feat: add fields with logx methods, support using third party logging libs. (#1847)

* backup

* simplify

* chore: remove unused pool

* chore: fix lint errors

* chore: use strings.Builder instead of bytes.Buffer

* test: add more tests

* chore: fix reviewdog

* test: fix data race

* feat: make logger customizable

* chore: fix reviewdog

* test: fix fails

* chore: fix set writer twice

* chore: use context instead of golang.org context

* chore: specify uint32 for level types

rest/internal/log_test.go

@@ -2,13 +2,13 @@ package internal
 
 import (
 	"context"
-	"log"
 	"net/http"
 	"net/http/httptest"
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/zeromicro/go-zero/core/logx"
 )
 
 func TestInfo(t *testing.T) {
@@ -25,16 +25,23 @@ func TestInfo(t *testing.T) {
 }
 
 func TestError(t *testing.T) {
-	var writer strings.Builder
-	log.SetOutput(&writer)
+	var buf strings.Builder
+	w := logx.NewWriter(&buf)
+	o := logx.Reset()
+	logx.SetWriter(w)
+
+	defer func() {
+		logx.Reset()
+		logx.SetWriter(o)
+	}()
+
 	req := httptest.NewRequest(http.MethodGet, "http://localhost", nil)
 	Error(req, "first")
 	Errorf(req, "second %s", "third")
-	val := writer.String()
+	val := buf.String()
 	assert.True(t, strings.Contains(val, "first"))
 	assert.True(t, strings.Contains(val, "second"))
 	assert.True(t, strings.Contains(val, "third"))
-	assert.True(t, strings.Contains(val, "\n"))
 }
 
 func TestContextKey_String(t *testing.T) {