Sample code for https://twitter.com/tarot/status/668986347739156480

sample_spec.rb

describe 'test' do
  example do
    x = [{id: 1, name: 'hoge'}, {id: 2, name: 'fuga'}]
    expect(x).to a_collection_including a_hash_including(id: 2), a_hash_including(id: 1)
  end
end