github.com/n1ghtfa1l/go-vnt@v0.6.4-alpha.6/tests/difficulty_test_util.go (about)

     1  // Copyright 2017 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 tests
    18  
    19  import (
    20  	"fmt"
    21  	"math/big"
    22  
    23  	"github.com/vntchain/go-vnt/common"
    24  	"github.com/vntchain/go-vnt/common/math"
    25  	"github.com/vntchain/go-vnt/params"
    26  )
    27  
    28  //go:generate gencodec -type DifficultyTest -field-override difficultyTestMarshaling -out gen_difficultytest.go
    29  
    30  type DifficultyTest struct {
    31  	ParentTimestamp    *big.Int `json:"parentTimestamp"`
    32  	ParentDifficulty   *big.Int `json:"parentDifficulty"`
    33  	CurrentTimestamp   *big.Int `json:"currentTimestamp"`
    34  	CurrentBlockNumber uint64   `json:"currentBlockNumber"`
    35  	CurrentDifficulty  *big.Int `json:"currentDifficulty"`
    36  }
    37  
    38  type difficultyTestMarshaling struct {
    39  	ParentTimestamp    *math.HexOrDecimal256
    40  	ParentDifficulty   *math.HexOrDecimal256
    41  	CurrentTimestamp   *math.HexOrDecimal256
    42  	CurrentDifficulty  *math.HexOrDecimal256
    43  	CurrentBlockNumber math.HexOrDecimal64
    44  }
    45  
    46  func (test *DifficultyTest) Run(config *params.ChainConfig) error {
    47  	actual := common.Big1
    48  	exp := test.CurrentDifficulty
    49  
    50  	if actual.Cmp(exp) != 0 {
    51  		return fmt.Errorf("parent[time %v diff %v] child[time %v number %v] diff %v != expected %v",
    52  			test.ParentTimestamp, test.ParentDifficulty,
    53  			test.CurrentTimestamp, test.CurrentBlockNumber, actual, exp)
    54  	}
    55  	return nil
    56  
    57  }