A unit is labeled as the smallest component inside a software, and Unit Testing is described as the testing of those smallest components inside a software. The purpose of Unit Testing is to test every individual component inside the software to make it error-free and defect-less, and thus enable it to function as intended, according to the business and end-user requirements. Wish to learn more about Software Testing and eventually break into this sector? Enroll in Intellipaat’s software testing Courses online, and get started, by watching the following YouTube video on Software Testing Methodologies to get a better understanding.