github.com/calmw/ethereum@v0.1.1/consensus/misc/eip4844_test.go (about)

     1  // Copyright 2023 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package misc
    18  
    19  import (
    20  	"fmt"
    21  	"math/big"
    22  	"testing"
    23  
    24  	"github.com/calmw/ethereum/params"
    25  )
    26  
    27  func TestCalcBlobFee(t *testing.T) {
    28  	tests := []struct {
    29  		excessDataGas int64
    30  		blobfee       int64
    31  	}{
    32  		{0, 1},
    33  		{1542706, 1},
    34  		{1542707, 2},
    35  		{10 * 1024 * 1024, 111},
    36  	}
    37  	have := CalcBlobFee(nil)
    38  	if have.Int64() != params.BlobTxMinDataGasprice {
    39  		t.Errorf("nil test: blobfee mismatch: have %v, want %v", have, params.BlobTxMinDataGasprice)
    40  	}
    41  	for i, tt := range tests {
    42  		have := CalcBlobFee(big.NewInt(tt.excessDataGas))
    43  		if have.Int64() != tt.blobfee {
    44  			t.Errorf("test %d: blobfee mismatch: have %v want %v", i, have, tt.blobfee)
    45  		}
    46  	}
    47  }
    48  
    49  func TestFakeExponential(t *testing.T) {
    50  	tests := []struct {
    51  		factor      int64
    52  		numerator   int64
    53  		denominator int64
    54  		want        int64
    55  	}{
    56  		// When numerator == 0 the return value should always equal the value of factor
    57  		{1, 0, 1, 1},
    58  		{38493, 0, 1000, 38493},
    59  		{0, 1234, 2345, 0}, // should be 0
    60  		{1, 2, 1, 6},       // approximate 7.389
    61  		{1, 4, 2, 6},
    62  		{1, 3, 1, 16}, // approximate 20.09
    63  		{1, 6, 2, 18},
    64  		{1, 4, 1, 49}, // approximate 54.60
    65  		{1, 8, 2, 50},
    66  		{10, 8, 2, 542}, // approximate 540.598
    67  		{11, 8, 2, 596}, // approximate 600.58
    68  		{1, 5, 1, 136},  // approximate 148.4
    69  		{1, 5, 2, 11},   // approximate 12.18
    70  		{2, 5, 2, 23},   // approximate 24.36
    71  		{1, 50000000, 2225652, 5709098764},
    72  	}
    73  	for i, tt := range tests {
    74  		f, n, d := big.NewInt(tt.factor), big.NewInt(tt.numerator), big.NewInt(tt.denominator)
    75  		original := fmt.Sprintf("%d %d %d", f, n, d)
    76  		have := fakeExponential(f, n, d)
    77  		if have.Int64() != tt.want {
    78  			t.Errorf("test %d: fake exponential mismatch: have %v want %v", i, have, tt.want)
    79  		}
    80  		later := fmt.Sprintf("%d %d %d", f, n, d)
    81  		if original != later {
    82  			t.Errorf("test %d: fake exponential modified arguments: have\n%v\nwant\n%v", i, later, original)
    83  		}
    84  	}
    85  }