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hakurei/container/mount_test.go
Ophestra 7638a44fa6
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treewide: parallel tests 
Most tests already had no global state, however parallel was never enabled. This change enables it for all applicable tests.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-10-13 04:38:48 +09:00

295 lines
18 KiB
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package container
import (
"os"
"syscall"
"testing"
"hakurei.app/container/stub"
"hakurei.app/container/vfs"
)
func TestBindMount(t *testing.T) {
t.Parallel()
checkSimple(t, "bindMount", []simpleTestCase{
{"mount", func(k *kstub) error {
return newProcPaths(k, hostPath).bindMount(nil, "/host/nix", "/sysroot/nix", syscall.MS_RDONLY)
}, stub.Expect{Calls: []stub.Call{
call("mount", stub.ExpectArgs{"/host/nix", "/sysroot/nix", "", uintptr(0x9000), ""}, nil, stub.UniqueError(0xbad)),
}}, stub.UniqueError(0xbad)},
{"success ne", func(k *kstub) error {
return newProcPaths(k, hostPath).bindMount(k, "/host/nix", "/sysroot/.host-nix", syscall.MS_RDONLY)
}, stub.Expect{Calls: []stub.Call{
call("mount", stub.ExpectArgs{"/host/nix", "/sysroot/.host-nix", "", uintptr(0x9000), ""}, nil, nil),
call("remount", stub.ExpectArgs{"/sysroot/.host-nix", uintptr(1)}, nil, nil),
}}, nil},
{"success", func(k *kstub) error {
return newProcPaths(k, hostPath).bindMount(k, "/host/nix", "/sysroot/nix", syscall.MS_RDONLY)
}, stub.Expect{Calls: []stub.Call{
call("mount", stub.ExpectArgs{"/host/nix", "/sysroot/nix", "", uintptr(0x9000), ""}, nil, nil),
call("remount", stub.ExpectArgs{"/sysroot/nix", uintptr(1)}, nil, nil),
}}, nil},
})
}
func TestRemount(t *testing.T) {
t.Parallel()
const sampleMountinfoNix = `254 407 253:0 / /host rw,relatime master:1 - ext4 /dev/disk/by-label/nixos rw
255 254 0:28 / /host/mnt/.ro-cwd ro,noatime master:2 - 9p cwd ro,access=client,msize=16384,trans=virtio
256 254 0:29 / /host/nix/.ro-store rw,relatime master:3 - 9p nix-store rw,cache=f,access=client,msize=16384,trans=virtio
257 254 0:30 / /host/nix/store rw,relatime master:4 - overlay overlay rw,lowerdir=/mnt-root/nix/.ro-store,upperdir=/mnt-root/nix/.rw-store/upper,workdir=/mnt-root/nix/.rw-store/work
258 257 0:30 / /host/nix/store ro,relatime master:5 - overlay overlay rw,lowerdir=/mnt-root/nix/.ro-store,upperdir=/mnt-root/nix/.rw-store/upper,workdir=/mnt-root/nix/.rw-store/work
259 254 0:33 / /host/tmp/shared rw,relatime master:6 - 9p shared rw,access=client,msize=16384,trans=virtio
260 254 0:34 / /host/tmp/xchg rw,relatime master:7 - 9p xchg rw,access=client,msize=16384,trans=virtio
261 254 0:22 / /host/proc rw,nosuid,nodev,noexec,relatime master:8 - proc proc rw
262 254 0:25 / /host/sys rw,nosuid,nodev,noexec,relatime master:9 - sysfs sysfs rw
263 262 0:7 / /host/sys/kernel/security rw,nosuid,nodev,noexec,relatime master:10 - securityfs securityfs rw
264 262 0:35 /../../.. /host/sys/fs/cgroup rw,nosuid,nodev,noexec,relatime master:11 - cgroup2 cgroup2 rw,nsdelegate,memory_recursiveprot
265 262 0:36 / /host/sys/fs/pstore rw,nosuid,nodev,noexec,relatime master:12 - pstore pstore rw
266 262 0:37 / /host/sys/fs/bpf rw,nosuid,nodev,noexec,relatime master:13 - bpf bpf rw,mode=700
267 262 0:12 / /host/sys/kernel/tracing rw,nosuid,nodev,noexec,relatime master:20 - tracefs tracefs rw
268 262 0:8 / /host/sys/kernel/debug rw,nosuid,nodev,noexec,relatime master:21 - debugfs debugfs rw
269 262 0:44 / /host/sys/kernel/config rw,nosuid,nodev,noexec,relatime master:64 - configfs configfs rw
270 262 0:45 / /host/sys/fs/fuse/connections rw,nosuid,nodev,noexec,relatime master:66 - fusectl fusectl rw
271 254 0:6 / /host/dev rw,nosuid master:14 - devtmpfs devtmpfs rw,size=200532k,nr_inodes=498943,mode=755
324 271 0:20 / /host/dev/pts rw,nosuid,noexec,relatime master:15 - devpts devpts rw,gid=3,mode=620,ptmxmode=666
378 271 0:21 / /host/dev/shm rw,nosuid,nodev master:16 - tmpfs tmpfs rw
379 271 0:19 / /host/dev/mqueue rw,nosuid,nodev,noexec,relatime master:19 - mqueue mqueue rw
388 271 0:38 / /host/dev/hugepages rw,nosuid,nodev,relatime master:22 - hugetlbfs hugetlbfs rw,pagesize=2M
397 254 0:23 / /host/run rw,nosuid,nodev master:17 - tmpfs tmpfs rw,size=1002656k,mode=755
398 397 0:24 / /host/run/keys rw,nosuid,nodev,relatime master:18 - ramfs ramfs rw,mode=750
399 397 0:39 / /host/run/credentials/systemd-journald.service ro,nosuid,nodev,noexec,relatime,nosymfollow master:23 - tmpfs tmpfs rw,size=1024k,nr_inodes=1024,mode=700,noswap
400 397 0:43 / /host/run/wrappers rw,nodev,relatime master:93 - tmpfs tmpfs rw,mode=755
401 397 0:61 / /host/run/credentials/getty@tty1.service ro,nosuid,nodev,noexec,relatime,nosymfollow master:240 - tmpfs tmpfs rw,size=1024k,nr_inodes=1024,mode=700,noswap
402 397 0:62 / /host/run/credentials/serial-getty@ttyS0.service ro,nosuid,nodev,noexec,relatime,nosymfollow master:288 - tmpfs tmpfs rw,size=1024k,nr_inodes=1024,mode=700,noswap
403 397 0:63 / /host/run/user/1000 rw,nosuid,nodev,relatime master:295 - tmpfs tmpfs rw,size=401060k,nr_inodes=100265,mode=700,uid=1000,gid=100
404 254 0:46 / /host/mnt/cwd rw,relatime master:96 - overlay overlay rw,lowerdir=/mnt/.ro-cwd,upperdir=/tmp/.cwd/upper,workdir=/tmp/.cwd/work
405 254 0:47 / /host/mnt/src rw,relatime master:99 - overlay overlay rw,lowerdir=/nix/store/ihcrl3zwvp2002xyylri2wz0drwajx4z-ns0pa7q2b1jpx9pbf1l9352x6rniwxjn-source,upperdir=/tmp/.src/upper,workdir=/tmp/.src/work
407 253 0:65 / / rw,nosuid,nodev,relatime - tmpfs rootfs rw,uid=1000000,gid=1000000
408 407 0:65 /sysroot /sysroot rw,nosuid,nodev,relatime - tmpfs rootfs rw,uid=1000000,gid=1000000
409 408 253:0 /bin /sysroot/bin rw,nosuid,nodev,relatime master:1 - ext4 /dev/disk/by-label/nixos rw
410 408 253:0 /home /sysroot/home rw,nosuid,nodev,relatime master:1 - ext4 /dev/disk/by-label/nixos rw
411 408 253:0 /lib64 /sysroot/lib64 rw,nosuid,nodev,relatime master:1 - ext4 /dev/disk/by-label/nixos rw
412 408 253:0 /lost+found /sysroot/lost+found rw,nosuid,nodev,relatime master:1 - ext4 /dev/disk/by-label/nixos rw
413 408 253:0 /nix /sysroot/nix rw,relatime master:1 - ext4 /dev/disk/by-label/nixos rw
414 413 0:29 / /sysroot/nix/.ro-store rw,relatime master:3 - 9p nix-store rw,cache=f,access=client,msize=16384,trans=virtio
415 413 0:30 / /sysroot/nix/store rw,relatime master:4 - overlay overlay rw,lowerdir=/mnt-root/nix/.ro-store,upperdir=/mnt-root/nix/.rw-store/upper,workdir=/mnt-root/nix/.rw-store/work
416 415 0:30 / /sysroot/nix/store ro,relatime master:5 - overlay overlay rw,lowerdir=/mnt-root/nix/.ro-store,upperdir=/mnt-root/nix/.rw-store/upper,workdir=/mnt-root/nix/.rw-store/work`
checkSimple(t, "remount", []simpleTestCase{
{"evalSymlinks", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", stub.UniqueError(6)),
}}, stub.UniqueError(6)},
{"open", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, stub.UniqueError(5)),
}}, &os.PathError{Op: "open", Path: "/sysroot/nix", Err: stub.UniqueError(5)}},
{"readlink", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", stub.UniqueError(4)),
}}, stub.UniqueError(4)},
{"close", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, stub.UniqueError(3)),
}}, &os.PathError{Op: "close", Path: "/sysroot/nix", Err: stub.UniqueError(3)}},
{"mountinfo no match", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(k, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/.hakurei", nil),
call("verbosef", stub.ExpectArgs{"target resolves to %q", []any{"/sysroot/.hakurei"}}, nil, nil),
call("open", stub.ExpectArgs{"/sysroot/.hakurei", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/.hakurei", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
}}, &vfs.DecoderError{Op: "unfold", Line: -1, Err: vfs.UnfoldTargetError("/sysroot/.hakurei")}},
{"mountinfo", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile("\x00"), nil),
}}, &vfs.DecoderError{Op: "parse", Line: 0, Err: vfs.ErrMountInfoFields}},
{"mount", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix", "", uintptr(0x209027), ""}, nil, stub.UniqueError(2)),
}}, stub.UniqueError(2)},
{"mount propagate", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix", "", uintptr(0x209027), ""}, nil, nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/.ro-store", "", uintptr(0x209027), ""}, nil, stub.UniqueError(1)),
}}, stub.UniqueError(1)},
{"success toplevel", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/bin", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/bin"}, "/sysroot/bin", nil),
call("open", stub.ExpectArgs{"/sysroot/bin", 0x280000, uint32(0)}, 0xbabe, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/47806"}, "/sysroot/bin", nil),
call("close", stub.ExpectArgs{0xbabe}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/bin", "", uintptr(0x209027), ""}, nil, nil),
}}, nil},
{"success EACCES", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix", "", uintptr(0x209027), ""}, nil, nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/.ro-store", "", uintptr(0x209027), ""}, nil, syscall.EACCES),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/store", "", uintptr(0x209027), ""}, nil, nil),
}}, nil},
{"success no propagate", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix", "", uintptr(0x209027), ""}, nil, nil),
}}, nil},
{"success case sensitive", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(nil, "/sysroot/nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/nix"}, "/sysroot/nix", nil),
call("open", stub.ExpectArgs{"/sysroot/nix", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix", "", uintptr(0x209027), ""}, nil, nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/.ro-store", "", uintptr(0x209027), ""}, nil, nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/store", "", uintptr(0x209027), ""}, nil, nil),
}}, nil},
{"success", func(k *kstub) error {
return newProcPaths(k, hostPath).remount(k, "/sysroot/.nix", syscall.MS_REC|syscall.MS_RDONLY|syscall.MS_NODEV)
}, stub.Expect{Calls: []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/sysroot/.nix"}, "/sysroot/NIX", nil),
call("verbosef", stub.ExpectArgs{"target resolves to %q", []any{"/sysroot/NIX"}}, nil, nil),
call("open", stub.ExpectArgs{"/sysroot/NIX", 0x280000, uint32(0)}, 0xdeadbeef, nil),
call("readlink", stub.ExpectArgs{"/host/proc/self/fd/3735928559"}, "/sysroot/nix", nil),
call("close", stub.ExpectArgs{0xdeadbeef}, nil, nil),
call("openNew", stub.ExpectArgs{"/host/proc/self/mountinfo"}, newConstFile(sampleMountinfoNix), nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix", "", uintptr(0x209027), ""}, nil, nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/.ro-store", "", uintptr(0x209027), ""}, nil, nil),
call("mount", stub.ExpectArgs{"none", "/sysroot/nix/store", "", uintptr(0x209027), ""}, nil, nil),
}}, nil},
})
}
func TestRemountWithFlags(t *testing.T) {
t.Parallel()
checkSimple(t, "remountWithFlags", []simpleTestCase{
{"noop unmatched", func(k *kstub) error {
return remountWithFlags(k, k, &vfs.MountInfoNode{MountInfoEntry: &vfs.MountInfoEntry{VfsOptstr: "rw,relatime,cat"}}, 0)
}, stub.Expect{Calls: []stub.Call{
call("verbosef", stub.ExpectArgs{"unmatched vfs options: %q", []any{[]string{"cat"}}}, nil, nil),
}}, nil},
{"noop", func(k *kstub) error {
return remountWithFlags(k, nil, &vfs.MountInfoNode{MountInfoEntry: &vfs.MountInfoEntry{VfsOptstr: "rw,relatime"}}, 0)
}, stub.Expect{}, nil},
{"success", func(k *kstub) error {
return remountWithFlags(k, nil, &vfs.MountInfoNode{MountInfoEntry: &vfs.MountInfoEntry{VfsOptstr: "rw,relatime"}}, syscall.MS_RDONLY)
}, stub.Expect{Calls: []stub.Call{
call("mount", stub.ExpectArgs{"none", "", "", uintptr(0x209021), ""}, nil, nil),
}}, nil},
})
}
func TestMountTmpfs(t *testing.T) {
t.Parallel()
checkSimple(t, "mountTmpfs", []simpleTestCase{
{"mkdirAll", func(k *kstub) error {
return mountTmpfs(k, "ephemeral", "/sysroot/run/user/1000", 0, 1<<10, 0700)
}, stub.Expect{Calls: []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/run/user/1000", os.FileMode(0700)}, nil, stub.UniqueError(0)),
}}, stub.UniqueError(0)},
{"success no size", func(k *kstub) error {
return mountTmpfs(k, "ephemeral", "/sysroot/run/user/1000", 0, 0, 0710)
}, stub.Expect{Calls: []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/run/user/1000", os.FileMode(0750)}, nil, nil),
call("mount", stub.ExpectArgs{"ephemeral", "/sysroot/run/user/1000", "tmpfs", uintptr(0), "mode=0710"}, nil, nil),
}}, nil},
{"success", func(k *kstub) error {
return mountTmpfs(k, "ephemeral", "/sysroot/run/user/1000", 0, 1<<10, 0700)
}, stub.Expect{Calls: []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/run/user/1000", os.FileMode(0700)}, nil, nil),
call("mount", stub.ExpectArgs{"ephemeral", "/sysroot/run/user/1000", "tmpfs", uintptr(0), "mode=0700,size=1024"}, nil, nil),
}}, nil},
})
}
func TestParentPerm(t *testing.T) {
t.Parallel()
testCases := []struct {
perm os.FileMode
want os.FileMode
}{
{0755, 0755},
{0750, 0750},
{0705, 0705},
{0700, 0700},
{050, 0750},
{05, 0705},
{0, 0700},
}
for _, tc := range testCases {
t.Run(tc.perm.String(), func(t *testing.T) {
t.Parallel()
if got := parentPerm(tc.perm); got != tc.want {
t.Errorf("parentPerm: %#o, want %#o", got, tc.want)
}
})
}
}
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