package mssql

import (
	"encoding/hex"
	"regexp"
	"testing"
)

func TestParseFeatureExtAck(t *testing.T) {
	spacesRE := regexp.MustCompile(`\s+`)

	tests := []string{
		"  FF",
		"  01 03 00 00 00 AB CD EF FF",
		"  02 00 00 00 00 FF\n",
		"  02 20 00 00 00 00 01 02  03 04 05 06 07 08 09 0A\n" +
			"0B 0C 0D 0E 0F 10 11 12  13 14 15 16 17 18 19 1A\n" +
			"1B 1C 1D 1E 1F FF\n",
		"  02 40 00 00 00 00 01 02  03 04 05 06 07 08 09 0A\n" +
			"0B 0C 0D 0E 0F 10 11 12  13 14 15 16 17 18 19 1A\n" +
			"1B 1C 1D 1E 1F 20 21 22  23 24 25 26 27 28 29 2A\n" +
			"2B 2C 2D 2E 2F 30 31 32  33 34 35 36 37 38 39 3A\n" +
			"3B 3C 3D 3E 3F FF\n",
	}

	for _, tst := range tests {
		b, err := hex.DecodeString(spacesRE.ReplaceAllString(tst, ""))
		if err != nil {
			t.Log(err)
			t.FailNow()
		}

		r := &tdsBuffer{
			packetSize: len(b),
			rbuf:       b,
			rpos:       0,
			rsize:      len(b),
		}

		parseFeatureExtAck(r)
	}
}