def test_device_exists(self, exists):
exists.return_value = True
vol = gce_ephemeral.GceEphemeralVolume(name=device_name)
vol.ensure()
assert vol.device == '/dev/disk/by-id/%s' % device_name
def test_name_is_none(self, exists):
vol = gce_ephemeral.GceEphemeralVolume()
self.assertRaises(AssertionError, vol.ensure)
def test_device_exists(self, exists):
exists.return_value = False
vol = gce_ephemeral.GceEphemeralVolume(name=device_name)
self.assertRaises(storage2.StorageError, vol.ensure)
assert vol.device is None
