add DumpJson for package gutil (#2651)

frame/g/g_func.go

@@ -56,6 +56,11 @@ func DumpWithOption(value interface{}, option gutil.DumpOption) {
 	gutil.DumpWithOption(value, option)
 }
 
+// DumpJson pretty dumps json content to stdout.
+func DumpJson(jsonContent string) {
+	gutil.DumpJson(jsonContent)
+}
+
 // Throw throws an exception, which can be caught by TryCatch function.
 func Throw(exception interface{}) {
 	gutil.Throw(exception)

util/gutil/gutil_dump.go

@@ -8,6 +8,7 @@ package gutil
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"io"
 	"reflect"
@@ -469,3 +470,15 @@ func addSlashesForString(s string) string {
 		"\n": `\n`,
 	})
 }
+
+// DumpJson pretty dumps json content to stdout.
+func DumpJson(jsonContent string) {
+	var (
+		buffer    = bytes.NewBuffer(nil)
+		jsonBytes = []byte(jsonContent)
+	)
+	if err := json.Indent(buffer, jsonBytes, "", "\t"); err != nil {
+		fmt.Println(err.Error())
+	}
+	fmt.Println(buffer.String())
+}

util/gutil/gutil_z_unit_dump_test.go

@@ -288,3 +288,10 @@ func Test_Dump_Cycle_Attribute(t *testing.T) {
 		t.Assert(gstr.Contains(buffer.String(), "cycle"), true)
 	})
 }
+
+func Test_DumpJson(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		var jsonContent = `{"a":1,"b":2}`
+		gutil.DumpJson(jsonContent)
+	})
+}