def test_recursive_delete(self):
root = nvme.Root()
root.clear_existing()
s = nvme.Subsystem(nqn='testnqn', mode='create')
n1 = nvme.Namespace(s, mode='create')
n2 = nvme.Namespace(s, mode='create')
s.delete()
self.assertEqual(len(list(root.subsystems)), 0)
def test_namespace_attrs(self):
root = nvme.Root()
root.clear_existing()
s = nvme.Subsystem(nqn='testnqn', mode='create')
n = nvme.Namespace(s, mode='create')
self.assertFalse(n.get_enable())
self.assertTrue('device' in n.attr_groups)
self.assertTrue('path' in n.list_attrs('device'))
# no device set yet, should fail
self.assertRaises(nvme.CFSError, n.set_enable, 1)
# now set a path and enable
n.set_attr('device', 'path', '/dev/ram0')
n.set_enable(1)
self.assertTrue(n.get_enable())
# test double enable
n.set_enable(1)
# test that we can't write to attrs while enabled
self.assertRaises(nvme.CFSError, n.set_attr, 'device', 'path',
'/dev/ram1')
self.assertRaises(nvme.CFSError, n.set_attr, 'device', 'nguid',
'15f7767b-50e7-4441-949c-75b99153dea7')
# disable: once and twice
n.set_enable(0)
n.set_enable(0)
# enable again, and remove while enabled
n.set_enable(1)
n.delete()
def test_namespace(self):
root = nvme.Root()
root.clear_existing()
s = nvme.Subsystem(nqn='testnqn', mode='create')
for n in s.namespaces:
self.assertTrue(False, 'Found Namespace in new Subsystem')
# create mode
n1 = nvme.Namespace(s, nsid=3, mode='create')
self.assertIsNotNone(n1)
self.assertEqual(len(list(s.namespaces)), 1)
# any mode, should create
n2 = nvme.Namespace(s, nsid=2, mode='any')
self.assertIsNotNone(n2)
self.assertEqual(len(list(s.namespaces)), 2)
# create without nsid, should pick lowest available
n3 = nvme.Namespace(s, mode='create')
self.assertIsNotNone(n3)
self.assertEqual(n3.nsid, 1)
self.assertEqual(len(list(s.namespaces)), 3)
n4 = nvme.Namespace(s, mode='create')
self.assertIsNotNone(n4)
self.assertEqual(n4.nsid, 4)
self.assertEqual(len(list(s.namespaces)), 4)
# duplicate
self.assertRaises(nvme.CFSError, nvme.Namespace, 1, mode='create')
self.assertEqual(len(list(s.namespaces)), 4)
# lookup using any, should not create
n = nvme.Namespace(s, nsid=3, mode='any')
self.assertEqual(n1, n)
self.assertEqual(len(list(s.namespaces)), 4)
# lookup only
n = nvme.Namespace(s, nsid=2, mode='lookup')
self.assertEqual(n2, n)
self.assertEqual(len(list(s.namespaces)), 4)
# lookup without nsid
self.assertRaises(nvme.CFSError, nvme.Namespace, None, mode='lookup')
# and delete them all
for n in s.namespaces:
n.delete()
self.assertEqual(len(list(s.namespaces)), 0)
def test_save_restore(self):
root = nvme.Root()
root.clear_existing()
h = nvme.Host(nqn='hostnqn', mode='create')
s = nvme.Subsystem(nqn='testnqn', mode='create')
s.add_allowed_host(nqn='hostnqn')
s2 = nvme.Subsystem(nqn='testnqn2', mode='create')
s2.set_attr('attr', 'allow_any_host', 1)
n = nvme.Namespace(s, nsid=42, mode='create')
n.set_attr('device', 'path', '/dev/ram0')
n.set_enable(1)
nguid = n.get_attr('device', 'nguid')
p = nvme.Port(portid=66, mode='create')
p.set_attr('addr', 'trtype', 'loop')
p.set_attr('addr', 'adrfam', 'ipv4')
p.set_attr('addr', 'traddr', '192.168.0.1')
p.set_attr('addr', 'treq', 'not required')
p.set_attr('addr', 'trsvcid', '1023')
p.add_subsystem('testnqn')
# save, clear, and restore
root.save_to_file('test.json')
root.clear_existing()
root.restore_from_file('test.json')
# additional restores should fai
self.assertRaises(nvme.CFSError, root.restore_from_file, 'test.json',
False)
# ... unless forced!
root.restore_from_file('test.json', True)
# rebuild our view of the world
h = nvme.Host(nqn='hostnqn', mode='lookup')
s = nvme.Subsystem(nqn='testnqn', mode='lookup')
s2 = nvme.Subsystem(nqn='testnqn2', mode='lookup')
n = nvme.Namespace(s, nsid=42, mode='lookup')
p = nvme.Port(portid=66, mode='lookup')
self.assertEqual(s.get_attr('attr', 'allow_any_host'), "0")
self.assertEqual(s2.get_attr('attr', 'allow_any_host'), "1")
self.assertIn('hostnqn', s.allowed_hosts)
# and check everything is still the same
self.assertTrue(n.get_enable())
self.assertEqual(n.get_attr('device', 'path'), '/dev/ram0')
self.assertEqual(n.get_attr('device', 'nguid'), nguid)
self.assertEqual(p.get_attr('addr', 'trtype'), 'loop')
self.assertEqual(p.get_attr('addr', 'adrfam'), 'ipv4')
self.assertEqual(p.get_attr('addr', 'traddr'), '192.168.0.1')
self.assertEqual(p.get_attr('addr', 'treq'), 'not required')
self.assertEqual(p.get_attr('addr', 'trsvcid'), '1023')
self.assertIn('testnqn', p.subsystems)
self.assertNotIn('testtnqn2', p.subsystems)