支持异步请求的Web应用自动化测试工具设计与实现

发布时间：2018-03-20 04:35

本文选题：Web服务器性能　切入点：自动化测试　出处：《上海交通大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着互联网的快速发展及网络技术的不断成熟，Web应用需要响应大量用户并发访问，其性能测试越来越重要。保证和提高Web应用的服务质量已经成为测试的重要内容。与传统软件相比，Web应用具有分布式、多用户随机并发访问、支持异步请求、处理相对集中在服务器端的特点，手工很难实现大量终端用户并发访问。因此，自动化测试工具在Web应用服务器的性能测试中占有重要地位。现今的Web应用广泛使用JavaScript和Ajax技术，允许动态加载网页内容，，支持向服务器发送异步请求，提高了Web应用与用户之间的交互性。同时，越来越多的Web应用部署在云平台，根据用户需求动态提供资源，在满足服务水平协议的基础上，提高了系统的可伸缩性和可靠性。因此，对Web应用的弹性测试也是非常重要的一个方面。然而，现有的测试工具在面对复杂的被测系统时，仍然沿用以前的测试框架，根据测试脚本向Web服务器发送和接收请求，获得服务器的响应时间及吞吐量等信息。这类测试工具无法真实生成支持异步请求或部署在云平台的可动态扩展资源的Web应用的负载，无法搜集有效的测试数据，产生的结果缺乏可信度，从而影响对Web服务器性能的测试。针对这些问题，本文基于Faban提出了一个自动化测试框架，并实现了一个Web应用自动化测试工具——FabanPlus。它能够根据用户设计的测试用例和程序，自动执行Web应用中的JavaScript脚本，生成包含异步请求的测试负载，并且根据Web服务器的反馈信息实现负载的动态调节；在测试过程中，FabanPlus实时性地监测、搜集请求响应时间、Web服务器CPU利用率、JavaScript执行异常信息等数据，并根据这些数据生成测试结果报告，分析服务器性能。 FabanPlus测试工具已在实际项目中得到了运用和验证。本文将上海市建筑工地污染源环境监测平台作为被测系统，分析其服务器日志，提取用户行为规律。利用FabanPlus设计和编写测试程序，对其服务器性能进行自动化测试，并且根据测试结果分析Web应用性能，起到了优化系统性能的作用。
[Abstract]:With the rapid development of the Internet and the continuous maturity of network technology, Web applications need to respond to a large number of users to access concurrently. Performance testing is becoming more and more important. It has become an important content to ensure and improve the quality of service of Web applications. Compared with traditional software, web applications are distributed, multi-user random concurrent access, support asynchronous requests. Processing is relatively concentrated on the server side, so it is difficult to achieve a large number of concurrent access by manual users. Therefore, automated testing tools play an important role in the performance testing of Web application servers. Today's Web applications widely use JavaScript and Ajax technology, allowing dynamic loading of Web content, support to send asynchronous requests to the server, improve the interaction between Web applications and users. At the same time, more and more Web applications are deployed on cloud platform. Providing resources dynamically according to the user's requirements, improving the scalability and reliability of the system on the basis of satisfying the service-level protocol. Therefore, the flexibility test of Web applications is also an important aspect. When the existing testing tools are faced with the complex system under test, they still follow the previous test framework and send and receive requests to the Web server according to the test script. Get the response time and throughput of the server. This kind of testing tool can not actually generate the load of Web application that supports asynchronous request or dynamically scalable resource deployed on cloud platform, and can not collect valid test data. The resulting results lack credibility, which affects the testing of Web server performance. To solve these problems, this paper presents an automated testing framework based on Faban, and implements a Web application automation testing tool, Faban Plus. it can automatically execute JavaScript scripts in Web applications according to the test cases and programs designed by users. Generate a test load containing asynchronous requests, and dynamically adjust the load based on feedback from the Web server; during the testing process, Faban Plus monitors the load in real time. The data such as request response time, CPU utilization ratio and CPU execution exception information are collected, and the test result report is generated according to these data, and the server performance is analyzed. The FabanPlus testing tool has been used and verified in the actual project. In this paper, the pollution source environment monitoring platform of Shanghai construction site is taken as the tested system, and its server log is analyzed. Using FabanPlus to design and write test program, to test the server performance automatically, and to analyze the application performance of Web according to the test results, which plays an important role in optimizing the system performance.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09

【共引文献】