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// Copyright 2012-2018 The NATS Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !windows
package logger
import (
"fmt"
"log"
"net"
"os"
"path/filepath"
"strings"
"testing"
"time"
)
var serverFQN string
func TestSysLogger(t *testing.T) {
logger := NewSysLogger(false, false)
if logger.debug {
t.Fatalf("Expected %t, received %t\n", false, logger.debug)
}
if logger.trace {
t.Fatalf("Expected %t, received %t\n", false, logger.trace)
}
}
func TestSysLoggerWithDebugAndTrace(t *testing.T) {
logger := NewSysLogger(true, true)
if !logger.debug {
t.Fatalf("Expected %t, received %t\n", true, logger.debug)
}
if !logger.trace {
t.Fatalf("Expected %t, received %t\n", true, logger.trace)
}
}
func testTag(t *testing.T, exePath, expected string) {
os.Args[0] = exePath
if result := GetSysLoggerTag(); result != expected {
t.Fatalf("Expected %s, received %s", expected, result)
}
}
func restoreArg(orig string) {
os.Args[0] = orig
}
func TestSysLoggerTagGen(t *testing.T) {
origArg := os.Args[0]
defer restoreArg(origArg)
testTag(t, "gnatsd", "gnatsd")
testTag(t, filepath.Join(".", "gnatsd"), "gnatsd")
testTag(t, filepath.Join("home", "bin", "gnatsd"), "gnatsd")
testTag(t, filepath.Join("..", "..", "gnatsd"), "gnatsd")
testTag(t, "gnatsd.service1", "gnatsd.service1")
testTag(t, "gnatsd_service1", "gnatsd_service1")
testTag(t, "gnatsd-service1", "gnatsd-service1")
testTag(t, "gnatsd service1", "gnatsd service1")
}
func TestSysLoggerTag(t *testing.T) {
origArg := os.Args[0]
defer restoreArg(origArg)
os.Args[0] = "ServerLoggerTag"
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, true, true)
logger.Noticef("foo")
line := <-done
data := strings.Split(line, "[")
if len(data) != 2 {
t.Fatalf("Unexpected syslog line %s\n", line)
}
if !strings.Contains(data[0], os.Args[0]) {
t.Fatalf("Expected '%s', received '%s'\n", os.Args[0], data[0])
}
}
func TestRemoteSysLogger(t *testing.T) {
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, true, true)
if !logger.debug {
t.Fatalf("Expected %t, received %t\n", true, logger.debug)
}
if !logger.trace {
t.Fatalf("Expected %t, received %t\n", true, logger.trace)
}
}
func TestRemoteSysLoggerNotice(t *testing.T) {
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, true, true)
logger.Noticef("foo %s", "bar")
expectSyslogOutput(t, <-done, "foo bar\n")
}
func TestRemoteSysLoggerDebug(t *testing.T) {
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, true, true)
logger.Debugf("foo %s", "qux")
expectSyslogOutput(t, <-done, "foo qux\n")
}
func TestRemoteSysLoggerDebugDisabled(t *testing.T) {
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, false, false)
logger.Debugf("foo %s", "qux")
rcvd := <-done
if rcvd != "" {
t.Fatalf("Unexpected syslog response %s\n", rcvd)
}
}
func TestRemoteSysLoggerTrace(t *testing.T) {
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, true, true)
logger.Tracef("foo %s", "qux")
expectSyslogOutput(t, <-done, "foo qux\n")
}
func TestRemoteSysLoggerTraceDisabled(t *testing.T) {
done := make(chan string)
startServer(done)
logger := NewRemoteSysLogger(serverFQN, true, false)
logger.Tracef("foo %s", "qux")
rcvd := <-done
if rcvd != "" {
t.Fatalf("Unexpected syslog response %s\n", rcvd)
}
}
func TestGetNetworkAndAddrUDP(t *testing.T) {
n, a := getNetworkAndAddr("udp://foo.com:1000")
if n != "udp" {
t.Fatalf("Unexpected network %s\n", n)
}
if a != "foo.com:1000" {
t.Fatalf("Unexpected addr %s\n", a)
}
}
func TestGetNetworkAndAddrTCP(t *testing.T) {
n, a := getNetworkAndAddr("tcp://foo.com:1000")
if n != "tcp" {
t.Fatalf("Unexpected network %s\n", n)
}
if a != "foo.com:1000" {
t.Fatalf("Unexpected addr %s\n", a)
}
}
func TestGetNetworkAndAddrUnix(t *testing.T) {
n, a := getNetworkAndAddr("unix:///foo.sock")
if n != "unix" {
t.Fatalf("Unexpected network %s\n", n)
}
if a != "/foo.sock" {
t.Fatalf("Unexpected addr %s\n", a)
}
}
func expectSyslogOutput(t *testing.T, line string, expected string) {
data := strings.Split(line, "]: ")
if len(data) != 2 {
t.Fatalf("Unexpected syslog line %s\n", line)
}
if data[1] != expected {
t.Fatalf("Expected '%s', received '%s'\n", expected, data[1])
}
}
func runSyslog(c net.PacketConn, done chan<- string) {
var buf [4096]byte
var rcvd string
for {
n, _, err := c.ReadFrom(buf[:])
if err != nil || n == 0 {
break
}
rcvd += string(buf[:n])
}
done <- rcvd
}
func startServer(done chan<- string) {
c, e := net.ListenPacket("udp", "127.0.0.1:0")
if e != nil {
log.Fatalf("net.ListenPacket failed udp :0 %v", e)
}
serverFQN = fmt.Sprintf("udp://%s", c.LocalAddr().String())
c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
go runSyslog(c, done)
}
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