Splitter

Abstract

The benefits of virtualized IT environments, such as compute clouds, have drawn interested enterprises to migrate their applications onto new platforms to gain the advantages of reduced hardware and energy costs, increased flexibility and deployment speed, and reduced management complexity. However, the process of migrating a complex application takes a considerable amount of effort, particularly when performing post-migration testing to verify that the application still functions correctly in the target environment. The traditional approach of test case generation and execution can take weeks and synthetic test cases may not adequately reflect actual application usage.In this paper, we propose and evaluate a black-box approach for post-migration testing of Web applications without manually creating test cases. A Web proxy is put in front of the production application to intercept all requests from real users, and these requests are simultaneously sent to the production and migrated applications. Results generated by both applications are then compared, and mismatches due to migration problems can be easily detected and presented to testing teams for resolution. We implement this approach in Splitter, a software module that is deployed as a reverse Web proxy. Through our evaluation using a number of real applications, we show that Splitter can effectively automate post-migration testing while also reduce the number of mismatches that must be manually inspected. Equally important, it imposes a relatively small performance overhead on the production environment.

ExVivoMicroTest: ExVivo Testing of Microservices

“…These two variables are finally compared with an assert statement. Note that manipulating the values of specific fields that cannot be reused as‐is is common to approaches for deriving tests from field data 20 . This pattern is iterated for every request that must be produced and for every response that must be checked.…”

Pesto: Automated migration of DOM‐based Web tests towards the visual approach

“…The problem of automatically supporting maintenance of test suites for Web applications has been studied from different points of view [33,34,35], including refactoring techniques applied in the industry [36,37], Web re-engineering and testing [38,39,40,41,42], refactoring of test code [43,44,45,46], and GUI testing and refactoring [8,47,48,49,50,51,52,53,54,55,56]. Nevertheless, none of these works specifically addresses the problem of the automated migration of DOM-based Web test suites to the visual approach.…”

An Enhanced Tool for Migration Testing of Web Applications

“…Ding et al propose a tool called Splitter that can be used in testing of migrated web applications [1]. The basic idea behind Splitter is as follows: A Proxy is put in front of the Web Server and this proxy intercepts HTTP requests and forwards them to both the original and the migrated applications.…”

“…The basic architecture is diagrammed below. It is taken from [1] and is presented here for clarity. The major components of Splitter are:…”