An auto-mocking IoC container for Moq
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README.md

Moq.AutoMock Build statusNuGet Status

An automocking container for Moq. Use this if you're invested in your IoC container and want to decouple your unit tests from changes to their constructor arguments.

Usage

Simplest usage is to build an instance that you can unit test.

var mocker = new AutoMocker();
var car = mocker.CreateInstance<Car>();

car.DriveTrain.ShouldNotBeNull();
car.DriveTrain.ShouldImplement<IDriveTrain>();
Mock<IDriveTrain> mock = Mock.Get(car.DriveTrain);

If you have a special instance that you need to use, you can register it with .Use(...). This is very similar to registrations in a regular IoC container (i.e. For<IService>().Use(x) in StructureMap).

var mocker = new AutoMocker();

mocker.Use<IDriveTrain>(new DriveTrain());
// OR, setup a Mock
mocker.Use<IDriveTrain>(x => x.Shaft.Length == 5);

var car = mocker.CreateInstance<Car>();

Extracting Mocks

At some point you might need to get to a mock that was auto-generated. For this, use the .Get<>() or .GetMock<>() methods.

var mocker = new AutoMocker();

// Let's say you have a setup that needs verifying
mocker.Use<IDriveTrain>(x => x.Accelerate(42) == true);

var car = mocker.CreateInstance<Car>();
car.Accelerate(42);

// Then extract & verify
var driveTrainMock = mocker.GetMock<IDriveTrain>();
driveTrainMock.VerifyAll();

Alternately, there's an even faster way to verify all mocks in the container:

var mocker = new AutoMocker();
mocker.Use<IDriveTrain>(x => x.Accelerate(42) == true);

var car = mocker.CreateInstance<Car>();
car.Accelerate(42);

// This method verifies all mocks in the container
mocker.VerifyAll();