Fix the data race in the Option implementation (#20)

VERSION

@@ -1 +1 @@
-v0.2.2
+v0.2.3

base_logger.go

@@ -2,6 +2,7 @@ package log
 
 import (
 	"fmt"
+	"sync"
 
 	"github.com/no-src/log/content"
 	"github.com/no-src/log/formatter"
@@ -16,6 +17,7 @@ type baseLogger struct {
 	f          formatter.Formatter
 	appendTime bool
 	timeFormat string
+	optMu      sync.RWMutex // protect Option
 }
 
 func (l *baseLogger) Debug(format string, args ...interface{}) {
@@ -49,7 +51,11 @@ func (l *baseLogger) log(lvl level.Level, format string, args ...interface{}) {
 
 func (l *baseLogger) logWithErr(err error, lvl level.Level, format string, args ...interface{}) {
 	if checkLogLevel(l.lvl, lvl) {
-		data, _ := l.f.Serialize(content.NewContent(lvl, err, l.appendTime, l.timeFormat, format, args...))
+		l.optMu.RLock()
+		c := content.NewContent(lvl, err, l.appendTime, l.timeFormat, format, args...)
+		f := l.f
+		l.optMu.RUnlock()
+		data, _ := f.Serialize(c)
 		l.Log(string(data))
 	}
 }
@@ -72,15 +78,19 @@ func (l *baseLogger) init(w Writer, lvl level.Level, appendTime bool) {
 
 func (l *baseLogger) setFormatter(f formatter.Formatter) {
 	if f != nil {
+		l.optMu.Lock()
 		l.f = f
+		l.optMu.Unlock()
 	}
 }
 
 func (l *baseLogger) setTimeFormat(f string) {
 	if len(f) == 0 {
 		f = content.DefaultLogTimeFormat()
 	}
+	l.optMu.Lock()
 	l.timeFormat = f
+	l.optMu.Unlock()
 }
 
 func checkLogLevel(lvl level.Level, currentLevel level.Level) bool {

file_logger_test.go

@@ -79,16 +79,6 @@ func TestFileLogger_WithAutoFlushWithFlushDelay(t *testing.T) {
 	<-time.After(wait * 20)
 }
 
-func TestConsoleLoggerAndFileLogger(t *testing.T) {
-	fLogger, err := NewFileLogger(level.DebugLevel, "./multi_logs", "ns")
-	if err != nil {
-		t.Fatal(err)
-	}
-	InitDefaultLogger(NewMultiLogger(NewConsoleLogger(level.DebugLevel), fLogger))
-	defer Close()
-	testLogs(t)
-}
-
 func TestFileLogger_WithSplitDate(t *testing.T) {
 	fLogger, err := NewFileLoggerWithOption(option.FileLoggerOption{
 		Level:      level.DebugLevel,

logger_test.go

@@ -5,6 +5,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/no-src/log/content"
 	"github.com/no-src/log/formatter"
 	"github.com/no-src/log/internal/sync"
 	"github.com/no-src/log/level"
@@ -17,6 +18,7 @@ var (
 )
 
 func testLogs(t *testing.T) {
+	DefaultLogger().WithFormatter(formatter.Default()).WithTimeFormat(content.DefaultLogTimeFormat())
 	Debug("%s %s, test debug log", "hello", "world")
 	Info("%s %s, test info log", "hello", "world")
 	Warn("%s %s, test warn log", "hello", "world")

multi_logger_test.go

@@ -10,17 +10,30 @@ import (
 
 func TestMultiLogger(t *testing.T) {
 	testCases := []struct {
-		name      string
-		formatter string
+		name        string
+		formatter   string
+		concurrency bool
+		timeFormat  string
 	}{
-		{"TextFormatter", formatter.TextFormatter},
-		{"JsonFormatter", formatter.JsonFormatter},
+		{"TextFormatter", formatter.TextFormatter, false, testTimeFormat},
+		{"JsonFormatter", formatter.JsonFormatter, false, testTimeFormat},
+		{"TextFormatter Concurrency", formatter.TextFormatter, true, ""},
+		{"JsonFormatter Concurrency", formatter.JsonFormatter, true, ""},
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			InitDefaultLogger(NewMultiLogger(NewConsoleLogger(level.DebugLevel).WithFormatter(formatter.New(tc.formatter))))
+			fLogger, err := NewFileLogger(level.DebugLevel, "./multi_logs", "ns"+tc.formatter)
+			if err != nil {
+				t.Fatal(err)
+			}
+			InitDefaultLogger(NewMultiLogger(NewConsoleLogger(level.DebugLevel), fLogger).WithFormatter(formatter.New(tc.formatter)).WithTimeFormat(tc.timeFormat))
 			defer Close()
-			testLogs(t)
+
+			if tc.concurrency {
+				testLogsConcurrency(t, "TestMultiLogger")
+			} else {
+				testLogs(t)
+			}
 		})
 	}
 }

sample_logger_test.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"testing"
 
+	"github.com/no-src/log/content"
 	"github.com/no-src/log/formatter"
 	"github.com/no-src/log/level"
 )
@@ -31,6 +32,7 @@ func TestSampleLogger(t *testing.T) {
 }
 
 func testSampleLogs() {
+	DefaultSampleLogger().WithFormatter(formatter.Default()).WithTimeFormat(content.DefaultLogTimeFormat())
 	DebugSample("[sample] %s %s, test debug log", "hello", "world")
 	InfoSample("[sample] %s %s, test info log", "hello", "world")
 	WarnSample("[sample] %s %s, test warn log", "hello", "world")