github.com/mysteriumnetwork/node@v0.0.0-20240516044423-365054f76801/core/connection/dns_option_test.go (about)

     1  /*
     2   * Copyright (C) 2019 The "MysteriumNetwork/node" Authors.
     3   *
     4   * This program 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   * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
    16   */
    17  
    18  package connection
    19  
    20  import (
    21  	"testing"
    22  
    23  	"github.com/stretchr/testify/assert"
    24  )
    25  
    26  func TestNewDNSOption(t *testing.T) {
    27  	assert := assert.New(t)
    28  	tests := []struct {
    29  		input     string
    30  		expect    DNSOption
    31  		expectErr bool
    32  	}{
    33  		{input: "auto", expect: DNSOptionAuto},
    34  		{input: "provider", expect: DNSOptionProvider},
    35  		{input: "system", expect: DNSOptionSystem},
    36  		{input: "1.1.1.1,9.9.9.9", expect: DNSOption("1.1.1.1,9.9.9.9")},
    37  		{input: "1.1.1.1", expect: DNSOption("1.1.1.1")},
    38  		{input: "", expect: DNSOption("")},
    39  		{input: "AA", expectErr: true},
    40  		{input: "512.512.512.512", expectErr: true},
    41  		{input: "1.1.1.1,512.512.512.512", expectErr: true},
    42  	}
    43  	for i, tt := range tests {
    44  		option, err := NewDNSOption(tt.input)
    45  		assert.Equal(tt.expectErr, err != nil, "%v: expected err = %v, actual err = %v", i, tt.expectErr, err)
    46  		assert.Equal(tt.expect, option)
    47  	}
    48  }
    49  
    50  func TestDNSOption_UnmarshalJSON(t *testing.T) {
    51  	assert := assert.New(t)
    52  	tests := []struct {
    53  		input        string
    54  		expectOption DNSOption
    55  		expectErr    bool
    56  	}{
    57  		{input: "\"auto\"", expectOption: DNSOptionAuto},
    58  		{input: "\"provider\"", expectOption: DNSOptionProvider},
    59  		{input: "\"system\"", expectOption: DNSOptionSystem},
    60  		{input: "\"1.1.1.1,9.9.9.9\"", expectOption: DNSOption("1.1.1.1,9.9.9.9")},
    61  		{input: "\"9.9.9.9\"", expectOption: DNSOption("9.9.9.9")},
    62  		{input: "\"\"", expectOption: DNSOption("")},
    63  		{input: "", expectErr: true},
    64  		{input: "\"AA\"", expectErr: true},
    65  		{input: "\"512.512.512.512\"", expectErr: true},
    66  		{input: "\"1.1.1.1,512.512.512.512\"", expectErr: true},
    67  	}
    68  	for i, tt := range tests {
    69  		var option DNSOption
    70  		err := option.UnmarshalJSON([]byte(tt.input))
    71  		assert.Equal(tt.expectErr, err != nil, "%v: expected err = %v, actual err = %v", i, tt.expectErr, err)
    72  		assert.Equal(tt.expectOption, option)
    73  	}
    74  }
    75  
    76  func TestDNSOption_Exact(t *testing.T) {
    77  	assert := assert.New(t)
    78  	tests := []struct {
    79  		option        DNSOption
    80  		expectServers []string
    81  		expectOK      bool
    82  	}{
    83  		{option: DNSOptionAuto, expectOK: false},
    84  		{option: DNSOptionProvider, expectOK: false},
    85  		{option: DNSOptionSystem, expectOK: false},
    86  		{option: DNSOption("1.1.1.1,9.9.9.9"), expectServers: []string{"1.1.1.1", "9.9.9.9"}, expectOK: true},
    87  		{option: DNSOption("9.9.9.9"), expectServers: []string{"9.9.9.9"}, expectOK: true},
    88  		{option: DNSOption(""), expectServers: nil, expectOK: true},
    89  	}
    90  	for _, tt := range tests {
    91  		servers, ok := tt.option.Exact()
    92  		assert.Equal(tt.expectOK, ok)
    93  		assert.Equal(tt.expectServers, servers)
    94  	}
    95  }