Question

What is mean by Widget testing in Flutter?

Answer 1

Flutter supports three types of tests:

• Unit tests: Using unit testing, you can test a class or method. Unit tests do not check for rendering to screen, interacting with external services, or user interactions.   
• Widget tests: Using widget testing, you can test a single widget.  This ensures that the widget's UI looks as expected and responds appropriately to events. In other words, it ensures that the widget design, rendering, and interaction with other widgets are up to the mark.   
• Integration tests:  Using Integration testing, you can test the critical flows of the entire app. It is important to check whether all widgets and services work together as expected. You can also use it to measure and benchmark the performance of your app.