feat: Rebrand Polkadot/Substrate references to PezkuwiChain

This commit systematically rebrands various references from Parity Technologies'
Polkadot/Substrate ecosystem to PezkuwiChain within the kurdistan-sdk.

Key changes include:
- Updated external repository URLs (zombienet-sdk, parity-db, parity-scale-codec, wasm-instrument) to point to pezkuwichain forks.
- Modified internal documentation and code comments to reflect PezkuwiChain naming and structure.
- Replaced direct references to  with  or specific paths within the  for XCM, Pezkuwi, and other modules.
- Cleaned up deprecated  issue and PR references in various  and  files, particularly in  and  modules.
- Adjusted image and logo URLs in documentation to point to PezkuwiChain assets.
- Removed or rephrased comments related to external Polkadot/Substrate PRs and issues.

This is a significant step towards fully customizing the SDK for the PezkuwiChain ecosystem.

bizinikiwi/pezframe/assets-freezer/Cargo.toml

@@ -0,0 +1,46 @@
+[package]
+name = "pezpallet-assets-freezer"
+version = "0.1.0"
+authors.workspace = true
+edition.workspace = true
+license = "MIT-0"
+homepage.workspace = true
+repository.workspace = true
+description = "Provides freezing features to `pezpallet-assets`"
+
+[lints]
+workspace = true
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+
+[dependencies]
+codec = { workspace = true }
+frame = { workspace = true, features = ["runtime"] }
+log = { workspace = true }
+pezpallet-assets = { workspace = true }
+scale-info = { features = ["derive"], workspace = true }
+
+[dev-dependencies]
+pezpallet-balances = { workspace = true }
+
+[features]
+default = ["std"]
+std = [
+	"codec/std",
+	"frame/std",
+	"log/std",
+	"pezpallet-assets/std",
+	"pezpallet-balances/std",
+	"scale-info/std",
+]
+runtime-benchmarks = [
+	"frame/runtime-benchmarks",
+	"pezpallet-assets/runtime-benchmarks",
+	"pezpallet-balances/runtime-benchmarks",
+]
+try-runtime = [
+	"frame/try-runtime",
+	"pezpallet-assets/try-runtime",
+	"pezpallet-balances/try-runtime",
+]

bizinikiwi/pezframe/assets-freezer/src/impls.rs

@@ -0,0 +1,172 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: MIT-0
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+use super::*;
+use frame::prelude::storage::StorageDoubleMap;
+use pezpallet_assets::FrozenBalance;
+
+// Implements [`FrozenBalance`] from [`pezpallet-assets`], so it can understand how much of an
+// account balance is frozen, and is able to signal to this pallet when to clear the state of an
+// account.
+impl<T: Config<I>, I: 'static> FrozenBalance<T::AssetId, T::AccountId, T::Balance>
+	for Pallet<T, I>
+{
+	fn frozen_balance(asset: T::AssetId, who: &T::AccountId) -> Option<T::Balance> {
+		FrozenBalances::<T, I>::get(asset, who)
+	}
+
+	fn died(asset: T::AssetId, who: &T::AccountId) {
+		defensive_assert!(
+			Freezes::<T, I>::get(asset.clone(), who).is_empty(),
+			"The list of Freezes should be empty before allowing an account to die"
+		);
+		defensive_assert!(
+			FrozenBalances::<T, I>::get(asset.clone(), who).is_none(),
+			"There should not be a frozen balance before allowing to die"
+		);
+
+		FrozenBalances::<T, I>::remove(asset.clone(), who);
+		Freezes::<T, I>::remove(asset, who);
+	}
+
+	fn contains_freezes(asset: T::AssetId) -> bool {
+		Freezes::<T, I>::contains_prefix(asset)
+	}
+}
+
+// Implement [`fungibles::Inspect`](pezframe_support::traits::fungibles::Inspect) as it is bound by
+// [`fungibles::InspectFreeze`](pezframe_support::traits::fungibles::InspectFreeze) and
+// [`fungibles::MutateFreeze`](pezframe_support::traits::fungibles::MutateFreeze). To do so, we'll
+// re-export all of `pezpallet-assets` implementation of the same trait.
+impl<T: Config<I>, I: 'static> Inspect<T::AccountId> for Pallet<T, I> {
+	type AssetId = T::AssetId;
+	type Balance = T::Balance;
+
+	fn total_issuance(asset: Self::AssetId) -> Self::Balance {
+		pezpallet_assets::Pallet::<T, I>::total_issuance(asset)
+	}
+
+	fn minimum_balance(asset: Self::AssetId) -> Self::Balance {
+		pezpallet_assets::Pallet::<T, I>::minimum_balance(asset)
+	}
+
+	fn total_balance(asset: Self::AssetId, who: &T::AccountId) -> Self::Balance {
+		pezpallet_assets::Pallet::<T, I>::total_balance(asset, who)
+	}
+
+	fn balance(asset: Self::AssetId, who: &T::AccountId) -> Self::Balance {
+		pezpallet_assets::Pallet::<T, I>::balance(asset, who)
+	}
+
+	fn reducible_balance(
+		asset: Self::AssetId,
+		who: &T::AccountId,
+		preservation: Preservation,
+		force: Fortitude,
+	) -> Self::Balance {
+		pezpallet_assets::Pallet::<T, I>::reducible_balance(asset, who, preservation, force)
+	}
+
+	fn can_deposit(
+		asset: Self::AssetId,
+		who: &T::AccountId,
+		amount: Self::Balance,
+		provenance: Provenance,
+	) -> DepositConsequence {
+		pezpallet_assets::Pallet::<T, I>::can_deposit(asset, who, amount, provenance)
+	}
+
+	fn can_withdraw(
+		asset: Self::AssetId,
+		who: &T::AccountId,
+		amount: Self::Balance,
+	) -> WithdrawConsequence<Self::Balance> {
+		pezpallet_assets::Pallet::<T, I>::can_withdraw(asset, who, amount)
+	}
+
+	fn asset_exists(asset: Self::AssetId) -> bool {
+		pezpallet_assets::Pallet::<T, I>::asset_exists(asset)
+	}
+}
+
+impl<T: Config<I>, I: 'static> InspectFreeze<T::AccountId> for Pallet<T, I> {
+	type Id = T::RuntimeFreezeReason;
+
+	fn balance_frozen(asset: Self::AssetId, id: &Self::Id, who: &T::AccountId) -> Self::Balance {
+		let freezes = Freezes::<T, I>::get(asset, who);
+		freezes.into_iter().find(|l| &l.id == id).map_or(Zero::zero(), |l| l.amount)
+	}
+
+	fn can_freeze(asset: Self::AssetId, id: &Self::Id, who: &T::AccountId) -> bool {
+		let freezes = Freezes::<T, I>::get(asset, who);
+		!freezes.is_full() || freezes.into_iter().any(|i| i.id == *id)
+	}
+}
+
+impl<T: Config<I>, I: 'static> MutateFreeze<T::AccountId> for Pallet<T, I> {
+	fn set_freeze(
+		asset: Self::AssetId,
+		id: &Self::Id,
+		who: &T::AccountId,
+		amount: Self::Balance,
+	) -> DispatchResult {
+		if amount.is_zero() {
+			return Self::thaw(asset, id, who);
+		}
+		let mut freezes = Freezes::<T, I>::get(asset.clone(), who);
+		if let Some(i) = freezes.iter_mut().find(|i| &i.id == id) {
+			i.amount = amount;
+		} else {
+			freezes
+				.try_push(IdAmount { id: *id, amount })
+				.map_err(|_| Error::<T, I>::TooManyFreezes)?;
+		}
+		Self::update_freezes(asset, who, freezes.as_bounded_slice())
+	}
+
+	fn extend_freeze(
+		asset: Self::AssetId,
+		id: &Self::Id,
+		who: &T::AccountId,
+		amount: Self::Balance,
+	) -> DispatchResult {
+		if amount.is_zero() {
+			return Ok(());
+		}
+		let mut freezes = Freezes::<T, I>::get(asset.clone(), who);
+		if let Some(i) = freezes.iter_mut().find(|x| &x.id == id) {
+			i.amount = i.amount.max(amount);
+		} else {
+			freezes
+				.try_push(IdAmount { id: *id, amount })
+				.map_err(|_| Error::<T, I>::TooManyFreezes)?;
+		}
+		Self::update_freezes(asset, who, freezes.as_bounded_slice())
+	}
+
+	fn thaw(asset: Self::AssetId, id: &Self::Id, who: &T::AccountId) -> DispatchResult {
+		let mut freezes = Freezes::<T, I>::get(asset.clone(), who);
+		freezes.retain(|f| &f.id != id);
+		Self::update_freezes(asset, who, freezes.as_bounded_slice())
+	}
+}

bizinikiwi/pezframe/assets-freezer/src/lib.rs

@@ -0,0 +1,184 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: MIT-0
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+//! # Assets Freezer Pallet
+//!
+//! A pallet capable of freezing fungibles from `pezpallet-assets`. This is an extension of
+//! `pezpallet-assets`, wrapping [`fungibles::Inspect`](`Inspect`).
+//! It implements both
+//! [`fungibles::freeze::Inspect`](InspectFreeze) and
+//! [`fungibles::freeze::Mutate`](MutateFreeze). The complexity
+//! of the operations is `O(n)`. where `n` is the variant count of `RuntimeFreezeReason`.
+//!
+//! ## Pallet API
+//!
+//! See the [`pallet`] module for more information about the interfaces this pallet exposes,
+//! including its configuration trait, dispatchables, storage items, events and errors.
+//!
+//! ## Overview
+//!
+//! This pallet provides the following functionality:
+//!
+//! - Pallet hooks allowing [`pezpallet-assets`] to know the frozen balance for an account on a given
+//!   asset (see [`pezpallet_assets::FrozenBalance`]).
+//! - An implementation of [`fungibles::freeze::Inspect`](InspectFreeze) and
+//!   [`fungibles::freeze::Mutate`](MutateFreeze), allowing other pallets to manage freezes for the
+//!   `pezpallet-assets` assets.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use frame::{
+	prelude::*,
+	traits::{
+		fungibles::{Inspect, InspectFreeze, MutateFreeze},
+		tokens::{
+			DepositConsequence, Fortitude, IdAmount, Preservation, Provenance, WithdrawConsequence,
+		},
+	},
+};
+
+pub use pallet::*;
+
+#[cfg(feature = "try-runtime")]
+use frame::try_runtime::TryRuntimeError;
+
+#[cfg(test)]
+mod mock;
+#[cfg(test)]
+mod tests;
+
+mod impls;
+
+#[frame::pallet]
+pub mod pallet {
+	use super::*;
+
+	#[pallet::config(with_default)]
+	pub trait Config<I: 'static = ()>: pezframe_system::Config + pezpallet_assets::Config<I> {
+		/// The overarching freeze reason.
+		#[pallet::no_default_bounds]
+		type RuntimeFreezeReason: Parameter + Member + MaxEncodedLen + Copy + VariantCount;
+
+		/// The overarching event type.
+		#[pallet::no_default_bounds]
+		#[allow(deprecated)]
+		type RuntimeEvent: From<Event<Self, I>>
+			+ IsType<<Self as pezframe_system::Config>::RuntimeEvent>;
+	}
+
+	#[pallet::error]
+	pub enum Error<T, I = ()> {
+		/// Number of freezes on an account would exceed `MaxFreezes`.
+		TooManyFreezes,
+	}
+
+	#[pallet::pallet]
+	pub struct Pallet<T, I = ()>(_);
+
+	#[pallet::event]
+	#[pallet::generate_deposit(pub(super) fn deposit_event)]
+	pub enum Event<T: Config<I>, I: 'static = ()> {
+		// `who`s frozen balance was increased by `amount`.
+		Frozen { who: T::AccountId, asset_id: T::AssetId, amount: T::Balance },
+		// `who`s frozen balance was decreased by `amount`.
+		Thawed { who: T::AccountId, asset_id: T::AssetId, amount: T::Balance },
+	}
+
+	/// A map that stores freezes applied on an account for a given AssetId.
+	#[pallet::storage]
+	pub type Freezes<T: Config<I>, I: 'static = ()> = StorageDoubleMap<
+		_,
+		Blake2_128Concat,
+		T::AssetId,
+		Blake2_128Concat,
+		T::AccountId,
+		BoundedVec<
+			IdAmount<T::RuntimeFreezeReason, T::Balance>,
+			VariantCountOf<T::RuntimeFreezeReason>,
+		>,
+		ValueQuery,
+	>;
+
+	/// A map that stores the current total frozen balance for every account on a given AssetId.
+	#[pallet::storage]
+	pub type FrozenBalances<T: Config<I>, I: 'static = ()> = StorageDoubleMap<
+		_,
+		Blake2_128Concat,
+		T::AssetId,
+		Blake2_128Concat,
+		T::AccountId,
+		T::Balance,
+	>;
+
+	#[pallet::hooks]
+	impl<T: Config<I>, I: 'static> Hooks<BlockNumberFor<T>> for Pallet<T, I> {
+		#[cfg(feature = "try-runtime")]
+		fn try_state(_: BlockNumberFor<T>) -> Result<(), TryRuntimeError> {
+			Self::do_try_state()
+		}
+	}
+}
+
+impl<T: Config<I>, I: 'static> Pallet<T, I> {
+	fn update_freezes(
+		asset: T::AssetId,
+		who: &T::AccountId,
+		freezes: BoundedSlice<
+			IdAmount<T::RuntimeFreezeReason, T::Balance>,
+			VariantCountOf<T::RuntimeFreezeReason>,
+		>,
+	) -> DispatchResult {
+		let prev_frozen = FrozenBalances::<T, I>::get(asset.clone(), who).unwrap_or_default();
+		let after_frozen = freezes.into_iter().map(|f| f.amount).max().unwrap_or_else(Zero::zero);
+		FrozenBalances::<T, I>::set(asset.clone(), who, Some(after_frozen));
+		if freezes.is_empty() {
+			Freezes::<T, I>::remove(asset.clone(), who);
+			FrozenBalances::<T, I>::remove(asset.clone(), who);
+		} else {
+			Freezes::<T, I>::insert(asset.clone(), who, freezes);
+		}
+		if prev_frozen > after_frozen {
+			let amount = prev_frozen.saturating_sub(after_frozen);
+			Self::deposit_event(Event::Thawed { asset_id: asset, who: who.clone(), amount });
+		} else if after_frozen > prev_frozen {
+			let amount = after_frozen.saturating_sub(prev_frozen);
+			Self::deposit_event(Event::Frozen { asset_id: asset, who: who.clone(), amount });
+		}
+		Ok(())
+	}
+
+	#[cfg(feature = "try-runtime")]
+	fn do_try_state() -> Result<(), TryRuntimeError> {
+		for (asset, who, _) in FrozenBalances::<T, I>::iter() {
+			let max_frozen_amount =
+				Freezes::<T, I>::get(asset.clone(), who.clone()).iter().map(|l| l.amount).max();
+
+			ensure!(
+				FrozenBalances::<T, I>::get(asset, who) == max_frozen_amount,
+				"The `FrozenAmount` is not equal to the maximum amount in `Freezes` for (`asset`, `who`)"
+			);
+		}
+
+		Ok(())
+	}
+}

bizinikiwi/pezframe/assets-freezer/src/mock.rs

@@ -0,0 +1,169 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: MIT-0
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+//! Tests mock for `pezpallet-assets-freezer`.
+
+use crate as pezpallet_assets_freezer;
+pub use crate::*;
+use codec::{Compact, Decode, Encode, MaxEncodedLen};
+use frame::testing_prelude::*;
+use scale_info::TypeInfo;
+
+pub type AccountId = u64;
+pub type Balance = u64;
+pub type AssetId = u32;
+type Block = pezframe_system::mocking::MockBlock<Test>;
+
+construct_runtime!(
+	pub enum Test
+	{
+		System: pezframe_system,
+		Assets: pezpallet_assets,
+		AssetsFreezer: pezpallet_assets_freezer,
+		Balances: pezpallet_balances,
+	}
+);
+
+#[derive_impl(pezframe_system::config_preludes::TestDefaultConfig)]
+impl pezframe_system::Config for Test {
+	type BaseCallFilter = Everything;
+	type BlockWeights = ();
+	type BlockLength = ();
+	type DbWeight = ();
+	type RuntimeOrigin = RuntimeOrigin;
+	type Nonce = u64;
+	type Hash = H256;
+	type RuntimeCall = RuntimeCall;
+	type Hashing = BlakeTwo256;
+	type AccountId = AccountId;
+	type Lookup = IdentityLookup<Self::AccountId>;
+	type Block = Block;
+	type RuntimeEvent = RuntimeEvent;
+	type BlockHashCount = ConstU64<250>;
+	type Version = ();
+	type PalletInfo = PalletInfo;
+	type AccountData = pezpallet_balances::AccountData<u64>;
+	type OnNewAccount = ();
+	type OnKilledAccount = ();
+	type SystemWeightInfo = ();
+	type SS58Prefix = ();
+	type OnSetCode = ();
+	type MaxConsumers = ConstU32<16>;
+}
+
+impl pezpallet_balances::Config for Test {
+	type MaxLocks = ();
+	type MaxReserves = ();
+	type ReserveIdentifier = [u8; 8];
+	type Balance = Balance;
+	type DustRemoval = ();
+	type RuntimeEvent = RuntimeEvent;
+	type ExistentialDeposit = ConstU64<1>;
+	type AccountStore = System;
+	type WeightInfo = ();
+	type FreezeIdentifier = ();
+	type MaxFreezes = ();
+	type RuntimeHoldReason = ();
+	type RuntimeFreezeReason = ();
+	type DoneSlashHandler = ();
+}
+
+impl pezpallet_assets::Config for Test {
+	type AssetId = AssetId;
+	type AssetIdParameter = Compact<AssetId>;
+	type ReserveData = ();
+	type AssetDeposit = ConstU64<1>;
+	type Balance = Balance;
+	type AssetAccountDeposit = ConstU64<1>;
+	type MetadataDepositBase = ();
+	type MetadataDepositPerByte = ();
+	type ApprovalDeposit = ();
+	type CreateOrigin = AsEnsureOriginWithArg<pezframe_system::EnsureSigned<u64>>;
+	type ForceOrigin = pezframe_system::EnsureRoot<u64>;
+	type StringLimit = ConstU32<32>;
+	type Extra = ();
+	type RemoveItemsLimit = ConstU32<10>;
+	type CallbackHandle = ();
+	type Currency = Balances;
+	type Holder = ();
+	type Freezer = AssetsFreezer;
+	type RuntimeEvent = RuntimeEvent;
+	type WeightInfo = ();
+	#[cfg(feature = "runtime-benchmarks")]
+	type BenchmarkHelper = ();
+}
+
+#[derive(
+	Decode,
+	DecodeWithMemTracking,
+	Encode,
+	MaxEncodedLen,
+	PartialEq,
+	Eq,
+	Ord,
+	PartialOrd,
+	TypeInfo,
+	Debug,
+	Clone,
+	Copy,
+)]
+pub enum DummyFreezeReason {
+	Governance,
+	Staking,
+	Other,
+}
+
+impl VariantCount for DummyFreezeReason {
+	// Intentionally set below the actual count of variants, to allow testing for `can_freeze`
+	const VARIANT_COUNT: u32 = 2;
+}
+
+impl Config for Test {
+	type RuntimeFreezeReason = DummyFreezeReason;
+	type RuntimeEvent = RuntimeEvent;
+}
+
+pub fn new_test_ext(execute: impl FnOnce()) -> TestExternalities {
+	let t = RuntimeGenesisConfig {
+		assets: pezpallet_assets::GenesisConfig {
+			assets: vec![(1, 0, true, 1)],
+			metadata: vec![],
+			accounts: vec![(1, 1, 100)],
+			next_asset_id: None,
+			reserves: vec![],
+		},
+		system: Default::default(),
+		balances: Default::default(),
+	}
+	.build_storage()
+	.unwrap();
+	let mut ext: TestExternalities = t.into();
+	ext.execute_with(|| {
+		System::set_block_number(1);
+		execute();
+		#[cfg(feature = "try-runtime")]
+		assert_ok!(AssetsFreezer::do_try_state());
+	});
+
+	ext
+}

bizinikiwi/pezframe/assets-freezer/src/tests.rs

@@ -0,0 +1,312 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: MIT-0
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+//! Tests for pezpallet-assets-freezer.
+
+use crate::mock::{self, *};
+
+use codec::Compact;
+use frame::testing_prelude::*;
+use pezpallet_assets::FrozenBalance;
+
+const WHO: AccountId = 1;
+const ASSET_ID: mock::AssetId = 1;
+
+fn test_set_freeze(id: DummyFreezeReason, amount: mock::Balance) {
+	let mut freezes = Freezes::<Test>::get(ASSET_ID, WHO);
+
+	if let Some(i) = freezes.iter_mut().find(|l| l.id == id) {
+		i.amount = amount;
+	} else {
+		freezes
+			.try_push(IdAmount { id, amount })
+			.expect("freeze is added without exceeding bounds; qed");
+	}
+
+	assert_ok!(AssetsFreezer::update_freezes(ASSET_ID, &WHO, freezes.as_bounded_slice()));
+}
+
+fn test_thaw(id: DummyFreezeReason) {
+	let mut freezes = Freezes::<Test>::get(ASSET_ID, WHO);
+	freezes.retain(|l| l.id != id);
+
+	assert_ok!(AssetsFreezer::update_freezes(ASSET_ID, &WHO, freezes.as_bounded_slice()));
+}
+
+mod impl_frozen_balance {
+	use super::*;
+
+	#[test]
+	fn frozen_balance_works() {
+		new_test_ext(|| {
+			assert_eq!(AssetsFreezer::frozen_balance(ASSET_ID, &WHO), None);
+			test_set_freeze(DummyFreezeReason::Governance, 1);
+			assert_eq!(AssetsFreezer::frozen_balance(ASSET_ID, &WHO), Some(1u64));
+			test_set_freeze(DummyFreezeReason::Staking, 3);
+			assert_eq!(AssetsFreezer::frozen_balance(ASSET_ID, &WHO), Some(3u64));
+			test_set_freeze(DummyFreezeReason::Governance, 2);
+			assert_eq!(AssetsFreezer::frozen_balance(ASSET_ID, &WHO), Some(3u64));
+			// also test thawing works to reduce a balance, and finally thawing everything resets to
+			// None
+			test_thaw(DummyFreezeReason::Governance);
+			assert_eq!(AssetsFreezer::frozen_balance(ASSET_ID, &WHO), Some(3u64));
+			test_thaw(DummyFreezeReason::Staking);
+			assert_eq!(AssetsFreezer::frozen_balance(ASSET_ID, &WHO), None);
+		});
+	}
+
+	#[test]
+	#[should_panic = "The list of Freezes should be empty before allowing an account to die"]
+	fn died_fails_if_freezes_exist() {
+		new_test_ext(|| {
+			test_set_freeze(DummyFreezeReason::Governance, 1);
+			AssetsFreezer::died(ASSET_ID, &WHO);
+		});
+	}
+
+	#[test]
+	fn died_works() {
+		new_test_ext(|| {
+			test_set_freeze(DummyFreezeReason::Governance, 1);
+			test_thaw(DummyFreezeReason::Governance);
+			AssetsFreezer::died(ASSET_ID, &WHO);
+			assert!(FrozenBalances::<Test>::get(ASSET_ID, WHO).is_none());
+			assert!(Freezes::<Test>::get(ASSET_ID, WHO).is_empty());
+		});
+	}
+}
+
+mod impl_inspect_freeze {
+	use super::*;
+
+	#[test]
+	fn balance_frozen_works() {
+		new_test_ext(|| {
+			assert_eq!(
+				AssetsFreezer::balance_frozen(ASSET_ID, &DummyFreezeReason::Governance, &WHO),
+				0u64
+			);
+			test_set_freeze(DummyFreezeReason::Governance, 1);
+			assert_eq!(
+				AssetsFreezer::balance_frozen(ASSET_ID, &DummyFreezeReason::Governance, &WHO),
+				1u64
+			);
+			test_set_freeze(DummyFreezeReason::Staking, 3);
+			assert_eq!(
+				AssetsFreezer::balance_frozen(ASSET_ID, &DummyFreezeReason::Staking, &WHO),
+				3u64
+			);
+			test_set_freeze(DummyFreezeReason::Staking, 2);
+			assert_eq!(
+				AssetsFreezer::balance_frozen(ASSET_ID, &DummyFreezeReason::Staking, &WHO),
+				2u64
+			);
+			// also test thawing works to reduce a balance, and finally thawing everything resets to
+			// 0
+			test_thaw(DummyFreezeReason::Governance);
+			assert_eq!(
+				AssetsFreezer::balance_frozen(ASSET_ID, &DummyFreezeReason::Governance, &WHO),
+				0u64
+			);
+			test_thaw(DummyFreezeReason::Staking);
+			assert_eq!(
+				AssetsFreezer::balance_frozen(ASSET_ID, &DummyFreezeReason::Staking, &WHO),
+				0u64
+			);
+		});
+	}
+
+	/// This tests it's not possible to freeze once the freezes [`BoundedVec`] is full. This is,
+	/// the lenght of the vec is equal to [`Config::MaxFreezes`].
+	/// This test assumes a mock configuration where this parameter is set to `2`.
+	#[test]
+	fn can_freeze_works() {
+		new_test_ext(|| {
+			test_set_freeze(DummyFreezeReason::Governance, 1);
+			assert!(AssetsFreezer::can_freeze(ASSET_ID, &DummyFreezeReason::Staking, &WHO));
+			test_set_freeze(DummyFreezeReason::Staking, 1);
+			assert!(!AssetsFreezer::can_freeze(ASSET_ID, &DummyFreezeReason::Other, &WHO));
+		});
+	}
+}
+
+mod impl_mutate_freeze {
+	use super::*;
+
+	#[test]
+	fn set_freeze_works() {
+		new_test_ext(|| {
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				99
+			);
+			assert_ok!(AssetsFreezer::set_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				10
+			));
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				90
+			);
+			System::assert_last_event(
+				Event::<Test>::Frozen { asset_id: ASSET_ID, who: WHO, amount: 10 }.into(),
+			);
+			assert_ok!(AssetsFreezer::set_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				8
+			));
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				92
+			);
+			System::assert_last_event(
+				Event::<Test>::Thawed { asset_id: ASSET_ID, who: WHO, amount: 2 }.into(),
+			);
+		});
+	}
+
+	#[test]
+	fn extend_freeze_works() {
+		new_test_ext(|| {
+			assert_ok!(AssetsFreezer::set_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				10
+			));
+			assert_storage_noop!(assert_ok!(AssetsFreezer::extend_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				8
+			)));
+			System::assert_last_event(
+				Event::<Test>::Frozen { asset_id: ASSET_ID, who: WHO, amount: 10 }.into(),
+			);
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				90
+			);
+			assert_ok!(AssetsFreezer::extend_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				11
+			));
+			System::assert_last_event(
+				Event::<Test>::Frozen { asset_id: ASSET_ID, who: WHO, amount: 1 }.into(),
+			);
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				89
+			);
+		});
+	}
+
+	#[test]
+	fn thaw_works() {
+		new_test_ext(|| {
+			assert_ok!(AssetsFreezer::set_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				10
+			));
+			System::assert_has_event(
+				Event::<Test>::Frozen { asset_id: ASSET_ID, who: WHO, amount: 10 }.into(),
+			);
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				90
+			);
+			assert_ok!(AssetsFreezer::thaw(ASSET_ID, &DummyFreezeReason::Governance, &WHO));
+			System::assert_has_event(
+				Event::<Test>::Thawed { asset_id: ASSET_ID, who: WHO, amount: 10 }.into(),
+			);
+			assert_eq!(
+				Assets::reducible_balance(
+					ASSET_ID,
+					&WHO,
+					Preservation::Preserve,
+					Fortitude::Polite,
+				),
+				99
+			);
+		});
+	}
+}
+
+mod with_pallet_assets {
+	use super::*;
+
+	#[test]
+	fn frozen_balance_affects_balance_transferring() {
+		new_test_ext(|| {
+			assert_ok!(AssetsFreezer::set_freeze(
+				ASSET_ID,
+				&DummyFreezeReason::Governance,
+				&WHO,
+				20
+			));
+			assert_noop!(
+				Assets::transfer(RuntimeOrigin::signed(WHO), Compact(ASSET_ID), 2, 81),
+				pezpallet_assets::Error::<Test>::BalanceLow,
+			);
+			assert_ok!(Assets::transfer(RuntimeOrigin::signed(WHO), Compact(ASSET_ID), 2, 80));
+		});
+	}
+}