rspec users - Jun 2010 - accessing constants from another module within examples

Hello.

I wanted to include module into ExampleGroup to write less code within
examples, but was unable to do so. This seems to be strange, because
in regular Class it works and all methods within that module are also
accessible. See the example:

module MyModule
  MyConstant = 1

  def my_method
    2
  end
end

describe "including modules" do
  include MyModule

  it "works" do
    my_method.should == 2
    MyModule::MyConstant.should == 1
  end

  it "doesn''t work" do
    MyConstant.should == 1
  end
end

Running this simple spec will produce one failure with this message:
1)
NameError in ''including modules doesn''t work''
uninitialized constant MyConstant

Is this an expected behaviour? Is there some other way to access
constants from another module without specifying module name within
examples?

Best Regards,
Jarmo

On 16 Jun 2010, at 15:11, Jarmo Pertman wrote:
> Hello.
> 
> I wanted to include module into ExampleGroup to write less code within
> examples, but was unable to do so. This seems to be strange, because
> in regular Class it works and all methods within that module are also
> accessible. See the example:
> 
> module MyModule
>  MyConstant = 1
> 
>  def my_method
>    2
>  end
> end
> 
> describe "including modules" do
>  include MyModule
> 
>  it "works" do
>    my_method.should == 2
>    MyModule::MyConstant.should == 1
>  end
> 
>  it "doesn''t work" do
>    MyConstant.should == 1
>  end
> end
> 
> Running this simple spec will produce one failure with this message:
> 1)
> NameError in ''including modules doesn''t work''
> uninitialized constant MyConstant
> 
> Is this an expected behaviour? Is there some other way to access
> constants from another module without specifying module name within
> examples?
That wouldn''t work in regular ruby either. You need to run the describe
block inside the module / namespace.
> 
> Best Regards,
> Jarmo
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users

On Jun 16, 2010, at 9:11 AM, Jarmo Pertman wrote:
> Hello.
> 
> I wanted to include module into ExampleGroup to write less code within
> examples, but was unable to do so. This seems to be strange, because
> in regular Class it works and all methods within that module are also
> accessible. See the example:
> 
> module MyModule
>  MyConstant = 1
> 
>  def my_method
>    2
>  end
> end
> 
> describe "including modules" do
>  include MyModule
> 
>  it "works" do
>    my_method.should == 2
>    MyModule::MyConstant.should == 1
>  end
> 
>  it "doesn''t work" do
>    MyConstant.should == 1
>  end
> end
> 
> Running this simple spec will produce one failure with this message:
> 1)
> NameError in ''including modules doesn''t work''
> uninitialized constant MyConstant
> 
> Is this an expected behaviour? Is there some other way to access
> constants from another module without specifying module name within
> examples?
Seems like a bug. Please submit it to http://github.com/rspec/rspec-core/issues
for rspec-2, http://rspec.lighthouseapp.com to make sure it gets backported to
rspec-1.

Thx,
David

Why do you think that it''s not working in regular Ruby either?

Check the following example to see that it does:
module MyModule
  MyConstant = 1
  def my_method
    2
  end
end

class MyClass
  include MyModule

  def initialize
    p my_method
    p MyModule::MyConstant
    p MyConstant
  end
end

MyClass.new

Jarmo

On Jun 16, 5:20?pm, Matt Wynne <m... at mattwynne.net>
wrote:
> That wouldn''t work in regular ruby either. You need to run the
describe block inside the module / namespace.

Done!

Jarmo

On Jun 16, 5:22?pm, David Chelimsky <dchelim... at gmail.com>
wrote:
> Seems like a bug. Please submit it
tohttp://github.com/rspec/rspec-core/issuesfor
rspec-2,http://rspec.lighthouseapp.comto make sure it gets backported to
rspec-1.
>
> Thx,
> David

On 16 Jun 2010, at 15:20, Matt Wynne wrote:
> 
> On 16 Jun 2010, at 15:11, Jarmo Pertman wrote:
> 
>> Hello.
>> 
>> I wanted to include module into ExampleGroup to write less code within
>> examples, but was unable to do so. This seems to be strange, because
>> in regular Class it works and all methods within that module are also
>> accessible. See the example:
>> 
>> module MyModule
>> MyConstant = 1
>> 
>> def my_method
>>   2
>> end
>> end
>> 
>> describe "including modules" do
>> include MyModule
>> 
>> it "works" do
>>   my_method.should == 2
>>   MyModule::MyConstant.should == 1
>> end
>> 
>> it "doesn''t work" do
>>   MyConstant.should == 1
>> end
>> end
>> 
>> Running this simple spec will produce one failure with this message:
>> 1)
>> NameError in ''including modules doesn''t
work''
>> uninitialized constant MyConstant
>> 
>> Is this an expected behaviour? Is there some other way to access
>> constants from another module without specifying module name within
>> examples?
> 
> That wouldn''t work in regular ruby either. You need to run the
describe block inside the module / namespace.
I stand corrected. It absolutely does work. Sorry for the duff information.
> 
>> 
>> Best Regards,
>> Jarmo
>> _______________________________________________
>> rspec-users mailing list
>> rspec-users at rubyforge.org
>> http://rubyforge.org/mailman/listinfo/rspec-users
> 
> _______________________________________________
> rspec-users mailing list
> rspec-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/rspec-users