1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132

// This file is part of Substrate.

// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0

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

//! Nft fractionalization pallet benchmarking.

#![cfg(feature = "runtime-benchmarks")]

use super::*;
use frame_benchmarking::{benchmarks, whitelisted_caller};
use frame_support::{
	assert_ok,
	traits::{
		fungible::{Inspect as InspectFungible, Mutate as MutateFungible},
		tokens::nonfungibles_v2::{Create, Mutate},
		Get,
	},
};
use frame_system::{pallet_prelude::BlockNumberFor, RawOrigin as SystemOrigin};
use pallet_nfts::{CollectionConfig, CollectionSettings, ItemConfig, MintSettings};
use sp_runtime::traits::StaticLookup;
use sp_std::prelude::*;

use crate::Pallet as NftFractionalization;

type BalanceOf<T> =
	<<T as Config>::Currency as InspectFungible<<T as SystemConfig>::AccountId>>::Balance;

type CollectionConfigOf<T> =
	CollectionConfig<BalanceOf<T>, BlockNumberFor<T>, <T as Config>::NftCollectionId>;

fn default_collection_config<T: Config>() -> CollectionConfigOf<T>
where
	T::Currency: InspectFungible<T::AccountId>,
{
	CollectionConfig {
		settings: CollectionSettings::all_enabled(),
		max_supply: None,
		mint_settings: MintSettings::default(),
	}
}

fn mint_nft<T: Config>(nft_id: T::NftId) -> (T::AccountId, AccountIdLookupOf<T>)
where
	T::Nfts: Create<T::AccountId, CollectionConfig<BalanceOf<T>, BlockNumberFor<T>, T::NftCollectionId>>
		+ Mutate<T::AccountId, ItemConfig>,
{
	let caller: T::AccountId = whitelisted_caller();
	let caller_lookup = T::Lookup::unlookup(caller.clone());
	let ed = T::Currency::minimum_balance();
	let multiplier = BalanceOf::<T>::from(100u8);
	T::Currency::set_balance(&caller, ed * multiplier + T::Deposit::get() * multiplier);

	assert_ok!(T::Nfts::create_collection(&caller, &caller, &default_collection_config::<T>()));
	let collection = T::BenchmarkHelper::collection(0);
	assert_ok!(T::Nfts::mint_into(&collection, &nft_id, &caller, &ItemConfig::default(), true));
	(caller, caller_lookup)
}

fn assert_last_event<T: Config>(generic_event: <T as Config>::RuntimeEvent) {
	let events = frame_system::Pallet::<T>::events();
	let system_event: <T as frame_system::Config>::RuntimeEvent = generic_event.into();
	// compare to the last event record
	let frame_system::EventRecord { event, .. } = &events[events.len() - 1];
	assert_eq!(event, &system_event);
}

benchmarks! {
	where_clause {
		where
			T::Nfts: Create<T::AccountId, CollectionConfig<BalanceOf<T>, frame_system::pallet_prelude::BlockNumberFor::<T>, T::NftCollectionId>>
				+ Mutate<T::AccountId, ItemConfig>,
	}

	fractionalize {
		let asset = T::BenchmarkHelper::asset(0);
		let collection = T::BenchmarkHelper::collection(0);
		let nft = T::BenchmarkHelper::nft(0);
		let (caller, caller_lookup) = mint_nft::<T>(nft);
	}: _(SystemOrigin::Signed(caller.clone()), collection, nft, asset.clone(), caller_lookup, 1000u32.into())
	verify {
		assert_last_event::<T>(
			Event::NftFractionalized {
				nft_collection: collection,
				nft,
				fractions: 1000u32.into(),
				asset,
				beneficiary: caller,
			}.into()
		);
	}

	unify {
		let asset = T::BenchmarkHelper::asset(0);
		let collection = T::BenchmarkHelper::collection(0);
		let nft = T::BenchmarkHelper::nft(0);
		let (caller, caller_lookup) = mint_nft::<T>(nft);
		NftFractionalization::<T>::fractionalize(
			SystemOrigin::Signed(caller.clone()).into(),
			collection,
			nft,
			asset.clone(),
			caller_lookup.clone(),
			1000u32.into(),
		)?;
	}: _(SystemOrigin::Signed(caller.clone()), collection, nft, asset.clone(), caller_lookup)
	verify {
		assert_last_event::<T>(
			Event::NftUnified {
				nft_collection: collection,
				nft,
				asset,
				beneficiary: caller,
			}.into()
		);
	}

	impl_benchmark_test_suite!(NftFractionalization, crate::mock::new_test_ext(), crate::mock::Test);
}