C# “internal” access modifier when doing unit testing

General Tech QA/Testing 2 years ago

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Posted on 16 Aug 2022, this text provides information on QA/Testing related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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manpreet Tuteehub forum best answer Best Answer 2 years ago

I'm new in unit testing and I'm trying to figure out if I should start using more of 'internal' access modifier. I know that if we use 'internal' and set the assembly variable 'InternalsVisibleTo', we can test functions that we don't want to declare public from the testing project. This makes me think that I should just always use 'internal' because at least each project (should?) has it's own testing project. Can you guys tell me a reason why I shouldn't do this? When should I use 'private'?

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manpreet 2 years ago

Internal classes need to be tested and there is an assemby attribute:

using System.Runtime.CompilerServices;

[assembly:InternalsVisibleTo("MyTests")]

Add this to the project info file, e.g. Properties\AssemblyInfo.cs.


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