangeAsset instruction

* `AliasOrigin` instruction stub (#5122)

* AliasOrigin instruction stub

* Fixes

* Fixes

* Update substrate

* Fixes

* Ensure same array length before using copy_from_slice

* Fixes

* Add benchmarks for the UniversalOrigin instruction

* Remove unused import

* Remove unused import

* Add benchmarks for SetFeesMode instruction

* Add benchmarks for asset (un)locking instructions

* Leave AliasOrigin unbenchmarked

* Fixes after merge

* cargo fmt

* Fixes

* Fixes

* Set TrustedReserves to None on both Kusama and Westend

* Remove extraneous reserve_asset_deposited benchmark

* Fix universal_origin benchmark

* cargo run --quiet --profile=production  --features=runtime-benchmarks -- benchmark pallet --chain=westend-dev --steps=50 --repeat=20 --pallet=pallet_xcm_benchmarks::generic --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --template=./xcm/pallet-xcm-benchmarks/template.hbs --output=./runtime/westend/src/weights/xcm/pallet_xcm_benchmarks_generic.rs

* Don't rely on skipped benchmark functions

* Fixes

* cargo run --quiet --profile=production  --features=runtime-benchmarks -- benchmark pallet --chain=kusama-dev --steps=50 --repeat=20 --pallet=pallet_xcm_benchmarks::generic --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --header=./file_header.txt --template=./xcm/pallet-xcm-benchmarks/template.hbs --output=./runtime/kusama/src/weights/xcm/pallet_xcm_benchmarks_generic.rs

* Fix unused variables

* Fixes

* Spelling

* Fixes

* Fix codec index of VersionedXcm

* Allows to customize how calls are dispatched from XCM (#5657)

* CallDispatcher trait

* fmt

* unused import

* fix test-runtime

* remove JustDispatch type

* fix typo in test-runtime

* missing CallDispatcher

* more missing CallDispatcher

* Update comment `NoteAssetLocked` -> `NoteUnlockable`

* Fixes

* Fixes

* Adjust MultiAssets weights based on new wild card variants

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Some late fixes for XCMv3 (#5237)

* Maximise chances that trapped assets can be reclaimed

* Do origin check as part of ExportMessage for security

* Formatting

* Fixes

* Cleanup export XCM APIs

* Formatting

* Update xcm/src/v3/junctions.rs

* UnpaidExecution instruction and associated barrier.

* Tighten barriers (ClearOrigin/QueryResponse)

* Allow only 1 ClearOrigin instruction in AllowTopLevelPaidExecutionFrom

* Bi-directional teleport accounting

* Revert other fix

* Build fixes]

* Tests build

* Benchmark fixes

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

* Update Substrate

* Re-export `pub` stuff from universal_exports.rs + removed unecessary clone (#6145)

* Re-export `pub` stuff from universal_exports.rs

* Removed unnecessary clone

* Use 2D weights in XCM v3 (#6134)

* Depend upon sp-core instead of sp-runtime

* Make sp-io a dev-dependency

* Use 2D weights in XCM v3

* cargo fmt

* Add XCM pallet migration to runtimes

* Use from_parts

* cargo fmt

* Fixes

* cargo fmt

* Remove XCMWeight import

* Fixes

* Fixes

* Fixes

* Fixes

* Use translate in migration

* Increase max upward message size in tests

* Fix doc test

* Remove most uses of from_ref_time

* cargo fmt

* Fixes

* Fixes

* Add extrinsic benchmarking to XCM pallet

* cargo fmt

* Fixes

* Use old syntax

* cargo fmt

* Fixes

* Remove hardcoded weights

* Add XCM pallet to benchmarks

* Use successful origin

* Fix weird type parameter compilation issue

* Fixes

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime rococo-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime kusama-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_xcm

* Use benchmarked XCM pallet weights

* Fixes

* Fixes

* Use override instead of skip

* Fixes

* Fixes

* Fixes

* Fixes

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_xcm

* Fixes

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_xcm

Co-authored-by: command-bot <>

* Replace Weight::MAX with 100b weight units

* Add test to ensure all_gte in barriers is correct

* Update xcm/src/v3/junction.rs

Co-authored-by: asynchronous rob <rphmeier@gmail.com>

* Add more weight tests

* cargo fmt

* Create thread_local in XCM executor to limit recursion depth (#6304)

* Create thread_local in XCM executor to limit recursion depth

* Add unit test for recursion limit

* Fix statefulness in tests

* Remove panic

* Use defer and environmental macro

* Fix the implementation

* Use nicer interface

* Change ThisNetwork to AnyNetwork

* Move recursion check up to top level

* cargo fmt

* Update comment

Co-authored-by: Bastian Köcher <info@kchr.de>

* Add upper limit on the number of overweight messages in the queue (#6298)

* Add upper limit on the number of ovwerweight messages in the queue

* Add newline

* Introduce whitelist for Transact and limit UMP processing to 10 messages per block (#6280)

* Add SafeCallFilter to XcmConfig

* Limit UMP to receive 10 messages every block

* Place 10 message limit on processing instead of receiving

* Always increment the message_processed count whenever a message is processed

* Add as_derivative to the Transact whitelist

* cargo fmt

* Fixes

* Update xcm/xcm-builder/src/universal_exports.rs

Co-authored-by: Branislav Kontur <bkontur@gmail.com>

* Fixes

* Fixes

* Remove topic register and instead use the topic field in XcmContext

* Derive some common traits for DispatchBlobError

* Fixes

* cargo fmt

* Fixes

* Fixes

* Fix comments

* Fixes

* Introduce WithOriginFilter and apply it as the CallDispatcher for runtimes

* Fixes

* Appease clippy and fixes

* Fixes

* Fix more clippy issues

* Fixes

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_xcm

* Add benchmark function for ExportMessage

* Fix comment

* Add upper limit to DownwardMessageQueues size

* Add max size check for queue in can_queue_downward_message

* Fixes

* Make Transact runtime call configurable

* Return Weight::MAX when there is no successful send XCM origin

* Update substrate

* Fixes

* Fixes

* Remove ExportMessage benchmark

* Remove assertion on Transact instruction benchmark

* Make reachable destination configurable in XCM pallet benchmarks

* Fixes

* Fixes

* Remove cfg attribute in fuzzer

* Fixes

* Remove cfg attribute for XCM pallet in test runtime

* Fixes

* Use ReachableDest where possible

* Fixes

* Add benchmark for UnpaidExecution

* Update substrate

* Ensure benchmark functions pass filters

* Add runtime-benchmarks feature to fuzzer

* Ensure FixedRateOfFungible accounts for proof size weights

* cargo fmt

* Whitelist remark_with_event when runtime-benchmarks feature is enabled

* Use remark_with_event for Transact benchmarks

* Fix Cargo.lock

* Allow up to 3 DescendOrigin instructions before UnpaidExecution

* cargo fmt

* Edit code comment

* Check check_origin for unpaid execution privilege

* Fixes

* Small nits for xcm-v3 (#6408)

* Add possibility to skip benchmark for export_message

* ".git/.scripts/bench-bot.sh" xcm westend-dev pallet_xcm_benchmarks::generic

* Revert

* ".git/.scripts/bench-bot.sh" xcm westend-dev pallet_xcm_benchmarks::generic

* Add HaulBlobError to `fn haul_blob`

* ".git/.scripts/bench-bot.sh" xcm westend-dev pallet_xcm_benchmarks::generic

Co-authored-by: command-bot <>

* Revert changes to UnpaidExecution

* Change AllowUnpaidExecutionFrom to be explicit

* Fix log text

* cargo fmt

* Add benchmarks for XCM pallet version migration (#6448)

* Add benchmarks for XCM pallet version migration

* cargo fmt

* Fixes

* Fixes

* Fixes

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime kusama-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime rococo-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_xcm

* Fix benchmarks

* Fix benchmarks

* ".git/.scripts/bench-bot.sh" runtime westend-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime kusama-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime rococo-dev pallet_xcm

* ".git/.scripts/bench-bot.sh" runtime polkadot-dev pallet_xcm

Co-authored-by: command-bot <>

* Merge remote-tracking branch 'origin/master' into gav-xcm-v3

* Fixes

* Fix comments (#6470)

* Specify Ethereum networks by their chain id (#6286)

Co-authored-by: Squirrel <gilescope@gmail.com>

* Use  for Kusama

* Use WithComputedOrigin for Polkadot, Rococo and Westend

* Update lock

* Fix warning

* Update xcm/pallet-xcm/src/tests.rs

Co-authored-by: Squirrel <gilescope@gmail.com>

* Update runtime/parachains/src/ump/migration.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Update xcm/pallet-xcm/src/migration.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Fixes

* cargo fmt

* Typo

* Update xcm/src/v3/mod.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Docs

* Docs

* Docs

* Docs

* Docs

* Update xcm/src/v3/multiasset.rs

Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Add tests for MultiAssets::from_sorted_and_deduplicated

* Fail gracefully when same instance NFTs are detected during push

* Update Substrate to fix benchmarks

* Apply suggestions from code review

* Update runtime/kusama/src/xcm_config.rs

* Rename arguments

* Attempt to fix benchmark

* ".git/.scripts/commands/bench/bench.sh" runtime polkadot-dev runtime_parachains::ump

* Use actual weights for UMP pallet in Polkadot

* ".git/.scripts/commands/bench/bench.sh" runtime kusama-dev runtime_parachains::ump

* ".git/.scripts/commands/bench/bench.sh" runtime westend-dev runtime_parachains::ump

* ".git/.scripts/commands/bench/bench.sh" runtime rococo-dev runtime_parachains::ump

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>
Co-authored-by: Alexander Popiak <alexander.popiak@parity.io>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: Parity Bot <admin@parity.io>
Co-authored-by: stanly-johnson <stanlyjohnson@outlook.com>
Co-authored-by: nanocryk <6422796+nanocryk@users.noreply.github.com>
Co-authored-by: Branislav Kontur <bkontur@gmail.com>
Co-authored-by: asynchronous rob <rphmeier@gmail.com>
Co-authored-by: command-bot <>
Co-authored-by: Vincent Geddes <vincent.geddes@hey.com>
Co-authored-by: Squirrel <gilescope@gmail.com>
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

polkadot/xcm/xcm-builder/src/test_utils.rs

@@ -16,32 +16,43 @@
 
 // Shared test utilities and implementations for the XCM Builder.
 
-use frame_support::parameter_types;
+use frame_support::{
+	parameter_types,
+	traits::{Contains, CrateVersion, PalletInfoData, PalletsInfoAccess},
+};
 use sp_std::vec::Vec;
 pub use xcm::latest::{prelude::*, Weight};
 use xcm_executor::traits::{ClaimAssets, DropAssets, VersionChangeNotifier};
 pub use xcm_executor::{
-	traits::{ConvertOrigin, FilterAssetLocation, InvertLocation, OnResponse, TransactAsset},
+	traits::{
+		AssetExchange, AssetLock, ConvertOrigin, Enact, LockError, OnResponse, TransactAsset,
+	},
 	Assets, Config,
 };
 
 parameter_types! {
-	pub static SubscriptionRequests: Vec<(MultiLocation, Option<(QueryId, u64)>)> = vec![];
+	pub static SubscriptionRequests: Vec<(MultiLocation, Option<(QueryId, Weight)>)> = vec![];
+	pub static MaxAssetsIntoHolding: u32 = 4;
 }
 
 pub struct TestSubscriptionService;
 
 impl VersionChangeNotifier for TestSubscriptionService {
-	fn start(location: &MultiLocation, query_id: QueryId, max_weight: u64) -> XcmResult {
+	fn start(
+		location: &MultiLocation,
+		query_id: QueryId,
+		max_weight: Weight,
+		_context: &XcmContext,
+	) -> XcmResult {
 		let mut r = SubscriptionRequests::get();
-		r.push((location.clone(), Some((query_id, max_weight))));
+		r.push((*location, Some((query_id, max_weight))));
 		SubscriptionRequests::set(r);
 		Ok(())
 	}
-	fn stop(location: &MultiLocation) -> XcmResult {
+	fn stop(location: &MultiLocation, _context: &XcmContext) -> XcmResult {
 		let mut r = SubscriptionRequests::get();
 		r.retain(|(l, _q)| l != location);
-		r.push((location.clone(), None));
+		r.push((*location, None));
 		SubscriptionRequests::set(r);
 		Ok(())
 	}
@@ -58,16 +69,21 @@ parameter_types! {
 pub struct TestAssetTrap;
 
 impl DropAssets for TestAssetTrap {
-	fn drop_assets(origin: &MultiLocation, assets: Assets) -> Weight {
+	fn drop_assets(origin: &MultiLocation, assets: Assets, _context: &XcmContext) -> Weight {
 		let mut t: Vec<(MultiLocation, MultiAssets)> = TrappedAssets::get();
-		t.push((origin.clone(), assets.into()));
+		t.push((*origin, assets.into()));
 		TrappedAssets::set(t);
-		5
+		Weight::from_parts(5, 5)
 	}
 }
 
 impl ClaimAssets for TestAssetTrap {
-	fn claim_assets(origin: &MultiLocation, ticket: &MultiLocation, what: &MultiAssets) -> bool {
+	fn claim_assets(
+		origin: &MultiLocation,
+		ticket: &MultiLocation,
+		what: &MultiAssets,
+		_context: &XcmContext,
+	) -> bool {
 		let mut t: Vec<(MultiLocation, MultiAssets)> = TrappedAssets::get();
 		if let (0, X1(GeneralIndex(i))) = (ticket.parents, &ticket.interior) {
 			if let Some((l, a)) = t.get(*i as usize) {
@@ -81,3 +97,120 @@ impl ClaimAssets for TestAssetTrap {
 		false
 	}
 }
+
+pub struct TestAssetExchanger;
+
+impl AssetExchange for TestAssetExchanger {
+	fn exchange_asset(
+		_origin: Option<&MultiLocation>,
+		_give: Assets,
+		want: &MultiAssets,
+		_maximal: bool,
+	) -> Result<Assets, Assets> {
+		Ok(want.clone().into())
+	}
+}
+
+pub struct TestPalletsInfo;
+impl PalletsInfoAccess for TestPalletsInfo {
+	fn count() -> usize {
+		2
+	}
+	fn infos() -> Vec<PalletInfoData> {
+		vec![
+			PalletInfoData {
+				index: 0,
+				name: "System",
+				module_name: "pallet_system",
+				crate_version: CrateVersion { major: 1, minor: 10, patch: 1 },
+			},
+			PalletInfoData {
+				index: 1,
+				name: "Balances",
+				module_name: "pallet_balances",
+				crate_version: CrateVersion { major: 1, minor: 42, patch: 69 },
+			},
+		]
+	}
+}
+
+pub struct TestUniversalAliases;
+impl Contains<(MultiLocation, Junction)> for TestUniversalAliases {
+	fn contains(aliases: &(MultiLocation, Junction)) -> bool {
+		&aliases.0 == &Here.into_location() && &aliases.1 == &GlobalConsensus(ByGenesis([0; 32]))
+	}
+}
+
+parameter_types! {
+	pub static LockedAssets: Vec<(MultiLocation, MultiAsset)> = vec![];
+}
+
+pub struct TestLockTicket(MultiLocation, MultiAsset);
+impl Enact for TestLockTicket {
+	fn enact(self) -> Result<(), LockError> {
+		let mut locked_assets = LockedAssets::get();
+		locked_assets.push((self.0, self.1));
+		LockedAssets::set(locked_assets);
+		Ok(())
+	}
+}
+pub struct TestUnlockTicket(MultiLocation, MultiAsset);
+impl Enact for TestUnlockTicket {
+	fn enact(self) -> Result<(), LockError> {
+		let mut locked_assets = LockedAssets::get();
+		if let Some((idx, _)) = locked_assets
+			.iter()
+			.enumerate()
+			.find(|(_, (origin, asset))| origin == &self.0 && asset == &self.1)
+		{
+			locked_assets.remove(idx);
+		}
+		LockedAssets::set(locked_assets);
+		Ok(())
+	}
+}
+pub struct TestReduceTicket;
+impl Enact for TestReduceTicket {
+	fn enact(self) -> Result<(), LockError> {
+		Ok(())
+	}
+}
+
+pub struct TestAssetLocker;
+impl AssetLock for TestAssetLocker {
+	type LockTicket = TestLockTicket;
+	type UnlockTicket = TestUnlockTicket;
+	type ReduceTicket = TestReduceTicket;
+
+	fn prepare_lock(
+		unlocker: MultiLocation,
+		asset: MultiAsset,
+		_owner: MultiLocation,
+	) -> Result<TestLockTicket, LockError> {
+		Ok(TestLockTicket(unlocker, asset))
+	}
+
+	fn prepare_unlock(
+		unlocker: MultiLocation,
+		asset: MultiAsset,
+		_owner: MultiLocation,
+	) -> Result<TestUnlockTicket, LockError> {
+		Ok(TestUnlockTicket(unlocker, asset))
+	}
+
+	fn note_unlockable(
+		_locker: MultiLocation,
+		_asset: MultiAsset,
+		_owner: MultiLocation,
+	) -> Result<(), LockError> {
+		Ok(())
+	}
+
+	fn prepare_reduce_unlockable(
+		_locker: MultiLocation,
+		_asset: MultiAsset,
+		_owner: MultiLocation,
+	) -> Result<TestReduceTicket, LockError> {
+		Ok(TestReduceTicket)
+	}
+}