#-- copyright
# OpenProject is an open source project management software.
# Copyright (C) 2012-2021 the OpenProject GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See docs/COPYRIGHT.rdoc for more details.
#++

require 'spec_helper'

describe OpenProject::ChangedBySystem do
  subject(:model) do
    model = News.new
    model.extend(described_class)
    model
  end

  describe '#changed_by_user' do
    context 'when an attribute is changed' do
      before do
        model.title = 'abc'
      end

      it 'returns the attribute' do
        expect(model.changed_by_user)
          .to match_array ['title']
      end
    end

    context 'when an attribute is changed by the system' do
      before do
        model.change_by_system do
          model.title = 'abc'
        end
      end

      it 'returns no attributes' do
        expect(model.changed_by_user)
          .to be_empty
      end
    end

    context 'when an attribute is changed by the system first and then by the user to a different value' do
      before do
        model.change_by_system do
          model.title = 'abc'
        end

        model.title = 'xyz'
      end

      it 'returns the attribute' do
        expect(model.changed_by_user)
          .to match_array ['title']
      end
    end

    context 'when an attribute is changed by the system first and then by the user to the same value' do
      before do
        model.change_by_system do
          model.title = 'abc'
        end

        model.title = 'abc'
      end

      it 'returns no attribute' do
        expect(model.changed_by_user)
          .to be_empty
      end
    end
  end
end