Improve support for engines

[cupakromer]

This is probably going to be a relatively large task. We've recently had a few issues show up regarding needing improved support for testing engine parts in isolation. While those issues are provided for via a relatively simple module inclusion, general engine support is lacking.

I started to follow the newish Rails Guide: Getting Started with Engines. I followed the tutorial using today's latest stable Rails release (4.1.8). Essentially, right from the beginning RSpec is lagging very far behind 😦. Attempting to run the scaffold generator, bin/rails generate scaffold article title:string text:text, resulted in zero RSpec generated files. 😩 Also, if you do not run the default test-unit process when creating the engine there isn't a clear way on generating another dummy test application.

I'm happy to begin working on making engine author's lives easier. I'm also happy to take patches and PRs / suggestions / advise from the community.

Cheers everyone! 😸

[tvdeyen]

\o/ <3

[mikeastock]

@cupakromer do you have any ideas on where to start?

[cupakromer]

@mikeastock not exactly. I actually need to create an engine based gem at my work. I'm going to use that as a driving force for improving this. I guess I'll just be starting from the basics and trying to get everything setup smoothly. Since I haven't done too much with engines in the past, I'm sure I'll hit many of the standard pain points right out of the gate.

[enricostano]

cool @mikeastock !

I would be glad to help you on this, just ping me if you need it. 😃