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# frozen_string_literal: true

require 'spec_helper'

RSpec.shared_examples 'board lists destroy request' do
  include GraphqlHelpers

  subject { post_graphql_mutation(mutation, current_user: current_user) }

  shared_examples 'does not destroy the list and returns an error' do
    it 'does not destroy the list' do
      expect { subject }.not_to change { klass.count }
    end

    it 'returns an error and not nil list' do
      subject

      expect(mutation_response['errors']).not_to be_empty
      expect(mutation_response['list']).not_to be_nil
    end
  end

  context 'when the user does not have permission' do
    it 'does not destroy the list' do
      expect { subject }.not_to change { klass.count }
    end

    it 'returns an error' do
      subject

      expect(graphql_errors.first['message']).to include(Gitlab::Graphql::Authorize::AuthorizeResource::RESOURCE_ACCESS_ERROR)
    end
  end

  context 'when the user has permission' do
    before do
      group.add_maintainer(current_user)
    end

    context 'when given id is not for a list' do
      # could be any non-list thing
      let_it_be(:list) { group }

      it 'returns an error' do
        subject

        expect(graphql_errors.first['message']).to include('does not represent an instance of')
      end
    end

    context 'when list does not exist' do
      let(:variables) do
        {
          list_id: "gid://gitlab/#{klass}/#{non_existing_record_id}"
        }
      end

      it 'returns a top level error' do
        subject

        expect(graphql_errors.first['message']).to include('No object found for')
      end
    end

    context 'when everything is ok' do
      it 'destroys the list' do
        expect { subject }.to change { klass.count }.by(-1)
      end

      it 'returns an empty list' do
        post_graphql_mutation(mutation, current_user: current_user)

        expect(mutation_response).to have_key('list')
        expect(mutation_response['list']).to be_nil
        expect(mutation_response['errors']).to be_empty
      end
    end

    context 'when the list is not destroyable' do
      before do
        list.update!(list_type: :backlog)
      end

      it_behaves_like 'does not destroy the list and returns an error'
    end
  end
end