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log_test.go
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log_test.go
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package log
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"strings"
"testing"
"time"
"github.com/go-playground/errors/v5"
)
// NOTES:
// - Run "go test" to run tests
// - Run "gocov test | gocov report" to report on test converage by file
// - Run "gocov test | gocov annotate -" to report on all code and functions, those ,marked with "MISS" were never called
//
// or
//
// -- may be a good idea to change to output path to somewherelike /tmp
// go test -coverprofile cover.out && go tool cover -html=cover.out -o cover.html
type testHandler struct {
writer io.Writer
}
func (th *testHandler) Log(e Entry) {
s := e.Level.String() + " "
s += e.Message
for _, f := range e.Fields {
s += fmt.Sprintf(" %s=%v", f.Key, f.Value)
}
s += "\n"
if _, err := th.writer.Write([]byte(s)); err != nil {
panic(err)
}
}
func TestConsoleLogger1(t *testing.T) {
SetExitFunc(func(int) {})
SetWithErrorFn(errorsWithError)
tests := getLogTests1()
buff := new(bytes.Buffer)
th := &testHandler{
writer: buff,
}
logHandlers = map[Level][]Handler{}
AddHandler(th, AllLevels...)
for i, tt := range tests {
buff.Reset()
var l Entry
if tt.flds != nil {
l = l.WithFields(tt.flds...)
}
switch tt.lvl {
case DebugLevel:
if len(tt.printf) == 0 {
l.Debug(tt.msg)
} else {
l.Debugf(tt.printf, tt.msg)
}
case InfoLevel:
if len(tt.printf) == 0 {
l.Info(tt.msg)
} else {
l.Infof(tt.printf, tt.msg)
}
case NoticeLevel:
if len(tt.printf) == 0 {
l.Notice(tt.msg)
} else {
l.Noticef(tt.printf, tt.msg)
}
case WarnLevel:
if len(tt.printf) == 0 {
l.Warn(tt.msg)
} else {
l.Warnf(tt.printf, tt.msg)
}
case ErrorLevel:
if len(tt.printf) == 0 {
l.Error(tt.msg)
} else {
l.Errorf(tt.printf, tt.msg)
}
case PanicLevel:
if len(tt.printf) == 0 {
l.Panic(tt.msg)
} else {
l.Panicf(tt.printf, tt.msg)
}
case AlertLevel:
if len(tt.printf) == 0 {
l.Alert(tt.msg)
} else {
l.Alertf(tt.printf, tt.msg)
}
}
if buff.String() != tt.want {
t.Errorf("test %d: Expected '%s' Got '%s'", i, tt.want, buff.String())
}
}
buff.Reset()
// Test Custom Entry ( most common case is Unmarshalled from JSON when using centralized logging)
var entry Entry
entry.Level = InfoLevel
entry.Timestamp = time.Now().UTC()
entry.Message = "Test Message"
entry.Fields = make([]Field, 0)
HandleEntry(entry)
if buff.String() != "INFO Test Message\n" {
t.Errorf("test Custom Entry: Expected '%s' Got '%s'", "INFO Test Message\n", buff.String())
}
}
func TestConsoleLogger2(t *testing.T) {
SetExitFunc(func(int) {})
tests := getLogTests()
buff := new(bytes.Buffer)
th := &testHandler{
writer: buff,
}
logHandlers = map[Level][]Handler{}
AddHandler(th, AllLevels...)
for i, tt := range tests {
buff.Reset()
var l Entry
if tt.flds != nil {
l = WithFields(tt.flds...)
switch tt.lvl {
case DebugLevel:
if len(tt.printf) == 0 {
l.Debug(tt.msg)
} else {
l.Debugf(tt.printf, tt.msg)
}
case InfoLevel:
if len(tt.printf) == 0 {
l.Info(tt.msg)
} else {
l.Infof(tt.printf, tt.msg)
}
case NoticeLevel:
if len(tt.printf) == 0 {
l.Notice(tt.msg)
} else {
l.Noticef(tt.printf, tt.msg)
}
case WarnLevel:
if len(tt.printf) == 0 {
l.Warn(tt.msg)
} else {
l.Warnf(tt.printf, tt.msg)
}
case ErrorLevel:
if len(tt.printf) == 0 {
l.Error(tt.msg)
} else {
l.Errorf(tt.printf, tt.msg)
}
case PanicLevel:
func() {
defer func() {
_ = recover()
}()
if len(tt.printf) == 0 {
l.Panic(tt.msg)
} else {
l.Panicf(tt.printf, tt.msg)
}
}()
case AlertLevel:
if len(tt.printf) == 0 {
l.Alert(tt.msg)
} else {
l.Alertf(tt.printf, tt.msg)
}
}
} else {
switch tt.lvl {
case DebugLevel:
if len(tt.printf) == 0 {
Debug(tt.msg)
} else {
Debugf(tt.printf, tt.msg)
}
case InfoLevel:
if len(tt.printf) == 0 {
Info(tt.msg)
} else {
Infof(tt.printf, tt.msg)
}
case NoticeLevel:
if len(tt.printf) == 0 {
Notice(tt.msg)
} else {
Noticef(tt.printf, tt.msg)
}
case WarnLevel:
if len(tt.printf) == 0 {
Warn(tt.msg)
} else {
Warnf(tt.printf, tt.msg)
}
case ErrorLevel:
if len(tt.printf) == 0 {
Error(tt.msg)
} else {
Errorf(tt.printf, tt.msg)
}
case PanicLevel:
func() {
defer func() {
_ = recover()
}()
if len(tt.printf) == 0 {
Panic(tt.msg)
} else {
Panicf(tt.printf, tt.msg)
}
}()
case AlertLevel:
if len(tt.printf) == 0 {
Alert(tt.msg)
} else {
Alertf(tt.printf, tt.msg)
}
}
}
if buff.String() != tt.want {
t.Errorf("test %d: Expected '%s' Got '%s'", i, tt.want, buff.String())
}
}
buff.Reset()
// Test Custom Entry ( most common case is Unmarshalled from JSON when using centralized logging)
var entry Entry
entry.Level = InfoLevel
entry.Timestamp = time.Now().UTC()
entry.Message = "Test Message"
entry.Fields = make([]Field, 0)
HandleEntry(entry)
if buff.String() != "INFO Test Message\n" {
t.Errorf("test Custom Entry: Expected '%s' Got '%s'", "INFO Test Message\n", buff.String())
}
}
func TestLevel(t *testing.T) {
tests := []struct {
value string
want string
}{
{
value: Level(255).String(),
want: "Unknown Level",
},
{
value: DebugLevel.String(),
want: "DEBUG",
},
{
value: InfoLevel.String(),
want: "INFO",
},
{
value: NoticeLevel.String(),
want: "NOTICE",
},
{
value: WarnLevel.String(),
want: "WARN",
},
{
value: ErrorLevel.String(),
want: "ERROR",
},
{
value: PanicLevel.String(),
want: "PANIC",
},
{
value: AlertLevel.String(),
want: "ALERT",
},
{
value: FatalLevel.String(),
want: "FATAL",
},
}
for i, tt := range tests {
if tt.value != tt.want {
t.Errorf("Test %d: Expected '%s' Got '%s'", i, tt.want, tt.value)
}
}
}
func TestFatal(t *testing.T) {
var i int
SetExitFunc(func(code int) {
i = code
})
Fatal("fatal")
if i != 1 {
t.Errorf("test Fatals: Expected '%d' Got '%d'", 1, i)
}
Fatalf("fatalf")
if i != 1 {
t.Errorf("test Fatals: Expected '%d' Got '%d'", 1, i)
}
WithField("key", "value").Fatal("fatal")
if i != 1 {
t.Errorf("test Fatals: Expected '%d' Got '%d'", 1, i)
}
WithFields(F("key", "value")).Fatalf("fatalf")
if i != 1 {
t.Errorf("test Fatals: Expected '%d' Got '%d'", 1, i)
}
Entry{}.WithField("key", "value").Fatalf("fatalf")
if i != 1 {
t.Errorf("test Fatals: Expected '%d' Got '%d'", 1, i)
}
}
func TestWithError(t *testing.T) {
logHandlers = map[Level][]Handler{}
buff := new(bytes.Buffer)
th := &testHandler{
writer: buff,
}
AddHandler(th, AllLevels...)
terr := fmt.Errorf("this is an %s", "err")
WithError(terr).Info()
if !strings.HasSuffix(buff.String(), "log_test.go:361:TestWithError this is an err\n") {
t.Errorf("Expected '%s' Got '%s'", "log_test.go:361:TestWithError this is an err\n", buff.String())
}
buff.Reset()
Entry{}.WithError(terr).Info()
if !strings.HasSuffix(buff.String(), "log_test.go:366:TestWithError this is an err\n") {
t.Errorf("Expected '%s' Got '%s'", "log_test.go:366:TestWithError this is an err\n", buff.String())
}
buff.Reset()
WithError(errors.Wrap(terr, "wrapped error")).Info()
if !strings.HasSuffix(buff.String(), "log_test.go:371:TestWithError wrapped error\n") || !strings.HasPrefix(buff.String(), "INFO source=") {
t.Errorf("Expected '%s' Got '%s'", "log_test.go:371:TestWithError wrapped error: this is an err\n", buff.String())
}
}
func TestWithTrace(t *testing.T) {
logHandlers = map[Level][]Handler{}
buff := new(bytes.Buffer)
th := &testHandler{
writer: buff,
}
AddHandler(th, AllLevels...)
WithTrace().Info("info")
if !strings.HasPrefix(buff.String(), "INFO info duration=") {
t.Errorf("Expected '%s' Got '%s'", "INFO info duration=", buff.String())
}
Entry{}.WithTrace().Info("info")
if !strings.HasPrefix(buff.String(), "INFO info duration=") {
t.Errorf("Expected '%s' Got '%s'", "INFO info duration=", buff.String())
}
}
func TestDefaultsAndGroupFields(t *testing.T) {
logHandlers = map[Level][]Handler{}
buff := new(bytes.Buffer)
th := &testHandler{
writer: buff,
}
AddHandler(th, AllLevels...)
WithDefaultFields(F("key", "value"))
WithFields(G("group", F("gkey", "gvalue"))).Info("info")
if buff.String() != "INFO info key=value group=[{gkey gvalue}]\n" {
t.Errorf("Expected '%s' Got '%s'", "INFO info key=value group=[{gkey gvalue}]\n", buff.String())
}
}
func getLogTests() []test {
return []test{
{
lvl: PanicLevel,
msg: "panicln",
flds: nil,
want: "PANIC panicln\n",
},
{
lvl: DebugLevel,
msg: "debug",
flds: nil,
want: "DEBUG debug\n",
},
{
lvl: DebugLevel,
msg: "debugf",
printf: "%s",
flds: nil,
want: "DEBUG debugf\n",
},
{
lvl: InfoLevel,
msg: "info",
flds: nil,
want: "INFO info\n",
},
{
lvl: InfoLevel,
msg: "infof",
printf: "%s",
flds: nil,
want: "INFO infof\n",
},
{
lvl: NoticeLevel,
msg: "notice",
flds: nil,
want: "NOTICE notice\n",
},
{
lvl: NoticeLevel,
msg: "noticef",
printf: "%s",
flds: nil,
want: "NOTICE noticef\n",
},
{
lvl: WarnLevel,
msg: "warn",
flds: nil,
want: "WARN warn\n",
},
{
lvl: WarnLevel,
msg: "warnf",
printf: "%s",
flds: nil,
want: "WARN warnf\n",
},
{
lvl: ErrorLevel,
msg: "error",
flds: nil,
want: "ERROR error\n",
},
{
lvl: ErrorLevel,
msg: "errorf",
printf: "%s",
flds: nil,
want: "ERROR errorf\n",
},
{
lvl: AlertLevel,
msg: "alert",
flds: nil,
want: "ALERT alert\n",
},
{
lvl: AlertLevel,
msg: "alertf",
printf: "%s",
flds: nil,
want: "ALERT alertf\n",
},
{
lvl: PanicLevel,
msg: "panic",
flds: nil,
want: "PANIC panic\n",
},
{
lvl: PanicLevel,
msg: "panicf",
printf: "%s",
flds: nil,
want: "PANIC panicf\n",
},
{
lvl: DebugLevel,
msg: "debug",
flds: []Field{
F("key", "value"),
},
want: "DEBUG debug key=value\n",
},
{
lvl: DebugLevel,
msg: "debugf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "DEBUG debugf key=value\n",
},
{
lvl: InfoLevel,
msg: "info",
flds: []Field{
F("key", "value"),
},
want: "INFO info key=value\n",
},
{
lvl: InfoLevel,
msg: "infof",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "INFO infof key=value\n",
},
{
lvl: NoticeLevel,
msg: "notice",
flds: []Field{
F("key", "value"),
},
want: "NOTICE notice key=value\n",
},
{
lvl: NoticeLevel,
msg: "noticef",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "NOTICE noticef key=value\n",
},
{
lvl: WarnLevel,
msg: "warn",
flds: []Field{
F("key", "value"),
},
want: "WARN warn key=value\n",
},
{
lvl: WarnLevel,
msg: "warnf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "WARN warnf key=value\n",
},
{
lvl: ErrorLevel,
msg: "error",
flds: []Field{
F("key", "value"),
},
want: "ERROR error key=value\n",
},
{
lvl: ErrorLevel,
msg: "errorf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "ERROR errorf key=value\n",
},
{
lvl: AlertLevel,
msg: "alert",
flds: []Field{
F("key", "value"),
},
want: "ALERT alert key=value\n",
},
{
lvl: AlertLevel,
msg: "alert",
flds: []Field{
F("key", "value"),
},
want: "ALERT alert key=value\n",
},
{
lvl: AlertLevel,
msg: "alertf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "ALERT alertf key=value\n",
},
{
lvl: PanicLevel,
msg: "panicf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "PANIC panicf key=value\n",
},
{
lvl: PanicLevel,
msg: "panic",
flds: []Field{
F("key", "value"),
},
want: "PANIC panic key=value\n",
},
{
lvl: DebugLevel,
msg: "debug",
flds: []Field{
F("key", "string"),
F("key", int(1)),
F("key", int8(2)),
F("key", int16(3)),
F("key", int32(4)),
F("key", int64(5)),
F("key", uint(1)),
F("key", uint8(2)),
F("key", uint16(3)),
F("key", uint32(4)),
F("key", uint64(5)),
F("key", true),
F("key", struct{ value string }{"struct"}),
},
want: "DEBUG debug key=string key=1 key=2 key=3 key=4 key=5 key=1 key=2 key=3 key=4 key=5 key=true key={struct}\n",
},
}
}
func getLogTests1() []test {
return []test{
{
lvl: PanicLevel,
msg: "panicln",
flds: nil,
want: "PANIC panicln\n",
},
{
lvl: DebugLevel,
msg: "debug",
flds: nil,
want: "DEBUG debug\n",
},
{
lvl: DebugLevel,
msg: "debugf",
printf: "%s",
flds: nil,
want: "DEBUG debugf\n",
},
{
lvl: InfoLevel,
msg: "info",
flds: nil,
want: "INFO info\n",
},
{
lvl: InfoLevel,
msg: "infof",
printf: "%s",
flds: nil,
want: "INFO infof\n",
},
{
lvl: NoticeLevel,
msg: "notice",
flds: nil,
want: "NOTICE notice\n",
},
{
lvl: NoticeLevel,
msg: "noticef",
printf: "%s",
flds: nil,
want: "NOTICE noticef\n",
},
{
lvl: WarnLevel,
msg: "warn",
flds: nil,
want: "WARN warn\n",
},
{
lvl: WarnLevel,
msg: "warnf",
printf: "%s",
flds: nil,
want: "WARN warnf\n",
},
{
lvl: ErrorLevel,
msg: "error",
flds: nil,
want: "ERROR error\n",
},
{
lvl: ErrorLevel,
msg: "errorf",
printf: "%s",
flds: nil,
want: "ERROR errorf\n",
},
{
lvl: AlertLevel,
msg: "alert",
flds: nil,
want: "ALERT alert\n",
},
{
lvl: AlertLevel,
msg: "alertf",
printf: "%s",
flds: nil,
want: "ALERT alertf\n",
},
{
lvl: PanicLevel,
msg: "panic",
flds: nil,
want: "PANIC panic\n",
},
{
lvl: PanicLevel,
msg: "panicf",
printf: "%s",
flds: nil,
want: "PANIC panicf\n",
},
{
lvl: DebugLevel,
msg: "debug",
flds: []Field{
F("key", "value"),
},
want: "DEBUG debug key=value\n",
},
{
lvl: DebugLevel,
msg: "debugf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "DEBUG debugf key=value\n",
},
{
lvl: InfoLevel,
msg: "info",
flds: []Field{
F("key", "value"),
},
want: "INFO info key=value\n",
},
{
lvl: InfoLevel,
msg: "infof",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "INFO infof key=value\n",
},
{
lvl: NoticeLevel,
msg: "notice",
flds: []Field{
F("key", "value"),
},
want: "NOTICE notice key=value\n",
},
{
lvl: NoticeLevel,
msg: "noticef",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "NOTICE noticef key=value\n",
},
{
lvl: WarnLevel,
msg: "warn",
flds: []Field{
F("key", "value"),
},
want: "WARN warn key=value\n",
},
{
lvl: WarnLevel,
msg: "warnf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "WARN warnf key=value\n",
},
{
lvl: ErrorLevel,
msg: "error",
flds: []Field{
F("key", "value"),
},
want: "ERROR error key=value\n",
},
{
lvl: ErrorLevel,
msg: "errorf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "ERROR errorf key=value\n",
},
{
lvl: AlertLevel,
msg: "alert",
flds: []Field{
F("key", "value"),
},
want: "ALERT alert key=value\n",
},
{
lvl: AlertLevel,
msg: "alert",
flds: []Field{
F("key", "value"),
},
want: "ALERT alert key=value\n",
},
{
lvl: AlertLevel,
msg: "alertf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "ALERT alertf key=value\n",
},
{
lvl: PanicLevel,
msg: "panicf",
printf: "%s",
flds: []Field{
F("key", "value"),
},
want: "PANIC panicf key=value\n",
},
{
lvl: PanicLevel,
msg: "panic",
flds: []Field{
F("key", "value"),
},
want: "PANIC panic key=value\n",
},
{
lvl: DebugLevel,
msg: "debug",
flds: []Field{
F("key", "string"),
F("key", int(1)),
F("key", int8(2)),
F("key", int16(3)),
F("key", int32(4)),
F("key", int64(5)),
F("key", uint(1)),
F("key", uint8(2)),
F("key", uint16(3)),
F("key", uint32(4)),
F("key", uint64(5)),
F("key", true),
F("key", struct{ value string }{"struct"}),
},
want: "DEBUG debug key=string key=1 key=2 key=3 key=4 key=5 key=1 key=2 key=3 key=4 key=5 key=true key={struct}\n",
},
}
}
func TestContext(t *testing.T) {
e := GetContext(context.Background())
if e.Message != "" {
t.Errorf("Got '%s' Expected '%s'", e.Message, "")
}
l := WithField("key", "value")
ctx := SetContext(context.Background(), l)
e = GetContext(ctx)
if l.Fields[0].Key != e.Fields[0].Key {
t.Errorf("Got '%s' Expected '%s'", e.Fields[0].Key, "key")
}
if l.Fields[0].Value != e.Fields[0].Value {
t.Errorf("Got '%s' Expected '%s'", e.Fields[0].Value, "value")
}
}
func TestParseLevel(t *testing.T) {
tests := []struct {
value string
level Level
}{
{
level: Level(255),
value: "Unknown Level",
},
{
level: DebugLevel,
value: "DEBUG",
},
{
level: InfoLevel,
value: "INFO",
},
{
level: NoticeLevel,
value: "NOTICE",
},
{
level: WarnLevel,
value: "WARN",
},
{
level: ErrorLevel,
value: "ERROR",
},
{
level: PanicLevel,
value: "PANIC",
},
{
level: AlertLevel,
value: "ALERT",
},
{
level: FatalLevel,
value: "FATAL",
},
}
for i, tt := range tests {
entry := Entry{
Level: tt.level,
}
b, _ := json.Marshal(entry)
_ = json.Unmarshal(b, &entry)
if entry.Level != tt.level || entry.Level.String() != tt.value {
t.Errorf("Test %d: Expected '%s' Got '%s'", i, entry.Level, tt.level)
}
}
}
func TestWrappedError(t *testing.T) {
SetExitFunc(func(int) {})
SetWithErrorFn(errorsWithError)
logFields = logFields[0:0]
buff := new(bytes.Buffer)
th := &testHandler{
writer: buff,
}
logHandlers = map[Level][]Handler{}
AddHandler(th, AllLevels...)
err := fmt.Errorf("this is an %s", "error")
err = errors.Wrap(err, "prefix").AddTypes("Permanent", "Internal").AddTag("key", "value")
WithError(err).Error("test")
expected := "log_test.go:993:TestWrappedError prefix key=value types=Permanent,Internal\n"
if !strings.HasSuffix(buff.String(), expected) {
t.Errorf("got %s Expected %s", buff.String(), expected)
}
buff.Reset()
WithError(err).Error("test")