Introduction to Testing

Testing is a mechanism we use to evaluate whether the software we are developing satisfies the specified requirements. Testing is a very broad subject. Here we'll just look in to some high level overview of what it is.

Types of testing

• Manual testing
• Takes the role of an end user and checks for unexpected behavior 
• There are few levels like unit testing, integration testing, system testing and user acceptance testing
• Uses test plan, test cases or test scenarios to test
• Automation testing
• Also known as Test Automation
• Testers writes scripts and use other software to do testing
• Rerun test scenarios quickly and repeatedly
• Use tools like Selenium, VS Test Professional, IBM Rationale function tester

Testing methods

• Black box 
• Without having any knowledge of interior workings of the application (UI level)
• White box
• Detailed investigation of internal logic
• Grey box
• Testing with limited knowledg