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