python-novaclient/tests/test_utils.py
zhiyanliu 3e190c5e49 Ensure list output function can support non-sorting printing
Ensure list printing function in utils can handle non-sorting
calls. Allow result list can be formatted and outputted without any
sorting field, keep natural order to the list printing. Adding necessary
checking to avoid prettytable (0.6.1 for me) exception: "Invalid field
name: None!".

Fix bug: #1099732

Change-Id: Ied869d987e608fff8b8b5f5a65d21e02f0cebeaa
Signed-off-by: zhiyanliu <lzy.dev@gmail.com>
2013-01-17 11:51:46 +08:00

166 lines
5.0 KiB
Python

import StringIO
import sys
import mock
from novaclient import exceptions
from novaclient import utils
from novaclient import base
from tests import utils as test_utils
UUID = '8e8ec658-c7b0-4243-bdf8-6f7f2952c0d0'
class FakeResource(object):
NAME_ATTR = 'name'
def __init__(self, _id, properties):
self.id = _id
try:
self.name = properties['name']
except KeyError:
pass
class FakeManager(base.ManagerWithFind):
resource_class = FakeResource
resources = [
FakeResource('1234', {'name': 'entity_one'}),
FakeResource(UUID, {'name': 'entity_two'}),
FakeResource('5678', {'name': '9876'})
]
def get(self, resource_id):
for resource in self.resources:
if resource.id == str(resource_id):
return resource
raise exceptions.NotFound(resource_id)
def list(self):
return self.resources
class FakeDisplayResource(object):
NAME_ATTR = 'display_name'
def __init__(self, _id, properties):
self.id = _id
try:
self.display_name = properties['display_name']
except KeyError:
pass
class FakeDisplayManager(FakeManager):
resource_class = FakeDisplayResource
resources = [
FakeDisplayResource('4242', {'display_name': 'entity_three'}),
]
class FindResourceTestCase(test_utils.TestCase):
def setUp(self):
super(FindResourceTestCase, self).setUp()
self.manager = FakeManager(None)
def test_find_none(self):
"""Test a few non-valid inputs"""
self.assertRaises(exceptions.CommandError,
utils.find_resource,
self.manager,
'asdf')
self.assertRaises(exceptions.CommandError,
utils.find_resource,
self.manager,
None)
self.assertRaises(exceptions.CommandError,
utils.find_resource,
self.manager,
{})
def test_find_by_integer_id(self):
output = utils.find_resource(self.manager, 1234)
self.assertEqual(output, self.manager.get('1234'))
def test_find_by_str_id(self):
output = utils.find_resource(self.manager, '1234')
self.assertEqual(output, self.manager.get('1234'))
def test_find_by_uuid(self):
output = utils.find_resource(self.manager, UUID)
self.assertEqual(output, self.manager.get(UUID))
def test_find_by_str_name(self):
output = utils.find_resource(self.manager, 'entity_one')
self.assertEqual(output, self.manager.get('1234'))
def test_find_by_str_displayname(self):
display_manager = FakeDisplayManager(None)
output = utils.find_resource(display_manager, 'entity_three')
self.assertEqual(output, display_manager.get('4242'))
class _FakeResult(object):
def __init__(self, name, value):
self.name = name
self.value = value
class PrintResultTestCase(test_utils.TestCase):
@mock.patch('sys.stdout', StringIO.StringIO())
def test_print_list_sort_by_str(self):
objs = [_FakeResult("k1", 1),
_FakeResult("k3", 2),
_FakeResult("k2", 3)]
utils.print_list(objs, ["Name", "Value"], sortby_index=0)
self.assertEqual(sys.stdout.getvalue(),
'+------+-------+\n'
'| Name | Value |\n'
'+------+-------+\n'
'| k1 | 1 |\n'
'| k2 | 3 |\n'
'| k3 | 2 |\n'
'+------+-------+\n')
@mock.patch('sys.stdout', StringIO.StringIO())
def test_print_list_sort_by_integer(self):
objs = [_FakeResult("k1", 1),
_FakeResult("k3", 2),
_FakeResult("k2", 3)]
utils.print_list(objs, ["Name", "Value"], sortby_index=1)
self.assertEqual(sys.stdout.getvalue(),
'+------+-------+\n'
'| Name | Value |\n'
'+------+-------+\n'
'| k1 | 1 |\n'
'| k3 | 2 |\n'
'| k2 | 3 |\n'
'+------+-------+\n')
# without sorting
@mock.patch('sys.stdout', StringIO.StringIO())
def test_print_list_sort_by_none(self):
objs = [_FakeResult("k1", 1),
_FakeResult("k3", 3),
_FakeResult("k2", 2)]
utils.print_list(objs, ["Name", "Value"], sortby_index=None)
self.assertEqual(sys.stdout.getvalue(),
'+------+-------+\n'
'| Name | Value |\n'
'+------+-------+\n'
'| k1 | 1 |\n'
'| k3 | 3 |\n'
'| k2 | 2 |\n'
'+------+-------+\n')