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import { Head } from 'mdx-deck' import { CodeSurfer } from "mdx-deck-code-surfer"

export { future as theme } from 'mdx-deck/themes'

<title>Unit Testing</title>

'Unit' Testing with .Net ✅

Architecture

Being able to correctly unit test your applications implies that your app is set up a certain way. If it isn't, then it immediately becomes much more difficult to actually write unit tests.

What is Needed

  • Dependency Injection / IoC (Inversion of Control)
  • Mocking library (Moq)
  • Test Running framework (MSTest, NUnit, XUnit, etc)

Why are they needed? 🤔

Dependency Injection

  • Inject important objects
  • Better mocking
  • Also makes code not in unit tests better

Mocking Library

  • Less manual configuration
  • Only test objects/methods that need to be tested

Test Running Framework

  • Can't run the tests you write if you don't have one!

Setup

The code for this project is an ASP.NET Web API 2.2 project, which is a .NET Framework 4.5+ web application.

It supplies a RESTful web service that serves json data.

NuGet Packages

  • DI/IoC -> AutoFac
  • Mocking Library -> Moq
  • Test Runner -> MSTest

Alternative DI/IoC

List of alternatives from Scott Hanselman https://bit.ly/2Esv9bq

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<CodeSurfer title="Global.asax.cs" code={require("!raw-loader!./snippets/Global.asax.cs")} lang="clike" showNumbers={true} dark={false} steps={[ {}, { lines: [5]} ]} />

<CodeSurfer title="AutoMapper" code={require("!raw-loader!./snippets/AutoMapper.cs")} lang="clike" showNumbers={false} dark={false} steps={[ {}, { range: [1, 17]}, { range: [19, 76] } ]} />

Adding a Test Project

  • Right-click Solution ▶️ Add New Project ▶️ Visual C# ️️▶️ Test ▶️ MSTest Test Project.
  • Name it similar to your main project/solution, but append .Tests at the end
  • Add A reference to your main project
  • Add Moq NuGet Package
  • Add other (service) references your code may use (ie. web service)

<CodeSurfer code={require("!raw-loader!./snippets/ExControllerTests.cs")} lang="clike" showNumbers={false} dark={false} steps={[ {}, { range: [14, 27] }, { range: [29, 38] }, { range: [41, 72] }, ]} />

Lets take a look at the actual project 😃

This presentation was built with MDX - deck

https://github.com/jxnblk/mdx-deck