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[#225] container: Replace basic ACL code to a separate package

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Create `acl` package inside `container` path. Replace basic ACL
functionality into it.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2022-06-20 18:28:27 +03:00 • committed by fyrchik
parent e82a2d86ef
commit c4ebe8d854
14 changed files with 524 additions and 499 deletions
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133
container/acl/util_test.go Normal file
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@ -0,0 +1,133 @@
package acl
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
)
func TestBits(t *testing.T) {
num := uint32(0b10110)
require.False(t, isBitSet(num, 0))
require.True(t, isBitSet(num, 1))
require.True(t, isBitSet(num, 2))
require.False(t, isBitSet(num, 3))
require.True(t, isBitSet(num, 4))
require.False(t, isBitSet(num, 5))
setBit(&num, 3)
require.EqualValues(t, 0b11110, num)
setBit(&num, 6)
require.EqualValues(t, 0b1011110, num)
resetBit(&num, 1)
require.EqualValues(t, 0b1011100, num)
}
func TestOpBits(t *testing.T) {
num := uint32(0b_1001_0101_1100_0011_0110_0111_1000_1111)
require.Panics(t, func() { isOpBitSet(num, opZero, 0) })
require.Panics(t, func() { isOpBitSet(num, opLast, 0) })
cpNum := num
require.Panics(t, func() { setOpBit(&num, opZero, 0) })
require.EqualValues(t, cpNum, num)
require.Panics(t, func() { setOpBit(&num, opLast, 0) })
require.EqualValues(t, cpNum, num)
for _, tc := range []struct {
op Op
set [4]bool // is bit set (left-to-right)
bits [4]uint32 // result of setting i-th bit (left-to-right) to zero num
}{
{
op: OpObjectHash,
set: [4]bool{false, true, false, true},
bits: [4]uint32{
0b_0000_1000_0000_0000_0000_0000_0000_0000,
0b_0000_0100_0000_0000_0000_0000_0000_0000,
0b_0000_0010_0000_0000_0000_0000_0000_0000,
0b_0000_0001_0000_0000_0000_0000_0000_0000,
},
},
{
op: OpObjectRange,
set: [4]bool{true, true, false, false},
bits: [4]uint32{
0b_0000_0000_1000_0000_0000_0000_0000_0000,
0b_0000_0000_0100_0000_0000_0000_0000_0000,
0b_0000_0000_0010_0000_0000_0000_0000_0000,
0b_0000_0000_0001_0000_0000_0000_0000_0000,
},
},
{
op: OpObjectSearch,
set: [4]bool{false, false, true, true},
bits: [4]uint32{
0b_0000_0000_0000_1000_0000_0000_0000_0000,
0b_0000_0000_0000_0100_0000_0000_0000_0000,
0b_0000_0000_0000_0010_0000_0000_0000_0000,
0b_0000_0000_0000_0001_0000_0000_0000_0000,
},
},
{
op: OpObjectDelete,
set: [4]bool{false, true, true, false},
bits: [4]uint32{
0b_0000_0000_0000_0000_1000_0000_0000_0000,
0b_0000_0000_0000_0000_0100_0000_0000_0000,
0b_0000_0000_0000_0000_0010_0000_0000_0000,
0b_0000_0000_0000_0000_0001_0000_0000_0000,
},
},
{
op: OpObjectPut,
set: [4]bool{false, true, true, true},
bits: [4]uint32{
0b_0000_0000_0000_0000_0000_1000_0000_0000,
0b_0000_0000_0000_0000_0000_0100_0000_0000,
0b_0000_0000_0000_0000_0000_0010_0000_0000,
0b_0000_0000_0000_0000_0000_0001_0000_0000,
},
},
{
op: OpObjectHead,
set: [4]bool{true, false, false, false},
bits: [4]uint32{
0b_0000_0000_0000_0000_0000_0000_1000_0000,
0b_0000_0000_0000_0000_0000_0000_0100_0000,
0b_0000_0000_0000_0000_0000_0000_0010_0000,
0b_0000_0000_0000_0000_0000_0000_0001_0000,
},
},
{
op: OpObjectGet,
set: [4]bool{true, true, true, true},
bits: [4]uint32{
0b_0000_0000_0000_0000_0000_0000_0000_1000,
0b_0000_0000_0000_0000_0000_0000_0000_0100,
0b_0000_0000_0000_0000_0000_0000_0000_0010,
0b_0000_0000_0000_0000_0000_0000_0000_0001,
},
},
} {
for i := range tc.set {
require.EqualValues(t, tc.set[i], isOpBitSet(num, tc.op, uint8(len(tc.set)-1-i)),
fmt.Sprintf("op %s, left bit #%d", tc.op, i),
)
}
for i := range tc.bits {
num := uint32(0)
setOpBit(&num, tc.op, uint8(len(tc.bits)-1-i))
require.EqualValues(t, tc.bits[i], num)
}
}
}