Running groups of specs in subdirs of the spec/ dir

Rakefile

desc "Run both API v2 and v3 specs"
task :api => [:apiv2, :apiv3]

desc "Run only API v2 specs"
RSpec::Core::RakeTask.new(:apiv2) do |task|
    task.pattern = 'spec/v2/*_spec.rb'
    task.rspec_opts = "--format progress --fail-fast"
end

desc "Run only API v3 + Webhooks specs"
RSpec::Core::RakeTask.new(:apiv3) do |task|
    task.pattern = 'spec/v3/*_spec.rb'
    task.rspec_opts = "--format progress --fail-fast"
end