Introduction to Software Testing

--> Most software development projects consists of multiple teams, with each team is responsible for developing specific function of a software

--> They work together to create a full software application 

--> Software testing should be a comprehensive process that examines everything from the induvidual functional components to the integrated functional system

1) Unit Testing : 

--> Testing individual functions/ components of an application

--> Performed by a software developer

--> It comes under White Box Testing

--> Testing done at the initial stages of software development

2) Integration Testing:

--> Focus on testing group of software functions of an application

--> Performed by testing teams and development teams

--> It comes under Black Box Testing and White Box Testing

--> Testing done after the Unit Testing

3) Interface Testing: 

--> Interface Testing verifies components/functions connected between software systems and working together

--> Use Case of Interface Testing is verifying the connectivity between Web Server and App Server or App Server and DB Server

--> It comes under Black Box testing

--> Performed by testing teams

--> Done after Integration and Unit Testing

4) System Testing:

--> Focuses on testing whole software application and covers both functional and non-functional testing

--> Done after Integration and Interface testing

--> Performed by testing teams

--> It comes under Black Box testing