nixos/stratis: wait for devices to appear in tests

Nick Cao 6ec928d7 7398c337

Changed files
+2
nixos
tests
stratis
+2
nixos/tests/stratis/simple.nix
···
machine.succeed("stratis filesystem rename testpool testfs0 testfs1")
# test snapshot
machine.succeed("mkdir -p /mnt/testfs1 /mnt/testfs2")
machine.succeed("mount /dev/stratis/testpool/testfs1 /mnt/testfs1")
machine.succeed("echo test0 > /mnt/testfs1/test0")
machine.succeed("echo test1 > /mnt/testfs1/test1")
machine.succeed("stratis filesystem snapshot testpool testfs1 testfs2")
machine.succeed("echo test2 > /mnt/testfs1/test1")
machine.succeed("mount /dev/stratis/testpool/testfs2 /mnt/testfs2")
assert "test0" in machine.succeed("cat /mnt/testfs1/test0")
assert "test0" in machine.succeed("cat /mnt/testfs2/test0")
···
machine.succeed("stratis filesystem rename testpool testfs0 testfs1")
# test snapshot
machine.succeed("mkdir -p /mnt/testfs1 /mnt/testfs2")
+
machine.wait_for_file("/dev/stratis/testpool/testfs1")
machine.succeed("mount /dev/stratis/testpool/testfs1 /mnt/testfs1")
machine.succeed("echo test0 > /mnt/testfs1/test0")
machine.succeed("echo test1 > /mnt/testfs1/test1")
machine.succeed("stratis filesystem snapshot testpool testfs1 testfs2")
machine.succeed("echo test2 > /mnt/testfs1/test1")
+
machine.wait_for_file("/dev/stratis/testpool/testfs2")
machine.succeed("mount /dev/stratis/testpool/testfs2 /mnt/testfs2")
assert "test0" in machine.succeed("cat /mnt/testfs1/test0")
assert "test0" in machine.succeed("cat /mnt/testfs2/test0")