* Allow setting PetersburgBlock before chainhead if it is at the same block as ConstantinopleBlock * Add a negative test
		
			
				
	
	
		
			99 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			99 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package params
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import (
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	"math/big"
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	"reflect"
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	"testing"
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)
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func TestCheckCompatible(t *testing.T) {
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	type test struct {
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		stored, new *ChainConfig
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		head        uint64
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		wantErr     *ConfigCompatError
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	}
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	tests := []test{
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		{stored: AllEthashProtocolChanges, new: AllEthashProtocolChanges, head: 0, wantErr: nil},
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		{stored: AllEthashProtocolChanges, new: AllEthashProtocolChanges, head: 100, wantErr: nil},
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		{
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			stored:  &ChainConfig{EIP150Block: big.NewInt(10)},
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			new:     &ChainConfig{EIP150Block: big.NewInt(20)},
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			head:    9,
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			wantErr: nil,
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		},
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		{
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			stored: AllEthashProtocolChanges,
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			new:    &ChainConfig{HomesteadBlock: nil},
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			head:   3,
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			wantErr: &ConfigCompatError{
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				What:         "Homestead fork block",
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				StoredConfig: big.NewInt(0),
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				NewConfig:    nil,
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				RewindTo:     0,
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			},
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		},
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		{
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			stored: AllEthashProtocolChanges,
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			new:    &ChainConfig{HomesteadBlock: big.NewInt(1)},
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			head:   3,
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			wantErr: &ConfigCompatError{
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				What:         "Homestead fork block",
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				StoredConfig: big.NewInt(0),
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				NewConfig:    big.NewInt(1),
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				RewindTo:     0,
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			},
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		},
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		{
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			stored: &ChainConfig{HomesteadBlock: big.NewInt(30), EIP150Block: big.NewInt(10)},
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			new:    &ChainConfig{HomesteadBlock: big.NewInt(25), EIP150Block: big.NewInt(20)},
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			head:   25,
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			wantErr: &ConfigCompatError{
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				What:         "EIP150 fork block",
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				StoredConfig: big.NewInt(10),
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				NewConfig:    big.NewInt(20),
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				RewindTo:     9,
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			},
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		},
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		{
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			stored:  &ChainConfig{ConstantinopleBlock: big.NewInt(30)},
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			new:     &ChainConfig{ConstantinopleBlock: big.NewInt(30), PetersburgBlock: big.NewInt(30)},
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			head:    40,
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			wantErr: nil,
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		},
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		{
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			stored: &ChainConfig{ConstantinopleBlock: big.NewInt(30)},
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			new:    &ChainConfig{ConstantinopleBlock: big.NewInt(30), PetersburgBlock: big.NewInt(31)},
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			head:   40,
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			wantErr: &ConfigCompatError{
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				What:         "Petersburg fork block",
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				StoredConfig: nil,
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				NewConfig:    big.NewInt(31),
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				RewindTo:     30,
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			},
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		},
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	}
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	for _, test := range tests {
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		err := test.stored.CheckCompatible(test.new, test.head)
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		if !reflect.DeepEqual(err, test.wantErr) {
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			t.Errorf("error mismatch:\nstored: %v\nnew: %v\nhead: %v\nerr: %v\nwant: %v", test.stored, test.new, test.head, err, test.wantErr)
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		}
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	}
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}
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