Indexer Impersonation

Creating an imposter

Use the generated imposter type for your indexer-bearing interface or class and obtain the configured instance:

Example

[assembly: GenerateImposter(typeof(IMyServiceSut))]

public interface IMyServiceSut
{
    int this[int key1] { get; set; }
}

Getter

Example

var imposter = IMyServiceSut.Imposter();
imposter[Arg<int>.Is(k => k > 0)].Getter().Returns(10);

var service = imposter.Instance();
var value = service[123]; // 10

Setter

Example

// Observe writes
imposter[Arg<int>.Any()].Setter().Callback((key, value) => 
        { 
            // value is 50
        });

var service = imposter.Instance();
service[42] = 50;