ceph/src/ceph-volume/ceph_volume/tests/devices/lvm/test_prepare.py

   1 import pytest
   2 from ceph_volume.devices import lvm
   3
   4
   5 class TestLVM(object):
   6
   7     def test_main_spits_help_with_no_arguments(self, capsys):
   8         lvm.main.LVM([]).main()
   9         stdout, stderr = capsys.readouterr()
  10         assert 'Use LVM and LVM-based technologies like dmcache to deploy' in stdout
  11
  12     def test_main_shows_activate_subcommands(self, capsys):
  13         lvm.main.LVM([]).main()
  14         stdout, stderr = capsys.readouterr()
  15         assert 'activate ' in stdout
  16         assert 'Discover and mount' in stdout
  17
  18     def test_main_shows_prepare_subcommands(self, capsys):
  19         lvm.main.LVM([]).main()
  20         stdout, stderr = capsys.readouterr()
  21         assert 'prepare ' in stdout
  22         assert 'Format an LVM device' in stdout
  23
  24
  25 class TestPrepareDevice(object):
  26
  27     def test_cannot_use_device(self):
  28         with pytest.raises(RuntimeError) as error:
  29             lvm.prepare.Prepare([]).prepare_device(
  30                     '/dev/var/foo', 'data', 'asdf', '0')
  31         assert 'Cannot use device (/dev/var/foo)' in str(error)
  32         assert 'A vg/lv path or an existing device is needed' in str(error)
  33
  34
  35 class TestPrepare(object):
  36
  37     def test_main_spits_help_with_no_arguments(self, capsys):
  38         lvm.prepare.Prepare([]).main()
  39         stdout, stderr = capsys.readouterr()
  40         assert 'Prepare an OSD by assigning an ID and FSID' in stdout
  41
  42     def test_main_shows_full_help(self, capsys):
  43         with pytest.raises(SystemExit):
  44             lvm.prepare.Prepare(argv=['--help']).main()
  45         stdout, stderr = capsys.readouterr()
  46         assert 'Use the filestore objectstore' in stdout
  47         assert 'Use the bluestore objectstore' in stdout
  48         assert 'A physical device or logical' in stdout
  49
  50     def test_excludes_filestore_bluestore_flags(self, capsys):
  51         with pytest.raises(SystemExit):
  52             lvm.prepare.Prepare(argv=['--data', '/dev/sdfoo', '--filestore', '--bluestore']).main()
  53         stdout, stderr = capsys.readouterr()
  54         expected = 'Cannot use --filestore (filestore) with --bluestore (bluestore)'
  55         assert expected in stdout
  56
  57     def test_excludes_other_filestore_bluestore_flags(self, capsys):
  58         with pytest.raises(SystemExit):
  59             lvm.prepare.Prepare(argv=[
  60                 '--bluestore', '--data', '/dev/sdfoo',
  61                 '--journal', '/dev/sf14',
  62             ]).main()
  63         stdout, stderr = capsys.readouterr()
  64         expected = 'Cannot use --bluestore (bluestore) with --journal (filestore)'
  65         assert expected in stdout
  66
  67     def test_excludes_block_and_journal_flags(self, capsys):
  68         with pytest.raises(SystemExit):
  69             lvm.prepare.Prepare(argv=[
  70                 '--bluestore', '--data', '/dev/sdfoo', '--block.db', 'vg/ceph1',
  71                 '--journal', '/dev/sf14',
  72             ]).main()
  73         stdout, stderr = capsys.readouterr()
  74         expected = 'Cannot use --block.db (bluestore) with --journal (filestore)'
  75         assert expected in stdout
  76
  77
  78 class TestGetJournalLV(object):
  79
  80     @pytest.mark.parametrize('arg', ['', '///', None, '/dev/sda1'])
  81     def test_no_journal_on_invalid_path(self, monkeypatch, arg):
  82         monkeypatch.setattr(lvm.prepare.api, 'get_lv', lambda **kw: False)
  83         prepare = lvm.prepare.Prepare([])
  84         assert prepare.get_lv(arg) is None
  85
  86     def test_no_journal_lv_found(self, monkeypatch):
  87         # patch it with 0 so we know we are getting to get_lv
  88         monkeypatch.setattr(lvm.prepare.api, 'get_lv', lambda **kw: 0)
  89         prepare = lvm.prepare.Prepare([])
  90         assert prepare.get_lv('vg/lv') == 0
  91
  92
  93 class TestActivate(object):
  94
  95     def test_main_spits_help_with_no_arguments(self, capsys):
  96         lvm.activate.Activate([]).main()
  97         stdout, stderr = capsys.readouterr()
  98         assert 'Activate OSDs by discovering them with' in stdout
  99
 100     def test_main_shows_full_help(self, capsys):
 101         with pytest.raises(SystemExit):
 102             lvm.activate.Activate(argv=['--help']).main()
 103         stdout, stderr = capsys.readouterr()
 104         assert 'optional arguments' in stdout
 105         assert 'positional arguments' in stdout