github.com/philhug/dnscontrol@v0.2.4-0.20180625181521-921fa9849001/pkg/transform/arpa_test.go (about)

     1  package transform
     2  
     3  import "testing"
     4  import "fmt"
     5  
     6  func TestReverse(t *testing.T) {
     7  	var tests = []struct {
     8  		in      string
     9  		isError bool
    10  		out     string
    11  	}{
    12  		{"174.136.107.0/24", false, "107.136.174.in-addr.arpa"},
    13  		{"174.136.107.1/24", true, "107.136.174.in-addr.arpa"},
    14  
    15  		{"174.136.0.0/16", false, "136.174.in-addr.arpa"},
    16  		{"174.136.43.0/16", true, "136.174.in-addr.arpa"},
    17  
    18  		{"174.0.0.0/8", false, "174.in-addr.arpa"},
    19  		{"174.136.43.0/8", true, "174.in-addr.arpa"},
    20  		{"174.136.0.44/8", true, "174.in-addr.arpa"},
    21  		{"174.136.45.45/8", true, "174.in-addr.arpa"},
    22  
    23  		{"2001::/16", false, "1.0.0.2.ip6.arpa"},
    24  		{"2001:0db8:0123:4567:89ab:cdef:1234:5670/124", false, "7.6.5.4.3.2.1.f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.8.b.d.0.1.0.0.2.ip6.arpa"},
    25  
    26  		{"174.136.107.14/32", false, "14.107.136.174.in-addr.arpa"},
    27  		{"2001:0db8:0123:4567:89ab:cdef:1234:5678/128", false, "8.7.6.5.4.3.2.1.f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.8.b.d.0.1.0.0.2.ip6.arpa"},
    28  
    29  		// IPv4 "Classless in-addr.arpa delegation" RFC2317.
    30  		// From examples in the RFC:
    31  		{"192.0.2.0/25", false, "0/25.2.0.192.in-addr.arpa"},
    32  		{"192.0.2.128/26", false, "128/26.2.0.192.in-addr.arpa"},
    33  		{"192.0.2.192/26", false, "192/26.2.0.192.in-addr.arpa"},
    34  		// All the base cases:
    35  		{"174.1.0.0/25", false, "0/25.0.1.174.in-addr.arpa"},
    36  		{"174.1.0.0/26", false, "0/26.0.1.174.in-addr.arpa"},
    37  		{"174.1.0.0/27", false, "0/27.0.1.174.in-addr.arpa"},
    38  		{"174.1.0.0/28", false, "0/28.0.1.174.in-addr.arpa"},
    39  		{"174.1.0.0/29", false, "0/29.0.1.174.in-addr.arpa"},
    40  		{"174.1.0.0/30", false, "0/30.0.1.174.in-addr.arpa"},
    41  		{"174.1.0.0/31", false, "0/31.0.1.174.in-addr.arpa"},
    42  		// /25 (all cases)
    43  		{"174.1.0.0/25", false, "0/25.0.1.174.in-addr.arpa"},
    44  		{"174.1.0.128/25", false, "128/25.0.1.174.in-addr.arpa"},
    45  		// /26 (all cases)
    46  		{"174.1.0.0/26", false, "0/26.0.1.174.in-addr.arpa"},
    47  		{"174.1.0.64/26", false, "64/26.0.1.174.in-addr.arpa"},
    48  		{"174.1.0.128/26", false, "128/26.0.1.174.in-addr.arpa"},
    49  		{"174.1.0.192/26", false, "192/26.0.1.174.in-addr.arpa"},
    50  		// /27 (all cases)
    51  		{"174.1.0.0/27", false, "0/27.0.1.174.in-addr.arpa"},
    52  		{"174.1.0.32/27", false, "32/27.0.1.174.in-addr.arpa"},
    53  		{"174.1.0.64/27", false, "64/27.0.1.174.in-addr.arpa"},
    54  		{"174.1.0.96/27", false, "96/27.0.1.174.in-addr.arpa"},
    55  		{"174.1.0.128/27", false, "128/27.0.1.174.in-addr.arpa"},
    56  		{"174.1.0.160/27", false, "160/27.0.1.174.in-addr.arpa"},
    57  		{"174.1.0.192/27", false, "192/27.0.1.174.in-addr.arpa"},
    58  		{"174.1.0.224/27", false, "224/27.0.1.174.in-addr.arpa"},
    59  		// /28 (first 2, last 2)
    60  		{"174.1.0.0/28", false, "0/28.0.1.174.in-addr.arpa"},
    61  		{"174.1.0.16/28", false, "16/28.0.1.174.in-addr.arpa"},
    62  		{"174.1.0.224/28", false, "224/28.0.1.174.in-addr.arpa"},
    63  		{"174.1.0.240/28", false, "240/28.0.1.174.in-addr.arpa"},
    64  		// /29 (first 2 cases)
    65  		{"174.1.0.0/29", false, "0/29.0.1.174.in-addr.arpa"},
    66  		{"174.1.0.8/29", false, "8/29.0.1.174.in-addr.arpa"},
    67  		// /30 (first 2 cases)
    68  		{"174.1.0.0/30", false, "0/30.0.1.174.in-addr.arpa"},
    69  		{"174.1.0.4/30", false, "4/30.0.1.174.in-addr.arpa"},
    70  		// /31 (first 2 cases)
    71  		{"174.1.0.0/31", false, "0/31.0.1.174.in-addr.arpa"},
    72  		{"174.1.0.2/31", false, "2/31.0.1.174.in-addr.arpa"},
    73  
    74  		// Error Cases:
    75  		{"0.0.0.0/0", true, ""},
    76  		{"2001::/0", true, ""},
    77  		{"4.5/16", true, ""},
    78  		{"foo.com", true, ""},
    79  	}
    80  	for i, tst := range tests {
    81  		t.Run(fmt.Sprintf("%d--%s", i, tst.in), func(t *testing.T) {
    82  			d, err := ReverseDomainName(tst.in)
    83  			if err != nil && !tst.isError {
    84  				t.Error("Should not have errored ", err)
    85  			} else if tst.isError && err == nil {
    86  				t.Errorf("Should have errored, but didn't. Got %s", d)
    87  			} else if (!tst.isError) && d != tst.out {
    88  				t.Errorf("Expected '%s' but got '%s'", tst.out, d)
    89  			}
    90  		})
    91  	}
    92  }