github.com/ethereum/go-ethereum@v1.16.1/cmd/geth/chaincmd_test.go (about)

     1  // Copyright 2025 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 "testing"
    20  
    21  func TestParseRange(t *testing.T) {
    22  	var cases = []struct {
    23  		input    string
    24  		valid    bool
    25  		expStart uint64
    26  		expEnd   uint64
    27  	}{
    28  		{
    29  			input:    "0",
    30  			valid:    true,
    31  			expStart: 0,
    32  			expEnd:   0,
    33  		},
    34  		{
    35  			input:    "500",
    36  			valid:    true,
    37  			expStart: 500,
    38  			expEnd:   500,
    39  		},
    40  		{
    41  			input:    "-1",
    42  			valid:    false,
    43  			expStart: 0,
    44  			expEnd:   0,
    45  		},
    46  		{
    47  			input:    "1-1",
    48  			valid:    true,
    49  			expStart: 1,
    50  			expEnd:   1,
    51  		},
    52  		{
    53  			input:    "0-1",
    54  			valid:    true,
    55  			expStart: 0,
    56  			expEnd:   1,
    57  		},
    58  		{
    59  			input:    "1-0",
    60  			valid:    false,
    61  			expStart: 0,
    62  			expEnd:   0,
    63  		},
    64  		{
    65  			input:    "1-1000",
    66  			valid:    true,
    67  			expStart: 1,
    68  			expEnd:   1000,
    69  		},
    70  		{
    71  			input:    "1-1-",
    72  			valid:    false,
    73  			expStart: 0,
    74  			expEnd:   0,
    75  		},
    76  		{
    77  			input:    "-1-1",
    78  			valid:    false,
    79  			expStart: 0,
    80  			expEnd:   0,
    81  		},
    82  	}
    83  	for _, c := range cases {
    84  		start, end, valid := parseRange(c.input)
    85  		if valid != c.valid {
    86  			t.Errorf("Unexpected result, want: %t, got: %t", c.valid, valid)
    87  			continue
    88  		}
    89  		if valid {
    90  			if c.expStart != start {
    91  				t.Errorf("Unexpected start, want: %d, got: %d", c.expStart, start)
    92  			}
    93  			if c.expEnd != end {
    94  				t.Errorf("Unexpected end, want: %d, got: %d", c.expEnd, end)
    95  			}
    96  		}
    97  	}
    98  }