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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package testing
import (
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/data/bookkeeping"
"github.com/algorand/go-algorand/ledger/ledgercore"
"github.com/algorand/go-algorand/protocol"
)
// testGenesisCfg provides a configuration object for NewTestGenesis.
type testGenesisCfg struct {
rewardsPoolAmount basics.MicroAlgos
}
// TestGenesisOption provides functional options for testGenesisCfg.
type TestGenesisOption func(*testGenesisCfg)
// TestGenesisRewardsPoolSize configures the rewards pool size in the genesis block.
func TestGenesisRewardsPoolSize(amount basics.MicroAlgos) TestGenesisOption {
return func(cfg *testGenesisCfg) { cfg.rewardsPoolAmount = amount }
}
// NewTestGenesis creates a bunch of accounts, splits up 10B algos
// between them and the rewardspool and feesink, and gives out the
// addresses and secrets it creates to enable tests. For special
// scenarios, manipulate these return values before using newTestLedger.
func NewTestGenesis(opts ...TestGenesisOption) (bookkeeping.GenesisBalances, []basics.Address, []*crypto.SignatureSecrets) {
var cfg testGenesisCfg
for _, opt := range opts {
opt(&cfg)
}
// irrelevant, but deterministic
sink, err := basics.UnmarshalChecksumAddress("YTPRLJ2KK2JRFSZZNAF57F3K5Y2KCG36FZ5OSYLW776JJGAUW5JXJBBD7Q")
if err != nil {
panic(err)
}
rewards, err := basics.UnmarshalChecksumAddress("242H5OXHUEBYCGGWB3CQ6AZAMQB5TMCWJGHCGQOZPEIVQJKOO7NZXUXDQA")
if err != nil {
panic(err)
}
const count = 10
addrs := make([]basics.Address, count)
secrets := make([]*crypto.SignatureSecrets, count)
accts := make(map[basics.Address]basics.AccountData)
// 10 billion microalgos, across N accounts and pool and sink
amount := 10 * 1000000000 * 1000000 / uint64(count+2)
for i := 0; i < count; i++ {
// Create deterministic addresses, so that output stays the same, run to run.
var seed crypto.Seed
seed[0] = byte(i)
secrets[i] = crypto.GenerateSignatureSecrets(seed)
addrs[i] = basics.Address(secrets[i].SignatureVerifier)
adata := basics.AccountData{
MicroAlgos: basics.MicroAlgos{Raw: amount},
}
accts[addrs[i]] = adata
}
accts[sink] = basics.AccountData{
MicroAlgos: basics.MicroAlgos{Raw: amount},
Status: basics.NotParticipating,
}
poolBal := basics.MicroAlgos{Raw: amount}
if cfg.rewardsPoolAmount.Raw > 0 {
poolBal = cfg.rewardsPoolAmount
}
accts[rewards] = basics.AccountData{
MicroAlgos: poolBal,
}
genBalances := bookkeeping.MakeGenesisBalances(accts, sink, rewards)
return genBalances, addrs, secrets
}
// Genesis creates a genesis state for naccts accounts using the ConsensusCurrentVersion
func Genesis(naccts int) (ledgercore.InitState, []basics.Address, []*crypto.SignatureSecrets) {
return GenesisWithProto(naccts, protocol.ConsensusCurrentVersion)
}
// GenesisWithProto creates a genesis state for naccts accounts using the proto consensus protocol
func GenesisWithProto(naccts int, proto protocol.ConsensusVersion) (ledgercore.InitState, []basics.Address, []*crypto.SignatureSecrets) {
blk := bookkeeping.Block{}
blk.CurrentProtocol = proto
blk.BlockHeader.GenesisID = "test"
blk.FeeSink = testSinkAddr
blk.RewardsPool = testPoolAddr
crypto.RandBytes(blk.BlockHeader.GenesisHash[:])
addrs := make([]basics.Address, 0, naccts)
keys := make([]*crypto.SignatureSecrets, 0, naccts)
accts := make(map[basics.Address]basics.AccountData)
// 10 billion microalgos, across N accounts and pool and sink
amount := 10 * 1000000000 * 1000000 / uint64(naccts+2)
var seed crypto.Seed
crypto.RandBytes(seed[:])
for i := 0; i < naccts; i++ {
seed[0] = byte(i)
seed[1] = byte(i >> 8)
seed[2] = byte(i >> 16)
seed[3] = byte(i >> 24)
key := crypto.GenerateSignatureSecrets(seed)
addr := basics.Address(key.SignatureVerifier)
keys = append(keys, key)
addrs = append(addrs, addr)
adata := basics.AccountData{}
adata.MicroAlgos.Raw = amount //1000 * 1000 * 1000 * 1000 / uint64(naccts)
accts[addr] = adata
}
pooldata := basics.AccountData{}
pooldata.MicroAlgos.Raw = amount //1000 * 1000 * 1000 * 1000
pooldata.Status = basics.NotParticipating
accts[testPoolAddr] = pooldata
sinkdata := basics.AccountData{}
sinkdata.MicroAlgos.Raw = amount //1000 * 1000 * 1000 * 1000
sinkdata.Status = basics.NotParticipating
accts[testSinkAddr] = sinkdata
genesisHash := blk.BlockHeader.GenesisHash
incentivePoolBalanceAtGenesis := pooldata.MicroAlgos
var initialRewardsPerRound uint64
params := config.Consensus[proto]
if params.InitialRewardsRateCalculation {
initialRewardsPerRound = basics.SubSaturate(incentivePoolBalanceAtGenesis.Raw, params.MinBalance) / uint64(params.RewardsRateRefreshInterval)
} else {
initialRewardsPerRound = incentivePoolBalanceAtGenesis.Raw / uint64(params.RewardsRateRefreshInterval)
}
blk.RewardsRate = initialRewardsPerRound
return ledgercore.InitState{Block: blk, Accounts: accts, GenesisHash: genesisHash}, addrs, keys
}
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