Re: [PATCH v2 4/4] btrfs-progs: tests: add test for receiving clone from duplicate subvolume

[Filipe Manana <fdmanana@xxxxxxxxx>]

On Tue, Jul 23, 2019 at 3:25 AM Omar Sandoval <osandov@xxxxxxxxxxx> wrote:
>
> From: Omar Sandoval <osandov@xxxxxx>
>
> This test case is the reproducer for the previous fix.
>
> Signed-off-by: Omar Sandoval <osandov@xxxxxx>

Reviewed-by: Filipe Manana <fdmanana@xxxxxxxx>

Looks good, thanks!

> ---
>  .../test.sh                                   | 34 +++++++++++++++++++
>  1 file changed, 34 insertions(+)
>  create mode 100755 tests/misc-tests/038-receive-clone-from-current-subvolume/test.sh
>
> diff --git a/tests/misc-tests/038-receive-clone-from-current-subvolume/test.sh b/tests/misc-tests/038-receive-clone-from-current-subvolume/test.sh
> new file mode 100755
> index 00000000..be648605
> --- /dev/null
> +++ b/tests/misc-tests/038-receive-clone-from-current-subvolume/test.sh
> @@ -0,0 +1,34 @@
> +#!/bin/bash
> +# Test that when receiving a subvolume whose received UUID already exists in
> +# the filesystem, we clone from the correct source (the subvolume that we are
> +# receiving, not the existing subvolume). This is a regression test for
> +# "btrfs-progs: receive: don't lookup clone root for received subvolume".
> +
> +source "$TEST_TOP/common"
> +
> +check_prereq btrfs
> +check_prereq mkfs.btrfs
> +
> +setup_root_helper
> +
> +rm -f disk
> +run_check truncate -s 1G disk
> +chmod a+w disk
> +run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f disk
> +run_check $SUDO_HELPER mount -o loop disk "$TEST_MNT"
> +
> +run_check $SUDO_HELPER "$TOP/btrfs" subvolume create "$TEST_MNT/subvol"
> +run_check $SUDO_HELPER dd if=/dev/urandom of="$TEST_MNT/subvol/foo" \
> +       bs=1M count=1 status=none
> +run_check $SUDO_HELPER cp --reflink "$TEST_MNT/subvol/foo" "$TEST_MNT/subvol/bar"
> +run_check $SUDO_HELPER mkdir "$TEST_MNT/subvol/dir"
> +run_check $SUDO_HELPER mv "$TEST_MNT/subvol/foo" "$TEST_MNT/subvol/dir"
> +run_check $SUDO_HELPER "$TOP/btrfs" property set "$TEST_MNT/subvol" ro true
> +run_check $SUDO_HELPER "$TOP/btrfs" send -f send.data "$TEST_MNT/subvol"
> +
> +run_check $SUDO_HELPER mkdir "$TEST_MNT/first" "$TEST_MNT/second"
> +run_check $SUDO_HELPER "$TOP/btrfs" receive -f send.data "$TEST_MNT/first"
> +run_check $SUDO_HELPER "$TOP/btrfs" receive -f send.data "$TEST_MNT/second"
> +
> +run_check $SUDO_HELPER umount "$TEST_MNT"
> +rm -f disk send.data
> --
> 2.22.0
>


-- 
Filipe David Manana,

“Whether you think you can, or you think you can't — you're right.”