50 lines
1.9 KiB
Nix
50 lines
1.9 KiB
Nix
import ./make-test-python.nix ({ pkgs, ... }: {
|
|
name = "overlayfs";
|
|
meta.maintainers = with pkgs.lib.maintainers; [ bachp ];
|
|
|
|
machine = { pkgs, ... }: {
|
|
virtualisation.emptyDiskImages = [ 512 ];
|
|
networking.hostId = "deadbeef";
|
|
environment.systemPackages = with pkgs; [ parted ];
|
|
};
|
|
|
|
testScript = ''
|
|
machine.succeed("ls /dev")
|
|
|
|
machine.succeed("mkdir -p /tmp/mnt")
|
|
|
|
# Test ext4 + overlayfs
|
|
machine.succeed(
|
|
"""
|
|
mkfs.ext4 -F -L overlay-ext4 /dev/vdb
|
|
mount -t ext4 /dev/vdb /tmp/mnt
|
|
mkdir -p /tmp/mnt/upper /tmp/mnt/lower /tmp/mnt/work /tmp/mnt/merged
|
|
# Setup some existing files
|
|
echo 'Replace' > /tmp/mnt/lower/replace.txt
|
|
echo 'Append' > /tmp/mnt/lower/append.txt
|
|
echo 'Overwrite' > /tmp/mnt/lower/overwrite.txt
|
|
mount -t overlay overlay -o lowerdir=/tmp/mnt/lower,upperdir=/tmp/mnt/upper,workdir=/tmp/mnt/work /tmp/mnt/merged
|
|
# Test new
|
|
echo 'New' > /tmp/mnt/merged/new.txt
|
|
[[ "\$(cat /tmp/mnt/merged/new.txt)" == "New" ]]
|
|
# Test replace
|
|
[[ "\$(cat /tmp/mnt/merged/replace.txt)" == "Replace" ]]
|
|
echo 'Replaced' > /tmp/mnt/merged/replace-tmp.txt
|
|
mv /tmp/mnt/merged/replace-tmp.txt /tmp/mnt/merged/replace.txt
|
|
[[ "\$(cat /tmp/mnt/merged/replace.txt)" == "Replaced" ]]
|
|
# Overwrite
|
|
[[ "\$(cat /tmp/mnt/merged/overwrite.txt)" == "Overwrite" ]]
|
|
echo 'Overwritten' > /tmp/mnt/merged/overwrite.txt
|
|
[[ "\$(cat /tmp/mnt/merged/overwrite.txt)" == "Overwritten" ]]
|
|
# Test append
|
|
[[ "\$(cat /tmp/mnt/merged/append.txt)" == "Append" ]]
|
|
echo 'ed' >> /tmp/mnt/merged/append.txt
|
|
#"cat /tmp/mnt/merged/append.txt && exit 1
|
|
[[ "\$(cat /tmp/mnt/merged/append.txt)" == "Append\ned" ]]
|
|
umount /tmp/mnt/merged
|
|
umount /tmp/mnt
|
|
udevadm settle
|
|
"""
|
|
)
|
|
'';
|
|
})
|