fix: error code judgment (#1849)

* fix error code judgment

* fix errors test

errors/errors.go

@@ -38,7 +38,7 @@ func (e *Error) GRPCStatus() *status.Status {
 // Is matches each error in the chain with the target value.
 func (e *Error) Is(err error) bool {
 	if se := new(Error); errors.As(err, &se) {
-		return se.Reason == e.Reason
+		return se.Code == e.Code && se.Reason == e.Reason
 	}
 	return false
 }

errors/errors_test.go

@@ -76,7 +76,7 @@ func TestIs(t *testing.T) {
 	}{
 		{
 			name: "true",
-			e:    &Error{Reason: "test"},
+			e:    &Error{Code: 404, Reason: "test"},
 			err:  New(http.StatusNotFound, "test", ""),
 			want: true,
 		},