github.com/farazdagi/go-ethereum@v1.8.1/common/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 common
    18  
    19  import (
    20  	"encoding/json"
    21  	"math/big"
    22  	"strings"
    23  	"testing"
    24  )
    25  
    26  func TestBytesConversion(t *testing.T) {
    27  	bytes := []byte{5}
    28  	hash := BytesToHash(bytes)
    29  
    30  	var exp Hash
    31  	exp[31] = 5
    32  
    33  	if hash != exp {
    34  		t.Errorf("expected %x got %x", exp, hash)
    35  	}
    36  }
    37  
    38  func TestIsHexAddress(t *testing.T) {
    39  	tests := []struct {
    40  		str string
    41  		exp bool
    42  	}{
    43  		{"0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed", true},
    44  		{"5aaeb6053f3e94c9b9a09f33669435e7ef1beaed", true},
    45  		{"0X5aaeb6053f3e94c9b9a09f33669435e7ef1beaed", true},
    46  		{"0XAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", true},
    47  		{"0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", true},
    48  		{"0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed1", false},
    49  		{"0x5aaeb6053f3e94c9b9a09f33669435e7ef1beae", false},
    50  		{"5aaeb6053f3e94c9b9a09f33669435e7ef1beaed11", false},
    51  		{"0xxaaeb6053f3e94c9b9a09f33669435e7ef1beaed", false},
    52  	}
    53  
    54  	for _, test := range tests {
    55  		if result := IsHexAddress(test.str); result != test.exp {
    56  			t.Errorf("IsHexAddress(%s) == %v; expected %v",
    57  				test.str, result, test.exp)
    58  		}
    59  	}
    60  }
    61  
    62  func TestHashJsonValidation(t *testing.T) {
    63  	var tests = []struct {
    64  		Prefix string
    65  		Size   int
    66  		Error  string
    67  	}{
    68  		{"", 62, "json: cannot unmarshal hex string without 0x prefix into Go value of type common.Hash"},
    69  		{"0x", 66, "hex string has length 66, want 64 for common.Hash"},
    70  		{"0x", 63, "json: cannot unmarshal hex string of odd length into Go value of type common.Hash"},
    71  		{"0x", 0, "hex string has length 0, want 64 for common.Hash"},
    72  		{"0x", 64, ""},
    73  		{"0X", 64, ""},
    74  	}
    75  	for _, test := range tests {
    76  		input := `"` + test.Prefix + strings.Repeat("0", test.Size) + `"`
    77  		var v Hash
    78  		err := json.Unmarshal([]byte(input), &v)
    79  		if err == nil {
    80  			if test.Error != "" {
    81  				t.Errorf("%s: error mismatch: have nil, want %q", input, test.Error)
    82  			}
    83  		} else {
    84  			if err.Error() != test.Error {
    85  				t.Errorf("%s: error mismatch: have %q, want %q", input, err, test.Error)
    86  			}
    87  		}
    88  	}
    89  }
    90  
    91  func TestAddressUnmarshalJSON(t *testing.T) {
    92  	var tests = []struct {
    93  		Input     string
    94  		ShouldErr bool
    95  		Output    *big.Int
    96  	}{
    97  		{"", true, nil},
    98  		{`""`, true, nil},
    99  		{`"0x"`, true, nil},
   100  		{`"0x00"`, true, nil},
   101  		{`"0xG000000000000000000000000000000000000000"`, true, nil},
   102  		{`"0x0000000000000000000000000000000000000000"`, false, big.NewInt(0)},
   103  		{`"0x0000000000000000000000000000000000000010"`, false, big.NewInt(16)},
   104  	}
   105  	for i, test := range tests {
   106  		var v Address
   107  		err := json.Unmarshal([]byte(test.Input), &v)
   108  		if err != nil && !test.ShouldErr {
   109  			t.Errorf("test #%d: unexpected error: %v", i, err)
   110  		}
   111  		if err == nil {
   112  			if test.ShouldErr {
   113  				t.Errorf("test #%d: expected error, got none", i)
   114  			}
   115  			if v.Big().Cmp(test.Output) != 0 {
   116  				t.Errorf("test #%d: address mismatch: have %v, want %v", i, v.Big(), test.Output)
   117  			}
   118  		}
   119  	}
   120  }
   121  
   122  func TestAddressHexChecksum(t *testing.T) {
   123  	var tests = []struct {
   124  		Input  string
   125  		Output string
   126  	}{
   127  		// Test cases from https://github.com/ethereum/EIPs/blob/master/EIPS/eip-55.md#specification
   128  		{"0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed", "0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed"},
   129  		{"0xfb6916095ca1df60bb79ce92ce3ea74c37c5d359", "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359"},
   130  		{"0xdbf03b407c01e7cd3cbea99509d93f8dddc8c6fb", "0xdbF03B407c01E7cD3CBea99509d93f8DDDC8C6FB"},
   131  		{"0xd1220a0cf47c7b9be7a2e6ba89f429762e7b9adb", "0xD1220A0cf47c7B9Be7A2E6BA89F429762e7b9aDb"},
   132  		// Ensure that non-standard length input values are handled correctly
   133  		{"0xa", "0x000000000000000000000000000000000000000A"},
   134  		{"0x0a", "0x000000000000000000000000000000000000000A"},
   135  		{"0x00a", "0x000000000000000000000000000000000000000A"},
   136  		{"0x000000000000000000000000000000000000000a", "0x000000000000000000000000000000000000000A"},
   137  	}
   138  	for i, test := range tests {
   139  		output := HexToAddress(test.Input).Hex()
   140  		if output != test.Output {
   141  			t.Errorf("test #%d: failed to match when it should (%s != %s)", i, output, test.Output)
   142  		}
   143  	}
   144  }
   145  
   146  func BenchmarkAddressHex(b *testing.B) {
   147  	testAddr := HexToAddress("0x5aaeb6053f3e94c9b9a09f33669435e7ef1beaed")
   148  	for n := 0; n < b.N; n++ {
   149  		testAddr.Hex()
   150  	}
   151  }