How to use Fatalf method of logger Package

Best Gauge code snippet using logger.Fatalf

syslog_test.go

Source:syslog_test.go Github

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...25var serverFQN string26func TestSysLogger(t *testing.T) {27 logger := NewSysLogger(false, false)28 if logger.debug {29 t.Fatalf("Expected %t, received %t\n", false, logger.debug)30 }31 if logger.trace {32 t.Fatalf("Expected %t, received %t\n", false, logger.trace)33 }34}35func TestSysLoggerWithDebugAndTrace(t *testing.T) {36 logger := NewSysLogger(true, true)37 if !logger.debug {38 t.Fatalf("Expected %t, received %t\n", true, logger.debug)39 }40 if !logger.trace {41 t.Fatalf("Expected %t, received %t\n", true, logger.trace)42 }43}44func testTag(t *testing.T, exePath, expected string) {45 os.Args[0] = exePath46 if result := GetSysLoggerTag(); result != expected {47 t.Fatalf("Expected %s, received %s", expected, result)48 }49}50func restoreArg(orig string) {51 os.Args[0] = orig52}53func TestSysLoggerTagGen(t *testing.T) {54 origArg := os.Args[0]55 defer restoreArg(origArg)56 testTag(t, "nats-server", "nats-server")57 testTag(t, filepath.Join(".", "nats-server"), "nats-server")58 testTag(t, filepath.Join("home", "bin", "nats-server"), "nats-server")59 testTag(t, filepath.Join("..", "..", "nats-server"), "nats-server")60 testTag(t, "nats-server.service1", "nats-server.service1")61 testTag(t, "nats-server_service1", "nats-server_service1")62 testTag(t, "nats-server-service1", "nats-server-service1")63 testTag(t, "nats-server service1", "nats-server service1")64}65func TestSysLoggerTag(t *testing.T) {66 origArg := os.Args[0]67 defer restoreArg(origArg)68 os.Args[0] = "ServerLoggerTag"69 done := make(chan string)70 startServer(done)71 logger := NewRemoteSysLogger(serverFQN, true, true)72 logger.Noticef("foo")73 line := <-done74 data := strings.Split(line, "[")75 if len(data) != 2 {76 t.Fatalf("Unexpected syslog line %s\n", line)77 }78 if !strings.Contains(data[0], os.Args[0]) {79 t.Fatalf("Expected '%s', received '%s'\n", os.Args[0], data[0])80 }81}82func TestRemoteSysLogger(t *testing.T) {83 done := make(chan string)84 startServer(done)85 logger := NewRemoteSysLogger(serverFQN, true, true)86 if !logger.debug {87 t.Fatalf("Expected %t, received %t\n", true, logger.debug)88 }89 if !logger.trace {90 t.Fatalf("Expected %t, received %t\n", true, logger.trace)91 }92}93func TestRemoteSysLoggerNotice(t *testing.T) {94 done := make(chan string)95 startServer(done)96 logger := NewRemoteSysLogger(serverFQN, true, true)97 logger.Noticef("foo %s", "bar")98 expectSyslogOutput(t, <-done, "foo bar\n")99}100func TestRemoteSysLoggerDebug(t *testing.T) {101 done := make(chan string)102 startServer(done)103 logger := NewRemoteSysLogger(serverFQN, true, true)104 logger.Debugf("foo %s", "qux")105 expectSyslogOutput(t, <-done, "foo qux\n")106}107func TestRemoteSysLoggerDebugDisabled(t *testing.T) {108 done := make(chan string)109 startServer(done)110 logger := NewRemoteSysLogger(serverFQN, false, false)111 logger.Debugf("foo %s", "qux")112 rcvd := <-done113 if rcvd != "" {114 t.Fatalf("Unexpected syslog response %s\n", rcvd)115 }116}117func TestRemoteSysLoggerTrace(t *testing.T) {118 done := make(chan string)119 startServer(done)120 logger := NewRemoteSysLogger(serverFQN, true, true)121 logger.Tracef("foo %s", "qux")122 expectSyslogOutput(t, <-done, "foo qux\n")123}124func TestRemoteSysLoggerTraceDisabled(t *testing.T) {125 done := make(chan string)126 startServer(done)127 logger := NewRemoteSysLogger(serverFQN, true, false)128 logger.Tracef("foo %s", "qux")129 rcvd := <-done130 if rcvd != "" {131 t.Fatalf("Unexpected syslog response %s\n", rcvd)132 }133}134func TestGetNetworkAndAddrUDP(t *testing.T) {135 n, a := getNetworkAndAddr("udp://foo.com:1000")136 if n != "udp" {137 t.Fatalf("Unexpected network %s\n", n)138 }139 if a != "foo.com:1000" {140 t.Fatalf("Unexpected addr %s\n", a)141 }142}143func TestGetNetworkAndAddrTCP(t *testing.T) {144 n, a := getNetworkAndAddr("tcp://foo.com:1000")145 if n != "tcp" {146 t.Fatalf("Unexpected network %s\n", n)147 }148 if a != "foo.com:1000" {149 t.Fatalf("Unexpected addr %s\n", a)150 }151}152func TestGetNetworkAndAddrUnix(t *testing.T) {153 n, a := getNetworkAndAddr("unix:///foo.sock")154 if n != "unix" {155 t.Fatalf("Unexpected network %s\n", n)156 }157 if a != "/foo.sock" {158 t.Fatalf("Unexpected addr %s\n", a)159 }160}161func expectSyslogOutput(t *testing.T, line string, expected string) {162 data := strings.Split(line, "]: ")163 if len(data) != 2 {164 t.Fatalf("Unexpected syslog line %s\n", line)165 }166 if data[1] != expected {167 t.Fatalf("Expected '%s', received '%s'\n", expected, data[1])168 }169}170func runSyslog(c net.PacketConn, done chan<- string) {171 var buf [4096]byte172 var rcvd string173 for {174 n, _, err := c.ReadFrom(buf[:])175 if err != nil || n == 0 {176 break177 }178 rcvd += string(buf[:n])179 }180 done <- rcvd181}182func startServer(done chan<- string) {183 c, e := net.ListenPacket("udp", "127.0.0.1:0")184 if e != nil {185 log.Fatalf("net.ListenPacket failed udp :0 %v", e)186 }187 serverFQN = fmt.Sprintf("udp://%s", c.LocalAddr().String())188 c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))189 go runSyslog(c, done)190}...

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log_test.go

Source:log_test.go Github

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...25func TestStdLogger(t *testing.T) {26 logger := NewStdLogger(false, false, false, false, false)27 flags := logger.logger.Flags()28 if flags != 0 {29 t.Fatalf("Expected %q, received %q\n", 0, flags)30 }31 if logger.debug {32 t.Fatalf("Expected %t, received %t\n", false, logger.debug)33 }34 if logger.trace {35 t.Fatalf("Expected %t, received %t\n", false, logger.trace)36 }37}38func TestStdLoggerWithDebugTraceAndTime(t *testing.T) {39 logger := NewStdLogger(true, true, true, false, false)40 flags := logger.logger.Flags()41 if flags != log.LstdFlags|log.Lmicroseconds {42 t.Fatalf("Expected %d, received %d\n", log.LstdFlags, flags)43 }44 if !logger.debug {45 t.Fatalf("Expected %t, received %t\n", true, logger.debug)46 }47 if !logger.trace {48 t.Fatalf("Expected %t, received %t\n", true, logger.trace)49 }50}51func TestStdLoggerNotice(t *testing.T) {52 expectOutput(t, func() {53 logger := NewStdLogger(false, false, false, false, false)54 logger.Noticef("foo")55 }, "[INF] foo\n")56}57func TestStdLoggerNoticeWithColor(t *testing.T) {58 expectOutput(t, func() {59 logger := NewStdLogger(false, false, false, true, false)60 logger.Noticef("foo")61 }, "[\x1b[32mINF\x1b[0m] foo\n")62}63func TestStdLoggerDebug(t *testing.T) {64 expectOutput(t, func() {65 logger := NewStdLogger(false, true, false, false, false)66 logger.Debugf("foo %s", "bar")67 }, "[DBG] foo bar\n")68}69func TestStdLoggerDebugWithOutDebug(t *testing.T) {70 expectOutput(t, func() {71 logger := NewStdLogger(false, false, false, false, false)72 logger.Debugf("foo")73 }, "")74}75func TestStdLoggerTrace(t *testing.T) {76 expectOutput(t, func() {77 logger := NewStdLogger(false, false, true, false, false)78 logger.Tracef("foo")79 }, "[TRC] foo\n")80}81func TestStdLoggerTraceWithOutDebug(t *testing.T) {82 expectOutput(t, func() {83 logger := NewStdLogger(false, false, false, false, false)84 logger.Tracef("foo")85 }, "")86}87func TestFileLogger(t *testing.T) {88 tmpDir, err := ioutil.TempDir("", "_nats-server")89 if err != nil {90 t.Fatal("Could not create tmp dir")91 }92 defer os.RemoveAll(tmpDir)93 file, err := ioutil.TempFile(tmpDir, "nats-server:log_")94 if err != nil {95 t.Fatalf("Could not create the temp file: %v", err)96 }97 file.Close()98 logger := NewFileLogger(file.Name(), false, false, false, false)99 logger.Noticef("foo")100 buf, err := ioutil.ReadFile(file.Name())101 if err != nil {102 t.Fatalf("Could not read logfile: %v", err)103 }104 if len(buf) <= 0 {105 t.Fatal("Expected a non-zero length logfile")106 }107 if string(buf) != "[INF] foo\n" {108 t.Fatalf("Expected '%s', received '%s'\n", "[INFO] foo", string(buf))109 }110 file, err = ioutil.TempFile(tmpDir, "nats-server:log_")111 if err != nil {112 t.Fatalf("Could not create the temp file: %v", err)113 }114 file.Close()115 logger = NewFileLogger(file.Name(), true, true, true, true)116 logger.Errorf("foo")117 buf, err = ioutil.ReadFile(file.Name())118 if err != nil {119 t.Fatalf("Could not read logfile: %v", err)120 }121 if len(buf) <= 0 {122 t.Fatal("Expected a non-zero length logfile")123 }124 str := string(buf)125 errMsg := fmt.Sprintf("Expected '%s', received '%s'\n", "[pid] <date> [ERR] foo", str)126 pidEnd := strings.Index(str, " ")127 infoStart := strings.LastIndex(str, "[ERR]")128 if pidEnd == -1 || infoStart == -1 {129 t.Fatalf("%v", errMsg)130 }131 pid := str[0:pidEnd]132 if pid[0] != '[' || pid[len(pid)-1] != ']' {133 t.Fatalf("%v", errMsg)134 }135 date := str[pidEnd:infoStart]136 dateRegExp := "[0-9]{4}/[0-9]{2}/[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}.[0-9]{6}"137 reg, err := regexp.Compile(dateRegExp)138 if err != nil {139 t.Fatalf("Compile date regexp error: %v", err)140 }141 if matched := reg.Match([]byte(date)); !matched {142 t.Fatalf("Date string '%s' does not match '%s'", date, dateRegExp)143 }144 if !strings.HasSuffix(str, "[ERR] foo\n") {145 t.Fatalf("%v", errMsg)146 }147}148func expectOutput(t *testing.T, f func(), expected string) {149 old := os.Stderr // keep backup of the real stderr150 r, w, _ := os.Pipe()151 os.Stderr = w152 f()153 outC := make(chan string)154 // copy the output in a separate goroutine so printing can't block indefinitely155 go func() {156 var buf bytes.Buffer157 io.Copy(&buf, r)158 outC <- buf.String()159 }()160 os.Stderr.Close()161 os.Stderr = old // restoring the real stdout162 out := <-outC163 if out != expected {164 t.Fatalf("Expected '%s', received '%s'\n", expected, out)165 }166}...

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syslog_windows_test.go

Source:syslog_windows_test.go Github

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...38 var err error39 cmd := exec.Command("wevtutil.exe", "qe", "Application", "/q:*[System[Provider[@Name='NATS-Server']]]",40 "/rd:true", "/c:1")41 if output, err = cmd.Output(); err != nil {42 t.Fatalf("Unable to execute command: %v", err)43 }44 return strings.Contains(string(output), text)45}46// TestSysLogger tests event logging on windows47func TestSysLogger(t *testing.T) {48 checkPrivledges(t)49 logger := NewSysLogger(false, false)50 if logger.debug {51 t.Fatalf("Expected %t, received %t\n", false, logger.debug)52 }53 if logger.trace {54 t.Fatalf("Expected %t, received %t\n", false, logger.trace)55 }56 logger.Noticef("%s", "Noticef")57 if !lastLogEntryContains(t, "[NOTICE]: Noticef") {58 t.Fatalf("missing log entry")59 }60 logger.Errorf("%s", "Errorf")61 if !lastLogEntryContains(t, "[ERROR]: Errorf") {62 t.Fatalf("missing log entry")63 }64 logger.Tracef("%s", "Tracef")65 if lastLogEntryContains(t, "Tracef") {66 t.Fatalf("should not contain log entry")67 }68 logger.Debugf("%s", "Debugf")69 if lastLogEntryContains(t, "Debugf") {70 t.Fatalf("should not contain log entry")71 }72}73// TestSysLoggerWithDebugAndTrace tests event logging74func TestSysLoggerWithDebugAndTrace(t *testing.T) {75 checkPrivledges(t)76 logger := NewSysLogger(true, true)77 if !logger.debug {78 t.Fatalf("Expected %t, received %t\n", true, logger.debug)79 }80 if !logger.trace {81 t.Fatalf("Expected %t, received %t\n", true, logger.trace)82 }83 logger.Tracef("%s", "Tracef")84 if !lastLogEntryContains(t, "[TRACE]: Tracef") {85 t.Fatalf("missing log entry")86 }87 logger.Debugf("%s", "Debugf")88 if !lastLogEntryContains(t, "[DEBUG]: Debugf") {89 t.Fatalf("missing log entry")90 }91}92// TestSysLoggerWithDebugAndTrace tests remote event logging93func TestRemoteSysLoggerWithDebugAndTrace(t *testing.T) {94 checkPrivledges(t)95 logger := NewRemoteSysLogger("", true, true)96 if !logger.debug {97 t.Fatalf("Expected %t, received %t\n", true, logger.debug)98 }99 if !logger.trace {100 t.Fatalf("Expected %t, received %t\n", true, logger.trace)101 }102 logger.Tracef("NATS %s", "[TRACE]: Remote Noticef")103 if !lastLogEntryContains(t, "Remote Noticef") {104 t.Fatalf("missing log entry")105 }106}107func TestSysLoggerFatalf(t *testing.T) {108 defer func() {109 if r := recover(); r != nil {110 if !lastLogEntryContains(t, "[FATAL]: Fatalf") {111 t.Fatalf("missing log entry")112 }113 }114 }()115 checkPrivledges(t)116 logger := NewSysLogger(true, true)117 logger.Fatalf("%s", "Fatalf")118 t.Fatalf("did not panic when expected to")119}...

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Fatalf

Using AI Code Generation

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1import (2func main() {3 logFile, err := os.Create("log.txt")4 if err != nil {5 log.Fatalln("failed to create log file")6 }7 log.SetOutput(logFile)8 log.SetFlags(log.Lshortfile)9 log.Fatalln("fatal error")10 log.Println("executed")11}12GoLang: log.Panicln() Method13func Panicln(v ...interface{})14import (15func main() {16 logFile, err := os.Create("log.txt")17 if err != nil {18 log.Fatalln("failed to create log file")19 }20 log.SetOutput(logFile)21 log.SetFlags(log.Lshortfile)22 log.Panicln("panic error")23 log.Println("executed")24}25log.Panicln(0xc0000a3f78, 0x1, 0x1)26main.main()27GoLang: log.Panicf() Method28func Panicf(format string, v ...interface{})29import (

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Fatalf

Using AI Code Generation

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1import (2func main() {3 file, err := os.OpenFile("log.txt", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)4 if err != nil {5 log.Fatalln("failed to open file", err)6 }7 defer file.Close()8 log.SetOutput(file)9 log.Println("this is a log message")10}11import (12func main() {13 file, err := os.OpenFile("log.txt", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)14 if err != nil {15 log.Fatalln("failed to open file", err)16 }17 defer file.Close()18 log.SetOutput(file)19 log.Fatalf("this is a %s", "log message")20}21import (22func main() {23 file, err := os.OpenFile("log.txt", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)24 if err != nil {25 log.Fatalln("failed to open file", err)26 }27 defer file.Close()28 log.SetOutput(file)29 log.Panicln("this is a log message")30}31log.Panicln(0xc000

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Fatalf

Using AI Code Generation

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1import (2func main() {3 log.Fatalf("This is a fatal error")4}5import (6func main() {7 log.Fatalln("This is a fatal error")8}9import (10func main() {11 log.Fatal("This is a fatal error")12}13import (14func main() {15 log.Panicf("This is a panic error")16}17import (18func main() {19 log.Panicln("This is a panic error")20}

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Fatalf

Using AI Code Generation

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1import (2func main() {3 file, err := os.Create("test.txt")4 if err != nil {5 log.Fatalf("error creating file: %v", err)6 }7 defer file.Close()8 log.SetOutput(file)9 log.Println("This is a test log entry")10}11Log.Panicln() method12import (13func main() {14 log.Panicln("This is a panic log entry")15}16log.Panicln(0xc0000101b0, 0x1, 0x1)17main.main()18Log.Panicf() method19import (20func main() {21 log.Panicf("This is a %s log entry", "panic")22}23log.Panicf(0x5c5b5a, 0x1a, 0xc0000101b0, 0x1, 0

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Fatalf

Using AI Code Generation

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1import (2func main() {3logger := log.New(os.Stderr, "logger: ", log.Ldate|log.Ltime|log.Lshortfile)4logger.Printf("This is a regular log message")5logger.Fatalf("This is a fatal log message")6}7import (8func main() {9logger := log.New(os.Stderr, "logger: ", log.Ldate|log.Ltime|log.Lshortfile)10logger.Printf("This is a regular log message")11logger.Fatalf("This is a fatal log message")12}13import (14func main() {15logger := log.New(os.Stderr, "logger: ", log.Ldate|log.Ltime|log.Lshortfile)16logger.Printf("This is a regular log message")17logger.Fatalf("This is a fatal log message")18}

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Fatalf

Using AI Code Generation

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1import (2func main() {3 log.Fatalf("This is a fatal error message")4 fmt.Println("This message will not be printed")5}6import (7func main() {8 log.Panicf("This is a panic error message")9 fmt.Println("This message will not be printed")10}

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Fatalf

Using AI Code Generation

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1import (2func main() {3 log.Fatalf("This is a Fatalf method")4}5import (6func main() {7 log.Panicf("This is a Panicf method")8}9log.Panicf(0x4a5b6c, 0x15, 0xc00006bf40, 0x1, 0x1)

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Fatalf

Using AI Code Generation

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1import (2func main() {3 log.Fatalf("Fatal error")4}5import (6func main() {7 log.Fatalf("Fatal error %s", "occured")8}9import (10func main() {11 log.Fatalf("Fatal error %s", "occured")12}13import (14func main() {15 log.Fatalf("Fatal error %s", "occured")16}17import (18func main() {19 log.Fatalf("Fatal error %s", "occured")20}

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Fatalf

Using AI Code Generation

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1import(2func main(){3 log.Fatalf("Fatal Error")4}5import(6func main(){7 log.Panic("Panic")8}9log.Panic(0xc0000a1e18, 0x1, 0x1)10main.main()11import(12func main(){13 log.Panicf("Panic %s","Error")14}15log.Panicf(0x4e6f4a, 0xa, 0xc0000a1e18, 0x1, 0x1)16main.main()17import(18func main(){19 log.Println("Println")20}

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