Node JS: Testing and quality assurance have become essential aspects of software development. As testing can ensure that no mistakes remain in the code, it becomes mandatory to perform thorough testing upon the developed project and resolve any persisting problems or issues.
With modern technology supporting and enhancing development experience, getting the testing strategies updated as various development platforms may need different testing approaches designed and executed. It is found that about 43% of Node.js programmers use the programming language for developing enterprise apps.
The U.S. Bureau of Labor Statistics has research that developers’ employment is estimated to be grown by 15% during 2016 and 2026. HackerRank survey shows that Node Js developers’ demand has increased half of the time in recent time and is predicted to grow more in the upcoming year.
With its cross-platform development compatibility and various features that other programming platforms miss providing, Node Js is widely used, and developers find it truly useful for app development. Hence, there has been a noteworthy increase in the Node JS-based development, which has led to the invention of different strategies to test the code efficiently to ensure no mistakes are found once the code is deployed and used.
What is Node.js?
It’s not a library or framework; Node Js can simply be termed as a runtime environment based on Chrome’s V8 JavaScript engine. Introduced in 2009 by Ryan Dahl at the annual European JSConf, Node JS was instantly recognized as “an exciting single bit of software in the JavaScript universe.” Joyent sponsored Node JS as an open-source project. Cloud computing and hosting solution providers invest in many other technologies like Ruby on Rails and provide hosting services to Linkedin and Twitter.
The latter became the first company to use Node JS for backend development. It was adopted by numerous technology leaders like Netflix, Uber, Walmart, etc. However, it’s now a wide choice of JavaScript with Node JS. Interest in Node JS peaked in 2017, as per Google Trends.
Testing Tips: Know What to Be Performed When Dealing with Node JS Code Testing
Node JS has become a popular framework in JavaScript these days. Millions of developers Node Js to build an app like Netflix, Eventbrite, or any other as per their client’s requirement. As more apps are developed using Node JS, it becomes essential to use the same technology for development as well. It enables you to test and launch a seamless and smooth functioning app.
Using Node JS for testing is a complex process as it has various features and modules. For example, if you are developing a music or video streaming app, you need to consider various parameters. A user using such apps needs correct data and other accessibility, ensuring to enhance their experience to a great extent. It can use Node JS technology to test various modules of the app with ease.
Keep it Simple
The testing code should be as simple as it can be made. Along with ensuring the code’s reliability, it is necessary to keep the time constraint in mind and not waste much on testing alone. As several other steps must be performed to ensure reliable and quality application development, supporting the testing strategy simply and effectively works its best when it comes to testing code in a brief period and produces efficient results.
Example Code for Simple Testing with Node JS
function mul(x,y)
{
return x*y;
}
function testMul()
{
var x = 4;
var y = 5;
val mul = x*y;
var mul2 = mul(4,5);
if(mul == mul2)
console.log(‘Equality Test Passed’);
else
console.log(‘Equality Test Failed’);
}
testMul();Set Clear Test Criteria
Before testing a module, it is essential to understand what that particular module is aiming at providing. Therefore, setting clear testing criteria for the tests being conducted is necessary. It not only helps in conducting testing efficiently but also turns out to be beneficial in the future.
As the testers, companies who look to hire developers or already hired developers and another development team can know the purpose of a particular module. The testing is designed and developed with keeping the criteria in mind, eliminating the chances of getting a code tested for no reason and saves time.
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Adapt to Black Box Testing
Black box testing focuses on checking the functionalities of the developed code rather than checking the code itself. Therefore, all that is to consider is whether the functionalities and implemented features are working well or not? And if not, they must be corrected right away. However, it does not imply skipping the significant steps.
When testing the code, the codes’ internal blocks, such as private methods and private classes, can be skipped as there are fewer chances of finding bugs here. Instead, one should rigorously examine the public methods to assure no mistakes are remaining in the code.
Use Realistic Data During Testing
A hacker might try to get your system down by entering the wrong details and passing confusing strings. To avoid a system crash, it is necessary to test and make your system foolproof from such attacks. Therefore, while testing a code block for its reliability, try to use accurate data to reveal your code’s strength to its best.
Use of Statistics Tools
Statistic tools are useful for measuring and refactoring the objectives to make the application code reliable and error-free. Therefore, using statistics tools, measuring the code standards and optimization can ensure that the code remains intact without errors for a longer duration of time. Removing the code’s complex implementation is essential to ensure no mistakes can possibly be made in the code when the code is put into effect and integrated into the application.
Experiment with Testing Design
Not all applications can be tested using the same approach. Therefore, innovating a testing design is necessary to perform testing excellently and search and fix bugs about the code. Rather than following just the “Pyramid of Testing”, focus on implementing the testing concepts that work by the task at hand to ensure the development is done perfectly and the application produced is error-free.
Be Updated with New Threats
Saving your code from possible vulnerabilities requires you to keep your code updated with every recent update and secure it from all new potential threats. This can be done using community tools or commercial tools. However, still, it is required to know the upcoming threats and their impacts on the code to get your code prepared for the worst threats to come.
Summing It Up
As testing holds its significance in the development cycle, it is never advisable to skip or compromise with the testing intensity. Above mentioned tricks do not affect the intensity of the testing phase conducted over the developed code; rather, they aim at making it more rigorous. In order to achieve an app that is error-free and requiring fewer fixes, testing must be executed, keeping all the required criteria in mind and ensuring no mistakes are to be found later.
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