rewrite checkpoint

vendor/github.com/jinzhu/copier/copier_benchmark_test.go

@@ -0,0 +1,45 @@
+package copier_test
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/jinzhu/copier"
+)
+
+func BenchmarkCopyStruct(b *testing.B) {
+	var fakeAge int32 = 12
+	user := User{Name: "Jinzhu", Nickname: "jinzhu", Age: 18, FakeAge: &fakeAge, Role: "Admin", Notes: []string{"hello world", "welcome"}, flags: []byte{'x'}}
+	for x := 0; x < b.N; x++ {
+		copier.Copy(&Employee{}, &user)
+	}
+}
+
+func BenchmarkNamaCopy(b *testing.B) {
+	var fakeAge int32 = 12
+	user := User{Name: "Jinzhu", Nickname: "jinzhu", Age: 18, FakeAge: &fakeAge, Role: "Admin", Notes: []string{"hello world", "welcome"}, flags: []byte{'x'}}
+	for x := 0; x < b.N; x++ {
+		employee := &Employee{
+			Name:      user.Name,
+			Nickname:  &user.Nickname,
+			Age:       int64(user.Age),
+			FakeAge:   int(*user.FakeAge),
+			DoubleAge: user.DoubleAge(),
+			Notes:     user.Notes,
+		}
+		employee.Role(user.Role)
+	}
+}
+
+func BenchmarkJsonMarshalCopy(b *testing.B) {
+	var fakeAge int32 = 12
+	user := User{Name: "Jinzhu", Nickname: "jinzhu", Age: 18, FakeAge: &fakeAge, Role: "Admin", Notes: []string{"hello world", "welcome"}, flags: []byte{'x'}}
+	for x := 0; x < b.N; x++ {
+		data, _ := json.Marshal(user)
+		var employee Employee
+		json.Unmarshal(data, &employee)
+
+		employee.DoubleAge = user.DoubleAge()
+		employee.Role(user.Role)
+	}
+}