import ./make-test-python.nix ({ lib, pkgs, ... }: { name = "bees"; machine = { config, pkgs, ... }: { boot.initrd.postDeviceCommands = '' ${pkgs.btrfs-progs}/bin/mkfs.btrfs -f -L aux1 /dev/vdb ${pkgs.btrfs-progs}/bin/mkfs.btrfs -f -L aux2 /dev/vdc ''; virtualisation.emptyDiskImages = [ 4096 4096 ]; virtualisation.fileSystems = { "/aux1" = { # filesystem configured to be deduplicated device = "/dev/disk/by-label/aux1"; fsType = "btrfs"; }; "/aux2" = { # filesystem not configured to be deduplicated device = "/dev/disk/by-label/aux2"; fsType = "btrfs"; }; }; services.beesd.filesystems = { aux1 = { spec = "LABEL=aux1"; hashTableSizeMB = 16; verbosity = "debug"; }; }; }; testScript = let someContentIsShared = loc: pkgs.writeShellScript "some-content-is-shared" '' [[ $(btrfs fi du -s --raw ${lib.escapeShellArg loc}/dedup-me-{1,2} | awk 'BEGIN { count=0; } NR>1 && $3 == 0 { count++ } END { print count }') -eq 0 ]] ''; in '' # shut down the instance started by systemd at boot, so we can test our test procedure machine.succeed("systemctl stop beesd@aux1.service") machine.succeed( "dd if=/dev/urandom of=/aux1/dedup-me-1 bs=1M count=8", "cp --reflink=never /aux1/dedup-me-1 /aux1/dedup-me-2", "cp --reflink=never /aux1/* /aux2/", "sync", ) machine.fail( "${someContentIsShared "/aux1"}", "${someContentIsShared "/aux2"}", ) machine.succeed("systemctl start beesd@aux1.service") # assert that "Set Shared" column is nonzero machine.wait_until_succeeds( "${someContentIsShared "/aux1"}", ) machine.fail("${someContentIsShared "/aux2"}") # assert that 16MB hash table size requested was honored machine.succeed( "[[ $(stat -c %s /aux1/.beeshome/beeshash.dat) = $(( 16 * 1024 * 1024)) ]]" ) ''; })