Unit testing is a way of testing software where we test the smallest parts of a software application (called “units”). Simply put, “unit testing is testing where a program is broken down into pieces, and each piece is tested carefully.”
The main goal of this testing is to make sure that each unit of the software’s source code is correct and can be used. In the past, special tools were used to test units, but now we use frameworks (like Java framework, .NET framework, and PHP framework) to do unit tests. Unit tests are written and done by developers, and they use a method called WHITE BOX TESTING to do this.
Remember that “unit testing takes a lot of time and needs a lot of patience.” This testing is very helpful because it helps find most of the defects. Usually, unit testing is done after integration testing.
Advantages Of Unit Testing
Here are some benefits of unit testing:
1. This testing helps us find defects and bugs in the software early on. It’s much harder to find defects and bugs later.
2. It makes the coding process more effective and agile (quick), so we can add more features to the software.
3. When we do unit testing, we don’t need as much manual testing. Manual testing is also very boring and expensive.
4. We can improve the software’s design without breaking it by using this testing.
5. We save time and money by finding bugs early on.
6. This testing makes the code more efficient and easier to maintain.
7. One benefit of this testing is that it gives us updated documentation for the software.
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