add a Rakefile to structure test runs

Having a Rakefile will allow us to change the actual test commands on
our side rather than relying on changes to the openstack-infra
repository. This should make it a lot faster to change things, but also
easier to test since the jenkins jobs are actually run in this
repository, not the openstack-infra one.

This commit defines the jobs we previously had defined in Jenkins and
uses 'high-level' naming consistently (i.e. lint, style vs. foodcritic,
rubocop).

There is also a :clean task to help with deleting the files generated by
the other jobs.

Also changed foodcritic to run on the source cookbook rather than the
one installed by berks, see
e.g. https://github.com/berkshelf/berkshelf/issues/931#issuecomment-29668369

Change-Id: Iccc37e0fd46323f1f19bee32bda0a7a3ee8c3974
blueprint: rakefile

.gitignore

@@ -1,5 +1,5 @@
 .bundle/
-.cookbooks/
+berks-cookbooks/
 .kitchen/
 .vagrant/
 .coverage/

.rubocop.yml

@@ -13,6 +13,7 @@ Encoding:
   Exclude:
     - metadata.rb
     - Gemfile
+    - berks-cookbooks/**
 
 NumericLiterals:
   Enabled: false

Gemfile

@@ -8,3 +8,4 @@ gem 'chefspec', '~> 4.0.0'
 gem 'rspec', '~> 3.0.0'
 gem 'foodcritic', '~> 3.0.3'
 gem 'rubocop', '~> 0.18.1'
+gem 'rake', '~> 10.0'

Rakefile

@@ -0,0 +1,33 @@
+task default: ["test"]
+
+task :test => [:lint, :style, :unit]
+
+task :bundler_prep do
+  mkdir_p '.bundle'
+  sh %{bundle install --path=.bundle --jobs 1 --retry 3 --verbose}
+end
+
+task :berks_prep => :bundler_prep do
+  sh %{bundle exec berks vendor}
+end
+
+task :lint => :bundler_prep do
+  sh %{bundle exec foodcritic --epic-fail any --tags ~FC003 --tags ~FC023 .}
+end
+
+task :style => :bundler_prep do
+  sh %{bundle exec rubocop}
+end
+
+task :unit => :berks_prep do
+  sh %{bundle exec rspec --format documentation}
+end
+
+task :clean do
+  rm_rf [
+    '.bundle',
+    'berks-cookbooks',
+    'Gemfile.lock',
+    'Berksfile.lock'
+  ]
+end

TESTING.md

@@ -1,18 +1,18 @@
 # Testing the Cookbook #
 
-This cookbook uses [bundler](http://gembundler.com/) and [berkshelf](http://berkshelf.com/) to isolate dependencies.
+This cookbook uses [bundler](http://gembundler.com/) and [berkshelf](http://berkshelf.com/) to isolate dependencies. Make sure you have `ruby 1.9.x`, `bundler`, `rake`, build essentials and the header files for `gecode` installed before continuing. Make sure that you're using gecode version 3. More info [here](https://github.com/opscode/dep-selector-libgecode/tree/0bad63fea305ede624c58506423ced697dd2545e#using-a-system-gecode-instead).
 
-To setup the dependencies:
+We have three test suites which you can run individually (there are three rake tasks):
 
-    $ bundle install --path=.bundle # install gem dependencies
-    $ bundle exec berks vendor .cookbooks # install cookbook dependencies and create the folder .cookbooks
+    $ rake lint
+    $ rake style
+    $ rake unit
 
-To run the tests:
+or altogether:
 
-    $ export COOKBOOK='openstack-network'
-    $ bundle exec foodcritic -f any -t ~FC003 -t ~FC023 .cookbooks/$COOKBOOK
-    $ bundle exec rubocop .cookbooks/$COOKBOOK
-    $ bundle exec rspec --format documentation .cookbooks/$COOKBOOK/spec
+    $ rake test
+
+The `rake` tasks will take care of installing the needed gem dependencies and cookbooks with `berkshelf`.
 
 ## Rubocop  ##