lib/jasmine/headless/task.rb

@@ -42,7 +42,10 @@ module Jasmine
             :jasmine_config => @jasmine_config
           )
         end
-
+        create_rails_compliant_task if defined?(Rails) 
+      end
+      private
+      def create_rails_compliant_task
           if Rails.version >= "3.1.0"
             desc 'Force generate static assets without an MD5 hash, all assets end with -test.<ext>'
             task 'assets:precompile:for_testing' => :environment do

spec/lib/jasmine/headless/task_spec.rb

@@ -0,0 +1,20 @@
+require 'spec_helper'
+require 'fakefs/spec_helpers'
+require 'jasmine/headless/task'
+
+module Jasmine
+  module Headless
+    class Task
+      def desc(block)
+      end
+      def task(block)
+      end
+    end
+  end
+end
+describe Jasmine::Headless::Task do
+  it 'should not explode when Rails is undefined' do
+    Jasmine::Headless::Task.new('jasmine:headless') do |t|
+    end
+  end
+end