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package dns01
import (
"sort"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLookupNameserversOK(t *testing.T) {
testCases := []struct {
fqdn string
nss []string
}{
{
fqdn: "books.google.com.ng.",
nss: []string{"ns1.google.com.", "ns2.google.com.", "ns3.google.com.", "ns4.google.com."},
},
{
fqdn: "www.google.com.",
nss: []string{"ns1.google.com.", "ns2.google.com.", "ns3.google.com.", "ns4.google.com."},
},
{
fqdn: "physics.georgetown.edu.",
nss: []string{"ns4.georgetown.edu.", "ns5.georgetown.edu.", "ns6.georgetown.edu."},
},
}
for _, test := range testCases {
test := test
t.Run(test.fqdn, func(t *testing.T) {
t.Parallel()
nss, err := lookupNameservers(test.fqdn)
require.NoError(t, err)
sort.Strings(nss)
sort.Strings(test.nss)
assert.EqualValues(t, test.nss, nss)
})
}
}
func TestLookupNameserversErr(t *testing.T) {
testCases := []struct {
desc string
fqdn string
error string
}{
{
desc: "invalid tld",
fqdn: "_null.n0n0.",
error: "could not determine the zone",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
_, err := lookupNameservers(test.fqdn)
require.Error(t, err)
assert.Contains(t, err.Error(), test.error)
})
}
}
var findXByFqdnTestCases = []struct {
desc string
fqdn string
zone string
primaryNs string
nameservers []string
expectedError string
}{
{
desc: "domain is a CNAME",
fqdn: "mail.google.com.",
zone: "google.com.",
primaryNs: "ns1.google.com.",
nameservers: recursiveNameservers,
},
{
desc: "domain is a non-existent subdomain",
fqdn: "foo.google.com.",
zone: "google.com.",
primaryNs: "ns1.google.com.",
nameservers: recursiveNameservers,
},
{
desc: "domain is a eTLD",
fqdn: "example.com.ac.",
zone: "ac.",
primaryNs: "a0.nic.ac.",
nameservers: recursiveNameservers,
},
{
desc: "domain is a cross-zone CNAME",
fqdn: "cross-zone-example.assets.sh.",
zone: "assets.sh.",
primaryNs: "gina.ns.cloudflare.com.",
nameservers: recursiveNameservers,
},
{
desc: "NXDOMAIN",
fqdn: "test.lego.zz.",
zone: "lego.zz.",
nameservers: []string{"8.8.8.8:53"},
expectedError: "could not find the start of authority for test.lego.zz.: NXDOMAIN",
},
{
desc: "several non existent nameservers",
fqdn: "mail.google.com.",
zone: "google.com.",
primaryNs: "ns1.google.com.",
nameservers: []string{":7053", ":8053", "8.8.8.8:53"},
},
{
desc: "only non-existent nameservers",
fqdn: "mail.google.com.",
zone: "google.com.",
nameservers: []string{":7053", ":8053", ":9053"},
expectedError: "could not find the start of authority for mail.google.com.: read udp",
},
{
desc: "no nameservers",
fqdn: "test.ldez.com.",
zone: "ldez.com.",
nameservers: []string{},
expectedError: "could not find the start of authority for test.ldez.com.",
},
}
func TestFindZoneByFqdnCustom(t *testing.T) {
for _, test := range findXByFqdnTestCases {
t.Run(test.desc, func(t *testing.T) {
ClearFqdnCache()
zone, err := FindZoneByFqdnCustom(test.fqdn, test.nameservers)
if test.expectedError != "" {
require.Error(t, err)
assert.Contains(t, err.Error(), test.expectedError)
} else {
require.NoError(t, err)
assert.Equal(t, test.zone, zone)
}
})
}
}
func TestFindPrimaryNsByFqdnCustom(t *testing.T) {
for _, test := range findXByFqdnTestCases {
t.Run(test.desc, func(t *testing.T) {
ClearFqdnCache()
ns, err := FindPrimaryNsByFqdnCustom(test.fqdn, test.nameservers)
if test.expectedError != "" {
require.Error(t, err)
assert.Contains(t, err.Error(), test.expectedError)
} else {
require.NoError(t, err)
assert.Equal(t, test.primaryNs, ns)
}
})
}
}
func TestResolveConfServers(t *testing.T) {
testCases := []struct {
fixture string
expected []string
defaults []string
}{
{
fixture: "fixtures/resolv.conf.1",
defaults: []string{"127.0.0.1:53"},
expected: []string{"10.200.3.249:53", "10.200.3.250:5353", "[2001:4860:4860::8844]:53", "[10.0.0.1]:5353"},
},
{
fixture: "fixtures/resolv.conf.nonexistant",
defaults: []string{"127.0.0.1:53"},
expected: []string{"127.0.0.1:53"},
},
}
for _, test := range testCases {
t.Run(test.fixture, func(t *testing.T) {
result := getNameservers(test.fixture, test.defaults)
sort.Strings(result)
sort.Strings(test.expected)
assert.Equal(t, test.expected, result)
})
}
}
|
