Functional tests
These tests use the same techniques and tools as unit and integration tests but differ from them in that they are run only at the end of each sprint. They have the fundamental role of verifying that the current version of the entire software complies with its specifications.
Since functional tests also involve the UI, they need further tools to simulate, somehow, how the user acts in the UI. The need for extra tools is not the only challenge the UI brings with it because UIs also see frequent and major changes. Thus, we mustn’t design tests that depend on the UI’s graphical details, or we might be forced to rewrite all the tests completely at each UI change. We will discuss both the tools and the best practices for optimizing UI tests in the Automating functional tests in C# section.
Anyway, it is worth pointing out that sometimes it is better to renounce automated testing for some UI-related features and fall back to manual tests because the...