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Diffstat (limited to 'nixos/tests/bees.nix')
-rw-r--r-- | nixos/tests/bees.nix | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/nixos/tests/bees.nix b/nixos/tests/bees.nix new file mode 100644 index 00000000000..58a9c295135 --- /dev/null +++ b/nixos/tests/bees.nix @@ -0,0 +1,62 @@ +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)) ]]" + ) + ''; +}) |