github.com/xfond/eth-implementation@v1.8.9-0.20180514135602-f6bc65fc6811/rpc/types_test.go (about)

     1  // Copyright 2015 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 rpc
    18  
    19  import (
    20  	"encoding/json"
    21  	"testing"
    22  
    23  	"github.com/ethereum/go-ethereum/common/math"
    24  )
    25  
    26  func TestBlockNumberJSONUnmarshal(t *testing.T) {
    27  	tests := []struct {
    28  		input    string
    29  		mustFail bool
    30  		expected BlockNumber
    31  	}{
    32  		0:  {`"0x"`, true, BlockNumber(0)},
    33  		1:  {`"0x0"`, false, BlockNumber(0)},
    34  		2:  {`"0X1"`, false, BlockNumber(1)},
    35  		3:  {`"0x00"`, true, BlockNumber(0)},
    36  		4:  {`"0x01"`, true, BlockNumber(0)},
    37  		5:  {`"0x1"`, false, BlockNumber(1)},
    38  		6:  {`"0x12"`, false, BlockNumber(18)},
    39  		7:  {`"0x7fffffffffffffff"`, false, BlockNumber(math.MaxInt64)},
    40  		8:  {`"0x8000000000000000"`, true, BlockNumber(0)},
    41  		9:  {"0", true, BlockNumber(0)},
    42  		10: {`"ff"`, true, BlockNumber(0)},
    43  		11: {`"pending"`, false, PendingBlockNumber},
    44  		12: {`"latest"`, false, LatestBlockNumber},
    45  		13: {`"earliest"`, false, EarliestBlockNumber},
    46  		14: {`someString`, true, BlockNumber(0)},
    47  		15: {`""`, true, BlockNumber(0)},
    48  		16: {``, true, BlockNumber(0)},
    49  	}
    50  
    51  	for i, test := range tests {
    52  		var num BlockNumber
    53  		err := json.Unmarshal([]byte(test.input), &num)
    54  		if test.mustFail && err == nil {
    55  			t.Errorf("Test %d should fail", i)
    56  			continue
    57  		}
    58  		if !test.mustFail && err != nil {
    59  			t.Errorf("Test %d should pass but got err: %v", i, err)
    60  			continue
    61  		}
    62  		if num != test.expected {
    63  			t.Errorf("Test %d got unexpected value, want %d, got %d", i, test.expected, num)
    64  		}
    65  	}
    66  }