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// Copyright (C) 2023 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package btrfsprim
import (
"testing"
"github.com/stretchr/testify/assert"
)
func k(objID ObjID, typ ItemType, offset uint64) Key {
return Key{
ObjectID: objID,
ItemType: typ,
Offset: offset,
}
}
func eq(t *testing.T, act, exp Key) {
t.Helper()
assert.Equal(t, exp, act)
}
func ppEq(t *testing.T, in, exp Key) {
t.Helper()
eq(t, in.Pp(), exp)
if in != MaxKey {
eq(t, exp.Mm(), in)
}
}
func mmEq(t *testing.T, in, exp Key) {
t.Helper()
eq(t, in.Mm(), exp)
if in != (Key{}) {
eq(t, exp.Pp(), in)
}
}
func TestKey(t *testing.T) {
t.Parallel()
eq(t, MaxKey, k(18446744073709551615, 255, 18446744073709551615))
// pp
ppEq(t, k(0, 0, 0), k(0, 0, 1))
ppEq(t, k(0, 0, 18446744073709551615), k(0, 1, 0))
ppEq(t, k(0, 255, 0), k(0, 255, 1))
ppEq(t, k(0, 255, 18446744073709551615), k(1, 0, 0))
ppEq(t, MaxKey, k(18446744073709551615, 255, 18446744073709551615))
// mm
mmEq(t, MaxKey, k(18446744073709551615, 255, 18446744073709551614))
mmEq(t, k(18446744073709551615, 255, 0), k(18446744073709551615, 254, 18446744073709551615))
mmEq(t, k(18446744073709551615, 0, 0), k(18446744073709551614, 255, 18446744073709551615))
mmEq(t, k(0, 0, 0), k(0, 0, 0))
}
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