Click here to close now.




















Welcome!

Microservices Expo Authors: Liz McMillan, Roger Strukhoff, Pat Romanski, Elizabeth White, Joe Pruitt

Related Topics: Microservices Expo

Microservices Expo: Blog Feed Post

Web Browser Automation Tools

There are many Web Browser Automation Tools, both paid and free / open source

Web Browser Automation is a process where certain steps in the web browser are performed repetitively to ensure the correct operation of the web application’s functionality. It may be applied for QA testing in the development process and for control over Information System accessibility and performance during implementation. The second becomes more and more important since current market trends indicate that just having a good service is not enough; the service should also be highly accessible and effective. With Web Browser Automation Tools it is possible to check accessibility and performance by periodically running some transaction scenarios for certain services.

There are many Web Browser Automation Tools, both paid and free / open source. The main purpose of these tools is to record a specific transaction scenario for a browser, play it back by injecting JavaScript into web pages and then to provide the corresponding results. The tools vary in many characteristics: OS platform support, supported programming languages, SSL support, whether it uses a real web browser or simulates the real browser’s behavior, etc. Below are presented a relative comparison of some popular free/open source tool’s characteristics.

Tool Simulation Supported Browsers Supported Languages Test Recorder
Selenium No Firefox, IE(partially), Opera (partially), Chrome (partially)[1] C#, Java, Perl, PHP, Python, Ruby Yes
Watij No On Windows only IE, On Linux only Firefox,
On Mac only Safari
java No
Windmill No Python and JavaScript Python, JavaScript, Ruby Yes
Watir No On Windows only IE, Watir Web Driver -IE/FF/Chrome/Safari Ruby Yes
Watin No IE, Chrome, Firefox .net platform languages Yes
Sahi No IE, Safari, Firefox, Chrome, Opera Java, Javascript Yes
Canoo WebTest Yes No need Javascript, Python Yes
CasperJS Yes No need Javascript Yes

Selenium’s different products are compatible, at least partially, with a variety of different browsers, but all of them are fully compatible with Firefox.


Aside from their variation in functionality, these tools have another essential difference. Some of them are headless, which means that they simulate browser behavior. For example, the CasperJS tool uses WebKit engine capabilities to simulate certain test cases. On one hand, headless tools are more productive, but on the other hand, the simulation may generate different results than those of the real browser.
Different tools have their specific advantages. Some of them work with different browsers without significant deviation or trouble; others provide higher performance, etc. There are many articles/posts comparing the pros and cons of web automation tools, but it would also be interesting to compare their performance. We have tested 3 different tools: Selenium, Watij and Casperjs on the same host with the following parameters: Windows 7 32 bit, 4 Gb RAM and the Intel i5 CPU. From these 3 tools, Selenium may currently be the most popular and richly featured, and it offers several products such as IDE, API, Remote Control server (to accept HTTP requests for the browser), Grid server (to test different browser instances running on remote machines), etc. Casperjs is a headless Phantomjs based tool and the Watij is Watir’s java version based on JXbrowser (a rich web browser component to integrate to Java).

To test the tools, we used 45 transaction instances with the same scenario of 7 steps (navigation, clicks, login, logout, etc.). A single transaction execution period was 5 minutes and the overall test duration was 20 minutes. Each tool was tested 2 times: first by running with 1 thread and then with 5 threads. The test results are shown below:
Tool Num. of tests Browsers App run duration Num. of threads Test frequency (min) Transaction step count Num. of tests running during 20 mins Avg. exec time for 1 test (sec)
Watij 45 IE 20 min 5 5 7 34 29.7
Watij 45 IE 20 min 1 5 7 32 33.2
Selenium 45 IE 20 min 5 5 7 - -
Selenium 45 IE 20 min 1 5 7 68 17.6
CasperJS 45 NA 20 min 5 5 7 204 17.1
CasperJS 45 NA 20 min 1 5 7 68 17.2

As you can see, the test results for Selenium with IE browser are absent. The problem was that the Selenium couldn’t run several transaction tests at the same time. Instead of opening several browser instances, it mixes all of them in one browser instance. However, it doesn’t have this kind of problem when working with Firefox or Chrome. For example, running the Selenium with the same conditions but on the Firefox browser, the following results were obtained: average execution time of 1 test is 15.1 seconds, the number of tests run during 20 minutes is 50. The average running time of one transaction test for these tools is not greater than that of the others. The other 2 tools spent a substantial amount of overhead time communicating with the server, starting browser instances, etc.

Examining the performance of selected Web Automation Tools shows that they differ not only in terms of functionality, but that they also behave differently in different conditions (depending on OS, browser type, multithread or singlethread). The main limitation we noticed with Selenium is that it’s primarily designed for Firefox. All of its products support Firefox, and as we have already seen it has problems working with IE. On the other hand the Casperjs is headless and is Webkit based, so it will not work on IE only sites, for example. Meanwhile, Watij works with only one unique browser type per OS (IE on Windows, Firefox on Linux and Safari on Mac). Working with different transaction scenarios simultaneously is much more productive with the headless tools since they consume less time.

 

Read the original blog entry...

More Stories By Hovhannes Avoyan

Hovhannes Avoyan is the CEO of Monitis, Inc., a provider of on-demand systems management and monitoring software to 50,000 users spanning small businesses and Fortune 500 companies.

Prior to Monitis, he served as General Manager and Director of Development at prominent web portal Lycos Europe, where he grew the Lycos Armenia group from 30 people to over 200, making it the company's largest development center. Prior to Lycos, Avoyan was VP of Technology at Brience, Inc. (based in San Francisco and acquired by Syniverse), which delivered mobile internet content solutions to companies like Cisco, Ingram Micro, Washington Mutual, Wyndham Hotels , T-Mobile , and CNN. Prior to that, he served as the founder and CEO of CEDIT ltd., which was acquired by Brience. A 24 year veteran of the software industry, he also runs Sourcio cjsc, an IT consulting company and startup incubator specializing in web 2.0 products and open-source technologies.

Hovhannes is a senior lecturer at the American Univeristy of Armenia and has been a visiting lecturer at San Francisco State University. He is a graduate of Bertelsmann University.

@MicroservicesExpo Stories
"We've just seen a huge influx of new partners coming into our ecosystem, and partners building unique offerings on top of our API set," explained Seth Bostock, Chief Executive Officer at IndependenceIT, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
Digital Transformation is the ultimate goal of cloud computing and related initiatives. The phrase is certainly not a precise one, and as subject to hand-waving and distortion as any high-falutin' terminology in the world of information technology. Yet it is an excellent choice of words to describe what enterprise IT—and by extension, organizations in general—should be working to achieve. Digital Transformation means: handling all the data types being found and created in the organizat...
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
You often hear the two titles of "DevOps" and "Immutable Infrastructure" used independently. In his session at DevOps Summit, John Willis, Technical Evangelist for Docker, covered the union between the two topics and why this is important. He provided an overview of Immutable Infrastructure then showed how an Immutable Continuous Delivery pipeline can be applied as a best practice for "DevOps." He ended the session with some interesting case study examples.
The Software Defined Data Center (SDDC), which enables organizations to seamlessly run in a hybrid cloud model (public + private cloud), is here to stay. IDC estimates that the software-defined networking market will be valued at $3.7 billion by 2016. Security is a key component and benefit of the SDDC, and offers an opportunity to build security 'from the ground up' and weave it into the environment from day one. In his session at 16th Cloud Expo, Reuven Harrison, CTO and Co-Founder of Tufin,...
JavaScript is primarily a client-based dynamic scripting language most commonly used within web browsers as client-side scripts to interact with the user, browser, and communicate asynchronously to servers. If you have been part of any web-based development, odds are you have worked with JavaScript in one form or another. In this article, I'll focus on the aspects of JavaScript that are relevant within the Node.js environment.
Container technology is sending shock waves through the world of cloud computing. Heralded as the 'next big thing,' containers provide software owners a consistent way to package their software and dependencies while infrastructure operators benefit from a standard way to deploy and run them. Containers present new challenges for tracking usage due to their dynamic nature. They can also be deployed to bare metal, virtual machines and various cloud platforms. How do software owners track the usag...
Alibaba, the world’s largest ecommerce provider, has pumped over a $1 billion into its subsidiary, Aliya, a cloud services provider. This is perhaps one of the biggest moments in the global Cloud Wars that signals the entry of China into the main arena. Here is why this matters. The cloud industry worldwide is being propelled into fast growth by tremendous demand for cloud computing services. Cloud, which is highly scalable and offers low investment and high computational capabilities to end us...
One of the ways to increase scalability of services – and applications – is to go “stateless.” The reasons for this are many, but in general by eliminating the mapping between a single client and a single app or service instance you eliminate the need for resources to manage state in the app (overhead) and improve the distributability (I can make up words if I want) of requests across a pool of instances. The latter occurs because sessions don’t need to hang out and consume resources that could ...
Approved this February by the Internet Engineering Task Force (IETF), HTTP/2 is the first major update to HTTP since 1999, when HTTP/1.1 was standardized. Designed with performance in mind, one of the biggest goals of HTTP/2 implementation is to decrease latency while maintaining a high-level compatibility with HTTP/1.1. Though not all testing activities will be impacted by the new protocol, it's important for testers to be aware of any changes moving forward.
This week, I joined SOASTA as Senior Vice President of Performance Analytics. Given my background in cloud computing and distributed systems operations — you may have read my blogs on CNET or GigaOm — this may surprise you, but I want to explain why this is the perfect time to take on this opportunity with this team. In fact, that’s probably the best way to break this down. To explain why I’d leave the world of infrastructure and code for the world of data and analytics, let’s explore the timing...
Learn how to solve the problem of keeping files in sync between multiple Docker containers. In his session at 16th Cloud Expo, Aaron Brongersma, Senior Infrastructure Engineer at Modulus, discussed using rsync, GlusterFS, EBS and Bit Torrent Sync. He broke down the tools that are needed to help create a seamless user experience. In the end, can we have an environment where we can easily move Docker containers, servers, and volumes without impacting our applications? He shared his results so yo...
Auto-scaling environments, micro-service architectures and globally-distributed teams are just three common examples of why organizations today need automation and interoperability more than ever. But is interoperability something we simply start doing, or does it require a reexamination of our processes? And can we really improve our processes without first making interoperability a requirement for how we choose our tools?
Cloud Migration Management (CMM) refers to the best practices for planning and managing migration of IT systems from a legacy platform to a Cloud Provider through a combination professional services consulting and software tools. A Cloud migration project can be a relatively simple exercise, where applications are migrated ‘as is’, to gain benefits such as elastic capacity and utility pricing, but without making any changes to the application architecture, software development methods or busine...
The Internet of Things. Cloud. Big Data. Real-Time Analytics. To those who do not quite understand what these phrases mean (and let’s be honest, that’s likely to be a large portion of the world), words like “IoT” and “Big Data” are just buzzwords. The truth is, the Internet of Things encompasses much more than jargon and predictions of connected devices. According to Parker Trewin, Senior Director of Content and Communications of Aria Systems, “IoT is big news because it ups the ante: Reach out ...
At DevOps Summit NY there’s been a whole lot of talk about not just DevOps, but containers, IoT, and microservices. Sessions focused not just on the cultural shift needed to grow at scale with a DevOps approach, but also made sure to include the network ”plumbing” needed to ensure success as applications decompose into the microservice architectures enabling rapid growth and support for the Internet of (Every)Things.
Our guest on the podcast this week is Adrian Cockcroft, Technology Fellow at Battery Ventures. We discuss what makes Docker and Netflix highly successful, especially through their use of well-designed IT architecture and DevOps.
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Arch...
Public Cloud IaaS started its life in the developer and startup communities and has grown rapidly to a $20B+ industry, but it still pales in comparison to how much is spent worldwide on IT: $3.6 trillion. In fact, there are 8.6 million data centers worldwide, the reality is many small and medium sized business have server closets and colocation footprints filled with servers and storage gear. While on-premise environment virtualization may have peaked at 75%, the Public Cloud has lagged in adop...
MuleSoft has announced the findings of its 2015 Connectivity Benchmark Report on the adoption and business impact of APIs. The findings suggest traditional businesses are quickly evolving into "composable enterprises" built out of hundreds of connected software services, applications and devices. Most are embracing the Internet of Things (IoT) and microservices technologies like Docker. A majority are integrating wearables, like smart watches, and more than half plan to generate revenue with ...