public void WhenActivationDelegateReturnsNull_ExceptionDescribesLimitType()
{
var target = new DelegateActivator(typeof(string), (c, p) => null);
var ex = Assert.Throws <DependencyResolutionException>(
() => target.ActivateInstance(new ContainerBuilder().Build(), Enumerable.Empty <Parameter>()));
Assert.Contains(typeof(string).ToString(), ex.Message);
}
public void ActivateInstance_ReturnsResultOfInvokingSuppliedDelegate()
{
var instance = new object();
var target =
new DelegateActivator(typeof(object), (c, p) => instance);
Assert.Same(instance, target.ActivateInstance(new ContainerBuilder().Build(), Enumerable.Empty <Parameter>()));
}