Hello everyone,
For this week’s blog topic I will talk about JUnit, what it is, the importance of it, why it is used, the features that it offers and many more. First to start everything, what is even JUnit. So JUnit is an open source testing framework for Java and it allows programmers to write and then run automated tests. It is very useful to catch bugs early in the development when they are the least expensive to fix. Some of the key features that JUnit has to offer are its powerful testing abilities. It has easy and simple annotation, making writing down the tests even easier. It is intuitive and with just a few practices anyone can get the hang of it. Similar to the Happy Path Tests learnt with behavioral testing, JUnit encourages those normal operations first to be tested. It also supports negative cases and also boundary tests. The blog that I read was really useful as not only it explained what JUnit is but also recommended some good practices for new programmers. For example they advised to test one behavior at a time. This is important as you wanna test a single aspect of the code then move into the other parts of it. You should also use descriptive test names. This is helpful as a clear name can explain directly what you are trying to test for, eliminating confusion and possibly the chance of writing the same test twice. Another good advice given from the author of the blog is that you need to write tests which are independent. This means that different tests should not depend on each other’s results in order for them to run correctly. Lastly, you should always try to test the edge cases. Testing the boundary conditions of the code and also unexpected inputs. Your project should be ready for anything to handle even if an input does not make sense, it should be able to handle correctly and guide the user in the right path. The blog also gives a detailed tutorial on how to not only install JUnit, giving step by step instructions with examples included but also teaches us how to perform automated testing and even in the cloud. At the end of the blog it even offers a FAQ section, clearing any bit of confusion that readers might have. This is a great blog that I recommend everyone to read. It is useful for all ranges of programmers, from beginners to more experienced ones.
In conclusion JUnit Testing is a fundamental skill to learn if you wanna become a great Java Developer. It helps you verify how your code behaves, helps you catch and fix any bugs that might come up at any time of the project development time. Mastering JUnit will not only improve your code quality but also it will give you a boost of confidence when you make any changes, knowing that JUnit will be there for you to catch any bugs.
Source:
https://testgrid.io/blog/junit-testing/
From the blog Elio's Blog by Elio Ngjelo and used with permission of the author. All other rights reserved by the author.