logger: add wrapper support

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

logger/logger_test.go

@@ -1,6 +1,7 @@
 package logger
 
 import (
+	"bytes"
 	"context"
 	"testing"
 )
@@ -16,3 +17,21 @@ func TestLogger(t *testing.T) {
 	l.Fields(map[string]interface{}{"error": "test"}).Info(ctx, "error message")
 	l.Warn(ctx, "first", " ", "second")
 }
+
+func TestLoggerWrapper(t *testing.T) {
+	ctx := context.TODO()
+	buf := bytes.NewBuffer(nil)
+	l := NewLogger(WithLevel(TraceLevel), WithOutput(buf))
+	if err := l.Init(WrapLogger(NewOmitWrapper())); err != nil {
+		t.Fatal(err)
+	}
+	type secret struct {
+		Name  string
+		Passw string `logger:"omit"`
+	}
+	s := &secret{Name: "name", Passw: "secret"}
+	l.Errorf(ctx, "test %#+v", s)
+	if !bytes.Contains(buf.Bytes(), []byte(`logger.secret{Name:\"name\", Passw:\"\"}"`)) {
+		t.Fatalf("omit not works, struct: %v, output: %s", s, buf.Bytes())
+	}
+}