From: Eric Hodel <drbrain@...7.net>
Date: 2007-06-09T04:27:29+09:00
Subject: Re: Disadvantages of Dependency Inversion?

On Jun 8, 2007, at 11:55, sweetchuck74@gmail.com wrote:

> Nowadays, DI (Dependency Inversion) is one of the widely used design
> pattern.
> It provides several benefits, such as (1) loose coupling between
> component (2) effective and easy testing (component testing or unit
> testing)
>
> What are the drawbacks or disadvantages of using DI?

Ruby is dynamic enough that you probably don't need it.

I can build a duck-type object for testing very easily.  I can inject  
these duck-type objects into classes that at test-time very easily.   
See the ar_mailer gem for an example.

--
Poor workers blame their tools. Good workers build better tools. The  
best
workers get their tools to do the work for them. -- Syndicate Wars