Load dummy environment in specs and dummy tasks in Rakefile

Rakefile

@@ -1 +1,9 @@
 require "bundler/gem_tasks"
+
+APP_RAKEFILE = File.expand_path("../spec/dummy/Rakefile", __FILE__)
+load 'rails/tasks/engine.rake'
+
+desc "Run all specs in spec directory (excluding plugin specs)"
+RSpec::Core::RakeTask.new(:spec => 'app:db:test:prepare')
+
+task :default => :spec

spec/spec_helper.rb

@@ -1,5 +1,5 @@
-require "rubygems"
-require "bundler/setup"
+ENV["RAILS_ENV"] ||= "test"
+require File.expand_path("../dummy/config/environment.rb",  __FILE__)
 
 require 'two_factor_authentication'