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services_test.go
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services_test.go
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package narcissus
import (
"fmt"
"log"
"os"
"testing"
"honnef.co/go/augeas"
)
func TestParseService(t *testing.T) {
aug, err := augeas.New(fakeroot, "", augeas.None)
if err != nil {
t.Fatal("Failed to create Augeas handler")
}
n := New(&aug)
// Test one service
service, err := n.NewService("ssh", "tcp")
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
if service.Port != 22 {
t.Errorf("Expected port 22, got %v", service.Port)
}
if service.Comment != "SSH Remote Login Protocol" {
t.Errorf("Expected SSH comment, got %s", service.Comment)
}
}
func TestParseServices(t *testing.T) {
aug, err := augeas.New(fakeroot, "", augeas.None)
if err != nil {
t.Fatal("Failed to create Augeas handler")
}
n := New(&aug)
services, err := n.NewServices()
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
if len(services.Services) != 557 {
t.Errorf("Expected 557 services, got %v", len(services.Services))
}
}
func TestWriteServices(t *testing.T) {
aug, err := augeas.New(fakeroot, "", augeas.SaveNewFile)
if err != nil {
t.Fatal("Failed to create Augeas handler")
}
n := New(&aug)
// Cleanup
os.Remove(fakeroot + "/etc/services.augnew")
services, err := n.NewServices()
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
errStr, _ := aug.Get("/augeas//error/message")
if errStr != "" {
t.Errorf("Failed with %s", errStr)
}
err = wrapWrite(n, services, true)
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
services.Services[100].Port = 42
err = wrapWrite(n, services, false)
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
// check that file is changed
expectedDiff := `--- orig
+++ new
@@ -113 +113 @@
-irc 194/tcp # Internet Relay Chat
+irc 42/tcp # Internet Relay Chat
`
diff, err := diffNewContent("/etc/services")
if err != nil {
t.Errorf("Failed to compute diff: %v", err)
} else if diff != expectedDiff {
t.Errorf("Expected diff %s, got %s", expectedDiff, diff)
}
}
func TestWriteServicesNewService(t *testing.T) {
aug, err := augeas.New(fakeroot, "", augeas.SaveNewFile)
if err != nil {
t.Fatal("Failed to create Augeas handler")
}
n := New(&aug)
// Cleanup
os.Remove(fakeroot + "/etc/services.augnew")
services, err := n.NewServices()
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
err = wrapWrite(n, services, true)
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
service := Service{
Name: "foo",
Port: 12345,
Protocol: "tcp",
Comment: "My foo service",
}
services.Services = append(services.Services, service)
err = wrapWrite(n, services, false)
if err != nil {
t.Errorf("Expected no error, got %v", err)
}
// check that file is changed
expectedDiff := `--- orig
+++ new
@@ -612,0 +613 @@
+foo 12345/tcp # My foo service
`
diff, err := diffNewContent("/etc/services")
if err != nil {
t.Errorf("Failed to compute diff: %v", err)
} else if diff != expectedDiff {
t.Errorf("Expected diff %s, got %s", expectedDiff, diff)
}
}
func ExampleNarcissus_NewServices() {
aug, err := augeas.New("/", "", augeas.None)
if err != nil {
log.Fatal("Failed to create Augeas handler")
}
n := New(&aug)
services, err := n.NewServices()
if err != nil {
log.Fatalf("Expected no error, got %v", err)
}
fmt.Printf("Port=%v", services.Services[0].Port)
// Output: Port=1
}
func ExampleNarcissus_NewService() {
aug, err := augeas.New("/", "", augeas.None)
if err != nil {
log.Fatal("Failed to create Augeas handler")
}
n := New(&aug)
service, err := n.NewService("ssh", "tcp")
if err != nil {
log.Fatalf("Expected no error, got %v", err)
}
fmt.Printf("Port=%v", service.Port)
// Output: Port=22
}