How to declare a variable shared between examples in RSpec?

Question

Suppose I have the following spec:

...
describe Thing do

  it \'can read data\' do
     @data = get_data_from_file  # [ \'42\', \'36\' ]
     expect(@data.count         


        

Answer 1

This is really the purpose of the RSpec let helper which allows you to do this with your code:

...
describe Thing do
  let(:data) { get_data_from_file }

  it 'can read data' do
     expect(data.count).to eq 2
  end

  it 'can process data' do
     expect(data[0].to_i).to eq 42
  end

end
...