Stub IO.read

gistfile1.rb

require 'spec_helper'

describe KnifeCookbookDoc::AttributesModel do
  describe '#load_descriptions' do
    before do
      allow(IO).to receive(:read).with('attributes/default.rb').and_return(attributes)
    end
    let(:attributes) {
<<EOS
#<> Single line comment
default['knife_cookbook_doc']['attr1'] = 'attr1'

#<
# Multiline comment with single line of text
#>

=begin
#<
Multiline begin/end with single line of text
#>
EOS
    }
  end
  subject { IO.read('attributes/default.rb') }

  it { is_expected.to match /thing/ }
end

---- ERROR: No such file or directory @ rb_sysopen - attributes/default.rb