88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
package dns
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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const normal string = `
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# Comment
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domain somedomain.com
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nameserver 10.28.10.2
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nameserver 11.28.10.1
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`
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const missingNewline string = `
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domain somedomain.com
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nameserver 10.28.10.2
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nameserver 11.28.10.1` // <- NOTE: NO newline.
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func testConfig(t *testing.T, data string) {
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tempDir, err := ioutil.TempDir("", "")
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if err != nil {
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t.Fatalf("tempDir: %v", err)
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}
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defer os.RemoveAll(tempDir)
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path := filepath.Join(tempDir, "resolv.conf")
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if err := ioutil.WriteFile(path, []byte(data), 0644); err != nil {
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t.Fatalf("writeFile: %v", err)
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}
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cc, err := ClientConfigFromFile(path)
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if err != nil {
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t.Errorf("error parsing resolv.conf: %v", err)
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}
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if l := len(cc.Servers); l != 2 {
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t.Errorf("incorrect number of nameservers detected: %d", l)
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}
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if l := len(cc.Search); l != 1 {
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t.Errorf("domain directive not parsed correctly: %v", cc.Search)
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} else {
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if cc.Search[0] != "somedomain.com" {
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t.Errorf("domain is unexpected: %v", cc.Search[0])
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}
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}
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}
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func TestNameserver(t *testing.T) { testConfig(t, normal) }
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func TestMissingFinalNewLine(t *testing.T) { testConfig(t, missingNewline) }
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func TestNameList(t *testing.T) {
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cfg := ClientConfig{
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Ndots: 1,
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}
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// fqdn should be only result returned
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names := cfg.NameList("miek.nl.")
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if len(names) != 1 {
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t.Errorf("NameList returned != 1 names: %v", names)
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} else if names[0] != "miek.nl." {
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t.Errorf("NameList didn't return sent fqdn domain: %v", names[0])
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}
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cfg.Search = []string{
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"test",
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}
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// Sent domain has NDots and search
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names = cfg.NameList("miek.nl")
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if len(names) != 2 {
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t.Errorf("NameList returned != 2 names: %v", names)
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} else if names[0] != "miek.nl." {
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t.Errorf("NameList didn't return sent domain first: %v", names[0])
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} else if names[1] != "miek.nl.test." {
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t.Errorf("NameList didn't return search last: %v", names[1])
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}
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cfg.Ndots = 2
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// Sent domain has less than NDots and search
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names = cfg.NameList("miek.nl")
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if len(names) != 2 {
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t.Errorf("NameList returned != 2 names: %v", names)
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} else if names[0] != "miek.nl.test." {
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t.Errorf("NameList didn't return search first: %v", names[0])
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} else if names[1] != "miek.nl." {
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t.Errorf("NameList didn't return sent domain last: %v", names[1])
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}
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}
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