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// This file is part of Substrate.
// Copyright (C) 2019-2022 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.
//! Tests for Assets pallet.
use super::*;
use crate::{mock::*, Error};
use frame_support::{assert_noop, assert_ok, traits::Currency};
use pallet_balances::Error as BalancesError;
use sp_runtime::{traits::ConvertInto, TokenError};
#[test]
fn basic_minting_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::mint(Origin::signed(1), 0, 2, 100));
assert_eq!(Assets::balance(0, 2), 100);
});
}
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#[test]
fn minting_too_many_insufficient_assets_fails() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
assert_ok!(Assets::force_create(Origin::root(), 1, 1, false, 1));
assert_ok!(Assets::force_create(Origin::root(), 2, 1, false, 1));
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_ok!(Assets::mint(Origin::signed(1), 1, 1, 100));
assert_noop!(Assets::mint(Origin::signed(1), 2, 1, 100), TokenError::CannotCreate);
Balances::make_free_balance_be(&2, 1);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 100));
assert_ok!(Assets::mint(Origin::signed(1), 2, 1, 100));
});
}
#[test]
fn minting_insufficient_asset_with_deposit_should_work_when_consumers_exhausted() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
assert_ok!(Assets::force_create(Origin::root(), 1, 1, false, 1));
assert_ok!(Assets::force_create(Origin::root(), 2, 1, false, 1));
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_ok!(Assets::mint(Origin::signed(1), 1, 1, 100));
assert_noop!(Assets::mint(Origin::signed(1), 2, 1, 100), TokenError::CannotCreate);
assert_ok!(Assets::touch(Origin::signed(1), 2));
assert_eq!(Balances::reserved_balance(&1), 10);
assert_ok!(Assets::mint(Origin::signed(1), 2, 1, 100));
});
}
#[test]
fn minting_insufficient_assets_with_deposit_without_consumer_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
assert_noop!(Assets::mint(Origin::signed(1), 0, 1, 100), TokenError::CannotCreate);
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::touch(Origin::signed(1), 0));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Balances::reserved_balance(&1), 10);
assert_eq!(System::consumers(&1), 0);
});
}
#[test]
fn refunding_asset_deposit_with_burn_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::touch(Origin::signed(1), 0));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_ok!(Assets::refund(Origin::signed(1), 0, true));
assert_eq!(Balances::reserved_balance(&1), 0);
assert_eq!(Assets::balance(1, 0), 0);
});
}
#[test]
fn refunding_asset_deposit_with_burn_disallowed_should_fail() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::touch(Origin::signed(1), 0));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_noop!(Assets::refund(Origin::signed(1), 0, false), Error::<Test>::WouldBurn);
});
}
#[test]
fn refunding_asset_deposit_without_burn_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
assert_noop!(Assets::mint(Origin::signed(1), 0, 1, 100), TokenError::CannotCreate);
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::touch(Origin::signed(1), 0));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&2, 100);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 100));
assert_eq!(Assets::balance(0, 2), 100);
assert_eq!(Assets::balance(0, 1), 0);
assert_eq!(Balances::reserved_balance(&1), 10);
assert_ok!(Assets::refund(Origin::signed(1), 0, false));
assert_eq!(Balances::reserved_balance(&1), 0);
assert_eq!(Assets::balance(1, 0), 0);
});
}
/// Refunding reaps an account and calls the `FrozenBalance::died` hook.
#[test]
fn refunding_calls_died_hook() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::touch(Origin::signed(1), 0));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_ok!(Assets::refund(Origin::signed(1), 0, true));
assert_eq!(Asset::<Test>::get(0).unwrap().accounts, 0);
assert_eq!(hooks(), vec![Hook::Died(0, 1)]);
});
}
#[test]
fn approval_lifecycle_works() {
new_test_ext().execute_with(|| {
// can't approve non-existent token
assert_noop!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50), Error::<Test>::Unknown);
// so we create it :)
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
assert_eq!(Balances::reserved_balance(&1), 1);
assert_ok!(Assets::transfer_approved(Origin::signed(2), 0, 1, 3, 40));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
assert_ok!(Assets::cancel_approval(Origin::signed(1), 0, 2));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 0);
assert_eq!(Assets::balance(0, 1), 60);
assert_eq!(Assets::balance(0, 3), 40);
assert_eq!(Balances::reserved_balance(&1), 0);
});
}
#[test]
fn transfer_approved_all_funds() {
new_test_ext().execute_with(|| {
// can't approve non-existent token
assert_noop!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50), Error::<Test>::Unknown);
// so we create it :)
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
assert_eq!(Balances::reserved_balance(&1), 1);
// transfer the full amount, which should trigger auto-cleanup
assert_ok!(Assets::transfer_approved(Origin::signed(2), 0, 1, 3, 50));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 0);
assert_eq!(Assets::balance(0, 1), 50);
assert_eq!(Assets::balance(0, 3), 50);
assert_eq!(Balances::reserved_balance(&1), 0);
});
}
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#[test]
fn approval_deposits_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
let e = BalancesError::<Test>::InsufficientBalance;
assert_noop!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50), e);
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Balances::reserved_balance(&1), 1);
assert_ok!(Assets::transfer_approved(Origin::signed(2), 0, 1, 3, 50));
assert_eq!(Balances::reserved_balance(&1), 0);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_ok!(Assets::cancel_approval(Origin::signed(1), 0, 2));
assert_eq!(Balances::reserved_balance(&1), 0);
});
}
#[test]
fn cannot_transfer_more_than_approved() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
let e = Error::<Test>::Unapproved;
assert_noop!(Assets::transfer_approved(Origin::signed(2), 0, 1, 3, 51), e);
});
}
#[test]
fn cannot_transfer_more_than_exists() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 101));
let e = Error::<Test>::BalanceLow;
assert_noop!(Assets::transfer_approved(Origin::signed(2), 0, 1, 3, 101), e);
});
}
#[test]
fn cancel_approval_works() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
assert_noop!(Assets::cancel_approval(Origin::signed(1), 1, 2), Error::<Test>::Unknown);
assert_noop!(Assets::cancel_approval(Origin::signed(2), 0, 2), Error::<Test>::Unknown);
assert_noop!(Assets::cancel_approval(Origin::signed(1), 0, 3), Error::<Test>::Unknown);
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
assert_ok!(Assets::cancel_approval(Origin::signed(1), 0, 2));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 0);
assert_noop!(Assets::cancel_approval(Origin::signed(1), 0, 2), Error::<Test>::Unknown);
});
}
#[test]
fn force_cancel_approval_works() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
let e = Error::<Test>::NoPermission;
assert_noop!(Assets::force_cancel_approval(Origin::signed(2), 0, 1, 2), e);
assert_noop!(
Assets::force_cancel_approval(Origin::signed(1), 1, 1, 2),
Error::<Test>::Unknown
);
assert_noop!(
Assets::force_cancel_approval(Origin::signed(1), 0, 2, 2),
Error::<Test>::Unknown
);
assert_noop!(
Assets::force_cancel_approval(Origin::signed(1), 0, 1, 3),
Error::<Test>::Unknown
);
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 1);
assert_ok!(Assets::force_cancel_approval(Origin::signed(1), 0, 1, 2));
assert_eq!(Asset::<Test>::get(0).unwrap().approvals, 0);
assert_noop!(
Assets::force_cancel_approval(Origin::signed(1), 0, 1, 2),
Error::<Test>::Unknown
);
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});
}
#[test]
fn lifecycle_should_work() {
new_test_ext().execute_with(|| {
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::create(Origin::signed(1), 0, 1, 1));
assert_eq!(Balances::reserved_balance(&1), 1);
assert!(Asset::<Test>::contains_key(0));
assert_ok!(Assets::set_metadata(Origin::signed(1), 0, vec![0], vec![0], 12));
assert_eq!(Balances::reserved_balance(&1), 4);
assert!(Metadata::<Test>::contains_key(0));
Balances::make_free_balance_be(&10, 100);
assert_ok!(Assets::mint(Origin::signed(1), 0, 10, 100));
Balances::make_free_balance_be(&20, 100);
assert_ok!(Assets::mint(Origin::signed(1), 0, 20, 100));
assert_eq!(Account::<Test>::iter_prefix(0).count(), 2);
let w = Asset::<Test>::get(0).unwrap().destroy_witness();
assert_ok!(Assets::destroy(Origin::signed(1), 0, w));
assert_eq!(Balances::reserved_balance(&1), 0);
assert!(!Asset::<Test>::contains_key(0));
assert!(!Metadata::<Test>::contains_key(0));
assert_eq!(Account::<Test>::iter_prefix(0).count(), 0);
assert_ok!(Assets::create(Origin::signed(1), 0, 1, 1));
assert_eq!(Balances::reserved_balance(&1), 1);
assert!(Asset::<Test>::contains_key(0));
assert_ok!(Assets::set_metadata(Origin::signed(1), 0, vec![0], vec![0], 12));
assert_eq!(Balances::reserved_balance(&1), 4);
assert!(Metadata::<Test>::contains_key(0));
assert_ok!(Assets::mint(Origin::signed(1), 0, 10, 100));
assert_ok!(Assets::mint(Origin::signed(1), 0, 20, 100));
assert_eq!(Account::<Test>::iter_prefix(0).count(), 2);
let w = Asset::<Test>::get(0).unwrap().destroy_witness();
assert_ok!(Assets::destroy(Origin::root(), 0, w));
assert_eq!(Balances::reserved_balance(&1), 0);
assert!(!Asset::<Test>::contains_key(0));
assert!(!Metadata::<Test>::contains_key(0));
assert_eq!(Account::<Test>::iter_prefix(0).count(), 0);
});
}
#[test]
fn destroy_with_bad_witness_should_not_work() {
new_test_ext().execute_with(|| {
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
let mut w = Asset::<Test>::get(0).unwrap().destroy_witness();
assert_ok!(Assets::mint(Origin::signed(1), 0, 10, 100));
assert_noop!(Assets::destroy(Origin::signed(1), 0, w), Error::<Test>::BadWitness);
// witness too high is okay though
w.accounts += 2;
w.sufficients += 2;
assert_ok!(Assets::destroy(Origin::signed(1), 0, w));
});
}
#[test]
fn destroy_should_refund_approvals() {
new_test_ext().execute_with(|| {
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 10, 100));
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 3, 50));
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 4, 50));
assert_eq!(Balances::reserved_balance(&1), 3);
let w = Asset::<Test>::get(0).unwrap().destroy_witness();
assert_ok!(Assets::destroy(Origin::signed(1), 0, w));
assert_eq!(Balances::reserved_balance(&1), 0);
// all approvals are removed
assert!(Approvals::<Test>::iter().count().is_zero())
});
}
#[test]
fn non_providing_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, false, 1));
Balances::make_free_balance_be(&0, 100);
assert_ok!(Assets::mint(Origin::signed(1), 0, 0, 100));
// Cannot mint into account 2 since it doesn't (yet) exist...
assert_noop!(Assets::mint(Origin::signed(1), 0, 1, 100), TokenError::CannotCreate);
assert_noop!(Assets::transfer(Origin::signed(0), 0, 1, 50), TokenError::CannotCreate);
// ...or force-transfer
assert_noop!(
Assets::force_transfer(Origin::signed(1), 0, 0, 1, 50),
TokenError::CannotCreate
);
Balances::make_free_balance_be(&1, 100);
Balances::make_free_balance_be(&2, 100);
assert_ok!(Assets::transfer(Origin::signed(0), 0, 1, 25));
assert_ok!(Assets::force_transfer(Origin::signed(1), 0, 0, 2, 25));
});
}
#[test]
fn min_balance_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 10));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Asset::<Test>::get(0).unwrap().accounts, 1);
// Cannot create a new account with a balance that is below minimum...
assert_noop!(Assets::mint(Origin::signed(1), 0, 2, 9), TokenError::BelowMinimum);
assert_noop!(Assets::transfer(Origin::signed(1), 0, 2, 9), TokenError::BelowMinimum);
assert_noop!(
Assets::force_transfer(Origin::signed(1), 0, 1, 2, 9),
TokenError::BelowMinimum
);
// When deducting from an account to below minimum, it should be reaped.
// Death by `transfer`.
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 91));
assert!(Assets::maybe_balance(0, 1).is_none());
assert_eq!(Assets::balance(0, 2), 100);
assert_eq!(Asset::<Test>::get(0).unwrap().accounts, 1);
assert_eq!(take_hooks(), vec![Hook::Died(0, 1)]);
// Death by `force_transfer`.
assert_ok!(Assets::force_transfer(Origin::signed(1), 0, 2, 1, 91));
assert!(Assets::maybe_balance(0, 2).is_none());
assert_eq!(Assets::balance(0, 1), 100);
assert_eq!(Asset::<Test>::get(0).unwrap().accounts, 1);
assert_eq!(take_hooks(), vec![Hook::Died(0, 2)]);
// Death by `burn`.
assert_ok!(Assets::burn(Origin::signed(1), 0, 1, 91));
assert!(Assets::maybe_balance(0, 1).is_none());
assert_eq!(Asset::<Test>::get(0).unwrap().accounts, 0);
assert_eq!(take_hooks(), vec![Hook::Died(0, 1)]);
// Death by `transfer_approved`.
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 100));
assert_ok!(Assets::transfer_approved(Origin::signed(2), 0, 1, 3, 91));
assert_eq!(take_hooks(), vec![Hook::Died(0, 1)]);
});
}
#[test]
fn querying_total_supply_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Assets::balance(0, 1), 50);
assert_eq!(Assets::balance(0, 2), 50);
assert_ok!(Assets::transfer(Origin::signed(2), 0, 3, 31));
assert_eq!(Assets::balance(0, 1), 50);
assert_eq!(Assets::balance(0, 2), 19);
assert_eq!(Assets::balance(0, 3), 31);
assert_ok!(Assets::burn(Origin::signed(1), 0, 3, u64::MAX));
assert_eq!(Assets::total_supply(0), 69);
});
}
#[test]
fn transferring_amount_below_available_balance_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Assets::balance(0, 1), 50);
assert_eq!(Assets::balance(0, 2), 50);
});
}
#[test]
fn transferring_enough_to_kill_source_when_keep_alive_should_fail() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 10));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_noop!(
Assets::transfer_keep_alive(Origin::signed(1), 0, 2, 91),
Error::<Test>::BalanceLow
);
assert_ok!(Assets::transfer_keep_alive(Origin::signed(1), 0, 2, 90));
assert_eq!(Assets::balance(0, 1), 10);
assert_eq!(Assets::balance(0, 2), 90);
assert!(hooks().is_empty());
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});
}
#[test]
fn transferring_frozen_user_should_not_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::freeze(Origin::signed(1), 0, 1));
assert_noop!(Assets::transfer(Origin::signed(1), 0, 2, 50), Error::<Test>::Frozen);
assert_ok!(Assets::thaw(Origin::signed(1), 0, 1));
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
});
}
#[test]
fn transferring_frozen_asset_should_not_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::freeze_asset(Origin::signed(1), 0));
assert_noop!(Assets::transfer(Origin::signed(1), 0, 2, 50), Error::<Test>::Frozen);
assert_ok!(Assets::thaw_asset(Origin::signed(1), 0));
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
});
}
#[test]
fn approve_transfer_frozen_asset_should_not_work() {
new_test_ext().execute_with(|| {
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::freeze_asset(Origin::signed(1), 0));
assert_noop!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50), Error::<Test>::Frozen);
assert_ok!(Assets::thaw_asset(Origin::signed(1), 0));
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
});
}
#[test]
fn origin_guards_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_noop!(
Assets::transfer_ownership(Origin::signed(2), 0, 2),
Error::<Test>::NoPermission
);
assert_noop!(Assets::set_team(Origin::signed(2), 0, 2, 2, 2), Error::<Test>::NoPermission);
assert_noop!(Assets::freeze(Origin::signed(2), 0, 1), Error::<Test>::NoPermission);
assert_noop!(Assets::thaw(Origin::signed(2), 0, 2), Error::<Test>::NoPermission);
assert_noop!(Assets::mint(Origin::signed(2), 0, 2, 100), Error::<Test>::NoPermission);
assert_noop!(Assets::burn(Origin::signed(2), 0, 1, 100), Error::<Test>::NoPermission);
assert_noop!(
Assets::force_transfer(Origin::signed(2), 0, 1, 2, 100),
Error::<Test>::NoPermission
);
let w = Asset::<Test>::get(0).unwrap().destroy_witness();
assert_noop!(Assets::destroy(Origin::signed(2), 0, w), Error::<Test>::NoPermission);
});
}
#[test]
fn transfer_owner_should_work() {
new_test_ext().execute_with(|| {
Balances::make_free_balance_be(&1, 100);
Balances::make_free_balance_be(&2, 100);
assert_ok!(Assets::create(Origin::signed(1), 0, 1, 1));
assert_eq!(Balances::reserved_balance(&1), 1);
assert_ok!(Assets::transfer_ownership(Origin::signed(1), 0, 2));
assert_eq!(Balances::reserved_balance(&2), 1);
assert_eq!(Balances::reserved_balance(&1), 0);
assert_noop!(
Assets::transfer_ownership(Origin::signed(1), 0, 1),
Error::<Test>::NoPermission
);
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// Set metadata now and make sure that deposit gets transferred back.
assert_ok!(Assets::set_metadata(Origin::signed(2), 0, vec![0u8; 10], vec![0u8; 10], 12));
assert_ok!(Assets::transfer_ownership(Origin::signed(2), 0, 1));
assert_eq!(Balances::reserved_balance(&1), 22);
assert_eq!(Balances::reserved_balance(&2), 0);
});
}
#[test]
fn set_team_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::set_team(Origin::signed(1), 0, 2, 3, 4));
assert_ok!(Assets::mint(Origin::signed(2), 0, 2, 100));
assert_ok!(Assets::freeze(Origin::signed(4), 0, 2));
assert_ok!(Assets::thaw(Origin::signed(3), 0, 2));
assert_ok!(Assets::force_transfer(Origin::signed(3), 0, 2, 3, 100));
assert_ok!(Assets::burn(Origin::signed(3), 0, 3, 100));
});
}
#[test]
fn transferring_to_frozen_account_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_ok!(Assets::mint(Origin::signed(1), 0, 2, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_eq!(Assets::balance(0, 2), 100);
assert_ok!(Assets::freeze(Origin::signed(1), 0, 2));
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Assets::balance(0, 2), 150);
});
}
#[test]
fn transferring_amount_more_than_available_balance_should_not_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(Assets::balance(0, 1), 50);
assert_eq!(Assets::balance(0, 2), 50);
assert_ok!(Assets::burn(Origin::signed(1), 0, 1, u64::MAX));
assert_eq!(Assets::balance(0, 1), 0);
assert_noop!(Assets::transfer(Origin::signed(1), 0, 1, 50), Error::<Test>::NoAccount);
assert_noop!(Assets::transfer(Origin::signed(2), 0, 1, 51), Error::<Test>::BalanceLow);
});
}
#[test]
fn transferring_less_than_one_unit_is_fine() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 0));
// `ForceCreated` and `Issued` but no `Transferred` event.
assert_eq!(System::events().len(), 2);
});
}
#[test]
fn transferring_more_units_than_total_supply_should_not_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_noop!(Assets::transfer(Origin::signed(1), 0, 2, 101), Error::<Test>::BalanceLow);
});
}
#[test]
fn burning_asset_balance_with_positive_balance_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
assert_ok!(Assets::burn(Origin::signed(1), 0, 1, u64::MAX));
assert_eq!(Assets::balance(0, 1), 0);
});
}
#[test]
fn burning_asset_balance_with_zero_balance_does_nothing() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 2), 0);
assert_noop!(Assets::burn(Origin::signed(1), 0, 2, u64::MAX), Error::<Test>::NoAccount);
assert_eq!(Assets::balance(0, 2), 0);
assert_eq!(Assets::total_supply(0), 100);
});
}
#[test]
fn set_metadata_should_work() {
new_test_ext().execute_with(|| {
// Cannot add metadata to unknown asset
assert_noop!(
Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 10], vec![0u8; 10], 12),
Error::<Test>::Unknown,
);
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
// Cannot add metadata to unowned asset
assert_noop!(
Assets::set_metadata(Origin::signed(2), 0, vec![0u8; 10], vec![0u8; 10], 12),
Error::<Test>::NoPermission,
);
// Cannot add oversized metadata
assert_noop!(
Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 100], vec![0u8; 10], 12),
Error::<Test>::BadMetadata,
);
Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 10], vec![0u8; 100], 12),
Error::<Test>::BadMetadata,
);
// Successfully add metadata and take deposit
Balances::make_free_balance_be(&1, 30);
assert_ok!(Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 10], vec![0u8; 10], 12));
assert_eq!(Balances::free_balance(&1), 9);
// Update deposit
assert_ok!(Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 10], vec![0u8; 5], 12));
assert_eq!(Balances::free_balance(&1), 14);
assert_ok!(Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 10], vec![0u8; 15], 12));
assert_eq!(Balances::free_balance(&1), 4);
// Cannot over-reserve
assert_noop!(
Assets::set_metadata(Origin::signed(1), 0, vec![0u8; 20], vec![0u8; 20], 12),
BalancesError::<Test, _>::InsufficientBalance,
);
// Clear Metadata
assert!(Metadata::<Test>::contains_key(0));
assert_noop!(Assets::clear_metadata(Origin::signed(2), 0), Error::<Test>::NoPermission);
assert_noop!(Assets::clear_metadata(Origin::signed(1), 1), Error::<Test>::Unknown);
assert_ok!(Assets::clear_metadata(Origin::signed(1), 0));
assert!(!Metadata::<Test>::contains_key(0));
});
}
/// Destroying an asset calls the `FrozenBalance::died` hooks of all accounts.
#[test]
fn destroy_calls_died_hooks() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 50));
// Create account 1 and 2.
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_ok!(Assets::mint(Origin::signed(1), 0, 2, 100));
// Destroy the asset.
let w = Asset::<Test>::get(0).unwrap().destroy_witness();
assert_ok!(Assets::destroy(Origin::signed(1), 0, w));
// Asset is gone and accounts 1 and 2 died.
assert!(Asset::<Test>::get(0).is_none());
assert_eq!(hooks(), vec![Hook::Died(0, 1), Hook::Died(0, 2)]);
})
}
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#[test]
fn freezer_should_work() {
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 10));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
assert_eq!(Assets::balance(0, 1), 100);
// freeze 50 of it.
set_frozen_balance(0, 1, 50);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 20));
// cannot transfer another 21 away as this would take the non-frozen balance (30) to below
// the minimum balance (10).
assert_noop!(Assets::transfer(Origin::signed(1), 0, 2, 21), Error::<Test>::BalanceLow);
// create an approved transfer...
Balances::make_free_balance_be(&1, 100);
assert_ok!(Assets::approve_transfer(Origin::signed(1), 0, 2, 50));
let e = Error::<Test>::BalanceLow;
// ...but that wont work either:
assert_noop!(Assets::transfer_approved(Origin::signed(2), 0, 1, 2, 21), e);
// a force transfer won't work also.
let e = Error::<Test>::BalanceLow;
assert_noop!(Assets::force_transfer(Origin::signed(1), 0, 1, 2, 21), e);
// reduce it to only 49 frozen...
set_frozen_balance(0, 1, 49);
// ...and it's all good:
assert_ok!(Assets::force_transfer(Origin::signed(1), 0, 1, 2, 21));
// and if we clear it, we can remove the account completely.
clear_frozen_balance(0, 1);
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 50));
assert_eq!(hooks(), vec![Hook::Died(0, 1)]);
});
}
#[test]
fn imbalances_should_work() {
use frame_support::traits::tokens::fungibles::Balanced;
new_test_ext().execute_with(|| {
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
let imb = Assets::issue(0, 100);
assert_eq!(Assets::total_supply(0), 100);
assert_eq!(imb.peek(), 100);
let (imb1, imb2) = imb.split(30);
assert_eq!(imb1.peek(), 30);
assert_eq!(imb2.peek(), 70);
drop(imb2);
assert_eq!(Assets::total_supply(0), 30);
assert!(Assets::resolve(&1, imb1).is_ok());
assert_eq!(Assets::balance(0, 1), 30);
assert_eq!(Assets::total_supply(0), 30);
});
}
#[test]
fn force_metadata_should_work() {
new_test_ext().execute_with(|| {
// force set metadata works
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::force_set_metadata(
Origin::root(),
0,
vec![0u8; 10],
vec![0u8; 10],
8,
false
));
assert!(Metadata::<Test>::contains_key(0));
// overwrites existing metadata
let asset_original_metadata = Metadata::<Test>::get(0);
assert_ok!(Assets::force_set_metadata(
Origin::root(),
0,
vec![1u8; 10],
vec![1u8; 10],
8,
false
));
assert_ne!(Metadata::<Test>::get(0), asset_original_metadata);
// attempt to set metadata for non-existent asset class
assert_noop!(
Assets::force_set_metadata(Origin::root(), 1, vec![0u8; 10], vec![0u8; 10], 8, false),
Error::<Test>::Unknown
);
// string length limit check
Assets::force_set_metadata(
Origin::root(),
0,
vec![0u8; limit + 1],
vec![0u8; 10],
8,
false
),
Error::<Test>::BadMetadata
);
assert_noop!(
Assets::force_set_metadata(
Origin::root(),
0,
vec![0u8; 10],
vec![0u8; limit + 1],
8,
false
),
// force clear metadata works
assert!(Metadata::<Test>::contains_key(0));
assert_ok!(Assets::force_clear_metadata(Origin::root(), 0));
assert!(!Metadata::<Test>::contains_key(0));
// Error handles clearing non-existent asset class
assert_noop!(Assets::force_clear_metadata(Origin::root(), 1), Error::<Test>::Unknown);
});
}
#[test]
fn force_asset_status_should_work() {
new_test_ext().execute_with(|| {
Balances::make_free_balance_be(&1, 10);
Balances::make_free_balance_be(&2, 10);
assert_ok!(Assets::create(Origin::signed(1), 0, 1, 30));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 50));
assert_ok!(Assets::mint(Origin::signed(1), 0, 2, 150));
// force asset status to change min_balance > balance
assert_ok!(Assets::force_asset_status(Origin::root(), 0, 1, 1, 1, 1, 100, true, false));
assert_eq!(Assets::balance(0, 1), 50);
// account can recieve assets for balance < min_balance
assert_ok!(Assets::transfer(Origin::signed(2), 0, 1, 1));
assert_eq!(Assets::balance(0, 1), 51);
// account on outbound transfer will cleanup for balance < min_balance
assert_ok!(Assets::transfer(Origin::signed(1), 0, 2, 1));
assert_eq!(Assets::balance(0, 1), 0);
// won't create new account with balance below min_balance
assert_noop!(Assets::transfer(Origin::signed(2), 0, 3, 50), TokenError::BelowMinimum);
// force asset status will not execute for non-existent class
assert_noop!(
Assets::force_asset_status(Origin::root(), 1, 1, 1, 1, 1, 90, true, false),
Error::<Test>::Unknown
);
// account drains to completion when funds dip below min_balance
assert_ok!(Assets::force_asset_status(Origin::root(), 0, 1, 1, 1, 1, 110, true, false));
assert_ok!(Assets::transfer(Origin::signed(2), 0, 1, 110));
assert_eq!(Assets::balance(0, 1), 200);
assert_eq!(Assets::balance(0, 2), 0);
assert_eq!(Assets::total_supply(0), 200);
});
}
#[test]
fn balance_conversion_should_work() {
new_test_ext().execute_with(|| {
use frame_support::traits::tokens::BalanceConversion;
let id = 42;
assert_ok!(Assets::force_create(Origin::root(), id, 1, true, 10));
let not_sufficient = 23;
assert_ok!(Assets::force_create(Origin::root(), not_sufficient, 1, false, 10));
assert_eq!(
BalanceToAssetBalance::<Balances, Test, ConvertInto>::to_asset_balance(100, 1234),
Err(ConversionError::AssetMissing)
);
assert_eq!(
BalanceToAssetBalance::<Balances, Test, ConvertInto>::to_asset_balance(
100,
not_sufficient
),
Err(ConversionError::AssetNotSufficient)
);
// 10 / 1 == 10 -> the conversion should 10x the value
assert_eq!(
BalanceToAssetBalance::<Balances, Test, ConvertInto>::to_asset_balance(100, id),
Ok(100 * 10)
);
});
}
#[test]
fn assets_from_genesis_should_exist() {
new_test_ext().execute_with(|| {
assert!(Asset::<Test>::contains_key(999));
assert!(Metadata::<Test>::contains_key(999));
assert_eq!(Assets::balance(999, 1), 100);
assert_eq!(Assets::total_supply(999), 100);
});
}
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#[test]
fn querying_name_symbol_and_decimals_should_work() {
new_test_ext().execute_with(|| {
use frame_support::traits::tokens::fungibles::metadata::Inspect;
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::force_set_metadata(
Origin::root(),
0,
vec![0u8; 10],
vec![1u8; 10],
12,
false
));
assert_eq!(Assets::name(0), vec![0u8; 10]);
assert_eq!(Assets::symbol(0), vec![1u8; 10]);
assert_eq!(Assets::decimals(0), 12);
});
}
#[test]
fn querying_allowance_should_work() {
new_test_ext().execute_with(|| {
use frame_support::traits::tokens::fungibles::approvals::{Inspect, Mutate};
assert_ok!(Assets::force_create(Origin::root(), 0, 1, true, 1));
assert_ok!(Assets::mint(Origin::signed(1), 0, 1, 100));
Balances::make_free_balance_be(&1, 1);
assert_ok!(Assets::approve(0, &1, &2, 50));
assert_eq!(Assets::allowance(0, &1, &2), 50);
// Transfer asset 0, from owner 1 and delegate 2 to destination 3
assert_ok!(Assets::transfer_from(0, &1, &2, &3, 50));
assert_eq!(Assets::allowance(0, &1, &2), 0);
});
}