Question

What is the purpose of libraries like FakeItEasy? How do they help us write unit test? What prerequisites do they need?

Answer 1

FAKEITEASY:

FakeItEasy can be utilized to mimic the raising of an occasion from a Fake object, accepting the occasion is virtual or abstract,It is compatible with C# and VB.net. We can say it's a mocking framework that works with all types of fake objects.
This tenet of readability serves the initial purpose of FakeItEasy very well which was to be largely a teaching aid, to help introduce people to the concept of mocking. All the fundamental mocking features of FakeItEasy are accessible through the static A type.
it can fake just about anything that could normally be overridden, extended, or implemented like interfaces and classes.
It helps us drive the design of the project and make our solution more component base.
It also helps us to build interface components that support dependency
Generally it helps developers to understand requirements and build component based system.

For first Install - Package FakeItEasy. No configuration is required as it's for C# and VB.net these software should be installed.

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