115 lines
4.0 KiB
Go
115 lines
4.0 KiB
Go
// Copyright 2023 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package misc
|
|
|
|
import (
|
|
"fmt"
|
|
"math/big"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
func TestCalcExcessDataGas(t *testing.T) {
|
|
var tests = []struct {
|
|
excess uint64
|
|
blobs uint64
|
|
want uint64
|
|
}{
|
|
// The excess data gas should not increase from zero if the used blob
|
|
// slots are below - or equal - to the target.
|
|
{0, 0, 0},
|
|
{0, 1, 0},
|
|
{0, params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob, 0},
|
|
|
|
// If the target data gas is exceeded, the excessDataGas should increase
|
|
// by however much it was overshot
|
|
{0, (params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob) + 1, params.BlobTxDataGasPerBlob},
|
|
{1, (params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob) + 1, params.BlobTxDataGasPerBlob + 1},
|
|
{1, (params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob) + 2, 2*params.BlobTxDataGasPerBlob + 1},
|
|
|
|
// The excess data gas should decrease by however much the target was
|
|
// under-shot, capped at zero.
|
|
{params.BlobTxTargetDataGasPerBlock, params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob, params.BlobTxTargetDataGasPerBlock},
|
|
{params.BlobTxTargetDataGasPerBlock, (params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob) - 1, params.BlobTxDataGasPerBlob},
|
|
{params.BlobTxTargetDataGasPerBlock, (params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob) - 2, 0},
|
|
{params.BlobTxDataGasPerBlob - 1, (params.BlobTxTargetDataGasPerBlock / params.BlobTxDataGasPerBlob) - 1, 0},
|
|
}
|
|
for _, tt := range tests {
|
|
result := CalcExcessDataGas(tt.excess, tt.blobs*params.BlobTxDataGasPerBlob)
|
|
if result != tt.want {
|
|
t.Errorf("excess data gas mismatch: have %v, want %v", result, tt.want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCalcBlobFee(t *testing.T) {
|
|
tests := []struct {
|
|
excessDataGas uint64
|
|
blobfee int64
|
|
}{
|
|
{0, 1},
|
|
{1542706, 1},
|
|
{1542707, 2},
|
|
{10 * 1024 * 1024, 111},
|
|
}
|
|
for i, tt := range tests {
|
|
have := CalcBlobFee(tt.excessDataGas)
|
|
if have.Int64() != tt.blobfee {
|
|
t.Errorf("test %d: blobfee mismatch: have %v want %v", i, have, tt.blobfee)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestFakeExponential(t *testing.T) {
|
|
tests := []struct {
|
|
factor int64
|
|
numerator int64
|
|
denominator int64
|
|
want int64
|
|
}{
|
|
// When numerator == 0 the return value should always equal the value of factor
|
|
{1, 0, 1, 1},
|
|
{38493, 0, 1000, 38493},
|
|
{0, 1234, 2345, 0}, // should be 0
|
|
{1, 2, 1, 6}, // approximate 7.389
|
|
{1, 4, 2, 6},
|
|
{1, 3, 1, 16}, // approximate 20.09
|
|
{1, 6, 2, 18},
|
|
{1, 4, 1, 49}, // approximate 54.60
|
|
{1, 8, 2, 50},
|
|
{10, 8, 2, 542}, // approximate 540.598
|
|
{11, 8, 2, 596}, // approximate 600.58
|
|
{1, 5, 1, 136}, // approximate 148.4
|
|
{1, 5, 2, 11}, // approximate 12.18
|
|
{2, 5, 2, 23}, // approximate 24.36
|
|
{1, 50000000, 2225652, 5709098764},
|
|
}
|
|
for i, tt := range tests {
|
|
f, n, d := big.NewInt(tt.factor), big.NewInt(tt.numerator), big.NewInt(tt.denominator)
|
|
original := fmt.Sprintf("%d %d %d", f, n, d)
|
|
have := fakeExponential(f, n, d)
|
|
if have.Int64() != tt.want {
|
|
t.Errorf("test %d: fake exponential mismatch: have %v want %v", i, have, tt.want)
|
|
}
|
|
later := fmt.Sprintf("%d %d %d", f, n, d)
|
|
if original != later {
|
|
t.Errorf("test %d: fake exponential modified arguments: have\n%v\nwant\n%v", i, later, original)
|
|
}
|
|
}
|
|
}
|