[LRUG] How to test a Rails plugin gem against different versions of Rails?

[Anthony Eden]

Andy,

I highly suggest using rvm for managing the current ruby version and gem
sets. It will save you *huge* amounts of time and generally is a pleasure to
use.

-Anthony

On Tue, Oct 12, 2010 at 2:29 PM, Andrew Stewart
<boss at airbladesoftware.com>wrote:

> Hola El Rug,
>
> I would like to test my gem, which is a Rails plugin, against specific
> versions of Rails (e.g. 2.3.8 and 3.0.0).  Before I installed Rails 3 I
> could run `rake test` successfully.  Now, however, rake fails because it
> wants to activate different versions of actionpack:
>
> http://gist.github.com/622093
>
> You can reproduce this problem, if you have both Rails 3.0.0 and 2.3.8
> installed, like this:
>
>    $ git clone git://github.com/airblade/paper_trail.git
>    $ cd paper_trail
>    $ rake test
>
> What changes do I need to make to my gemspec/Rakefile/test_helper to be
> able to `rake test` against a specific version of Rails?  And should I be
> specifying my dependencies with Bundler instead?
>
> Here's the code itself: http://github.com/airblade/paper_trail
>
> Many thanks.
>
> Cheers,
>
> Andy Stewart
> -------
> http://airbladesoftware.com
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