Fix tests for Debug and add information about log levels

README.md

@@ -43,6 +43,7 @@ func main () {
 	log.Critical("This is Critical!")
 	log.CriticalF("%+v", err)
 	// Debug
+	// Since default logging level is Info this won't print anything
 	log.Debug("This is Debug!")
 	log.DebugF("Here are some numbers: %d %d %f", 10, -3, 3.14)
 	// Give the Warning
@@ -67,11 +68,20 @@ func main () {
 	logger.SetDefaultFormat("%{message}")
 	log2, _ := logger.New("pkg", 1, os.Stdout)
 	log2.Error("This is Error!") // output: "This is Error!"
+
+	// Use log levels to set your log priority
+	log2.SetLogLevel(DebugLevel)
+	// This will be printed
+	log2.Debug("This is debug!")
+	log2.SetLogLevel(WarningLevel)
+	// This won't be printed
+	log2.Info("This is an error!")
 }
 ```
 
 
 # Formatting
+
 By default all log messages have format that you can see above (on pic).
 But you can override the default format and set format that you want.
 
@@ -112,7 +122,7 @@ Invalid verbs (like ```%{inv-verb```) will be treated as plain text.
 
 # Tests
 
-Run: 
+Run:
 - `go test logger` to run test on logger.
 - `go test -bench=.` for benchmarks.
 
@@ -130,4 +140,3 @@ Following contributors have made major contributions to go-logger:
 ## License
 
 The [BSD 3-Clause license](http://opensource.org/licenses/BSD-3-Clause), the same as the [Go language](http://golang.org/LICENSE).
-

logger.go

@@ -464,8 +464,8 @@ func (info *Info) logLevelString() string {
 		"ERROR",
 		"WARNING",
 		"NOTICE",
-		"DEBUG",
 		"INFO",
+		"DEBUG",
 	}
 	return logLevels[info.Level-1]
 }

logger_test.go

@@ -149,9 +149,13 @@ func TestLogger_SetFormat(t *testing.T) {
 	if err != nil || log == nil {
 		panic(err)
 	}
+
+	log.SetLogLevel(DebugLevel)
 	log.Debug("Test")
+	log.SetLogLevel(InfoLevel)
+
 	want := time.Now().Format("2006-01-02 15:04:05")
-	want = fmt.Sprintf("#1 %s logger_test.go:152 ▶ DEB Test\n", want)
+	want = fmt.Sprintf("#1 %s logger_test.go:154 ▶ DEB Test\n", want)
 	have := buf.String()
 	if have != want {
 		t.Errorf("\nWant: %sHave: %s", want, have)
@@ -176,7 +180,7 @@ func TestLogger_SetFormat(t *testing.T) {
 			"a{b pkgname "+
 			"a}b logger_test.go "+
 			"%%%% logger_test.go "+ // it's printf, escaping %, don't forget
-			"%%{171 "+
+			"%%{175 "+
 			" ERR "+
 			"%%{incorr_verb ERROR "+
 			" [This is Error!]\n",