⌨️ ArrangeContext

⌨️ .NET C#: Simple Tool to automatically initialize your system-under-test with mocked instances.
Inspired by NEdifis and AutoFixture

This'll turn something horrible like this:

var mock1 = new Mock<ISomeService1>();
var mock2 = new Mock<ISomeService2>();
var mock3 = new Mock<ISomeService3>();
var mock4 = new Mock<ISomeService4>();

var systemUnderTest = new SystemUnderTest(mock1, mock2, mock3, mock4);

To an even easier call like:

var systemUnderTest = new ArrangeContext<SystemUnderTest>().Build();

Additionally giving you the extra comfort of not needing to update the test-classes when you add a new parameter to your System-Under-Test:
If you add a new Parameter with ISomeService5 to your SystemUnderTest, in the "default"-approach you'd have to add a new line var mock5 = new Mock<ISomeService5>() to the arrangement of your SystemUnderTest!

🌟 Supported mocking Frameworks

Framework
Moq
NSubstitute
RhinoMocks
FakeItEasy

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🌐 Features

Creating the Context

var context = new ArrangeContext<YourTestClass>();

Creating the ArrangeContext is just as easy as creating a new class, providing your System-Under-Test with as the generic type-parameter.

Build

context.Build();

This'll build the System-Under-Test with automatically mocked Constructor parameters for you, to run all the test's on this instance.

Retrieving the mocked parameters

var service1 = context.For<IService1>();
var service2 = context.For<IService2>("parameterName");

For<T> and For<T>(string parameterName) are used to retrieve the mocked instances from the ArrangeContext so you can tell them what to do and/or return when specific things are called (depending on the Framework you use obviously!).

Replacing instances

var myInstance1 = new Service1();
var myInstance2 = new Service2();

context.Use<IService1>(myInstance1);
context.Use<IService2>(myInstance2, "parameterName");

You don't like the mocked instance that was created for you? No problem! Using Use<T>() and Use<T>(string parameterName) you can replace any instance on the ArrangeContext that you like!

⌨️ Developing

To develop and work with ArrangeContext you just need to clone this Repo somewhere on your PC and then open the Solution or the complete Source-Folder (under src) with your favorite IDE. No additional tools required.

Before you can start, you should restore all NuGet-Packages using dotnet restore if that's not done for you by your IDE.

👋 Want to Contribute?

Cool! We're always welcoming anyone that wants to contribute to this project! Take a look at the Contributing Guidelines, which helps you get started. You can also look at the Open Issues for getting more info about current or upcoming tasks.

💬 Want to discuss?

If you have any questions, doubts, ideas, problems or you simply want to present your opinions and views, feel free to hop into Discussions and write about what you care about. We'd love to hear from you!