```ruby
require 'spec_helper'

describe RsrGroup::Catalog do

  let(:sample_dir) { File.expand_path(File.join(Dir.pwd, 'spec', 'samples')) }
  let(:ftp) { instance_double('Net::FTP', :passive= => true, :debug_mode= => true) }
  let(:credentials) { { username: 'login', password: 'password' } }

  before do
    allow(Net::FTP).to receive(:open).with('ftp.host.com', 'login', 'password') { |&block| block.call(ftp) }
  end

  describe '.all' do
    let(:sample_file) { File.new(File.join(sample_dir, 'rsrinventory-new.txt')) }

    before do
      allow(ftp).to receive(:nlst) { ['ftpdownloads'] }
      allow(ftp).to receive(:chdir).with('ftpdownloads') { true }
      allow(ftp).to receive(:getbinaryfile) { nil }
      allow(ftp).to receive(:close) { nil }
      allow(Tempfile).to receive(:new).and_return(sample_file)
      allow(sample_file).to receive(:unlink) { nil }
    end

    it 'iterates over the whole file' do
      count = 0
      RsrGroup::Catalog.all(6, credentials) do |chunk|
        count += chunk.length
      end

      expect(count).to eq(60)
    end
  end

end```

Remove the chunk size argument and reinstate the test on the `Catalog::all` method
user
```ruby
require 'spec_helper'

describe RsrGroup::Catalog do

  let(:sample_dir) { File.expand_path(File.join(Dir.pwd, 'spec', 'samples')) }
  let(:ftp) { instance_double('Net::FTP', :passive= => true, :debug_mode= => true) }
  let(:credentials) { { username: 'login', password: 'password' } }

  before do
    allow(Net::FTP).to receive(:open).with('ftp.host.com', 'login', 'password') { |&block| block.call(ftp) }
  end

  describe '.all' do
    let(:sample_file) { File.new(File.join(sample_dir, 'rsrinventory-new.txt')) }

    before do
      allow(ftp).to receive(:nlst) { ['ftpdownloads'] }
      allow(ftp).to receive(:chdir).with('ftpdownloads') { true }
      allow(ftp).to receive(:getbinaryfile) { nil }
      allow(ftp).to receive(:close) { nil }
      allow(Tempfile).to receive(:new).and_return(sample_file)
      allow(sample_file).to receive(:unlink) { nil }
    end

    it 'iterates over the whole file' do
      count = 0
      RsrGroup::Catalog.all(credentials) do |chunk|
        count += chunk.length
      end

      expect(count).to eq(60)
    end
  end

end```
assistant