github.com/halybang/go-ethereum@v1.0.5-0.20180325041310-3b262bc1367c/cmd/gwan/genesis_test.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of go-ethereum.
     3  //
     4  // go-ethereum is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU 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  // go-ethereum 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 General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU General Public License
    15  // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package main
    18  
    19  // import (
    20  // 	"io/ioutil"
    21  // 	"os"
    22  // 	"path/filepath"
    23  // 	"testing"
    24  // )
    25  
    26  // var customGenesisTests = []struct {
    27  // 	genesis string
    28  // 	query   string
    29  // 	result  string
    30  // }{
    31  // 	// Plain genesis file without anything extra
    32  // 	{
    33  // 		genesis: `{
    34  // 			"alloc"      : {},
    35  // 			"coinbase"   : "0x0000000000000000000000000000000000000000",
    36  // 			"difficulty" : "0x20000",
    37  // 			"extraData"  : "",
    38  // 			"gasLimit"   : "0x2fefd8",
    39  // 			"nonce"      : "0x0000000000000042",
    40  // 			"mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    41  // 			"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    42  // 			"timestamp"  : "0x00"
    43  // 		}`,
    44  // 		query:  "eth.getBlock(0).nonce",
    45  // 		result: "0x0000000000000042",
    46  // 	},
    47  // 	// Genesis file with an empty chain configuration (ensure missing fields work)
    48  // 	{
    49  // 		genesis: `{
    50  // 			"alloc"      : {},
    51  // 			"coinbase"   : "0x0000000000000000000000000000000000000000",
    52  // 			"difficulty" : "0x20000",
    53  // 			"extraData"  : "",
    54  // 			"gasLimit"   : "0x2fefd8",
    55  // 			"nonce"      : "0x0000000000000042",
    56  // 			"mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    57  // 			"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    58  // 			"timestamp"  : "0x00",
    59  // 			"config"     : {}
    60  // 		}`,
    61  // 		query:  "eth.getBlock(0).nonce",
    62  // 		result: "0x0000000000000042",
    63  // 	},
    64  // 	// Genesis file with specific chain configurations
    65  // 	{
    66  // 		genesis: `{
    67  // 			"alloc"      : {},
    68  // 			"coinbase"   : "0x0000000000000000000000000000000000000000",
    69  // 			"difficulty" : "0x20000",
    70  // 			"extraData"  : "",
    71  // 			"gasLimit"   : "0x2fefd8",
    72  // 			"nonce"      : "0x0000000000000042",
    73  // 			"mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    74  // 			"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    75  // 			"timestamp"  : "0x00",
    76  // 			"config"     : {
    77  // 				"homesteadBlock" : 314,
    78  // 				"daoForkBlock"   : 141,
    79  // 				"daoForkSupport" : true
    80  // 			},
    81  // 		}`,
    82  // 		query:  "eth.getBlock(0).nonce",
    83  // 		result: "0x0000000000000042",
    84  // 	},
    85  // }
    86  
    87  // Tests that initializing Geth with a custom genesis block and chain definitions
    88  // work properly.
    89  // func TestCustomGenesis(t *testing.T) {
    90  // 	for i, tt := range customGenesisTests {
    91  // 		// Create a temporary data directory to use and inspect later
    92  // 		datadir := tmpdir(t)
    93  // 		defer os.RemoveAll(datadir)
    94  
    95  // 		// Initialize the data directory with the custom genesis block
    96  // 		json := filepath.Join(datadir, "genesis.json")
    97  // 		if err := ioutil.WriteFile(json, []byte(tt.genesis), 0600); err != nil {
    98  // 			t.Fatalf("test %d: failed to write genesis file: %v", i, err)
    99  // 		}
   100  // 		runGeth(t, "--datadir", datadir, "init", json).WaitExit()
   101  
   102  // 		// Query the custom genesis block
   103  // 		geth := runGeth(t,
   104  // 			"--datadir", datadir, "--maxpeers", "0", "--port", "0",
   105  // 			"--nodiscover", "--nat", "none", "--ipcdisable",
   106  // 			"--exec", tt.query, "console")
   107  // 		geth.ExpectRegexp(tt.result)
   108  // 		geth.ExpectExit()
   109  // 	}
   110  // }