5 Best Practices for Automation Testing with Node.js. Node JS has become the first choice of many developers nowadays as it offers great advantages. Industry giants such as Walmart, NASA, Intel, and Twitter have been successfully using this platform. The reason behind a huge affinity for Node.js is its speed, easy accessibility, data streaming, and scalability. It utilizes an event-driven I/O model to develop intuitive, responsive and robust applications.
Now the question that crosses our mind is that ‘How can automation testing help a Node.js Development Company enhance the performance of the end product?’ Well, the testing helps in analyzing the stability of your application and making it more stable. This helps you save from making a wrong decision which can take the software down.
It is essential to know that the code you are offering to the end-users should be reliable and bug-free. Testing helps you maintain the quality of the product which gains confidence. Therefore, automation testing is necessary to have accurate, consistent and satisfactory results.
Therefore, to keep any last-minute failures away, let us go through some of the best practices for testing Node.js in 2019.
Isolate Testing
It is believed that testing should be atomic and isolated. In isolation testing the code is broken down into different modules in order to find out the defects easily in isolation. This practice benefits the most when defects in the code aren’t easily analyzed and resolved. Also, if you have codes depending on each other, then a failure in one code will affect the other. This issue can be handled better with isolation testing.
Since it’s a time-consuming procedure, you should have stubs and drivers available to retest them individually.
Additionally, the tests should follow atomicity property also means the code should not fail in between while testing. Make sure that the code is about to be tested and should be kept separate for every test. It will enhance the performance and speed of the code.
To keep up with the trend top Software Development Company are now hiring Node.js developers in large numbers as Node.js is said to boost the team’s productivity while increasing the performance of their applications. This, in turn, aids in improving the testing process.
Provide a Meaningful Title to the Test Case
The best practice for writing effective test cases is to provide meaningful and easy-to-understand titles to them. Do not keep any random title that is used widely, rather keep a title that offers answers to these questions-
- What are you testing?
- What are the various scenarios being tested?
- What is the expected result?
We mean to say that it is better to keep a title that makes sense to you and it reminds of what the test case is supposed to function as.
Utilizing Assertions
It can simply be a comment used by the developer to analyze the working of the code. These statements were declared at the time of coding. For instance, the below-written code explains the meaning itself.
assert( expected === 3, ‘one plus two is three’); // this assertion will not have any output until it is true, therefore in order to see the output you will have to make the case false.
Assertions are not only self-explanatory but also they are more beneficial than the normal tests. After inserting the assertion, you need not worry about the response until the test fails.
Employ a Test Runner
A test runner is nothing but a tool or a library that takes a source code directory containing unit tests to execute them and write the test results. It writes the results back on the console or the log files. It is advisable to use the best test runner to get appropriate results. Having test runners with the database can be advantageous as it takes database values and performs different test cases on it.
Check for Plagiarism
When you are testing the Node.js source code, it is wise to check it for plagiarism. Copying and pasting the code from the internet is not the right practice to do. It is because you might not know if the code copied from the internet is licensed or not. It can lead to serious copyright issues and your organization may fall into trouble. If there is no other option than copying the code, then we suggest you tweak the code a bit for the benefit of your organization.
Follow these Best Practices for Better Results
As an analyst, you may find automation testing in Node.js a bit difficult but if you utilize the above discussed best practices then you can become an expert. Additionally, you can also focus on exceptional scenarios, follow the testing pyramid procedure, utilize component testing, resolve infrastructure issues, and more to achieve a better outcome. We hope that this article will help you come up with a smooth testing experience.