ImageKnife/entry/src/ohosTest/ets/test/lrucache.ets

/*
 * Copyright (C) 2023 Huawei Device Co., Ltd.
 * 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 hilog from '@ohos.hilog';
import { describe, beforeAll, beforeEach, afterEach, afterAll, it, expect } from '@ohos/hypium'
import {LruCache} from '@ohos/imageknife' // DiskLruCache用例由DiskLruCache三方库提供

export default function lruCacheTest() {
  describe('lruCacheTest', function () {
    // Defines a test suite. Two parameters are supported: test suite name and test suite function.
    beforeAll(function () {
      // Presets an action, which is performed only once before all test cases of the test suite start.
      // This API supports only one parameter: preset action function.
    })
    beforeEach(function () {
      // Presets an action, which is performed before each unit test case starts.
      // The number of execution times is the same as the number of test cases defined by **it**.
      // This API supports only one parameter: preset action function.
    })
    afterEach(function () {
      // Presets a clear action, which is performed after each unit test case ends.
      // The number of execution times is the same as the number of test cases defined by **it**.
      // This API supports only one parameter: clear action function.
    })
    afterAll(function () {
      // Presets a clear action, which is performed after all test cases of the test suite end.
      // This API supports only one parameter: clear action function.
    })
    it('testLruCacheSize',0, function () {
      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
      let memoryCache = new LruCache<string, any>(100);
      expect(memoryCache.size).assertEqual(0);
      expect(memoryCache.maxsize).assertEqual(100)
    })
    it('testLruCachePut',1, function () {
      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
      let memoryCache = new LruCache<string, any>(5);
      memoryCache.put("1","1");
      memoryCache.put("2","2");
      memoryCache.put("3","3");
      memoryCache.put("4","4");
      memoryCache.put("5","5");
      memoryCache.put("6","6");

      expect(memoryCache.maxsize).assertEqual(5)
      let result =  memoryCache.get("1")
      expect(result).assertEqual(undefined)
    })
    it('testLruCacheGet',2, function () {
      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
      let memoryCache = new LruCache<string, any>(5);
      memoryCache.put("1","1");
      memoryCache.put("2","2");
      memoryCache.put("3","3");
      memoryCache.put("4","4");
      memoryCache.put("5","5");
      memoryCache.put("6","6");

      expect(memoryCache.maxsize).assertEqual(5)
      let result =  memoryCache.get("2")
      expect(result).assertEqual("2")
    })
    it('testLruCacheAlgorithm',3, function () {
      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
      let memoryCache = new LruCache<string, any>(5);
      memoryCache.put("1","1");
      memoryCache.put("2","2");
      memoryCache.put("3","3");
      memoryCache.put("4","4");
      memoryCache.put("5","5");

      memoryCache.get("1");
      memoryCache.get("2");

      memoryCache.foreachLruCache(function (value, key, index) {
      if(index == 0){
        expect(key).assertEqual("2")
        expect(value).assertEqual("2")
      }
    })
    })
    it('testLruCacheRemove',4, function () {
      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
      let memoryCache = new LruCache<string, any>(5);
      memoryCache.put("1","1");
      memoryCache.put("2","2");
      memoryCache.put("3","3");
      memoryCache.put("4","4");
      memoryCache.put("5","5");

      memoryCache.get("1");
      memoryCache.get("2");

      memoryCache.remove("2");

      memoryCache.foreachLruCache(function (value, key, index) {
      if(index == 0){
        expect(key).assertEqual("1")
        expect(value).assertEqual("1")
      }
    })
    })
    it('testLruCacheResize',5, function () {
      // Defines a test case. This API supports three parameters: test case name, filter parameter, and test case function.
      let memoryCache = new LruCache<string, any>(5);
      memoryCache.put("1","1");
      memoryCache.put("2","2");
      memoryCache.put("3","3");
      memoryCache.put("4","4");
      memoryCache.put("5","5");

      memoryCache.resize(4);

      let result1 = memoryCache.get("1");
      expect(result1).assertEqual(undefined);
      let result2 = memoryCache.get("2");
      expect(result2).assertEqual("2");

    })
  })
}