public void Get_returns_null_when_no_provider_can_fulfil_the_request(IServiceRegistrationProvider[] providers,
ResolutionRequest request)
{
// Arrange
Mock.Get(providers[0]).Setup(x => x.CanFulfilRequest(request)).Returns(false);
Mock.Get(providers[1]).Setup(x => x.CanFulfilRequest(request)).Returns(false);
Mock.Get(providers[2]).Setup(x => x.CanFulfilRequest(request)).Returns(false);
var sut = new StackOfRegistriesRegistrationProvider(providers);
// Act
var result = sut.Get(request);
// Assert
Assert.That(result, Is.Null);
}
public void Get_gets_from_the_first_provider_which_can_fulfil_the_request(IServiceRegistrationProvider[] providers,
ResolutionRequest request,
IServiceRegistration registration)
{
// Arrange
Mock.Get(providers[0]).Setup(x => x.CanFulfilRequest(request)).Returns(false);
Mock.Get(providers[1]).Setup(x => x.CanFulfilRequest(request)).Returns(true);
Mock.Get(providers[1]).Setup(x => x.Get(request)).Returns(registration);
Mock.Get(providers[2]).Setup(x => x.CanFulfilRequest(request)).Returns(false);
var sut = new StackOfRegistriesRegistrationProvider(providers);
// Act
var result = sut.Get(request);
// Assert
Assert.That(result, Is.SameAs(registration));
}
public void Get_only_gets_from_the_first_provider_which_can_fulfil_a_request(IServiceRegistrationProvider[] providers,
ResolutionRequest request,
IServiceRegistration registration)
{
// Arrange
Mock.Get(providers[0]).Setup(x => x.CanFulfilRequest(request)).Returns(false);
Mock.Get(providers[1]).Setup(x => x.CanFulfilRequest(request)).Returns(true);
Mock.Get(providers[1]).Setup(x => x.Get(request)).Returns(registration);
Mock.Get(providers[2]).Setup(x => x.CanFulfilRequest(request)).Returns(true);
Mock.Get(providers[2]).Setup(x => x.Get(request)).Returns(registration);
var sut = new StackOfRegistriesRegistrationProvider(providers);
// Act
var result = sut.Get(request);
// Assert
Mock.Get(providers[1]).Verify(x => x.Get(request), Times.Once);
Mock.Get(providers[2]).Verify(x => x.Get(request), Times.Never);
}