How to run your test on multiple machines using Selenium Grid


About Selenium Grid

Selenium-Grid permits you run your tests on various machines against various programs in parallel. That is, running numerous tests in the meantime against various machines running diverse browsers and working frameworks. Basically, Selenium-Grid bolsters circulated test execution. It takes into account running your tests in a distributed test execution condition.  

Working of Selenium-Grid with a Hub and Nodes

A grid comprises of a solitary hub, and at least one node. Both will utilize the selenium-server.jar executable.

The hub gets a test to be executed alongside data on which browser and ‘platform’ (i.e. WINDOWS, LINUX, and so forth) where the test ought to be run. It ‘knows’ the setup of every node that has been ‘enlisted’ to the hub. Utilizing this data, it chooses an accessible node that has requested for the browser-platform combination.  Once a node has been chosen, Selenium commands initiated by the test are sent to the hub, which passes them to the hub relegated to that test. The node runs the browser and executes the Selenium orders inside that browser against the application under test.


In order to run all the test scripts, present in the framework on a remote computer, we use selenium grid. In selenium grid, there is two type of systems first is HUB and other is a NODE.

HUB: – It is a server computer which controls the execution of the selenium grid.

NODE: – It is the remote Computer which accepts the script from the HUB and executes the test scripts, Multiple nodes systems can communicate with a single hub system.

  For using selenium grid, we have to perform a few steps.

  • Start the HUB
  • Start the NODE

Execute our Framework using remote WebDriver

1. Start the HUB

In the server computer copy selenium-server jar file paste it inside the (c: drive) or any location you want to.
Open the command prompt on the exact location where you have that selenium-server jar file and type the following command java -jar c:/selenium-server-standalone-2.53.1.jar -role hub. 

It should show the following message-
Nodes should register to
Selenium Grid hub is up and running

  The default port number for the HUB is 4444.

2. Start the NODE 

On the remote computer where you want to run the test script copy selenium-server jar file paste it inside the (c: drive) or any location, you want to.
Open the command prompt on the exact location where you have that selenium-server jar file and type the following command java -jar c:/selenium-server-standalone-2.53.1.jar -role node –hub
Note- copy the hub URL from your HUB system.
And it should show the following message-
Registering the node to the hub:
The node is registered to the hub and ready to use

And on your HUB system, you will also get a message-
Registered a node

The default port no for a node is 5555.

3. Execute our Framework using remote WebDriver

To execute the test scripts in a remote computer we have to use the remote web driver class in order to specify the browser which should be open on a remote computer we should use desired capability class.

For executing test scripts in NODE system simply execute test script from the HUB system.


Selenium Grid reduces a lot of batch execution time which can be counted as an advantage.  It can also perform cross-browser testing and perform multiple OS testing. The basic concept of Selenium Grid is that it allows you to run your test on multiple machines and on multiple browsers.

Acquire the knowledge of choosing the right tech stack for your web app

The best possible tech stack i.e. the decision of a programming language, tech, structures and libraries and other development tools that will run your application should be determined before any code gets composed. We all realize that anything truly can be composed in anything. Be that as it may, pick it right and your project will thrive, pick it wrong and you may encounter traps joined with colossal budgetary inconveniences.

In the meantime, the present decision of the correct technology stack is tremendous. In this way, ensure you lead a great deal of thought and examination before deciding on the best possible arrangement of advancements.

There are many commendable options with respect to the best-suiting technology stack for your next enormous venture. Check every one of the upsides and downsides before beginning. To viably execute your task, select experienced group, the correct procedures and test-driven improvement. Guarantee you have discovered a well fit design.

Firstly, study your target audience and the requirements of your project. Research about your potential customers demographic. How can you promote your product amongst the people?
Research about the traffic that is to be expected. The decision of whether you want a complex, simple or mid-range project is crucial.

Once contemplated, you get the complete idea of your optimal client and essentials. And after that, it will turn out to be outstandingly simpler for you to focus on your product’s development and the most recent technology stack it best suits. Indeed, the sort of your project plays an essential part in picking the best possible tech stack.

Divided into two faces


1. Client-side (Front-end)

Client-side, as the name recommends is the place where the genuine connection with the client happens. The client will connect with the site, the web application or a versatile application relying upon what he is utilizing. The customer side is the visual side of the site, enabling clients to collaborate with the site and producing proper reactions.

Tech in the front end.
C) JavaScript

2. Server-side (Backend)

Server-side is the place where developers perform the following functions like programming the business logic, server-side hosting, and deployments, working with databases etc.
The back end consists of
A) A server
B) An application (OS, Web server, Programming language, Web framework),
C) A database


Most Commonly Used Tech Stacks




The MEAN stack is MongoDB, Express, Angular (formerly Angular.js), and Node.js. It picked up prevalence as JavaScript ended up famous on both the customer and server sides. Not at all like other conventional stacks, the MEAN stack is altogether JavaScript-controlled, on account of Node.js, the JS improvement condition that gives JavaScript back-end usefulness. MEAN applications is written in one language for both server-side and customer side execution situations as all components of the MEAN stack support programs are composed in JavaScript.


Angular.js aka Angular 2 is a Front-end web app framework originally created and maintained by Google. It has an easy scale because of its design and dynamic CLI. It runs JavaScript code in the client’s program, permitting your application UI to be dynamic. Angular, initially made and kept up by Google, run your JavaScript code inside the client’s internet browsers to execute a responsive (UI).


Express was the first one to allow developers to build software using JavaScript on the server for the first time. It gave JavaScript a new identity in terms of back-end usability. Back-end web application framework running on top of Node.js. Node.js framework is used for building scalable web applications. Express can be used to simply provide a REST API – giving the front-end app access to the resources it needs e.g., the database.


When it comes to heavy data lifting Node.js has the upper hand as due to its asynchronous nature. Specifically, non concurrent and occasion based design of Node.js makes it an extraordinary fit for RTA (Real-Time Applications, for example, texting and communitarian applications (drawing and video conferencing) in which numerous solicitations are going on simultaneously and where information is every now and again rearranged forward and backward from the server to the customer. The same features make Node.js suitable for applications that process data from IoT (Internet of Things) and Single Page Applications (SPAs) that involve highly flexible, dynamic and heavy client-side functionality.


MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need.

The Document database is used by your back-end application to store its data as JSON (JavaScript Object Notation) documents. The data is stored in many ways
1. It can be column-oriented.
2. Document-oriented
3. Graph-based
4. Organized as a KeyValue store.

It’ll be a better choice for companies with smaller databases and looking for a more general solution.


It is a JavaScript library developed by Facebook for building responsive user interfaces. React is easier for developers to get up to speed with and use.


LAMP Stack


LAMP stands for – Linux Apache MySQL PHP. These components, arranged in layers supporting one another, make up the software stack. Websites and Web Applications run on top of this underlying stack. LAMP works well for both dynamic websites and applications.

The LAMP stack is used by companies like Facebook, Yahoo, Wikipedia just to name a few.


PHP is used by 83.6% of all the websites. It is used to enhance web pages. Amazon, Facebook, and Wikipedia use it extensively. Over 80% of the top 10M websites use PHP.  PHP has a powerful code base that includes web development frameworks (Laravel, Symfony) that enable Rapid Application Development. PHP was designed specifically to smoothly on the Web. That’s the reason it includes all needed functionality to manage HTML, servers, and databases (MySQL in particular).


Developed, Distributed and supported by Oracle Corporation, MySQL is a popular open-source relational database management system (RDBMS). SQL is a standout amongst the most flexible and generally utilized choices accessible, settling on it a sheltered decision and particularly extraordinary for complex questions.



The response to the inquiry lies in the particular needs of the business. Every stack has their own arrangement of points of interest and weaknesses, so the one you pick will generally rely upon the sort of web application that you’re hoping to assemble.


Business Design: Preparing you for 2030


What is Business Design?


Business Design is a human-focused way to deal with development. It applies the standards and practices of configuration to help organizations to make new esteem and new types of competitive advantage. At its center, Business Design is the coordination of client compassion, experience design, and business technique.

How can Business Design be used in the market?


Understanding Customers

Clients regularly need devices to verbalize their own needs, and standard market research methodologies only scratch the surface.

Creating and Testing Ideas

Transforming neglected necessities into advancement. This is tied in with making new thoughts, getting the client feedback and doing quick testing to show signs of improvement arrangement. Advertisers learn systems for ideation and prototyping.

Interfacing with Strategy

New thoughts will fail to prosper on the off chance that they aren’t sponsored by a sound system, including a reasonable arrangement of decisions of how the association will win. Business Design enables associations to investigate new conceivable outcomes in exceptionally unmistakable ways, and eventually settle on better choices that are client driven, comprehensive, community-oriented and creative.

Now the most important question

Why Business Design will be considered a useful skill in the future

Careers in Business design are upcoming as fast as digital technology. Future Business Designers will need to broaden their horizons by learning crossover skills that will make them more valuable in a team environment.
The future of design is Business design and it will prepare you for 2030.


How to approach Business Design

Whenever we’re designing for customers, or for our organization we’ll improve the situation if we see how us to positively impact the business instance of our zone. We have to comprehend what that outcome is, regardless of whether it implies we move it for all the correct reasons. Be that as it may, design lives inside a business case, in any case. So better discover how we develop or change that business case. What’s more, even do the math.

Many individuals in vast organizations can feel overpowered by the design of another item or service. It’s extremely energizing – yet how on earth is it each going to get conveyed? It feels like the vast majority of the design network is pretty abreast with the Minimum Viable Product idea, however, a considerable measure of our customers and organizations truly aren’t, past utilizing the words.

So, separating our designs into key and fringe highlights, with an eye on what’s most vital for the end client and for the business, is a basic aptitude. Very little occurs inside organizations without a group of partners consenting to subsidize something, with some sort of foreseen result.

Whenever we dispatch something that we’ve designed, how are we going to demonstrate it’s working? Or on the other hand not working and needs making strides? As a major aspect of the planned procedure itself, we should work on the times and linkages to guarantee that – once a service or an item is propelled – we can demonstrate how it’s doing. Inherently connected to the primary point, this will be basic for a large group of individuals who’ve paid for this new thought and who need to perceive what it was for.

So, as we’re outlining and creating, we should consider how individuals will bolster this new item or service. What requirements should be changed inside the associations we’re working in? Are their specializations and groups set up effectively? Do they have the perfect individuals with the correct mentalities to care for another item or service, particularly if it’s one that looks to separate them and explore new territories? So, we should help design angles or even whole new associations and methods for working.

Reputations endure the suffering of the organization when products and services fall flat. Also, nobody needs that. The design is (appropriately) fixated on making the best choice for the end client of whatever we’re designing. Also, that is as it ought to be. That level of sympathy is basic.

However, that we likewise need profound sympathy for the customers and organizations we’re working inside. That level of sympathy encourages us to place ourselves in the shoes of representatives and pioneers who are basic to the achievement of whatever we design and empower us to thoroughly consider the items of common sense associated with guides one toward three. Business Designers regularly feel like interpreters, guides, nearly the paste between a few extremely divergent gatherings of individuals. It’s a genuine aptitude.

And at last, Business Design stands or falls on its capacity to recount the correct story at the ideal time to the opportune individual. This is an exemplary design expertise: the capacity to impart well, and get every other person as energized and ready regarding the vision, yet in addition the items of common sense, talking the dialect of the client, and the dialect of the business or association we’re designing for.

Testing Next Generation – TestNG


TestNG is a testing framework inspired from JUnit and NUnit but introducing some new functionality that makes it more powerful and easier to use.

It is an open-source automated testing framework where NG of TestNG means Next Generation.  

Why Test NG

These are the major advantages of Test NG

  • Test NG has advanced features which help us to easily maintain our automation scripts.
  • It can achieve Batch execution and Parallel execution
  • It can achieve Group execution
  • It gives the ability to produce HTML Reports of execution  
  • Data Parameterization is possible  

Annotations available in TestNG

  • @BeforeSuit
  • @AfterSuit
  • @BeforeTest
  • @AfterTest  
  • @BeforeClass  
  • @AfterClass
  • @BeforeMethod 
  • @AfterMethod
  • @Test
  • @Parameters
  • @DataProvider

To use TestNG first you have to install Test NG plugin in Eclipse IDE.

Test NG Class: The class which contains at least one @Test annotation is called TestNG class.

The output is:-

This is Before Method
My First Test
This is After Method
This is Before Method
My Second Test
This is After Method
Total tests run: 2, Failures: 0, Skips: 0

Batch Execution & Run Script Multiple times  

Batch Execution: Executing multiple scripts or multiple TestNG class is called Batch Execution. For achieving batch execution:-  

  1. We have to generate a TestNG suit file.
  2. Add all the classes in the TestNG classes as shown below.   

For generating TestNG suit simply just Right click on TestNG class and move to TestNG and click on Convert to TestNG. We can also create a suit file for a package which contains all TestNG classes by just right-clicking on the package and following the same.

Run Script Multiple Times: To run a test script multiple times we have to use InvocationCount after @Test annotation.

The output is:-  

This is Before Method
My First Test
This is After Method
This is Before Method
My First Test
This is After Method
This is Before Method
My First Test
This is After Method
This is Before Method
My First Test
This is After Method
This is Before Method
My First Test
This is After Method
This is Before Method
My Second Test
This is After Method
Total tests run: 6, Failures: 0, Skips: 0

For changing the order of script execution:

There are different ways to change the order of script execution for TestNG script.

  1. By using ‘priority’ attribute: If we want to change the order of executing script we can use ‘(priority=1)’ after @Test. TestNG by default will execute the scripts and class in Alphabetic order.

The output is:-  

My Third  Test
My Second Test
My First Test
Total tests run: 3, Failures: 0, Skips: 0

  1. By Using ‘dependsOnMethods’ attribute: For changing the order of executing script we can also use ‘(dependsOnMethods = { “methodname” })’ after @Test.

The output is:-

My Third  Test
My Second Test
My First Test
Total tests run: 3, Failures: 0, Skips: 0

  1. By using TestNG Suit file: For changing the order of executing script we can also use includeTag (<include name=“methodname”></include>) in suit file.

The output is:-

My Third  Test
My Second Test
My First Test
Total tests run: 3, Failures: 0, Skips: 0

Parallel Execution:-

We use parallel script execution to test the Script with multiple browsers in order to check compatibility. This is called cross-browser testing. To achieve parallel Script execution, we use parameter tag in test runner in the TestNG Suit file and use one of the annotation @Parameters in TestNG Class.

As a developer, you will find TestNG very useful as it gives the developer the ability to write more flexible and powerful tests with help of easy annotations, grouping, sequencing & parametrizing.

Staff Augmentation – A New Trend in Tech Recruitment


What Is Staff Augmentation?

Staff augmentation is characterized as a technique for filling the supposed ‘skill-hole’ that enables organizations to engage in top-level experts for singular ventures without incurring similar expenses of hiring new full-time workers.

IT staff augmentation merchants enable you to add technical resources to your in-house development group on a short or long-haul premise. These resources are utilized straightforwardly by the seller, in this way wiping out the cost and liability of making new full-time hires. That being stated, remote developers are contracted through a staff augmentation firm and are overseen by the customer they work with and are normally devoted to one project at a time.

Why Staff Augmentation?

In case you’re contemplating strategic staffing solutions for your organization, however, don’t have room schedule-wise or cash to procure full-time workers, you should need to consider Staff Augmentation.

Staff Augmentation is the best choice when you’re wanting to reinforce your present IT group for a specific timeframe or when you have to employ developers with a particular range of abilities.

Whatever is your staff Augmentation plan of action, here are a couple of reasons explaining why it can enable your organization to make larger amounts of progress.

Staff enlargement spares time and cash

Consider to what extent it takes you to enlist a full-time worker. From a set of working responsibilities to enlisting to meeting to introduction and preparing, it’s a significant long process. What’s more, once you’ve experienced that whole procedure, you’re not ensured that the individual you enlisted will remain with your association for a long timeframe.

You’ll additionally spare a huge amount of cash on finance and protection benefits when you adopt staff augmentation. It gives you the correct specialized range of abilities according to your requirement.

Maybe there is one part of your answer that requires very specific coding language dialect. For what reason would you contract a full-time representative with a claim to fame that you’ll presumably just utilize one time?

One of the best advantages of staff augmentation is that you can enlist a whole group of developers — each with a new specialty — that is as of now used to cooperating. This can dramatically accelerate your general improvement time and help get your product to market faster.

Staff Augmentation enables you to scale all over as required

There will be times all through the lifecycle of your business that will be extremely occupied and will need extra help. What’s more, obviously, there will be moderate periods also. As opposed to going through an arrangement or enlisting or cutbacks, it’s substantially less demanding to supplement your present group with “fitting and-play” staffing.

Having the capacity to scale your team as required is the way to having the capacity to scale your organization.
Taking everything into account, the staff augmentation can be extraordinarily advantageous for new companies and undertaking associations. While considering team augmentation, try to take a gander at a few respectable staff expansion suppliers. It’s a smart thought to request a couple of the developers’ resumes to get a thought of the kind of tasks they’ve taken a shot at and their subject matters.

Appreciate an Advantage Over Your Rivals

When you have a firm that deciphers your necessities and requirements, you are in good fortune. Presently you can utilize this channel to pick up an edge over your rivals. You don’t need to stress over overhead expenses yet be upbeat about the way that you approach a tremendous store of talent that would take your task a long way in front of your rivals.

With staff augmentation as an option, you will never again need to stress over gathering due dates. On account of the ongoing requests like reducing spending plan, mission-critical projects, forceful deadlines and shortened product cycles you have no choice but rely on staff augmentation.

Staff Augmentation over Project Outsourcing

Project Outsourcing

In Project Outsourcing, your organization procures a team from another firm. They will be with you for the term of the task. The group will be overseen by the outsourcer, with the particular tasks that they have to do in a detailed manner.

The Comparison

1. Results

A Staff Augmentation team is a talented group to work in digression with your inside staff. The aim is to get more skilled resources.

With Project Outsourcing, the thought is to contract outside groups to complete a particular work. You should disclose your necessities to the outsourcer and assume that they will be met completely. The aim is of accomplishing the wanted outcomes.

2. Picking up Control

With Staff Augmentation, you should prepare the new group. They work together with your perpetual staff and take after the organization standards and procedures.

With Project Outsourcing, the group will work outside the workplace, more often than not. They don’t need to go to your office, while coordinated effort with the interior staff will be insignificant or overseen through the outsourcer. The outsourcer will be the connection here. He/she will pass on the rules and audit purposes of the task.

3. Range of Responsibility

At the point when the Staff Augmentation group comes into your office, you should confer a specific level of preparing to them. Along these lines, you can guarantee that they have the right stuff required for the undertaking, so there is positively no trade-off in quality.

In Project Outsourcing, the preparation is altogether done by the outsourcer so the entirety of your instructions is done (to the merchant), and he/she will convey a group who will give you precisely what you require. The secret lies in enlisting the best merchant.

4. Task Scalability

There is every chance the project extension will be expanded as you go along. In Staff Augmentation, task scalability will prompt acquiring more individuals and prepare them. In any case, fortunately, you can use new aptitudes and infuse them with existing ones.

This is more practical and economical in Project Outsourcing on the grounds that you are paying on the volume of work premise as economies of scale apply here. Expanded profitability is nearly ensured.

Why a Business needs Mobile Apps?


Mobile Apps or Web Apps?

It can be quite a decision to make for a business that is just starting. While businesses with huge funding to back them can afford to have both mobile and web apps. That’s not the case with new start-ups, they have to have all the valid reasons with them before they pay to have an application developed for their service. They have to think smartly and make a choice according to their cost, usability and the audience they serve.

According to statistics, it’s the era of mobiles because the number of mobile users today is greater than the number of desktop users. And it has been going up for the past decade and there is no way it is coming down in the coming years too.

It’s time for businesses to realize mobiles are the effective way to attract customers. They have to start new operations through mobile websites and mobile apps.
Let’s look at reasons why Businesses should go for Mobile Application Development.

Mobile Apps Offer Personalization

Mobile Application serves users with a personalized content and connects with the users at a personal level. They utilize a cohesive, familiar set of design standards which make them more intuitive to users.

When Mobile apps are compared to web apps it’s clear that Mobile Apps offer a more tailored communication. They offer services based on user’s interest, location, frequent behavior.

This helps a mobile app to engage with users. Mobile apps can let users set up their preferences at the start, based on which users can be served with customized content.

Users Spend More Time on Apps

Smartphone users install applications on their phones for almost every service, spending 86% of their time on mobile apps. That leaves just 14% of users time for web apps. Bowsers are not the most favorite things for users to use on their phones.

Capturing the user’s attention through Mobile Apps will prove to be more successful for businesses.

Mobile applications are unimaginably simple to distribute, there is no problem involved with application stores. All the backend for downloading and facilitating the item is dealt with. In return for all of this, application stores take a weighty 30% of all revenue driven through them, yet the advantages of having such a steady establishment are completely justified regardless of the cost.

Getting an item under the control of a client has never been less demanding, and the potential market for Mobile applications is colossal. Google guaranteed they’d achieved 1 billion dynamic Android clients a year ago, and however Apple hasn’t discharged end product numbers, we know they sold around 170 million iPhones a year ago alone.
Tight these numbers down to your particular specialty and the pool of potential clients is as yet colossal.

Build Brand and Recognition

A mobile application for your business can enormously add to your Brand image and Brand loyalty. An application is something that stays on the client’s gadget for some time.

This implies the application is possibly unmistakable to the client whenever they use their mobiles and individual use cell phones at a considerable measure.

The mobiles are increasingly turning into the prime interactive gadget for customers. We as of now utilize our mobiles more than we sit in front of the TV. Despite the fact that PCs still lead the race in the corporate world it’s important that mobiles are considerably more flexible in the way it can be utilized, which makes it significantly more accessible.
Today every business talk about developing the mobile app. On the off chance that you have a business though, you require an application to enhance your example of overcoming adversity. Starting a business today is better with a Mobile application.

A mobile app acts like a billboard sign for your business. You can do what you need with it; you can make it trendy, hip, useful, stunning. Be that as it may, what you truly need to do is make an application that has highlights your clients will love while being well designed and flawlessly outlined.
The more frequently you can get clients involved with your application, the sooner they will be slanted to purchase your item and will get the benefit. In publicizing, this is known as the “compelling recurrence”: as a general guideline, hearing as well as observing your image roughly 20 times is the thing that will get you genuinely notice.

Apps Can Work Faster Than Websites

A very much composed Mobile application can perform activities significantly faster than a web app. Applications more often store information locally on mobiles. Consequently, information recovery happens quickly in Mobile Application.

Applications can additionally spare clients’ time by putting their preferences and utilizing them to take proactive decisions for the clients’ sake.

Mobile applications have the benefit of touch interfaces, which tends to make them simpler and more agreeable for clients. This is particularly evident when you utilize them on the move.