def test_get_free_device_path(self, p_ex_cmd, p_get_username):
p_get_username.return_value = 'root'
instance = r.InstanceResource({'instance_id': '123454321',
'node_group': {}})
stdout = """major minor #blocks name
8 0 488386584 vda
8 1 102400 vda1"""
p_ex_cmd.return_value = (0, stdout)
self.assertEqual(volumes._get_free_device_path(instance), '/dev/vdb')
stdout = """major minor #blocks name
8 0 488386584 xvda
8 1 102400 xvda1"""
p_ex_cmd.return_value = (0, stdout)
self.assertEqual(volumes._get_free_device_path(instance), '/dev/xvdb')
stdout = "major minor #blocks name\n"
for idx in range(0, 26):
line = " 8 0 488386584 vd" + chr(ord('a') + idx) + '\n'
stdout += line
p_ex_cmd.return_value = (0, stdout)
self.assertRaises(RuntimeError, volumes._get_free_device_path,
instance)
p_ex_cmd.side_effect = ex.RemoteCommandException('cmd')
self.assertRaises(ex.RemoteCommandException,
volumes._get_free_device_path, instance)
def test_get_free_device_path(self, p_ex_cmd, p_get_username):
p_get_username.return_value = 'root'
instance = r.InstanceResource({
'instance_id': '123454321',
'node_group': {}
})
stdout = """major minor #blocks name
8 0 488386584 vda
8 1 102400 vda1"""
p_ex_cmd.return_value = (0, stdout)
self.assertEqual(volumes._get_free_device_path(instance), '/dev/vdb')
stdout = """major minor #blocks name
8 0 488386584 xvda
8 1 102400 xvda1"""
p_ex_cmd.return_value = (0, stdout)
self.assertEqual(volumes._get_free_device_path(instance), '/dev/xvdb')
stdout = "major minor #blocks name\n"
for idx in range(0, 26):
line = " 8 0 488386584 vd" + chr(ord('a') + idx) + '\n'
stdout += line
p_ex_cmd.return_value = (0, stdout)
self.assertRaises(RuntimeError, volumes._get_free_device_path,
instance)
p_ex_cmd.side_effect = ex.RemoteCommandException('cmd')
self.assertRaises(ex.RemoteCommandException,
volumes._get_free_device_path, instance)
def test_get_free_device_path(self, p_ex_cmd):
instance = r.InstanceResource({'instance_id': '123454321'})
p_ex_cmd.return_value = (1, None)
self.assertRaises(RuntimeError, volumes._get_free_device_path,
instance)
stdout = """major minor #blocks name
8 0 488386584 vda
8 1 102400 vda1"""
p_ex_cmd.return_value = (0, stdout)
self.assertEqual(volumes._get_free_device_path(instance), '/dev/vdb')
stdout = "major minor #blocks name\n"
for idx in range(0, 26):
line = " 8 0 488386584 vd" + chr(ord('a') + idx) + '\n'
stdout += line
p_ex_cmd.return_value = (0, stdout)
self.assertRaises(RuntimeError, volumes._get_free_device_path,
instance)