Added tests for the install generator.

Gemfile

@@ -10,6 +10,8 @@ group :development, :test do
   gem "rspec",       ">= 2.6.0"
   gem "actionpack",  ">=3.0.0"
   gem "simplecov", :require => false
+
+  gem "generator_spec"
 end
 
 # To use debugger (ruby-debug for Ruby 1.8.7+, ruby-debug19 for Ruby 1.9.2+)

Gemfile.lock

@@ -33,6 +33,9 @@ GEM
     diff-lcs (1.1.2)
     erubis (2.6.6)
       abstract (>= 1.0.0)
+    generator_spec (0.8.3)
+      rails (~> 3.0)
+      rspec-rails
     git (1.2.5)
     i18n (0.5.0)
     jeweler (1.6.2)
@@ -95,6 +98,7 @@ PLATFORMS
 
 DEPENDENCIES
   actionpack (>= 3.0.0)
+  generator_spec
   jeweler
   json_pure
   rails (>= 3.0.0)

lib/generators/cocoon/install/install_generator.rb

@@ -3,16 +3,12 @@ module Cocoon
     class InstallGenerator < ::Rails::Generators::Base
       source_root File.expand_path('../templates', __FILE__)
 
-      if ::Rails::VERSION::MAJOR == 3 && ::Rails::VERSION::MINOR >= 1
-        # for Rails 3.1 no installing is needed anymore, because of the asset pipeline
-        desc "Installing is only needed for rails 3.0.x"
-        def do_nothing
-          puts "Installing is no longer required since Rails 3.1"
-        end
-      else
       desc "This generator installs the javascript needed for cocoon"
       def copy_the_javascript
-          copy_file "../../../app/assets/javascripts/cocoon.js", "public/javascripts/cocoon.js"
+        if ::Rails.version[0..2].to_f >= 3.1
+          puts "Installing is no longer required since Rails 3.1"
+        else
+          copy_file "../../../../../app/assets/javascripts/cocoon.js", "public/javascripts/cocoon.js"
         end
       end
 

spec/generators/install_generator_spec.rb

@@ -0,0 +1,47 @@
+require 'spec_helper'
+require 'generator_spec/test_case'
+require 'generators/cocoon/install/install_generator'
+
+describe Cocoon::Generators::InstallGenerator do
+  include GeneratorSpec::TestCase
+
+  destination File.expand_path("../../tmp", __FILE__)
+
+  context "in rails 3.0" do
+    context "with no arguments" do
+      before(:all) do
+        ::Rails.stub(:version) { '3.0.8' }
+        prepare_destination
+        run_generator
+      end
+
+      it "stubs the version correctly" do
+        Rails.version[0..2].should == "3.0"
+      end
+
+      it "stubs the version correctly" do
+        test_version = (Rails.version[0..2].to_f >= 3.1)
+        test_version.should be_false
+      end
+
+      it "copies cocoon.js to the correct folder" do
+        assert_file "public/javascripts/cocoon.js"
+      end
+    end
+  end
+
+  context "in rails 3.1" do
+    context "with no arguments" do
+      before(:all) do
+        ::Rails.stub(:version) { '3.1.0' }
+        prepare_destination
+        run_generator
+      end
+
+      it "does not copy cocoon.js" do
+        assert_no_file "public/javascripts/cocoon.js"
+      end
+    end
+  end
+
+end