Add test dependencies

.gitignore

@@ -1 +1,2 @@
 /Gemfile.lock
+/tmp/

features/support/env.rb

@@ -0,0 +1 @@
+require 'aruba/cucumber'

producer-core.gemspec

@@ -17,4 +17,9 @@ Gem::Specification.new do |s|
   s.files       = `git ls-files`.split $/
   s.test_files  = s.files.grep /\A(spec|features)\//
   s.executables = s.files.grep(/\Abin\//) { |f| File.basename(f) }
+
+
+  s.add_development_dependency 'rspec'
+  s.add_development_dependency 'cucumber'
+  s.add_development_dependency 'aruba'
 end

spec/spec_helper.rb

@@ -0,0 +1 @@
+require 'producer/core'