Rakefile

require 'bundler/gem_tasks'
require 'rspec/core/rake_task'

desc 'Default: run specs.'
task :default => :spec

desc 'Run specs'
RSpec::Core::RakeTask.new do |t|
  t.pattern = './spec/**/*_spec.rb' # don't need this, it's default.
  # Put spec opts in a file named .rspec in root
end

desc 'Generate code coverage'
RSpec::Core::RakeTask.new(:coverage) do |t|
  t.pattern = './spec/**/*_spec.rb' # don't need this, it's default.
  t.rcov = true
  t.rcov_opts = ['--exclude', 'spec']
end