84 lines
2.8 KiB
Python
84 lines
2.8 KiB
Python
# 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.
|
|
|
|
from horizon.test import helpers as test
|
|
from horizon.utils import memoized
|
|
|
|
|
|
class MemoizedTests(test.TestCase):
|
|
def test_memoized_decorator_cache_on_next_call(self):
|
|
values_list = []
|
|
|
|
@memoized.memoized
|
|
def cache_calls(remove_from):
|
|
values_list.append(remove_from)
|
|
return True
|
|
|
|
def non_cached_calls(remove_from):
|
|
values_list.append(remove_from)
|
|
return True
|
|
|
|
for x in range(0, 5):
|
|
non_cached_calls(1)
|
|
self.assertEqual(5, len(values_list))
|
|
|
|
values_list = []
|
|
for x in range(0, 5):
|
|
cache_calls(1)
|
|
self.assertEqual(1, len(values_list))
|
|
|
|
def test_memoized_with_request_call(self):
|
|
|
|
chorus = [
|
|
"I",
|
|
"Love",
|
|
"Rock 'n' Roll",
|
|
"put another coin",
|
|
"in the Jukebox Baby."
|
|
]
|
|
|
|
leader = 'Joan Jett'
|
|
group = 'Blackhearts'
|
|
|
|
for position, chorus_line in enumerate(chorus):
|
|
|
|
changed_args = False
|
|
|
|
def some_func(some_param):
|
|
if not changed_args:
|
|
self.assertEqual(some_param, chorus_line)
|
|
else:
|
|
self.assertNotEqual(some_param, chorus_line)
|
|
self.assertEqual(some_param, group)
|
|
return leader
|
|
|
|
@memoized.memoized_with_request(some_func, position)
|
|
def some_other_func(*args):
|
|
return args
|
|
|
|
# check chorus_copy[position] is replaced by some_func's
|
|
# output
|
|
output1 = some_other_func(*chorus)
|
|
self.assertEqual(output1[position], leader)
|
|
|
|
# Change args used to call the function
|
|
chorus_copy = list(chorus)
|
|
chorus_copy[position] = group
|
|
changed_args = True
|
|
# check that some_func is called with a different parameter, and
|
|
# that check chorus_copy[position] is replaced by some_func's
|
|
# output and some_other_func still called with the same parameters
|
|
output2 = some_other_func(*chorus_copy)
|
|
self.assertEqual(output2[position], leader)
|
|
# check that some_other_func returned a memoized list.
|
|
self.assertIs(output1, output2)
|