Importance of Unit Testing

Unit Testing has always been a neglected area in many software companies. But it carries a lot of importance as the cost of fixing the defect in Unit testing phase is always the least or negligible. Like any other levels of testing, it also focusses on both black box and White box testing techniques. Blackbox testing involves techniques like Boundary Value Analysis and Equivalence partitioning. And whitebox testing involves techniques like Loop coverage,path coverage,condition coverage and Error guessing etc. An improvized and structured unit testing can identify lot of defects in the early phase of SDLC and can save lot of revenue for the organization.