package xerr

import (
	"testing"

	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

// TestToGRPCErrorCarriesReason 锁定服务底座要求的 gRPC code + ErrorInfo.reason 组合。
func TestToGRPCErrorCarriesReason(t *testing.T) {
	err := ToGRPCError(New(PasswordAlreadySet, "password already set"))

	st, ok := status.FromError(err)
	if !ok {
		t.Fatalf("expected grpc status")
	}

	if st.Code() != codes.AlreadyExists {
		t.Fatalf("grpc code mismatch: got %s", st.Code())
	}

	if got := ReasonFromGRPC(err); got != PasswordAlreadySet {
		t.Fatalf("reason mismatch: got %s want %s", got, PasswordAlreadySet)
	}
}