Integrate XCM Simulator with LAOS Runtime and Add Comprehensive Tests

Cargo.toml

@@ -3,6 +3,7 @@ description = "The LAOS parachain node."
 repository = "https://github.com/freeverseio/laos.git"
 homepage = "https://www.laosfoundation.io"
 authors = ["Freeverse"]
+edition = "2021"
 version = "0.22.0"
 
 [workspace]
@@ -14,6 +15,7 @@ members = [
    "pallets/*",
    "precompiles/*",
    "primitives",
+   "xcm-simulator"
 ]
 
 [workspace.dependencies]
@@ -59,6 +61,7 @@ sp-state-machine = { git = "https://github.com/paritytech/polkadot-sdk", branch
 sp-consensus-slots = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 sp-weights ={ git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 sp-genesis-builder ={ git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
+sp-tracing ={ git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 
 # (native)
 sp-blockchain = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0" }
@@ -123,6 +126,7 @@ pallet-membership = { git = "https://github.com/paritytech/polkadot-sdk", branch
 pallet-transaction-payment = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 pallet-preimage = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
+pallet-uniques = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 pallet-vesting = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 pallet-proxy = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 frame-benchmarking = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
@@ -207,20 +211,12 @@ cumulus-pallet-xcm = { git = "https://github.com/paritytech/polkadot-sdk", branc
 xcm = { package = "staging-xcm", git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 xcm-builder = { package = "staging-xcm-builder", git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 xcm-executor = { package = "staging-xcm-executor", git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
+xcm-simulator = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0", default-features = false }
 
 # (native)
 polkadot-cli = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0" }
 polkadot-service = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.11.0" }
 
-# Orml
-# (wasm)
-# TODO This code has been commented out when upgrading polkadot-sdk from v1.1.0 to 1.6.0
-# because conflicts with orml-trait crate and currently XCM is not used. It should be
-# uncommented and fixed when XCM is used in the runtime.
-# orml-traits = { version = "0.7.0", default-features = false }
-# orml-xcm-support = { version = "0.7.0", default-features = false }
-# orml-xtokens = { version = "0.7.0", default-features = false }
-
 # Other pallets
 # (wasm)
 substrate-fixed = { git = "https://github.com/encointer/substrate-fixed", default-features = false }

primitives/Cargo.toml

@@ -29,4 +29,5 @@ std = [
 	"fp-account/std",
 	"sp-consensus-aura/std",
 	"cumulus-primitives-core/std",
+	"parachains-common/std"
 ]

runtime/laos/Cargo.toml

@@ -114,12 +114,6 @@ precompile-utils = { workspace = true }
 [dev-dependencies]
 precompile-utils = { workspace = true, features = ["testing"] }
 evm = { workspace = true }
-# TODO This code has been commented out when upgrading polkadot-sdk from v1.1.0 to 1.6.0
-# because conflicts with orml-trait crate and currently XCM is not used. It should be
-# uncommented and fixed when XCM is used in the runtime.
-# orml-traits = { workspace = true }
-# orml-xtokens = { workspace = true, features = ["std"] }
-# orml-xcm-support = { workspace = true, features = ["std"] }
 polkadot-runtime-parachains = { workspace = true }
 pallet-assets = { workspace = true }
 test-utils = { workspace = true }

xcm-simulator/Cargo.toml

@@ -0,0 +1,74 @@
+[package]
+name = "xcm-simulator-example"
+description = "Examples of xcm-simulator usage."
+authors.workspace = true
+edition.workspace = true
+version = "7.0.0"
+
+[dependencies]
+parity-scale-codec = { workspace = true }
+scale-info = { workspace = true }
+log = { workspace = true }
+hex-literal = { workspace = true }
+
+frame-system = { workspace = true }
+frame-support = { workspace = true }
+pallet-balances = { workspace = true, features = ["insecure_zero_ed"] }
+pallet-message-queue = { workspace = true }
+pallet-uniques = { workspace = true }
+sp-std = { workspace = true }
+sp-core = { workspace = true }
+sp-runtime = { workspace = true }
+sp-io = { workspace = true }
+sp-tracing = { workspace = true }
+
+xcm = { workspace = true }
+xcm-simulator = { workspace = true }
+xcm-executor = { workspace = true }
+xcm-builder = { workspace = true }
+pallet-xcm = { workspace = true }
+polkadot-core-primitives = { workspace = true }
+polkadot-runtime-parachains = { workspace = true }
+polkadot-parachain-primitives = { workspace = true }
+laos-primitives = { workspace = true }
+parachain-info = { workspace = true }
+cumulus-pallet-xcm = { workspace = true }
+
+
+[features]
+default = ["std"]
+std = [
+    "cumulus-pallet-xcm/std",
+	"parachain-info/std",
+	"laos-primitives/std",
+    "frame-system/std",
+    "frame-support/std",
+    "pallet-balances/std",
+    "pallet-message-queue/std",
+    "pallet-uniques/std",
+    "sp-std/std",
+    "sp-core/std",
+    "sp-runtime/std",
+    "sp-io/std",
+    "sp-tracing/std",
+    "xcm/std",
+    "xcm-executor/std",
+    "xcm-builder/std",
+    "pallet-xcm/std",
+    "polkadot-core-primitives/std",
+    "polkadot-runtime-parachains/std",
+    "polkadot-parachain-primitives/std"
+]
+runtime-benchmarks = [
+	"frame-support/runtime-benchmarks",
+	"frame-system/runtime-benchmarks",
+	"pallet-balances/runtime-benchmarks",
+	"pallet-message-queue/runtime-benchmarks",
+	"pallet-uniques/runtime-benchmarks",
+	"pallet-xcm/runtime-benchmarks",
+	"polkadot-parachain-primitives/runtime-benchmarks",
+	"polkadot-runtime-parachains/runtime-benchmarks",
+	"sp-runtime/runtime-benchmarks",
+	"xcm-builder/runtime-benchmarks",
+	"xcm-executor/runtime-benchmarks",
+]

xcm-simulator/src/laosish/configs/balances.rs

@@ -0,0 +1,51 @@
+// Copyright 2023-2024 Freeverse.io
+// This file is part of LAOS.
+
+// LAOS is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// LAOS is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with LAOS.  If not, see <http://www.gnu.org/licenses/>.
+
+use crate::laosish::{
+	Balance, Runtime, RuntimeEvent, RuntimeFreezeReason, RuntimeHoldReason, System,
+};
+use frame_support::parameter_types;
+
+parameter_types! {
+	/// The minimum amount required to keep an account open, set to zero in this case.
+	///
+	/// While it's generally advised to have this value greater than zero to avoid potential
+	/// DoS vectors, we set it to zero here due to specific concerns about relay attacks.
+	/// In such attacks, the reset of the nonce upon account deletion can be exploited.
+	/// By setting the ExistentialDeposit to zero, we prevent the scenario where an account's
+	/// balance drops to a level that would trigger its deletion and subsequent nonce reset.
+	pub const ExistentialDeposit: Balance = 0;
+	pub const MaxLocks: u32 = 50;
+	pub const MaxFreezes: u32 = 50;
+	pub const MaxHolds: u32 = 50;
+	pub const MaxReserves: u32 = 50;
+}
+
+impl pallet_balances::Config for Runtime {
+	type MaxLocks = MaxLocks;
+	type Balance = Balance;
+	type RuntimeEvent = RuntimeEvent;
+	type DustRemoval = ();
+	type ExistentialDeposit = ExistentialDeposit;
+	type AccountStore = System;
+	type MaxReserves = MaxReserves;
+	type ReserveIdentifier = [u8; 8];
+	type FreezeIdentifier = RuntimeFreezeReason;
+	type RuntimeFreezeReason = RuntimeFreezeReason;
+	type RuntimeHoldReason = RuntimeHoldReason;
+	type MaxFreezes = MaxFreezes;
+	type WeightInfo = pallet_balances::weights::SubstrateWeight<Runtime>; // See: https://github.com/freeverseio/laos/pull/533#issuecomment-2034913428
+}

xcm-simulator/src/laosish/configs/mod.rs

@@ -0,0 +1,7 @@
+mod balances;
+mod system;
+pub mod xcm_config;
+
+use crate::laosish::Runtime;
+
+impl parachain_info::Config for Runtime {}

xcm-simulator/src/laosish/configs/system.rs

@@ -0,0 +1,82 @@
+// Copyright 2023-2024 Freeverse.io
+// This file is part of LAOS.
+
+// LAOS is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// LAOS is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with LAOS.  If not, see <http://www.gnu.org/licenses/>.
+
+use crate::laosish::{
+	AccountId, Balance, Block, PalletInfo, Runtime, RuntimeCall, RuntimeEvent, RuntimeOrigin,
+	RuntimeTask,
+};
+use frame_support::{parameter_types, traits::Everything};
+use sp_runtime::traits::{BlakeTwo256, IdentityLookup};
+
+parameter_types! {
+	pub const SS58Prefix: u16 = 42;
+	pub const BlockHashCount: u32 = 256;
+}
+
+impl frame_system::Config for Runtime {
+	/// The identifier used to distinguish between accounts.
+	type AccountId = AccountId;
+	/// The aggregated dispatch type that is available for extrinsics.
+	type RuntimeCall = RuntimeCall;
+	/// The lookup mechanism to get account ID from whatever is passed in dispatchers.
+	type Lookup = IdentityLookup<AccountId>;
+	/// The block type
+	type Block = Block;
+	/// The type for hashing blocks and tries.
+	type Hash = laos_primitives::Hash;
+	/// The type for storing how many extrinsics an account has signed.
+	type Nonce = laos_primitives::Nonce;
+	/// The hashing algorithm used.
+	type Hashing = BlakeTwo256;
+	/// The ubiquitous event type.
+	type RuntimeEvent = RuntimeEvent;
+	/// The ubiquitous origin type.
+	type RuntimeOrigin = RuntimeOrigin;
+	/// The aggregated RuntimeTask type.
+	type RuntimeTask = RuntimeTask;
+	/// Maximum number of block number to block hash mappings to keep (oldest pruned first).
+	type BlockHashCount = BlockHashCount;
+	/// Runtime version.
+	type Version = ();
+	/// Converts a module to an index of this module in the runtime.
+	type PalletInfo = PalletInfo;
+	/// The data to be stored in an account.
+	type AccountData = pallet_balances::AccountData<Balance>;
+	/// What to do if a new account is created.
+	type OnNewAccount = ();
+	/// What to do if an account is fully reaped from the system.
+	type OnKilledAccount = ();
+	/// The weight of database operations that the runtime can invoke.
+	type DbWeight = ();
+	/// The basic call filter to use in dispatchable.
+	type BaseCallFilter = Everything;
+	/// Weight information for the extrinsics of this pallet.
+	type SystemWeightInfo = ();
+	/// Block & extrinsics weights: base values and limits.
+	type BlockWeights = laos_primitives::RuntimeBlockWeights;
+	/// The maximum length of a block (in bytes).
+	type BlockLength = laos_primitives::RuntimeBlockLength;
+	/// This is used as an identifier of the chain. 42 is the generic substrate prefix.
+	type SS58Prefix = SS58Prefix;
+	/// The action to take on a Runtime Upgrade
+	type OnSetCode = ();
+	type MaxConsumers = frame_support::traits::ConstU32<16>;
+	type SingleBlockMigrations = ();
+	type MultiBlockMigrator = ();
+	type PreInherents = ();
+	type PostInherents = ();
+	type PostTransactions = ();
+}