nova/nova/tests/test_utils.py

759 lines
29 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 Justin Santa Barbara
#
# 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 __builtin__
import datetime
import hashlib
import os
import os.path
import shutil
import socket
import StringIO
import tempfile
import eventlet
from eventlet import greenpool
import iso8601
import mox
import nova
from nova import exception
from nova import flags
from nova.openstack.common import timeutils
from nova import test
from nova import utils
FLAGS = flags.FLAGS
class ExecuteTestCase(test.TestCase):
def test_retry_on_failure(self):
fd, tmpfilename = tempfile.mkstemp()
_, tmpfilename2 = tempfile.mkstemp()
try:
fp = os.fdopen(fd, 'w+')
fp.write('''#!/bin/sh
# If stdin fails to get passed during one of the runs, make a note.
if ! grep -q foo
then
echo 'failure' > "$1"
fi
# If stdin has failed to get passed during this or a previous run, exit early.
if grep failure "$1"
then
exit 1
fi
runs="$(cat $1)"
if [ -z "$runs" ]
then
runs=0
fi
runs=$(($runs + 1))
echo $runs > "$1"
exit 1
''')
fp.close()
os.chmod(tmpfilename, 0755)
self.assertRaises(exception.ProcessExecutionError,
utils.execute,
tmpfilename, tmpfilename2, attempts=10,
process_input='foo',
delay_on_retry=False)
fp = open(tmpfilename2, 'r')
runs = fp.read()
fp.close()
self.assertNotEquals(runs.strip(), 'failure', 'stdin did not '
'always get passed '
'correctly')
runs = int(runs.strip())
self.assertEquals(runs, 10,
'Ran %d times instead of 10.' % (runs,))
finally:
os.unlink(tmpfilename)
os.unlink(tmpfilename2)
def test_unknown_kwargs_raises_error(self):
self.assertRaises(exception.NovaException,
utils.execute,
'/usr/bin/env', 'true',
this_is_not_a_valid_kwarg=True)
def test_check_exit_code_boolean(self):
utils.execute('/usr/bin/env', 'false', check_exit_code=False)
self.assertRaises(exception.ProcessExecutionError,
utils.execute,
'/usr/bin/env', 'false', check_exit_code=True)
def test_no_retry_on_success(self):
fd, tmpfilename = tempfile.mkstemp()
_, tmpfilename2 = tempfile.mkstemp()
try:
fp = os.fdopen(fd, 'w+')
fp.write('''#!/bin/sh
# If we've already run, bail out.
grep -q foo "$1" && exit 1
# Mark that we've run before.
echo foo > "$1"
# Check that stdin gets passed correctly.
grep foo
''')
fp.close()
os.chmod(tmpfilename, 0755)
utils.execute(tmpfilename,
tmpfilename2,
process_input='foo',
attempts=2)
finally:
os.unlink(tmpfilename)
os.unlink(tmpfilename2)
class GetFromPathTestCase(test.TestCase):
def test_tolerates_nones(self):
f = utils.get_from_path
input = []
self.assertEquals([], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [None]
self.assertEquals([], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': None}]
self.assertEquals([], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': None}}]
self.assertEquals([{'b': None}], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': {'c': None}}}]
self.assertEquals([{'b': {'c': None}}], f(input, "a"))
self.assertEquals([{'c': None}], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': {'c': None}}}, {'a': None}]
self.assertEquals([{'b': {'c': None}}], f(input, "a"))
self.assertEquals([{'c': None}], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': {'c': None}}}, {'a': {'b': None}}]
self.assertEquals([{'b': {'c': None}}, {'b': None}], f(input, "a"))
self.assertEquals([{'c': None}], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
def test_does_select(self):
f = utils.get_from_path
input = [{'a': 'a_1'}]
self.assertEquals(['a_1'], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': 'b_1'}}]
self.assertEquals([{'b': 'b_1'}], f(input, "a"))
self.assertEquals(['b_1'], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': {'c': 'c_1'}}}]
self.assertEquals([{'b': {'c': 'c_1'}}], f(input, "a"))
self.assertEquals([{'c': 'c_1'}], f(input, "a/b"))
self.assertEquals(['c_1'], f(input, "a/b/c"))
input = [{'a': {'b': {'c': 'c_1'}}}, {'a': None}]
self.assertEquals([{'b': {'c': 'c_1'}}], f(input, "a"))
self.assertEquals([{'c': 'c_1'}], f(input, "a/b"))
self.assertEquals(['c_1'], f(input, "a/b/c"))
input = [{'a': {'b': {'c': 'c_1'}}},
{'a': {'b': None}}]
self.assertEquals([{'b': {'c': 'c_1'}}, {'b': None}], f(input, "a"))
self.assertEquals([{'c': 'c_1'}], f(input, "a/b"))
self.assertEquals(['c_1'], f(input, "a/b/c"))
input = [{'a': {'b': {'c': 'c_1'}}},
{'a': {'b': {'c': 'c_2'}}}]
self.assertEquals([{'b': {'c': 'c_1'}}, {'b': {'c': 'c_2'}}],
f(input, "a"))
self.assertEquals([{'c': 'c_1'}, {'c': 'c_2'}], f(input, "a/b"))
self.assertEquals(['c_1', 'c_2'], f(input, "a/b/c"))
self.assertEquals([], f(input, "a/b/c/d"))
self.assertEquals([], f(input, "c/a/b/d"))
self.assertEquals([], f(input, "i/r/t"))
def test_flattens_lists(self):
f = utils.get_from_path
input = [{'a': [1, 2, 3]}]
self.assertEquals([1, 2, 3], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': [1, 2, 3]}}]
self.assertEquals([{'b': [1, 2, 3]}], f(input, "a"))
self.assertEquals([1, 2, 3], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': {'b': [1, 2, 3]}}, {'a': {'b': [4, 5, 6]}}]
self.assertEquals([1, 2, 3, 4, 5, 6], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': [{'b': [1, 2, 3]}, {'b': [4, 5, 6]}]}]
self.assertEquals([1, 2, 3, 4, 5, 6], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = [{'a': [1, 2, {'b': 'b_1'}]}]
self.assertEquals([1, 2, {'b': 'b_1'}], f(input, "a"))
self.assertEquals(['b_1'], f(input, "a/b"))
def test_bad_xpath(self):
f = utils.get_from_path
self.assertRaises(exception.NovaException, f, [], None)
self.assertRaises(exception.NovaException, f, [], "")
self.assertRaises(exception.NovaException, f, [], "/")
self.assertRaises(exception.NovaException, f, [], "/a")
self.assertRaises(exception.NovaException, f, [], "/a/")
self.assertRaises(exception.NovaException, f, [], "//")
self.assertRaises(exception.NovaException, f, [], "//a")
self.assertRaises(exception.NovaException, f, [], "a//a")
self.assertRaises(exception.NovaException, f, [], "a//a/")
self.assertRaises(exception.NovaException, f, [], "a/a/")
def test_real_failure1(self):
# Real world failure case...
# We weren't coping when the input was a Dictionary instead of a List
# This led to test_accepts_dictionaries
f = utils.get_from_path
inst = {'fixed_ip': {'floating_ips': [{'address': '1.2.3.4'}],
'address': '192.168.0.3'},
'hostname': ''}
private_ips = f(inst, 'fixed_ip/address')
public_ips = f(inst, 'fixed_ip/floating_ips/address')
self.assertEquals(['192.168.0.3'], private_ips)
self.assertEquals(['1.2.3.4'], public_ips)
def test_accepts_dictionaries(self):
f = utils.get_from_path
input = {'a': [1, 2, 3]}
self.assertEquals([1, 2, 3], f(input, "a"))
self.assertEquals([], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = {'a': {'b': [1, 2, 3]}}
self.assertEquals([{'b': [1, 2, 3]}], f(input, "a"))
self.assertEquals([1, 2, 3], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = {'a': [{'b': [1, 2, 3]}, {'b': [4, 5, 6]}]}
self.assertEquals([1, 2, 3, 4, 5, 6], f(input, "a/b"))
self.assertEquals([], f(input, "a/b/c"))
input = {'a': [1, 2, {'b': 'b_1'}]}
self.assertEquals([1, 2, {'b': 'b_1'}], f(input, "a"))
self.assertEquals(['b_1'], f(input, "a/b"))
class GenericUtilsTestCase(test.TestCase):
def test_parse_server_string(self):
result = utils.parse_server_string('::1')
self.assertEqual(('::1', ''), result)
result = utils.parse_server_string('[::1]:8773')
self.assertEqual(('::1', '8773'), result)
result = utils.parse_server_string('2001:db8::192.168.1.1')
self.assertEqual(('2001:db8::192.168.1.1', ''), result)
result = utils.parse_server_string('[2001:db8::192.168.1.1]:8773')
self.assertEqual(('2001:db8::192.168.1.1', '8773'), result)
result = utils.parse_server_string('192.168.1.1')
self.assertEqual(('192.168.1.1', ''), result)
result = utils.parse_server_string('192.168.1.2:8773')
self.assertEqual(('192.168.1.2', '8773'), result)
result = utils.parse_server_string('192.168.1.3')
self.assertEqual(('192.168.1.3', ''), result)
result = utils.parse_server_string('www.example.com:8443')
self.assertEqual(('www.example.com', '8443'), result)
result = utils.parse_server_string('www.example.com')
self.assertEqual(('www.example.com', ''), result)
# error case
result = utils.parse_server_string('www.exa:mple.com:8443')
self.assertEqual(('', ''), result)
def test_hostname_unicode_sanitization(self):
hostname = u"\u7684.test.example.com"
self.assertEqual("test.example.com",
utils.sanitize_hostname(hostname))
def test_hostname_sanitize_periods(self):
hostname = "....test.example.com..."
self.assertEqual("test.example.com",
utils.sanitize_hostname(hostname))
def test_hostname_sanitize_dashes(self):
hostname = "----test.example.com---"
self.assertEqual("test.example.com",
utils.sanitize_hostname(hostname))
def test_hostname_sanitize_characters(self):
hostname = "(#@&$!(@*--#&91)(__=+--test-host.example!!.com-0+"
self.assertEqual("91----test-host.example.com-0",
utils.sanitize_hostname(hostname))
def test_hostname_translate(self):
hostname = "<}\x1fh\x10e\x08l\x02l\x05o\x12!{>"
self.assertEqual("hello", utils.sanitize_hostname(hostname))
def test_bool_from_str(self):
self.assertTrue(utils.bool_from_str('1'))
self.assertTrue(utils.bool_from_str('2'))
self.assertTrue(utils.bool_from_str('-1'))
self.assertTrue(utils.bool_from_str('true'))
self.assertTrue(utils.bool_from_str('True'))
self.assertTrue(utils.bool_from_str('tRuE'))
self.assertFalse(utils.bool_from_str('False'))
self.assertFalse(utils.bool_from_str('false'))
self.assertFalse(utils.bool_from_str('0'))
self.assertFalse(utils.bool_from_str(None))
self.assertFalse(utils.bool_from_str('junk'))
def test_generate_glance_url(self):
generated_url = utils.generate_glance_url()
actual_url = "http://%s:%d" % (FLAGS.glance_host, FLAGS.glance_port)
self.assertEqual(generated_url, actual_url)
def test_read_cached_file(self):
self.mox.StubOutWithMock(os.path, "getmtime")
os.path.getmtime(mox.IgnoreArg()).AndReturn(1)
self.mox.ReplayAll()
cache_data = {"data": 1123, "mtime": 1}
data = utils.read_cached_file("/this/is/a/fake", cache_data)
self.assertEqual(cache_data["data"], data)
def test_read_modified_cached_file(self):
self.mox.StubOutWithMock(os.path, "getmtime")
self.mox.StubOutWithMock(__builtin__, 'open')
os.path.getmtime(mox.IgnoreArg()).AndReturn(2)
fake_contents = "lorem ipsum"
fake_file = self.mox.CreateMockAnything()
fake_file.read().AndReturn(fake_contents)
fake_context_manager = self.mox.CreateMockAnything()
fake_context_manager.__enter__().AndReturn(fake_file)
fake_context_manager.__exit__(mox.IgnoreArg(),
mox.IgnoreArg(),
mox.IgnoreArg())
__builtin__.open(mox.IgnoreArg()).AndReturn(fake_context_manager)
self.mox.ReplayAll()
cache_data = {"data": 1123, "mtime": 1}
self.reload_called = False
def test_reload(reloaded_data):
self.assertEqual(reloaded_data, fake_contents)
self.reload_called = True
data = utils.read_cached_file("/this/is/a/fake", cache_data,
reload_func=test_reload)
self.assertEqual(data, fake_contents)
self.assertTrue(self.reload_called)
def test_generate_password(self):
password = utils.generate_password()
self.assertTrue([c for c in password if c in '0123456789'])
self.assertTrue([c for c in password
if c in 'abcdefghijklmnopqrstuvwxyz'])
self.assertTrue([c for c in password
if c in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'])
def test_read_file_as_root(self):
def fake_execute(*args, **kwargs):
if args[1] == 'bad':
raise exception.ProcessExecutionError
return 'fakecontents', None
self.stubs.Set(utils, 'execute', fake_execute)
contents = utils.read_file_as_root('good')
self.assertEqual(contents, 'fakecontents')
self.assertRaises(exception.FileNotFound,
utils.read_file_as_root, 'bad')
def test_strcmp_const_time(self):
self.assertTrue(utils.strcmp_const_time('abc123', 'abc123'))
self.assertFalse(utils.strcmp_const_time('a', 'aaaaa'))
self.assertFalse(utils.strcmp_const_time('ABC123', 'abc123'))
def test_temporary_chown(self):
def fake_execute(*args, **kwargs):
if args[0] == 'chown':
fake_execute.uid = args[1]
self.stubs.Set(utils, 'execute', fake_execute)
with tempfile.NamedTemporaryFile() as f:
with utils.temporary_chown(f.name, owner_uid=2):
self.assertEqual(fake_execute.uid, 2)
self.assertEqual(fake_execute.uid, os.getuid())
def test_service_is_up(self):
fts_func = datetime.datetime.fromtimestamp
fake_now = 1000
down_time = 5
self.flags(service_down_time=down_time)
self.mox.StubOutWithMock(timeutils, 'utcnow')
# Up (equal)
timeutils.utcnow().AndReturn(fts_func(fake_now))
service = {'updated_at': fts_func(fake_now - down_time),
'created_at': fts_func(fake_now - down_time)}
self.mox.ReplayAll()
result = utils.service_is_up(service)
self.assertTrue(result)
self.mox.ResetAll()
# Up
timeutils.utcnow().AndReturn(fts_func(fake_now))
service = {'updated_at': fts_func(fake_now - down_time + 1),
'created_at': fts_func(fake_now - down_time + 1)}
self.mox.ReplayAll()
result = utils.service_is_up(service)
self.assertTrue(result)
self.mox.ResetAll()
# Down
timeutils.utcnow().AndReturn(fts_func(fake_now))
service = {'updated_at': fts_func(fake_now - down_time - 1),
'created_at': fts_func(fake_now - down_time - 1)}
self.mox.ReplayAll()
result = utils.service_is_up(service)
self.assertFalse(result)
def test_xhtml_escape(self):
self.assertEqual('&quot;foo&quot;', utils.xhtml_escape('"foo"'))
self.assertEqual('&apos;foo&apos;', utils.xhtml_escape("'foo'"))
def test_hash_file(self):
data = 'Mary had a little lamb, its fleece as white as snow'
flo = StringIO.StringIO(data)
h1 = utils.hash_file(flo)
h2 = hashlib.sha1(data).hexdigest()
self.assertEquals(h1, h2)
class IsUUIDLikeTestCase(test.TestCase):
def assertUUIDLike(self, val, expected):
result = utils.is_uuid_like(val)
self.assertEqual(result, expected)
def test_good_uuid(self):
val = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
self.assertUUIDLike(val, True)
def test_integer_passed(self):
val = 1
self.assertUUIDLike(val, False)
def test_non_uuid_string_passed(self):
val = 'foo-fooo'
self.assertUUIDLike(val, False)
def test_non_uuid_string_passed2(self):
val = 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
self.assertUUIDLike(val, False)
def test_gen_valid_uuid(self):
self.assertUUIDLike(str(utils.gen_uuid()), True)
class MonkeyPatchTestCase(test.TestCase):
"""Unit test for utils.monkey_patch()."""
def setUp(self):
super(MonkeyPatchTestCase, self).setUp()
self.example_package = 'nova.tests.monkey_patch_example.'
self.flags(
monkey_patch=True,
monkey_patch_modules=[self.example_package + 'example_a' + ':'
+ self.example_package + 'example_decorator'])
def test_monkey_patch(self):
utils.monkey_patch()
nova.tests.monkey_patch_example.CALLED_FUNCTION = []
from nova.tests.monkey_patch_example import example_a
from nova.tests.monkey_patch_example import example_b
self.assertEqual('Example function', example_a.example_function_a())
exampleA = example_a.ExampleClassA()
exampleA.example_method()
ret_a = exampleA.example_method_add(3, 5)
self.assertEqual(ret_a, 8)
self.assertEqual('Example function', example_b.example_function_b())
exampleB = example_b.ExampleClassB()
exampleB.example_method()
ret_b = exampleB.example_method_add(3, 5)
self.assertEqual(ret_b, 8)
package_a = self.example_package + 'example_a.'
self.assertTrue(package_a + 'example_function_a'
in nova.tests.monkey_patch_example.CALLED_FUNCTION)
self.assertTrue(package_a + 'ExampleClassA.example_method'
in nova.tests.monkey_patch_example.CALLED_FUNCTION)
self.assertTrue(package_a + 'ExampleClassA.example_method_add'
in nova.tests.monkey_patch_example.CALLED_FUNCTION)
package_b = self.example_package + 'example_b.'
self.assertFalse(package_b + 'example_function_b'
in nova.tests.monkey_patch_example.CALLED_FUNCTION)
self.assertFalse(package_b + 'ExampleClassB.example_method'
in nova.tests.monkey_patch_example.CALLED_FUNCTION)
self.assertFalse(package_b + 'ExampleClassB.example_method_add'
in nova.tests.monkey_patch_example.CALLED_FUNCTION)
class TestFileLocks(test.TestCase):
def test_concurrent_green_lock_succeeds(self):
"""Verify spawn_n greenthreads with two locks run concurrently."""
self.completed = False
with utils.tempdir() as tmpdir:
def locka(wait):
a = utils.InterProcessLock(os.path.join(tmpdir, 'a'))
with a:
wait.wait()
self.completed = True
def lockb(wait):
b = utils.InterProcessLock(os.path.join(tmpdir, 'b'))
with b:
wait.wait()
wait1 = eventlet.event.Event()
wait2 = eventlet.event.Event()
pool = greenpool.GreenPool()
pool.spawn_n(locka, wait1)
pool.spawn_n(lockb, wait2)
wait2.send()
eventlet.sleep(0)
wait1.send()
pool.waitall()
self.assertTrue(self.completed)
class AuditPeriodTest(test.TestCase):
def setUp(self):
super(AuditPeriodTest, self).setUp()
#a fairly random time to test with
self.test_time = datetime.datetime(second=23,
minute=12,
hour=8,
day=5,
month=3,
year=2012)
timeutils.set_time_override(override_time=self.test_time)
def tearDown(self):
timeutils.clear_time_override()
super(AuditPeriodTest, self).tearDown()
def test_hour(self):
begin, end = utils.last_completed_audit_period(unit='hour')
self.assertEquals(begin, datetime.datetime(
hour=7,
day=5,
month=3,
year=2012))
self.assertEquals(end, datetime.datetime(
hour=8,
day=5,
month=3,
year=2012))
def test_hour_with_offset_before_current(self):
begin, end = utils.last_completed_audit_period(unit='hour@10')
self.assertEquals(begin, datetime.datetime(
minute=10,
hour=7,
day=5,
month=3,
year=2012))
self.assertEquals(end, datetime.datetime(
minute=10,
hour=8,
day=5,
month=3,
year=2012))
def test_hour_with_offset_after_current(self):
begin, end = utils.last_completed_audit_period(unit='hour@30')
self.assertEquals(begin, datetime.datetime(
minute=30,
hour=6,
day=5,
month=3,
year=2012))
self.assertEquals(end, datetime.datetime(
minute=30,
hour=7,
day=5,
month=3,
year=2012))
def test_day(self):
begin, end = utils.last_completed_audit_period(unit='day')
self.assertEquals(begin, datetime.datetime(
day=4,
month=3,
year=2012))
self.assertEquals(end, datetime.datetime(
day=5,
month=3,
year=2012))
def test_day_with_offset_before_current(self):
begin, end = utils.last_completed_audit_period(unit='day@6')
self.assertEquals(begin, datetime.datetime(
hour=6,
day=4,
month=3,
year=2012))
self.assertEquals(end, datetime.datetime(
hour=6,
day=5,
month=3,
year=2012))
def test_day_with_offset_after_current(self):
begin, end = utils.last_completed_audit_period(unit='day@10')
self.assertEquals(begin, datetime.datetime(
hour=10,
day=3,
month=3,
year=2012))
self.assertEquals(end, datetime.datetime(
hour=10,
day=4,
month=3,
year=2012))
def test_month(self):
begin, end = utils.last_completed_audit_period(unit='month')
self.assertEquals(begin, datetime.datetime(
day=1,
month=2,
year=2012))
self.assertEquals(end, datetime.datetime(
day=1,
month=3,
year=2012))
def test_month_with_offset_before_current(self):
begin, end = utils.last_completed_audit_period(unit='month@2')
self.assertEquals(begin, datetime.datetime(
day=2,
month=2,
year=2012))
self.assertEquals(end, datetime.datetime(
day=2,
month=3,
year=2012))
def test_month_with_offset_after_current(self):
begin, end = utils.last_completed_audit_period(unit='month@15')
self.assertEquals(begin, datetime.datetime(
day=15,
month=1,
year=2012))
self.assertEquals(end, datetime.datetime(
day=15,
month=2,
year=2012))
def test_year(self):
begin, end = utils.last_completed_audit_period(unit='year')
self.assertEquals(begin, datetime.datetime(
day=1,
month=1,
year=2011))
self.assertEquals(end, datetime.datetime(
day=1,
month=1,
year=2012))
def test_year_with_offset_before_current(self):
begin, end = utils.last_completed_audit_period(unit='year@2')
self.assertEquals(begin, datetime.datetime(
day=1,
month=2,
year=2011))
self.assertEquals(end, datetime.datetime(
day=1,
month=2,
year=2012))
def test_year_with_offset_after_current(self):
begin, end = utils.last_completed_audit_period(unit='year@6')
self.assertEquals(begin, datetime.datetime(
day=1,
month=6,
year=2010))
self.assertEquals(end, datetime.datetime(
day=1,
month=6,
year=2011))
class DiffDict(test.TestCase):
"""Unit tests for diff_dict()"""
def test_no_change(self):
old = dict(a=1, b=2, c=3)
new = dict(a=1, b=2, c=3)
diff = utils.diff_dict(old, new)
self.assertEqual(diff, {})
def test_new_key(self):
old = dict(a=1, b=2, c=3)
new = dict(a=1, b=2, c=3, d=4)
diff = utils.diff_dict(old, new)
self.assertEqual(diff, dict(d=['+', 4]))
def test_changed_key(self):
old = dict(a=1, b=2, c=3)
new = dict(a=1, b=4, c=3)
diff = utils.diff_dict(old, new)
self.assertEqual(diff, dict(b=['+', 4]))
def test_removed_key(self):
old = dict(a=1, b=2, c=3)
new = dict(a=1, c=3)
diff = utils.diff_dict(old, new)
self.assertEqual(diff, dict(b=['-']))