| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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 pytest import mark |
| |
| from superset.utils.memoized import memoized |
| |
| |
| @mark.unittest |
| class TestMemoized: |
| def test_memoized_on_functions(self): |
| watcher = {"val": 0} |
| |
| @memoized |
| def test_function(a, b, c): |
| watcher["val"] += 1 |
| return a * b * c |
| |
| result1 = test_function(1, 2, 3) |
| result2 = test_function(1, 2, 3) |
| assert result1 == result2 |
| assert watcher["val"] == 1 |
| |
| def test_memoized_on_methods(self): |
| class test_class: |
| def __init__(self, num): |
| self.num = num |
| self.watcher = 0 |
| |
| @memoized |
| def test_method(self, a, b, c): |
| self.watcher += 1 |
| return a * b * c * self.num |
| |
| instance = test_class(5) |
| result1 = instance.test_method(1, 2, 3) |
| result2 = instance.test_method(1, 2, 3) |
| assert result1 == result2 |
| assert instance.watcher == 1 |
| instance.num = 10 |
| assert result2 == instance.test_method(1, 2, 3) |
| |
| def test_memoized_on_methods_with_watches(self): |
| class test_class: |
| def __init__(self, x, y): |
| self.x = x |
| self.y = y |
| self.watcher = 0 |
| |
| @memoized(watch=("x", "y")) |
| def test_method(self, a, b, c): |
| self.watcher += 1 |
| return a * b * c * self.x * self.y |
| |
| instance = test_class(3, 12) |
| result1 = instance.test_method(1, 2, 3) |
| result2 = instance.test_method(1, 2, 3) |
| assert result1 == result2 |
| assert instance.watcher == 1 |
| result3 = instance.test_method(2, 3, 4) |
| assert instance.watcher == 2 |
| result4 = instance.test_method(2, 3, 4) |
| assert instance.watcher == 2 |
| assert result3 == result4 |
| assert result3 != result1 |
| instance.x = 1 |
| result5 = instance.test_method(2, 3, 4) |
| assert instance.watcher == 3 |
| assert result5 != result4 |
| result6 = instance.test_method(2, 3, 4) |
| assert instance.watcher == 3 |
| assert result6 == result5 |
| instance.x = 10 |
| instance.y = 10 |
| result7 = instance.test_method(2, 3, 4) |
| assert instance.watcher == 4 |
| assert result7 != result6 |
| instance.x = 3 |
| instance.y = 12 |
| result8 = instance.test_method(1, 2, 3) |
| assert instance.watcher == 4 |
| assert result1 == result8 |
