Difference between functional test and end-to-end test

Question

What is the difference between functional test and end-to-end test?

Techopedia says that end-to-end test is

a methodology used to test whethe

Answer 1

I think the definitions of functional and end to end testing could vary based on the context of your project. I have seen different people use these terms to describe different things. That being said, usually this is what the 2 terms mean-

Functional testing - This refers to testing the functionality of system based on the requirements. This usually focuses on different requirements of the system and ensure it is working properly. For example - Logging into an application - could be one requirement and then a person could test this functionality manually or in an automated way. Similarly, adding a product to the cart could be one functionality, then, able to make a payment to purchase a product could be a functionality.

End to end testing - This refers to testing the system based on end to end user flows, instead of testing the system has separate components like in unit testing or story level testing. For example - Logging into the application, then adding a product to the shopping cart, then going to the check out screen and then placing an order and then logging out of the application could be one user flow.