Proper or optimized test way within asp.net web api application

Question

We have an asp.net web api application, in which we used this architecture:

Presentation Layer
BLL layer
Dal Layer

We discussed, me and my colleges, about TDD and how can we used it in our project :

My Approach

I see that we have to test the BLL layer by adding full unit tests list, Then we test the presentation layer

Other opinion

We have only to test the services(presentation layer). If a test failed then, we test only the methods(in bll) which have relation with this service

So the discussion is about

Proper vs optimized way

So I need to know

What is the best approach between them?
Can the size and the type of the project interfers in this comparison?

Thanks,

What's wrong with my question to vote to close it!! I don't understand — Lamloumi Afif
– Lamloumi Afif, Commented Apr 25, 2016 at 10:19

alltej · Accepted Answer · 2016-04-28 00:23:50Z

1

In your BL, your DAL should be injected as dependencies and you should be using Dependency Injection container like Unity. The reason being, your unit tests shld have no dependency to databases. When your BL tests are isolated from Databases your tests can run fast too

answered Apr 28, 2016 at 0:23

alltej

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