swift/test/unit/common/test_constraints.py
Alistair Coles ba8f1b1c37 Fix intermittent unit test failure
test_check_delete_headers_removes_delete_after was
failing intermittently due to rounding of float time
values.

Change-Id: Ia126ad6988f387bbd2d1f5ddff0a56d457a1fc9b
Closes-Bug: #1743804
2018-01-17 15:27:20 +00:00

632 lines
28 KiB
Python

# Copyright (c) 2010-2012 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import mock
import tempfile
import time
from six.moves import range
from test.unit import mock_check_drive
from swift.common.swob import Request, HTTPException
from swift.common.http import HTTP_REQUEST_ENTITY_TOO_LARGE, \
HTTP_BAD_REQUEST, HTTP_LENGTH_REQUIRED, HTTP_NOT_IMPLEMENTED
from swift.common import constraints, utils
from swift.common.constraints import MAX_OBJECT_NAME_LENGTH
class TestConstraints(unittest.TestCase):
def test_check_metadata_empty(self):
headers = {}
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
def test_check_metadata_good(self):
headers = {'X-Object-Meta-Name': 'Value'}
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
def test_check_metadata_empty_name(self):
headers = {'X-Object-Meta-': 'Value'}
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'object')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Metadata name cannot be empty', resp.body)
def test_check_metadata_non_utf8(self):
headers = {'X-Account-Meta-Foo': b'\xff'}
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'account')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Metadata must be valid UTF-8', resp.body)
headers = {b'X-Container-Meta-\xff': 'foo'}
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'container')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Metadata must be valid UTF-8', resp.body)
# Object's OK; its metadata isn't serialized as JSON
headers = {'X-Object-Meta-Foo': b'\xff'}
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
def test_check_metadata_name_length(self):
name = 'a' * constraints.MAX_META_NAME_LENGTH
headers = {'X-Object-Meta-%s' % name: 'v'}
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
name = 'a' * (constraints.MAX_META_NAME_LENGTH + 1)
headers = {'X-Object-Meta-%s' % name: 'v'}
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'object')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn(
('X-Object-Meta-%s' % name).lower(), resp.body.lower())
self.assertIn('Metadata name too long', resp.body)
def test_check_metadata_value_length(self):
value = 'a' * constraints.MAX_META_VALUE_LENGTH
headers = {'X-Object-Meta-Name': value}
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
value = 'a' * (constraints.MAX_META_VALUE_LENGTH + 1)
headers = {'X-Object-Meta-Name': value}
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'object')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('x-object-meta-name', resp.body.lower())
self.assertIn(
str(constraints.MAX_META_VALUE_LENGTH), resp.body)
self.assertIn('Metadata value longer than 256', resp.body)
def test_check_metadata_count(self):
headers = {}
for x in range(constraints.MAX_META_COUNT):
headers['X-Object-Meta-%d' % x] = 'v'
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
headers['X-Object-Meta-Too-Many'] = 'v'
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'object')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Too many metadata items', resp.body)
def test_check_metadata_size(self):
headers = {}
size = 0
chunk = constraints.MAX_META_NAME_LENGTH + \
constraints.MAX_META_VALUE_LENGTH
x = 0
while size + chunk < constraints.MAX_META_OVERALL_SIZE:
headers['X-Object-Meta-%04d%s' %
(x, 'a' * (constraints.MAX_META_NAME_LENGTH - 4))] = \
'v' * constraints.MAX_META_VALUE_LENGTH
size += chunk
x += 1
self.assertIsNone(constraints.check_metadata(Request.blank(
'/', headers=headers), 'object'))
# add two more headers in case adding just one falls exactly on the
# limit (eg one header adds 1024 and the limit is 2048)
headers['X-Object-Meta-%04d%s' %
(x, 'a' * (constraints.MAX_META_NAME_LENGTH - 4))] = \
'v' * constraints.MAX_META_VALUE_LENGTH
headers['X-Object-Meta-%04d%s' %
(x + 1, 'a' * (constraints.MAX_META_NAME_LENGTH - 4))] = \
'v' * constraints.MAX_META_VALUE_LENGTH
resp = constraints.check_metadata(Request.blank(
'/', headers=headers), 'object')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Total metadata too large', resp.body)
def test_check_object_creation_content_length(self):
headers = {'Content-Length': str(constraints.MAX_FILE_SIZE),
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
self.assertIsNone(constraints.check_object_creation(Request.blank(
'/', headers=headers), 'object_name'))
headers = {'Content-Length': str(constraints.MAX_FILE_SIZE + 1),
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_REQUEST_ENTITY_TOO_LARGE)
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
self.assertIsNone(constraints.check_object_creation(Request.blank(
'/', headers=headers), 'object_name'))
headers = {'Transfer-Encoding': 'gzip',
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(Request.blank(
'/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Invalid Transfer-Encoding header value', resp.body)
headers = {'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_LENGTH_REQUIRED)
headers = {'Content-Length': 'abc',
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(Request.blank(
'/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Invalid Content-Length header value', resp.body)
headers = {'Transfer-Encoding': 'gzip,chunked',
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(Request.blank(
'/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_NOT_IMPLEMENTED)
def test_check_object_creation_name_length(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
name = 'o' * constraints.MAX_OBJECT_NAME_LENGTH
self.assertIsNone(constraints.check_object_creation(Request.blank(
'/', headers=headers), name))
name = 'o' * (MAX_OBJECT_NAME_LENGTH + 1)
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), name)
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Object name length of %d longer than %d' %
(MAX_OBJECT_NAME_LENGTH + 1, MAX_OBJECT_NAME_LENGTH),
resp.body)
def test_check_object_creation_content_type(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain',
'X-Timestamp': str(time.time())}
self.assertIsNone(constraints.check_object_creation(Request.blank(
'/', headers=headers), 'object_name'))
headers = {'Transfer-Encoding': 'chunked',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('No content type', resp.body)
def test_check_object_creation_bad_content_type(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': '\xff\xff',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Content-Type', resp.body)
def test_check_object_creation_bad_delete_headers(self):
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain',
'X-Delete-After': 'abc',
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('Non-integer X-Delete-After', resp.body)
t = str(int(time.time() - 60))
headers = {'Transfer-Encoding': 'chunked',
'Content-Type': 'text/plain',
'X-Delete-At': t,
'X-Timestamp': str(time.time())}
resp = constraints.check_object_creation(
Request.blank('/', headers=headers), 'object_name')
self.assertEqual(resp.status_int, HTTP_BAD_REQUEST)
self.assertIn('X-Delete-At in past', resp.body)
def test_check_delete_headers(self):
# x-delete-at value should be relative to the request timestamp rather
# than time.time() so separate the two to ensure the checks are robust
ts = utils.Timestamp(time.time() + 100)
# X-Delete-After
headers = {'X-Delete-After': '600',
'X-Timestamp': ts.internal}
req = constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertIsInstance(req, Request)
self.assertIn('x-delete-at', req.headers)
self.assertNotIn('x-delete-after', req.headers)
expected_delete_at = str(int(ts) + 600)
self.assertEqual(req.headers.get('X-Delete-At'), expected_delete_at)
headers = {'X-Delete-After': 'abc',
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('Non-integer X-Delete-After', cm.exception.body)
headers = {'X-Delete-After': '60.1',
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('Non-integer X-Delete-After', cm.exception.body)
headers = {'X-Delete-After': '-1',
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('X-Delete-After in past', cm.exception.body)
headers = {'X-Delete-After': '0',
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('X-Delete-After in past', cm.exception.body)
# x-delete-after = 0 disallowed when it results in x-delete-at equal to
# the timestamp
headers = {'X-Delete-After': '0',
'X-Timestamp': utils.Timestamp(int(ts)).internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('X-Delete-After in past', cm.exception.body)
# X-Delete-At
delete_at = str(int(ts) + 100)
headers = {'X-Delete-At': delete_at,
'X-Timestamp': ts.internal}
req = constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertIsInstance(req, Request)
self.assertIn('x-delete-at', req.headers)
self.assertEqual(req.headers.get('X-Delete-At'), delete_at)
headers = {'X-Delete-At': 'abc',
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('Non-integer X-Delete-At', cm.exception.body)
delete_at = str(int(ts) + 100) + '.1'
headers = {'X-Delete-At': delete_at,
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('Non-integer X-Delete-At', cm.exception.body)
delete_at = str(int(ts) - 1)
headers = {'X-Delete-At': delete_at,
'X-Timestamp': ts.internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('X-Delete-At in past', cm.exception.body)
# x-delete-at disallowed when exactly equal to timestamp
delete_at = str(int(ts))
headers = {'X-Delete-At': delete_at,
'X-Timestamp': utils.Timestamp(int(ts)).internal}
with self.assertRaises(HTTPException) as cm:
constraints.check_delete_headers(
Request.blank('/', headers=headers))
self.assertEqual(cm.exception.status_int, HTTP_BAD_REQUEST)
self.assertIn('X-Delete-At in past', cm.exception.body)
def test_check_delete_headers_removes_delete_after(self):
ts = utils.Timestamp.now()
headers = {'Content-Length': '0',
'Content-Type': 'text/plain',
'X-Delete-After': '42',
'X-Delete-At': str(int(ts) + 40),
'X-Timestamp': ts.internal}
req = Request.blank('/', headers=headers)
constraints.check_delete_headers(req)
self.assertNotIn('X-Delete-After', req.headers)
self.assertEqual(req.headers['X-Delete-At'], str(int(ts) + 42))
def test_check_delete_headers_sets_delete_at(self):
t = time.time()
expected = str(int(t) + 1000)
# check delete-at is passed through
headers = {'Content-Length': '0',
'Content-Type': 'text/plain',
'X-Delete-At': expected,
'X-Timestamp': str(t)}
req = Request.blank('/', headers=headers)
constraints.check_delete_headers(req)
self.assertIn('X-Delete-At', req.headers)
self.assertEqual(req.headers['X-Delete-At'], expected)
# check delete-after is converted to delete-at
headers = {'Content-Length': '0',
'Content-Type': 'text/plain',
'X-Delete-After': '42',
'X-Timestamp': str(t)}
req = Request.blank('/', headers=headers)
constraints.check_delete_headers(req)
self.assertIn('X-Delete-At', req.headers)
expected = str(int(t) + 42)
self.assertEqual(req.headers['X-Delete-At'], expected)
# check delete-after takes precedence over delete-at
headers = {'Content-Length': '0',
'Content-Type': 'text/plain',
'X-Delete-After': '42',
'X-Delete-At': str(int(t) + 40),
'X-Timestamp': str(t)}
req = Request.blank('/', headers=headers)
constraints.check_delete_headers(req)
self.assertIn('X-Delete-At', req.headers)
self.assertEqual(req.headers['X-Delete-At'], expected)
headers = {'Content-Length': '0',
'Content-Type': 'text/plain',
'X-Delete-After': '42',
'X-Delete-At': str(int(t) + 44),
'X-Timestamp': str(t)}
req = Request.blank('/', headers=headers)
constraints.check_delete_headers(req)
self.assertIn('X-Delete-At', req.headers)
self.assertEqual(req.headers['X-Delete-At'], expected)
def test_check_drive_invalid_path(self):
root = '/srv/'
with mock_check_drive() as mocks:
self.assertIsNone(constraints.check_dir(root, 'foo?bar'))
self.assertIsNone(constraints.check_mount(root, 'foo bar'))
self.assertIsNone(constraints.check_drive(root, 'foo/bar', True))
self.assertIsNone(constraints.check_drive(root, 'foo%bar', False))
self.assertEqual([], mocks['isdir'].call_args_list)
self.assertEqual([], mocks['ismount'].call_args_list)
def test_check_drive_ismount(self):
root = '/srv'
path = 'sdb1'
with mock_check_drive(ismount=True) as mocks:
self.assertIsNone(constraints.check_dir(root, path))
self.assertIsNone(constraints.check_drive(root, path, False))
self.assertEqual([mock.call('/srv/sdb1'), mock.call('/srv/sdb1')],
mocks['isdir'].call_args_list)
self.assertEqual([], mocks['ismount'].call_args_list)
with mock_check_drive(ismount=True) as mocks:
self.assertEqual('/srv/sdb1', constraints.check_mount(root, path))
self.assertEqual('/srv/sdb1', constraints.check_drive(
root, path, True))
self.assertEqual([], mocks['isdir'].call_args_list)
self.assertEqual([mock.call('/srv/sdb1'), mock.call('/srv/sdb1')],
mocks['ismount'].call_args_list)
def test_check_drive_isdir(self):
root = '/srv'
path = 'sdb2'
with mock_check_drive(isdir=True) as mocks:
self.assertEqual('/srv/sdb2', constraints.check_dir(root, path))
self.assertEqual('/srv/sdb2', constraints.check_drive(
root, path, False))
self.assertEqual([mock.call('/srv/sdb2'), mock.call('/srv/sdb2')],
mocks['isdir'].call_args_list)
self.assertEqual([], mocks['ismount'].call_args_list)
with mock_check_drive(isdir=True) as mocks:
self.assertIsNone(constraints.check_mount(root, path))
self.assertIsNone(constraints.check_drive(root, path, True))
self.assertEqual([], mocks['isdir'].call_args_list)
self.assertEqual([mock.call('/srv/sdb2'), mock.call('/srv/sdb2')],
mocks['ismount'].call_args_list)
def test_check_float(self):
self.assertFalse(constraints.check_float(''))
self.assertTrue(constraints.check_float('0'))
def test_valid_timestamp(self):
self.assertRaises(HTTPException,
constraints.valid_timestamp,
Request.blank('/'))
self.assertRaises(HTTPException,
constraints.valid_timestamp,
Request.blank('/', headers={
'X-Timestamp': 'asdf'}))
timestamp = utils.Timestamp.now()
req = Request.blank('/', headers={'X-Timestamp': timestamp.internal})
self.assertEqual(timestamp, constraints.valid_timestamp(req))
req = Request.blank('/', headers={'X-Timestamp': timestamp.normal})
self.assertEqual(timestamp, constraints.valid_timestamp(req))
def test_check_utf8(self):
unicode_sample = u'\uc77c\uc601'
valid_utf8_str = unicode_sample.encode('utf-8')
invalid_utf8_str = unicode_sample.encode('utf-8')[::-1]
unicode_with_null = u'abc\u0000def'
utf8_with_null = unicode_with_null.encode('utf-8')
for false_argument in [None,
'',
invalid_utf8_str,
unicode_with_null,
utf8_with_null]:
self.assertFalse(constraints.check_utf8(false_argument))
for true_argument in ['this is ascii and utf-8, too',
unicode_sample,
valid_utf8_str]:
self.assertTrue(constraints.check_utf8(true_argument))
def test_check_utf8_non_canonical(self):
self.assertFalse(constraints.check_utf8('\xed\xa0\xbc\xed\xbc\xb8'))
self.assertFalse(constraints.check_utf8('\xed\xa0\xbd\xed\xb9\x88'))
def test_check_utf8_lone_surrogates(self):
self.assertFalse(constraints.check_utf8('\xed\xa0\xbc'))
self.assertFalse(constraints.check_utf8('\xed\xb9\x88'))
def test_validate_bad_meta(self):
req = Request.blank(
'/v/a/c/o',
headers={'x-object-meta-hello':
'ab' * constraints.MAX_HEADER_SIZE})
self.assertEqual(constraints.check_metadata(req, 'object').status_int,
HTTP_BAD_REQUEST)
self.assertIn('x-object-meta-hello', constraints.check_metadata(req,
'object').body.lower())
def test_validate_constraints(self):
c = constraints
self.assertGreater(c.MAX_META_OVERALL_SIZE, c.MAX_META_NAME_LENGTH)
self.assertGreater(c.MAX_META_OVERALL_SIZE, c.MAX_META_VALUE_LENGTH)
self.assertGreater(c.MAX_HEADER_SIZE, c.MAX_META_NAME_LENGTH)
self.assertGreater(c.MAX_HEADER_SIZE, c.MAX_META_VALUE_LENGTH)
def test_check_account_format(self):
req = Request.blank(
'/v/a/c/o',
headers={'X-Copy-From-Account': 'account/with/slashes'})
self.assertRaises(HTTPException,
constraints.check_account_format,
req, req.headers['X-Copy-From-Account'])
req = Request.blank(
'/v/a/c/o',
headers={'X-Copy-From-Account': ''})
self.assertRaises(HTTPException,
constraints.check_account_format,
req, req.headers['X-Copy-From-Account'])
def test_check_container_format(self):
invalid_versions_locations = (
'container/with/slashes',
'', # empty
)
for versions_location in invalid_versions_locations:
req = Request.blank(
'/v/a/c/o', headers={
'X-Versions-Location': versions_location})
with self.assertRaises(HTTPException) as cm:
constraints.check_container_format(
req, req.headers['X-Versions-Location'])
self.assertTrue(cm.exception.body.startswith(
'Container name cannot'))
def test_valid_api_version(self):
version = 'v1'
self.assertTrue(constraints.valid_api_version(version))
version = 'v1.0'
self.assertTrue(constraints.valid_api_version(version))
version = 'v2'
self.assertFalse(constraints.valid_api_version(version))
class TestConstraintsConfig(unittest.TestCase):
def test_default_constraints(self):
for key in constraints.DEFAULT_CONSTRAINTS:
# if there is local over-rides in swift.conf we just continue on
if key in constraints.OVERRIDE_CONSTRAINTS:
continue
# module level attrs (that aren't in OVERRIDE) should have the
# same value as the DEFAULT map
module_level_value = getattr(constraints, key.upper())
self.assertEqual(constraints.DEFAULT_CONSTRAINTS[key],
module_level_value)
def test_effective_constraints(self):
for key in constraints.DEFAULT_CONSTRAINTS:
# module level attrs should always mirror the same value as the
# EFFECTIVE map
module_level_value = getattr(constraints, key.upper())
self.assertEqual(constraints.EFFECTIVE_CONSTRAINTS[key],
module_level_value)
# if there are local over-rides in swift.conf those should be
# reflected in the EFFECTIVE, otherwise we expect the DEFAULTs
self.assertEqual(constraints.EFFECTIVE_CONSTRAINTS[key],
constraints.OVERRIDE_CONSTRAINTS.get(
key, constraints.DEFAULT_CONSTRAINTS[key]))
def test_override_constraints(self):
try:
with tempfile.NamedTemporaryFile() as f:
f.write('[swift-constraints]\n')
# set everything to 1
for key in constraints.DEFAULT_CONSTRAINTS:
f.write('%s = 1\n' % key)
f.flush()
with mock.patch.object(utils, 'SWIFT_CONF_FILE', f.name):
constraints.reload_constraints()
for key in constraints.DEFAULT_CONSTRAINTS:
# module level attrs should all be 1
module_level_value = getattr(constraints, key.upper())
self.assertEqual(module_level_value, 1)
# all keys should be in OVERRIDE
self.assertEqual(constraints.OVERRIDE_CONSTRAINTS[key],
module_level_value)
# module level attrs should always mirror the same value as
# the EFFECTIVE map
self.assertEqual(constraints.EFFECTIVE_CONSTRAINTS[key],
module_level_value)
finally:
constraints.reload_constraints()
def test_reload_reset(self):
try:
with tempfile.NamedTemporaryFile() as f:
f.write('[swift-constraints]\n')
# set everything to 1
for key in constraints.DEFAULT_CONSTRAINTS:
f.write('%s = 1\n' % key)
f.flush()
with mock.patch.object(utils, 'SWIFT_CONF_FILE', f.name):
constraints.reload_constraints()
self.assertTrue(constraints.SWIFT_CONSTRAINTS_LOADED)
self.assertEqual(sorted(constraints.DEFAULT_CONSTRAINTS.keys()),
sorted(constraints.OVERRIDE_CONSTRAINTS.keys()))
# file is now deleted...
with mock.patch.object(utils, 'SWIFT_CONF_FILE', f.name):
constraints.reload_constraints()
# no constraints have been loaded from non-existent swift.conf
self.assertFalse(constraints.SWIFT_CONSTRAINTS_LOADED)
# no constraints are in OVERRIDE
self.assertEqual([], constraints.OVERRIDE_CONSTRAINTS.keys())
# the EFFECTIVE constraints mirror DEFAULT
self.assertEqual(constraints.EFFECTIVE_CONSTRAINTS,
constraints.DEFAULT_CONSTRAINTS)
finally:
constraints.reload_constraints()
if __name__ == '__main__':
unittest.main()