LightInject.Nancy and unit testing

[robertmircea]

What is the recommended way to use Lightinject Nancy when doing testing using Nancy's testing framework? I would like to use a configurable bootstrapper which is not based on TinyIOC but on Lightinject.

For the moment, I am doing this using ConfigurableBootstrapper:

            var bootstraper = new ConfigurableBootstrapper(with =>
                                                           {
                                                               with.Module<ManagementModule>();
                                                               with.Dependency<IUserValidator>(new MockUserValidator());
                                                           });
            var browser = new Browser(bootstraper
                                , defaults: to=> to.Accept("application/json"));

[seesharper]

Let me know if something like this works out for you.

internal class LightInjectConfigurableBootstrapper : LightInjectNancyBootstrapper
{
    private readonly Action<IServiceRegistry> configure;

    public LightInjectConfigurableBootstrapper(Action<IServiceRegistry> configure)
    {
        this.configure = configure;
    }

    protected override IServiceContainer GetServiceContainer()
    {
        var container = base.GetServiceContainer();
        configure(container);
        return container;
    }
}

Then you can use it in your test like this

var bootStrapper = new LightInjectConfigurableBootstrapper(r => r.Register<IUserValidator, MockUserValidator>());

[robertmircea]

It seems there is some logic for testing scenarios in ConfigurableBootstrapper. It does not tries to detect and load all Nancy modules automatically and it will register only the modules specified in the configuration like above:

with.Module<ManagementModule>();

Can I stop the LightInjectConfigurableBootstrapper trying to detect and register in container all modules, IApplicationStartup and IRequestStartup implementing classes? When doing testing for a module, I don't want my entire application bootstrapped.

For example, I have a NewRelicApplicationStartupTask implementing IApplicationStartup. During test it would bad to send metrics to NewRelic :)

[seesharper]

You could try to override the RegisterTypes method.

[robertmircea]

Could you be more specific please? I've overridden RegisterTypes and I haven't provided any implementation. LightInjectNancyBootstrapper is still looking to resolve my IApplicationStartup implementing classes which it detected automatically.