github.com/cheng762/platon-go@v1.8.17-0.20190529111256-7deff2d7be26/cmd/platon/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  var customGenesisTests = []struct {
    20  	genesis string
    21  	query   string
    22  	result  string
    23  }{
    24  	// Plain genesis file without anything extra
    25  	{
    26  		genesis: `{
    27  			"alloc"      : {},
    28  			"coinbase"   : "0x0000000000000000000000000000000000000000",
    29  			"difficulty" : "0x20000",
    30  			"extraData"  : "",
    31  			"gasLimit"   : "0x2fefd8",
    32  			"nonce"      : "0x0000000000000042",
    33  			"mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    34  			"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    35  			"timestamp"  : "0x00"
    36  		}`,
    37  		query:  "eth.getBlock(0).nonce",
    38  		result: "0x0000000000000042",
    39  	},
    40  	// Genesis file with an empty chain configuration (ensure missing fields work)
    41  	{
    42  		genesis: `{
    43  			"alloc"      : {},
    44  			"coinbase"   : "0x0000000000000000000000000000000000000000",
    45  			"difficulty" : "0x20000",
    46  			"extraData"  : "",
    47  			"gasLimit"   : "0x2fefd8",
    48  			"nonce"      : "0x0000000000000042",
    49  			"mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    50  			"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    51  			"timestamp"  : "0x00",
    52  			"config"     : {}
    53  		}`,
    54  		query:  "eth.getBlock(0).nonce",
    55  		result: "0x0000000000000042",
    56  	},
    57  	// Genesis file with specific chain configurations
    58  	{
    59  		genesis: `{
    60  			"alloc"      : {},
    61  			"coinbase"   : "0x0000000000000000000000000000000000000000",
    62  			"difficulty" : "0x20000",
    63  			"extraData"  : "",
    64  			"gasLimit"   : "0x2fefd8",
    65  			"nonce"      : "0x0000000000000042",
    66  			"mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
    67  			"parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
    68  			"timestamp"  : "0x00",
    69  			"config"     : {
    70  				"homesteadBlock" : 314,
    71  				"daoForkBlock"   : 141,
    72  				"daoForkSupport" : true
    73  			}
    74  		}`,
    75  		query:  "eth.getBlock(0).nonce",
    76  		result: "0x0000000000000042",
    77  	},
    78  }
    79  
    80  // Tests that initializing Geth with a custom genesis block and chain definitions
    81  // work properly.
    82  /*func TestCustomGenesis(t *testing.T) {
    83  	for i, tt := range customGenesisTests {
    84  		// Create a temporary data directory to use and inspect later
    85  		datadir := tmpdir(t)
    86  		defer os.RemoveAll(datadir)
    87  
    88  		// Initialize the data directory with the custom genesis block
    89  		json := filepath.Join(datadir, "genesis.json")
    90  		if err := ioutil.WriteFile(json, []byte(tt.genesis), 0600); err != nil {
    91  			t.Fatalf("test %d: failed to write genesis file: %v", i, err)
    92  		}
    93  		runGeth(t, "--datadir", datadir, "init", json).WaitExit()
    94  
    95  		// Query the custom genesis block
    96  		geth := runGeth(t,
    97  			"--datadir", datadir, "--maxpeers", "0", "--port", "0",
    98  			"--nodiscover", "--nat", "none", "--ipcdisable",
    99  			"--exec", tt.query, "console")
   100  		geth.ExpectRegexp(tt.result)
   101  		geth.ExpectExit()
   102  	}
   103  }*/