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 TestGetClusterFsid(object):
  36
  37     def test_fsid_is_passed_in(self, factory):
  38         args = factory(cluster_fsid='aaaa-1111')
  39         prepare_obj = lvm.prepare.Prepare([])
  40         prepare_obj.args = args
  41         assert prepare_obj.get_cluster_fsid() == 'aaaa-1111'
  42
  43     def test_fsid_is_read_from_ceph_conf(self, factory, conf_ceph_stub):
  44         conf_ceph_stub('[global]\nfsid = bbbb-2222')
  45         prepare_obj = lvm.prepare.Prepare([])
  46         prepare_obj.args = factory(cluster_fsid=None)
  47         assert prepare_obj.get_cluster_fsid() == 'bbbb-2222'
  48
  49
  50 class TestPrepare(object):
  51
  52     def test_main_spits_help_with_no_arguments(self, capsys):
  53         lvm.prepare.Prepare([]).main()
  54         stdout, stderr = capsys.readouterr()
  55         assert 'Prepare an OSD by assigning an ID and FSID' in stdout
  56
  57     def test_main_shows_full_help(self, capsys):
  58         with pytest.raises(SystemExit):
  59             lvm.prepare.Prepare(argv=['--help']).main()
  60         stdout, stderr = capsys.readouterr()
  61         assert 'Use the filestore objectstore' in stdout
  62         assert 'Use the bluestore objectstore' in stdout
  63         assert 'A physical device or logical' in stdout
  64
  65     def test_excludes_filestore_bluestore_flags(self, capsys, device_info):
  66         device_info()
  67         with pytest.raises(SystemExit):
  68             lvm.prepare.Prepare(argv=['--data', '/dev/sdfoo', '--filestore', '--bluestore']).main()
  69         stdout, stderr = capsys.readouterr()
  70         expected = 'Cannot use --filestore (filestore) with --bluestore (bluestore)'
  71         assert expected in stdout
  72
  73     def test_excludes_other_filestore_bluestore_flags(self, capsys, device_info):
  74         device_info()
  75         with pytest.raises(SystemExit):
  76             lvm.prepare.Prepare(argv=[
  77                 '--bluestore', '--data', '/dev/sdfoo',
  78                 '--journal', '/dev/sf14',
  79             ]).main()
  80         stdout, stderr = capsys.readouterr()
  81         expected = 'Cannot use --bluestore (bluestore) with --journal (filestore)'
  82         assert expected in stdout
  83
  84     def test_excludes_block_and_journal_flags(self, capsys, device_info):
  85         device_info()
  86         with pytest.raises(SystemExit):
  87             lvm.prepare.Prepare(argv=[
  88                 '--bluestore', '--data', '/dev/sdfoo', '--block.db', 'vg/ceph1',
  89                 '--journal', '/dev/sf14',
  90             ]).main()
  91         stdout, stderr = capsys.readouterr()
  92         expected = 'Cannot use --block.db (bluestore) with --journal (filestore)'
  93         assert expected in stdout
  94
  95     def test_journal_is_required_with_filestore(self, is_root, monkeypatch, device_info):
  96         monkeypatch.setattr("os.path.exists", lambda path: True)
  97         device_info()
  98         with pytest.raises(SystemExit) as error:
  99             lvm.prepare.Prepare(argv=['--filestore', '--data', '/dev/sdfoo']).main()
 100         expected = '--journal is required when using --filestore'
 101         assert expected in str(error)
 102
 103
 104 class TestGetJournalLV(object):
 105
 106     @pytest.mark.parametrize('arg', ['', '///', None, '/dev/sda1'])
 107     def test_no_journal_on_invalid_path(self, monkeypatch, arg):
 108         monkeypatch.setattr(lvm.prepare.api, 'get_lv', lambda **kw: False)
 109         prepare = lvm.prepare.Prepare([])
 110         assert prepare.get_lv(arg) is None
 111
 112     def test_no_journal_lv_found(self, monkeypatch):
 113         # patch it with 0 so we know we are getting to get_lv
 114         monkeypatch.setattr(lvm.prepare.api, 'get_lv', lambda **kw: 0)
 115         prepare = lvm.prepare.Prepare([])
 116         assert prepare.get_lv('vg/lv') == 0
 117
 118
 119 class TestActivate(object):
 120
 121     def test_main_spits_help_with_no_arguments(self, capsys):
 122         lvm.activate.Activate([]).main()
 123         stdout, stderr = capsys.readouterr()
 124         assert 'Activate OSDs by discovering them with' in stdout
 125
 126     def test_main_shows_full_help(self, capsys):
 127         with pytest.raises(SystemExit):
 128             lvm.activate.Activate(argv=['--help']).main()
 129         stdout, stderr = capsys.readouterr()
 130         assert 'optional arguments' in stdout
 131         assert 'positional arguments' in stdout