rspec users - Feb 2011 - object_instance.reload and print out a message placed in the model

I''m trying to test this with Ruby 1.9.2, RSpec 2.5.0, and Rails 3.0.4:

  context "toggle_resource method" do
    it "should remove the resource from the group" do
      group = Factory(:unique_group)
      user = Factory(:unique_user, :account => group.account)

      group.add_resource(user)
      group.reload
      group.should have(1).users
      
      group.toggle_resource(user)
      group.reload
      group.should have(0).users
    end
  end

and I had to add ''group.reload'' in order to make this thing
work. I would
appreciate if anyone could explain to me why do I need to do it, and why I 
can''t see a message that it''s in the model, something like the
following:

  def add_resource(resource)
    p "HEY"
    GroupResource.create(:resource => resource, :group => self)
  end

The message "HEY" doesn''t appear in the console after running
''rspec
spec/models/group_spec.rb''. Thanks in advance.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://rubyforge.org/pipermail/rspec-users/attachments/20110221/9261c264/attachment.html>

On Mon, Feb 21, 2011 at 5:18 AM, Daniel Salmeron Amselem <
daniel.amselem at gmail.com> wrote:
> I''m trying to test this with Ruby 1.9.2, RSpec 2.5.0, and Rails
3.0.4:
>
>   context "toggle_resource method" do
>     it "should remove the resource from the group" do
>       group = Factory(:unique_group)
>       user = Factory(:unique_user, :account => group.account)
>
>       group.add_resource(user)
>       group.reload
>       group.should have(1).users
>
>       group.toggle_resource(user)
>       group.reload
>       group.should have(0).users
>     end
>   end
>
> and I had to add ''group.reload'' in order to make this
thing work. I would
> appreciate if anyone could explain to me why do I need to do it, and why I
> can''t see a message that it''s in the model, something
like the following:
>
>   def add_resource(resource)
>     p "HEY"
>     GroupResource.create(:resource => resource, :group => self)
>   end
>
> The message "HEY" doesn''t appear in the console after
running ''rspec
> spec/models/group_spec.rb''. Thanks in advance.
>
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users


You have to call "reload" to clear activerecord caches. Destroying an
associated record does not affect the cache.

One way you could write your spec is like this:

expect { group.add_resource(user) }.to change(group, :users).by(1)
expect { group.toggle_resource(user) }.to change(group, :users).by(-1)

Let us know if that works for you. Thanks.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://rubyforge.org/pipermail/rspec-users/attachments/20110221/9c4473d6/attachment.html>

Thanks, I''ll try that. I just have the feeling ActiveRecord caches are
being
a pain in the ass. For example, the toggle_resource method removes or adds a
resource to a group, and when just after that I check the resources on that
group, I still get the same ones before the toggle_resource method was
called. I had to change "self.resources" to
"self.resources.all" in order to
force Activerecord to update the cache.

Is there any way I can test this weird behavior? I would love if I could
understand better the way ARel works.



On Tue, Feb 22, 2011 at 2:25 AM, Justin Ko <jko170 at gmail.com> wrote:
>
>
> On Mon, Feb 21, 2011 at 5:18 AM, Daniel Salmeron Amselem <
> daniel.amselem at gmail.com> wrote:
>
>> I''m trying to test this with Ruby 1.9.2, RSpec 2.5.0, and
Rails 3.0.4:
>>
>>   context "toggle_resource method" do
>>     it "should remove the resource from the group" do
>>       group = Factory(:unique_group)
>>       user = Factory(:unique_user, :account => group.account)
>>
>>       group.add_resource(user)
>>       group.reload
>>       group.should have(1).users
>>
>>       group.toggle_resource(user)
>>       group.reload
>>       group.should have(0).users
>>     end
>>   end
>>
>> and I had to add ''group.reload'' in order to make this
thing work. I would
>> appreciate if anyone could explain to me why do I need to do it, and
why I
>> can''t see a message that it''s in the model, something
like the following:
>>
>>   def add_resource(resource)
>>     p "HEY"
>>     GroupResource.create(:resource => resource, :group => self)
>>   end
>>
>> The message "HEY" doesn''t appear in the console
after running ''rspec
>> spec/models/group_spec.rb''. Thanks in advance.
>>
>> _______________________________________________
>> rspec-users mailing list
>> rspec-users at rubyforge.org
>> http://rubyforge.org/mailman/listinfo/rspec-users
>
>
>
> You have to call "reload" to clear activerecord caches.
Destroying an
> associated record does not affect the cache.
>
> One way you could write your spec is like this:
>
> expect { group.add_resource(user) }.to change(group, :users).by(1)
> expect { group.toggle_resource(user) }.to change(group, :users).by(-1)
>
> Let us know if that works for you. Thanks.
>
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users
> --
> You received this message because you are subscribed to the Google Groups
> "rspec" group.
> To post to this group, send email to rspec at googlegroups.com.
> To unsubscribe from this group, send email to
> rspec+unsubscribe at googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/rspec?hl=en.
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://rubyforge.org/pipermail/rspec-users/attachments/20110222/a10aa82a/attachment.html>

On Tue, Feb 22, 2011 at 10:08 AM, Daniel Salmer?n Amselem <
daniel.amselem at gmail.com> wrote:
> Thanks, I''ll try that. I just have the feeling ActiveRecord caches
are
> being a pain in the ass. For example, the toggle_resource method removes or
> adds a resource to a group, and when just after that I check the resources
> on that group, I still get the same ones before the toggle_resource method
> was called. I had to change "self.resources" to
"self.resources.all" in
> order to force Activerecord to update the cache.
>
> Is there any way I can test this weird behavior? I would love if I could
> understand better the way ARel works.
>
>
>
> On Tue, Feb 22, 2011 at 2:25 AM, Justin Ko <jko170 at gmail.com>
wrote:
>
>>
>>
>> On Mon, Feb 21, 2011 at 5:18 AM, Daniel Salmeron Amselem <
>> daniel.amselem at gmail.com> wrote:
>>
>>> I''m trying to test this with Ruby 1.9.2, RSpec 2.5.0, and
Rails 3.0.4:
>>>
>>>   context "toggle_resource method" do
>>>     it "should remove the resource from the group" do
>>>       group = Factory(:unique_group)
>>>       user = Factory(:unique_user, :account => group.account)
>>>
>>>       group.add_resource(user)
>>>       group.reload
>>>       group.should have(1).users
>>>
>>>       group.toggle_resource(user)
>>>       group.reload
>>>       group.should have(0).users
>>>     end
>>>   end
>>>
>>> and I had to add ''group.reload'' in order to make
this thing work. I would
>>> appreciate if anyone could explain to me why do I need to do it,
and why I
>>> can''t see a message that it''s in the model,
something like the following:
>>>
>>>   def add_resource(resource)
>>>     p "HEY"
>>>     GroupResource.create(:resource => resource, :group =>
self)
>>>   end
>>>
>>> The message "HEY" doesn''t appear in the console
after running ''rspec
>>> spec/models/group_spec.rb''. Thanks in advance.
>>>
>>> _______________________________________________
>>> rspec-users mailing list
>>> rspec-users at rubyforge.org
>>> http://rubyforge.org/mailman/listinfo/rspec-users
>>
>>
>>
>> You have to call "reload" to clear activerecord caches.
Destroying an
>> associated record does not affect the cache.
>>
>> One way you could write your spec is like this:
>>
>> expect { group.add_resource(user) }.to change(group, :users).by(1)
>> expect { group.toggle_resource(user) }.to change(group, :users).by(-1)
>>
>> Let us know if that works for you. Thanks.
>>
>> _______________________________________________
>> rspec-users mailing list
>> rspec-users at rubyforge.org
>> http://rubyforge.org/mailman/listinfo/rspec-users
>> --
>> You received this message because you are subscribed to the Google
Groups
>> "rspec" group.
>> To post to this group, send email to rspec at googlegroups.com.
>> To unsubscribe from this group, send email to
>> rspec+unsubscribe at googlegroups.com.
>> For more options, visit this group at
>> http://groups.google.com/group/rspec?hl=en.
>>
>>
>>
>
You can call "self.resources.reload" rather than
"self.resources.all". As
far testing those methods, the "expect { }.to change().by()"
functionality
should do the trick. Let us know if it works or not.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://rubyforge.org/pipermail/rspec-users/attachments/20110222/80911841/attachment-0001.html>

That seems to work Justin, thanks.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://rubyforge.org/pipermail/rspec-users/attachments/20110223/7d77c87e/attachment.html>