Unit testing vs Functional testing

What is unit testing?

It is a testing method where an individual component or each unit is tested. This testing method aims to ensure that the individual components or units are working as expected. The source code is broken down into various units and every unit is validated to ascertain whether it is working as expected.

In this manner, bugs can be detected early in the development process and thus get fixed. Developers will also know the working of each unit, which in turn helps them make modifications faster.

What is functional testing?

It is a testing method where a software system or application is validated to ascertain whether the software is built according to the functional requirements. Each function is verified to know whether it works against the functional specifications or requirements. The software application’s functionality is tested by providing appropriate input and ascertaining whether the output is as expected.

Those defects are found in the system that has been missed by the developers in the application development process. Specific information pertaining to the quality of the output data is provided. 

In the following parts, we will examine the distinctions and recommended practices for comparing Unit testing vs Functional testing in order to better comprehend the two.


Unit Testing

Unit testing vs Functional testing:

Unit testing

Functional testing

The individual modules are verified to know whether they are working as expected

The functionalities of the software application are verified to know whether they are working as expected

Developers are involved in writing unit tests

Testing team is involved in writing functional tests

White box testing approach is used

Black box testing approach is used

Early bugs/problems are detected by this testing method in the code

Defects are detected in the functionality part of the application and then fixed

The cost of performing and maintaining unit tests is low

The cost of performing and maintaining integration tests is high

Test cases are higher in number when compared to functional testing

Test cases are lower in number when compared to unit testing

It is quite faster than functional testing

It is slow and quite complicated 

 

Location: Ontario, Canada

Comments

Post a Comment

Popular posts from this blog

Integration Testing vs Unit Testing: Understanding the Differences

Image
Unit testing and integration testing are two of the most important types of software testing. Unit testing is the first testing phase in the software development process and then integration testing is performed. Knowing the role of integration testing vs unit testing along with its key differences will help the team to conduct both these testing types optimally. In this article, you will get to know the differences between unit testing and integration testing. What is unit testing? A small piece of code known as a “unit” is tested to know, whether it is working as expected. The objective of unit testing is to ensure that the cost of bug fixes is reduced. This in turn helps in identifying bugs and issues in the early stages of the software development process, as unit testing is the first testing phase of the Software Testing Life Cycle (STLC) process. Developers are responsible for conducting unit testing. The internal design of the software is worked upon by the unit testing fr...
Read more