Problems using config.extend(Macro)

Testing RSpec
1

Happy New Year everyone!!

I’m having a painful upgrade from Rails 2.3.11 to Rails 3.1.3 and one of
the problems is with the following…

Under Ruby 1.8.7 - Rails 2.3.11 - Rspec 1:

I have model_macros.rb under spec/spec_helpers and it runs beautifully.

Dir[File.expand_path(File.join(File.dirname(FILE), ‘spec_helpers’,
‘**’, ‘*.rb’))].each { require f }
config.extend(ModelMacros, :type => :model)

Exactly the same code under Ruby 1.9.2 - Rails 3.1.3 - Rspec 2 gives me
…
uninitialized constant ModelMacros (NameError)

Dir[Rails.root.join(“spec/spec_helpers/**/*.rb”)].each {|f| require f}
config.extend(ModelMacros, :type => :model)

… which makes sense as it’s missing the namespace (but how did it run
under 2.3.11. Is Ruby 1.8.7 more lenient? - I doubt it)

So I added the namespace and I got rid of that error

config.extend(SpecHelpers::ModelMacros, :type => :model)

But sadly the methods that are called from within the model specs are
unable to be found… Exception encountered: #<NoMethodError:
undefined
method `it_should_require_attributes’

This is only solved by including extend SpecHelpers::ModelMacros in the
model spec file. Not what I want.

Is there something I am missing while migrating all my code? Is there
some
really basic Ruby thing I have forgotten to do to get this module
included?

I also tried config.include(SpecHelpers::ModelMacros, :type => :model)
but
to no avail.

Any help would be great, thank you.

-ants

2

On Jan 10, 2012, at 7:21 AM, Ants P. wrote:

config.extend(ModelMacros, :type => :model)

… which makes sense as it’s missing the namespace (but how did it run under
2.3.11. Is Ruby 1.8.7 more lenient? - I doubt it)

That would make sense if Rails was autoloading (implicit) this, but it’s
not - spec_helper.rb is loading it explicitly. I think the namespace
thing is a red herring.

So I added the namespace and I got rid of that error

config.extend(SpecHelpers::ModelMacros, :type => :model)

But sadly the methods that are called from within the model specs are unable to
be found… Exception encountered: #<NoMethodError: undefined method
`it_should_require_attributes’

This is only solved by including extend SpecHelpers::ModelMacros in the model
spec file. Not what I want.

Which suggests that the config is being silently ignored, even though
the loading is working.

Is there something I am missing while migrating all my code? Is there some
really basic Ruby thing I have forgotten to do to get this module included?

I also tried config.include(SpecHelpers::ModelMacros, :type => :model) but to no
avail.

That would never have worked under any version because “include” exposes
methods to the example scope, not the group scope:

describe “something” do

methods in modules added using extend are available here

it “does something” do
# methods in modules added using include are available here
end
end

Any help would be great, thank you.

My best guess is that you don’t need the namespace, and you should leave
Rails out of loading this. Try this:

Dir[“spec_helpers/**/*.rb”].each {|f| require f}
RSpec.configure do |config|
config.extend(ModelMacros, :type => :model)
end

That should work to load the file, since RSpec adds"./spec" to the
$LOAD_PATH.

If that doesn’t work, it might be that “:type => :model” isn’t working
correctly, so try “path => /spec/model/” instead. Please report back
and let us know which, if either, works for you.

HTH,
David

3

On 10 January 2012 14:56, David C. [email protected] wrote:

Exactly the same code under Ruby 1.9.2 - Rails 3.1.3 - Rspec 2 gives me
is a red herring.
model spec file. Not what I want.

Any help would be great, thank you.
$LOAD_PATH.
http://rubyforge.org/mailman/listinfo/rspec-users

Hey David, thanks for the reply.

Sadly nothing worked and here are my results

With …
Dir[“spec_helpers/**/*.rb”].each {|f| puts “loading … #{f}”; require
f}

I didn’t find any file to load and got the following error…

/home/anthony/Development/websites/ruby/GMFT/spec/spec_helper.rb:84:in
`block in <top (required)>': uninitialized constant ModelMacros
(NameError)

With …
Dir[“spec/spec_helpers/**/*.rb”].each {|f| puts “loading … #{f}”;
require
f}

I found a file to load but require couldn’t find it …

loading … spec/spec_helpers/model_macros.rb
/home/anthony/.rvm/gems/ruby-1.9.2-p290@gmft313/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in
`require’: no such file to load – spec/spec_helpers/model_macros.rb
(LoadError)

With …
Dir[Rails.root.join(“spec/spec_helpers/**/*.rb”)].each {|f| puts
“loading
… #{f}”; require f}

I found a file to load, apparently it loaded it but then the
ModelMacros#method could not be found…

loading …
/home/anthony/Development/websites/ruby/GMFT/spec/spec_helpers/model_macros.rb
/home/anthony/Development/websites/ruby/GMFT/spec/model/event_group_spec.rb:27:in
block in <top (required)>': undefined method it_should_require_attributes’ for #Class:0xd25d5fc (NoMethodError

I also tried with :path in the third example but nada.

I’ve also tried all of the above running rspec 2.7.0 and rspec-rails
2.7.0.
No joy.

It must be something I’m doing wrong. But what?!!!

-ants

4

On Tue, Jan 10, 2012 at 10:30 AM, Ants P. [email protected]
wrote:

Dir[File.expand_path(File.join(File.dirname(FILE), ‘spec_helpers’,
under 2.3.11. Is Ruby 1.8.7 more lenient? - I doubt it)
unable to be found… Exception encountered: #<NoMethodError: undefined
included?

methods in modules added using include are available here

config.extend(ModelMacros, :type => :model)
David
With …

I’ve also tried all of the above running rspec 2.7.0 and rspec-rails 2.7.0.
No joy.

It must be something I’m doing wrong. But what?!!!

What’s in model_macros.rb?

5

On 10 January 2012 18:29, David C. [email protected] wrote:

I have model_macros.rb under spec/spec_helpers and it runs
Dir[Rails.root.join(“spec/spec_helpers/**/*.rb”)].each {|f| require f}

the

I also tried config.include(SpecHelpers::ModelMacros, :type => :model)
end

Dir[“spec_helpers//*.rb"].each {|f| puts “loading … #{f}”; require f}
f}
Dir[Rails.root.join("spec/spec_helpers//*.rb”)].each {|f| puts "loading
`block in <top (required)>': undefined method

What’s in model_macros.rb?

rspec-users mailing list
[email protected]
http://rubyforge.org/mailman/listinfo/rspec-users

David,

I set an instance variable @dut (domain under test) in a before block
in
the spec and use it in the macro. I don’t know if this is the best way
but
I’m not an expert Ruby programmer.

before(:each) do
@event_group = Factory.build(:event_group)
@dut = @event_group
end

and an example call in the spec

it_should_require_attributes :name, :created_by

Here are just a few methods from the macro …

module ModelMacros

dut - Domain Under Test

aut - Attribute Under Test

def it_should_require_attributes(*attrs)
attrs.each { |attr| it_should_require_attribute(attr) }
end

def it_should_not_require_attributes(*attrs)
attrs.each { |attr| it_should_not_require_attribute(attr) }
end

def it_should_require_attribute(aut)
it “is not valid with missing #{aut}” do
@dut.send(“#{aut}=”, nil)
@dut.should_not be_valid
@dut.should have(1).error_on(aut.to_sym)
end
end

def it_should_not_require_attribute(aut)
it “is valid with missing #{aut}” do
@dut.send(“#{aut}=”, nil)
@dut.should be_valid
end
end
end

I hope this helps. I’m really racking my brains but I just can’t think
of
anything.

-ants