package dial

import (
	"context"
	"database/sql"
	"testing"

	_ "github.com/go-sql-driver/mysql"
	"github.com/redis/go-redis/v9"
	"google.golang.org/grpc"
)

func TestMySQL(t *testing.T) {
	// This connection is invalid
	db, err := sql.Open("mysql", "username:password@tcp(hostname:port)/database_name")
	if err != nil {
		panic(err.Error())
	}
	defer db.Close()

	// test connection
	err = db.Ping()
	if err == nil {
		t.Fatal("expected error") // <--- Success
	}
}

func TestGRPC(t *testing.T) {
	// This connection is invalid
	conn, err := grpc.Dial("hostname:port", grpc.WithInsecure())
	if err != nil {
		panic(err.Error())
	}
	defer conn.Close()

	// test invoke
	err = conn.Invoke(context.Background(), "/service_name", nil, nil)
	if err == nil {
		t.Fatal("expected error") // <--- Success
	}
}

func TestRedis(t *testing.T) {
	rdb := redis.NewClient(&redis.Options{
		Addr: "hostname:port",
	})

	// test connection
	_, err := rdb.Ping(context.Background()).Result()
	if err == nil {
		t.Fatal("expected error") // <--- Success
	}
}