neudabei

# These two queries
subject_categories = SubjectCategory.in_alphabetical_order
interested_subject_categories = current_user.interested_subject_categories

# will now return the objects set up in our test
let(:subject_category_interests) { [subject_category_one, subject_category_three] }
let(:subject_categories) { [subject_category_one, subject_category_two, subject_category_three] }

neudabei

# ...

{ fields: 
  subject_categories.map do |sc|
    selected = interested_subject_categories.include?(sc)
    { title: sc.title, value: sc.id.to_s, selected: selected }
  end 
}

neudabei

describe '#subject_category_interest_props' do
  let(:current_user) { double(:user) }

  let(:subject_category_one) { double(:subject_category_one, id: 1, title: 'subject-category-title-1') }
  let(:subject_category_two) { double(:subject_category_two, id: 2, title: 'subject-category-title-2') }
  let(:subject_category_three) { double(:subject_category_three, id: 3, title: 'subject-category-title-3') }

  let(:subject_category_interests) { [subject_category_one, subject_category_three] }
  let(:subject_categories) { [subject_category_one, subject_category_two, subject_category_three] }

neudabei

describe '#subject_category_interest_props' do
  ## arrange
  # create all subject categories

  let!(:subject_category_one) { FactoryBot.create(:subject_category, id: 1, title: 'subject-category-title-1') }
  let!(:subject_category_two) { FactoryBot.create(:subject_category, id: 2, title: 'subject-category-title-2') }
  let!(:subject_category_three) { FactoryBot.create(:subject_category, id: 3, title: 'subject-category-title-3') }

  # a learner has some subject category interests