rspec users - Aug 2011 - How to test modules and custom validators

I''m trying to have most of the important stuff tested and in order to
do
that I run in front of some stuff I''m not quite sure which is the best
way
to test them.
At this time I am having question around how to test modules and the custom
validators (the typical email format validator for example).

To test a module the best I saw up to now was finded here:
http://stackoverflow.com/questions/512466/how-to-implement-an-abstract-class-in-ruby
In the before he creates a new class and import the module to test, Then,
using the class created, he test the module methods.
Is this the recommended way to go?

About testing validators I guess something like what was done with the
models could also work but again not sure if its the way to go or if its
totally wrong.

Some advices on this matters will be really appreciated,

Thanks in advance.
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On Aug 3, 2011, at 11:08 AM, Piter Fcbk wrote:
> I''m trying to have most of the important stuff tested and in order
to do that I run in front of some stuff I''m not quite sure which is the
best way to test them.
> At this time I am having question around how to test modules and the custom
validators (the typical email format validator for example).
> 
> To test a module the best I saw up to now was finded here:
http://stackoverflow.com/questions/512466/how-to-implement-an-abstract-class-in-ruby
> In the before he creates a new class and import the module to test, Then,
using the class created, he test the module methods.
> Is this the recommended way to go?
> 
> About testing validators I guess something like what was done with the
models could also work but again not sure if its the way to go or if its totally
wrong.
> 
> Some advices on this matters will be really appreciated,
> 
> Thanks in advance.
I usually like to do something like:

describe MyModule do
  let(:object) { Class.new { include MyModule } }

  it "does something" do
    object.method_from_my_module.should do_something
  end
end

HTH,
David



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I recently wrote this spec <https://gist.github.com/1126847> for a custom
validator. I hope you find it useful. Feedback welcome.

Craig
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