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
|
// Copyright 2019 The dexon-consensus Authors
// This file is part of the dexon-consensus library.
//
// The dexon-consensus library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus library 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 Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus library. If not, see
// <http://www.gnu.org/licenses/>.
package dexcon
import (
"math/big"
"testing"
"github.com/stretchr/testify/suite"
"github.com/dexon-foundation/dexon/common"
"github.com/dexon-foundation/dexon/core/state"
"github.com/dexon-foundation/dexon/core/vm"
"github.com/dexon-foundation/dexon/crypto"
"github.com/dexon-foundation/dexon/ethdb"
"github.com/dexon-foundation/dexon/params"
)
type GovStateFetcher struct {
statedb *state.StateDB
}
func (g *GovStateFetcher) GetGovStateHelperAtRound(_ uint64) *vm.GovernanceStateHelper {
return &vm.GovernanceStateHelper{g.statedb}
}
type DexconTestSuite struct {
suite.Suite
config *params.DexconConfig
memDB *ethdb.MemDatabase
stateDB *state.StateDB
s *vm.GovernanceStateHelper
}
func (d *DexconTestSuite) SetupTest() {
memDB := ethdb.NewMemDatabase()
stateDB, err := state.New(common.Hash{}, state.NewDatabase(memDB))
if err != nil {
panic(err)
}
d.memDB = memDB
d.stateDB = stateDB
d.s = &vm.GovernanceStateHelper{stateDB}
config := params.TestnetChainConfig.Dexcon
config.LockupPeriod = 1000
config.NextHalvingSupply = new(big.Int).Mul(big.NewInt(1e18), big.NewInt(2.5e9))
config.LastHalvedAmount = new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1.5e9))
config.MiningVelocity = 0.1875
config.RoundLength = 3600
config.MinBlockInterval = 1000
d.config = config
// Give governance contract balance so it will not be deleted because of being an empty state object.
stateDB.AddBalance(vm.GovernanceContractAddress, big.NewInt(1))
// Genesis CRS.
crs := crypto.Keccak256Hash([]byte(config.GenesisCRSText))
d.s.PushCRS(crs)
// Round 0 height.
d.s.PushRoundHeight(big.NewInt(0))
// Governance configuration.
d.s.UpdateConfiguration(config)
d.stateDB.Commit(true)
}
func (d *DexconTestSuite) TestBlockRewardCalculation() {
consensus := New()
consensus.SetGovStateFetcher(&GovStateFetcher{d.stateDB})
d.s.IncTotalStaked(big.NewInt(1e18))
// blockReard = miningVelocity * totalStaked * roundInterval / aYear / numBlocksInCurRound
// 0.1875 * 1e18 * 3600 * 1000 / (86400 * 1000 * 365 * 3600) = 5945585996.96
d.Require().Equal(big.NewInt(5945585996), consensus.calculateBlockReward(0, d.stateDB))
}
func TestDexcon(t *testing.T) {
suite.Run(t, new(DexconTestSuite))
}
|
