mirror of
https://github.com/openharmony/utils_native.git
synced 2026-08-27 21:41:00 -04:00
shuchengchao
144 lines
3.9 KiB
C++
144 lines
3.9 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include "observer.h"
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#include <algorithm>
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#include <iostream>
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#include <fstream>
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using namespace testing::ext;
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using namespace OHOS;
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using namespace std;
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class BookList: public Observable {
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public:
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BookList() { books_.clear(); }
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void AddBook(const string& book)
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{
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books_.insert(book);
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SetChanged();
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NotifyObservers();
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}
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void RemoveBook(const string& book)
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{
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books_.erase(book);
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SetChanged();
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NotifyObservers();
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}
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const set<string>& GetBooks() { return books_; }
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private:
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set<string> books_;
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};
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class BookObserver: public Observer {
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public:
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virtual void Update(const Observable* o, const ObserverArg* /* arg */)
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{
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BookList* bookList = reinterpret_cast<BookList*>(const_cast<Observable*>(o));
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books_ = bookList->GetBooks();
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}
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int GetBooksCount() { return static_cast<int>(books_.size()); }
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bool BookExists(const string& book) { return books_.count(book) > 0;}
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private:
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set<string> books_;
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};
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class UtilsObserverTest : public testing::Test {
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public :
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static void SetUpTestCase(void);
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static void TearDownTestCase(void);
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void SetUp();
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void TearDown();
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};
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void UtilsObserverTest::SetUpTestCase(void)
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{
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}
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void UtilsObserverTest::TearDownTestCase(void)
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{
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}
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void UtilsObserverTest::SetUp(void)
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{
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}
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void UtilsObserverTest::TearDown(void)
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{
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}
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HWTEST_F(UtilsObserverTest, test_ObserverNotify, TestSize.Level0)
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{
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BookList bookList;
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shared_ptr<BookObserver> bookObserver1 = make_shared<BookObserver>();
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shared_ptr<BookObserver> bookObserver2 = make_shared<BookObserver>();
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shared_ptr<BookObserver> bookObserver3 = make_shared<BookObserver>();
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bookList.AddObserver(bookObserver1);
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bookList.AddObserver(bookObserver2);
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bookList.AddObserver(bookObserver3);
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bookList.AddBook("book1");
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EXPECT_EQ(bookObserver1->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver2->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver3->GetBooksCount(), 1);
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bookList.RemoveObserver(bookObserver1);
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bookList.RemoveBook("book1");
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EXPECT_EQ(bookObserver1->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver2->GetBooksCount(), 0);
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EXPECT_EQ(bookObserver3->GetBooksCount(), 0);
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bookList.RemoveObserver(bookObserver2);
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bookList.AddBook("book2");
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bookList.AddBook("book3");
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EXPECT_EQ(bookObserver1->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver2->GetBooksCount(), 0);
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EXPECT_EQ(bookObserver3->GetBooksCount(), 2);
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}
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HWTEST_F(UtilsObserverTest, test_RemoveAllObserver, TestSize.Level0)
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{
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BookList bookList;
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shared_ptr<BookObserver> bookObserver1 = make_shared<BookObserver>();
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shared_ptr<BookObserver> bookObserver2 = make_shared<BookObserver>();
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shared_ptr<BookObserver> bookObserver3 = make_shared<BookObserver>();
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bookList.AddObserver(bookObserver1);
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bookList.AddObserver(bookObserver2);
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bookList.AddObserver(bookObserver3);
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bookList.AddBook("book1");
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EXPECT_EQ(bookObserver1->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver2->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver3->GetBooksCount(), 1);
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bookList.RemoveAllObservers();
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bookList.RemoveBook("book1");
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EXPECT_EQ(bookObserver1->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver2->GetBooksCount(), 1);
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EXPECT_EQ(bookObserver3->GetBooksCount(), 1);
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EXPECT_EQ(bookList.GetObserversCount(), 0);
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}
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