#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
#
# 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 doc/COPYRIGHT.rdoc for more details.
#++

require 'spec_helper'

describe WorkPackage, type: :model do
  let(:stub_work_package) { FactoryGirl.build_stubbed(:work_package) }
  let(:stub_version) { FactoryGirl.build_stubbed(:version) }
  let(:stub_project) { FactoryGirl.build_stubbed(:project) }
  let(:work_package) { FactoryGirl.create(:work_package) }
  let(:user) { FactoryGirl.create(:user) }

  let(:type) { FactoryGirl.create(:type_standard) }
  let(:project) { FactoryGirl.create(:project, types: [type]) }
  let(:status) { FactoryGirl.create(:status) }
  let(:priority) { FactoryGirl.create(:priority) }
  let(:work_package) {
    WorkPackage.new.tap do |w|
      w.force_attributes = { project_id: project.id,
                             type_id: type.id,
                             author_id: user.id,
                             status_id: status.id,
                             priority: priority,
                             subject: 'test_create',
                             description: 'WorkPackage#create',
                             estimated_hours: '1:30' }
    end
  }

  describe 'create' do
    describe :save do
      subject { work_package.save }

      it { is_expected.to be_truthy }
    end

    describe :estimated_hours do
      before do
        work_package.save!
        work_package.reload
      end

      subject { work_package.estimated_hours }

      it { is_expected.to eq(1.5) }
    end

    describe 'minimal' do
      let(:work_package_minimal) {
        WorkPackage.new.tap do |w|
          w.force_attributes = { project_id: project.id,
                                 type_id: type.id,
                                 author_id: user.id,
                                 status_id: status.id,
                                 priority: priority,
                                 subject: 'test_create' }
        end
      }

      context :save do
        subject { work_package_minimal.save }

        it { is_expected.to be_truthy }
      end

      context :description do
        before do
          work_package_minimal.save!
          work_package_minimal.reload
        end

        subject { work_package_minimal.description }

        it { is_expected.to be_nil }
      end
    end

    describe :assigned_to do
      context :group_assignment do
        let(:group) { FactoryGirl.create(:group) }

        before do
          allow(Setting).to receive(:work_package_group_assignment).and_return(true)
        end

        subject {
          FactoryGirl.create(:work_package,
                             assigned_to: group).assigned_to
        }

        it { is_expected.to eq(group) }
      end
    end
  end

  describe :type do
    context 'disabled type' do
      describe 'allows work package update' do
        before do
          work_package.save!

          project.types.delete work_package.type

          work_package.reload
          work_package.subject = 'New subject'
        end

        subject { work_package.save }

        it { is_expected.to be_truthy }
      end

      describe 'must not be set on work package' do
        before do
          project.types.delete work_package.type
        end

        context :save do
          subject { work_package.save }

          it { is_expected.to be_falsey }
        end

        context :errors do
          before { work_package.save }

          subject { work_package.errors[:type_id] }

          it { is_expected.not_to be_empty }
        end
      end
    end
  end

  describe :category do
    let(:user_2) { FactoryGirl.create(:user, member_in_project: project) }
    let(:category) {
      FactoryGirl.create(:category,
                         project: project,
                         assigned_to: user_2)
    }

    before do
      work_package.force_attributes = { category_id: category.id }
      work_package.save!
    end

    subject { work_package.assigned_to }

    it { is_expected.to eq(category.assigned_to) }
  end

  describe :assignable_assignees do
    let(:user) { FactoryGirl.build_stubbed(:user) }

    context 'single user' do
      before { allow(stub_work_package.project).to receive(:possible_assignees).and_return([user]) }

      subject { stub_work_package.assignable_assignees }

      it 'should return all users the project deems to be possible assignees' do
        is_expected.to include(user)
      end
    end

    context 'with work_package_group_assignment' do
      let(:group) { FactoryGirl.create(:group) }
      let(:work_package) { FactoryGirl.create(:work_package) }

      before do
        allow(Setting).to receive(:work_package_group_assignment?).and_return(true)
        work_package.project.add_member! group, FactoryGirl.create(:role)
      end

      subject { work_package.assignable_assignees }
      it { is_expected.to include(group) }
    end

    context 'without work_package_group_assignment' do
      let(:group) { FactoryGirl.create(:group) }
      let(:work_package) { FactoryGirl.create(:work_package) }

      before do
        allow(Setting).to receive(:work_package_group_assignment?).and_return(false)
        work_package.project.add_member! group, FactoryGirl.create(:role)
      end

      subject { work_package.assignable_assignees }
      it { is_expected.not_to include(group) }
    end

    context 'multiple users' do
      let(:user_2) { FactoryGirl.build_stubbed(:user) }

      before { allow(stub_work_package.project).to receive(:assignable_assignees).and_return([user, user_2]) }

      subject { stub_work_package.assignable_assignees.uniq }

      it { is_expected.to eq(stub_work_package.assignable_assignees) }
    end
  end

  describe :assignable_responsibles do
    let(:user) { FactoryGirl.create(:user) }
    let(:group) { FactoryGirl.create(:group) }

    before do
      work_package.project.add_member! user, FactoryGirl.create(:role)
      work_package.project.add_member! group, FactoryGirl.create(:role)
    end

    subject { work_package.assignable_responsibles }

    context 'with assignable groups' do
      before { allow(Setting).to receive(:work_package_group_assignment?).and_return(true) }

      it { is_expected.to match_array([user, group]) }
    end

    context 'w/o assignable groups' do
      before { allow(Setting).to receive(:work_package_group_assignment?).and_return(false) }

      it { is_expected.to match_array([user]) }
    end
  end

  describe 'responsible' do
    let(:group) { FactoryGirl.create(:group) }

    before { work_package.project.add_member! group, FactoryGirl.create(:role) }

    shared_context 'assign group as responsible' do
      before { work_package.responsible = group }
    end

    subject { work_package.valid? }

    context 'with assignable groups' do
      before { allow(Setting).to receive(:work_package_group_assignment?).and_return(true) }

      include_context 'assign group as responsible'

      it { is_expected.to be_truthy }
    end

    context 'w/o assignable groups' do
      before { allow(Setting).to receive(:work_package_group_assignment?).and_return(false) }

      include_context 'assign group as responsible'

      # TODO: Actually, the work package model should validate whether it is
      # allowed to assign a group or not (check setting
      # 'work_package_group_assignment?'). But neither assingee nor responsible
      # are validated (checked against the aforementioned setting).
      xit { is_expected.to be_falsy }
    end
  end

  describe :assignable_priorities do
    let(:work_package) { FactoryGirl.build_stubbed(:work_package) }
    let(:active_priority) { FactoryGirl.build(:priority, active: true) }
    let(:inactive_priority) { FactoryGirl.build(:priority, active: false) }

    before do
      active_priority.save!
      inactive_priority.save!
    end

    it 'returns active priorities' do
      expect(work_package.assignable_priorities).to match_array([active_priority])
    end
  end

  describe :assignable_versions do
    def stub_shared_versions(v = nil)
      versions = v ? [v] : []

      # open seems to be defined on the array's singleton class
      # as such it seems not possible to stub it
      # achieving the same here
      versions.define_singleton_method :open do
        self
      end

      allow(stub_work_package.project).to receive(:shared_versions).and_return(versions)
    end

    it "should return all the project's shared versions" do
      stub_shared_versions(stub_version)

      expect(stub_work_package.assignable_versions).to eq([stub_version])
    end

    it 'should return the current fixed_version' do
      stub_shared_versions

      allow(stub_work_package).to receive(:fixed_version_id_was).and_return(5)
      allow(Version).to receive(:find_by_id).with(5).and_return(stub_version)

      expect(stub_work_package.assignable_versions).to eq([stub_version])
    end
  end

  describe :assignable_versions do
    let(:work_package) {
      FactoryGirl.build(:work_package,
                        project: project,
                        fixed_version: version)
    }
    let(:version_open) {
      FactoryGirl.create(:version,
                         status: 'open',
                         project: project)
    }
    let(:version_locked) {
      FactoryGirl.create(:version,
                         status: 'locked',
                         project: project)
    }
    let(:version_closed) {
      FactoryGirl.create(:version,
                         status: 'closed',
                         project: project)
    }

    describe :assignment do
      context 'open version' do
        let(:version) { version_open }

        subject { work_package.assignable_versions.map(&:status).uniq }

        it { is_expected.to include('open') }
      end

      shared_examples_for 'invalid version' do
        before { work_package.save }

        subject { work_package.errors[:fixed_version_id] }

        it { is_expected.not_to be_empty }
      end

      context 'closed version' do
        let(:version) { version_closed }

        it_behaves_like 'invalid version'
      end

      context 'locked version' do
        let(:version) { version_locked }

        it_behaves_like 'invalid version'
      end

      context 'open version' do
        let(:version) { version_open }

        before { work_package.save }

        it { is_expected.to be_truthy }
      end
    end

    describe 'work package update' do
      let(:status_closed) {
        FactoryGirl.create(:status,
                           is_closed: true)
      }
      let(:status_open) {
        FactoryGirl.create(:status,
                           is_closed: false)
      }

      context 'closed version' do
        let(:version) {
          FactoryGirl.create(:version,
                             status: 'open',
                             project: project)
        }

        before do
          version_open

          work_package.status = status_closed
          work_package.save!
        end

        shared_context 'in closed version' do
          before do
            version.status = 'closed'
            version.save!
          end
        end

        context 'attribute update' do
          include_context 'in closed version'

          before { work_package.subject = 'Subject changed' }

          subject { work_package.save }

          it { is_expected.to be_truthy }
        end

        context 'status changed' do
          let!(:workflow) {
            FactoryGirl.create(:workflow,
                               old_status: status_closed,
                               new_status: status_open,
                               type_id: work_package.type_id)
          }
          let(:user) { FactoryGirl.create(:user) }
          let!(:membership) {
            FactoryGirl.create(:member,
                               user: user,
                               project: work_package.project,
                               roles: [workflow.role])
          }

          before { allow(User).to receive(:current).and_return(user) }

          shared_context 'in locked version' do
            before do
              version.status = 'locked'
              version.save!
            end
          end

          shared_examples_for 'save with open version' do
            before do
              work_package.status = status_open
              work_package.fixed_version = version_open
            end

            subject { work_package.save }

            it { is_expected.to be_truthy }
          end

          context 'in closed version' do
            include_context 'in closed version'

            before do
              work_package.status = status_open
              work_package.save
            end

            subject { work_package.errors[:base] }

            it { is_expected.not_to be_empty }
          end

          context 'from closed version' do
            include_context 'in closed version'

            it_behaves_like 'save with open version'
          end

          context 'from locked version' do
            include_context 'in locked version'

            it_behaves_like 'save with open version'
          end
        end
      end
    end
  end

  describe :move do
    let(:work_package) {
      FactoryGirl.create(:work_package,
                         project: project,
                         type: type)
    }
    let(:target_project) { FactoryGirl.create(:project) }

    shared_examples_for 'moved work package' do
      subject { work_package.project }

      it { is_expected.to eq(target_project) }
    end

    describe :time_entries do
      let(:time_entry_1) {
        FactoryGirl.create(:time_entry,
                           project: project,
                           work_package: work_package)
      }
      let(:time_entry_2) {
        FactoryGirl.create(:time_entry,
                           project: project,
                           work_package: work_package)
      }

      before do
        time_entry_1
        time_entry_2

        work_package.reload
        work_package.move_to_project(target_project)

        time_entry_1.reload
        time_entry_2.reload
      end

      context 'time entry 1' do
        subject { work_package.time_entries }

        it { is_expected.to include(time_entry_1) }
      end

      context 'time entry 2' do
        subject { work_package.time_entries }

        it { is_expected.to include(time_entry_2) }
      end

      it_behaves_like 'moved work package'
    end

    describe :category do
      let(:category) {
        FactoryGirl.create(:category,
                           project: project)
      }

      before do
        work_package.category = category
        work_package.save!

        work_package.reload
      end

      context 'with same category' do
        let(:target_category) {
          FactoryGirl.create(:category,
                             name: category.name,
                             project: target_project)
        }

        before do
          target_category

          work_package.move_to_project(target_project)
        end

        describe 'category moved' do
          subject { work_package.category_id }

          it { is_expected.to eq(target_category.id) }
        end

        it_behaves_like 'moved work package'
      end

      context 'w/o target category' do
        before { work_package.move_to_project(target_project) }

        describe 'category discarded' do
          subject { work_package.category_id }

          it { is_expected.to be_nil }
        end

        it_behaves_like 'moved work package'
      end
    end

    describe :version do
      let(:sharing) { 'none' }
      let(:version) {
        FactoryGirl.create(:version,
                           status: 'open',
                           project: project,
                           sharing: sharing)
      }
      let(:work_package) {
        FactoryGirl.create(:work_package,
                           fixed_version: version,
                           project: project)
      }

      before { work_package.move_to_project(target_project) }

      it_behaves_like 'moved work package'

      context 'unshared version' do
        subject { work_package.fixed_version }

        it { is_expected.to be_nil }
      end

      context 'system wide shared version' do
        let(:sharing) { 'system' }

        subject { work_package.fixed_version }

        it { is_expected.to eq(version) }
      end

      context 'move work package in project hierarchy' do
        let(:target_project) {
          FactoryGirl.create(:project,
                             parent: project)
        }

        context 'unshared version' do
          subject { work_package.fixed_version }

          it { is_expected.to be_nil }
        end

        context 'shared version' do
          let(:sharing) { 'tree' }

          subject { work_package.fixed_version }

          it { is_expected.to eq(version) }
        end
      end
    end

    describe :type do
      let(:target_type) { FactoryGirl.create(:type) }
      let(:target_project) {
        FactoryGirl.create(:project,
                           types: [target_type])
      }

      subject { work_package.move_to_project(target_project) }

      it { is_expected.to be_falsey }
    end
  end

  describe :destroy do
    let(:time_entry_1) {
      FactoryGirl.create(:time_entry,
                         project: project,
                         work_package: work_package)
    }
    let(:time_entry_2) {
      FactoryGirl.create(:time_entry,
                         project: project,
                         work_package: work_package)
    }

    before do
      time_entry_1
      time_entry_2

      work_package.destroy
    end

    context 'work package' do
      subject { WorkPackage.find_by_id(work_package.id) }

      it { is_expected.to be_nil }
    end

    context 'time entries' do
      subject { TimeEntry.find_by_work_package_id(work_package.id) }

      it { is_expected.to be_nil }
    end
  end

  describe :done_ratio do
    let(:status_new) {
      FactoryGirl.create(:status,
                         name: 'New',
                         is_default: true,
                         is_closed: false,
                         default_done_ratio: 50)
    }
    let(:status_assigned) {
      FactoryGirl.create(:status,
                         name: 'Assigned',
                         is_default: true,
                         is_closed: false,
                         default_done_ratio: 0)
    }
    let(:work_package_1) {
      FactoryGirl.create(:work_package,
                         status: status_new)
    }
    let(:work_package_2) {
      FactoryGirl.create(:work_package,
                         project: work_package_1.project,
                         status: status_assigned,
                         done_ratio: 30)
    }

    before { work_package_2 }

    describe :value do
      context 'work package field' do
        before { allow(Setting).to receive(:work_package_done_ratio).and_return 'field' }

        context 'work package 1' do
          subject { work_package_1.done_ratio }

          it { is_expected.to eq(0) }
        end

        context 'work package 2' do
          subject { work_package_2.done_ratio }

          it { is_expected.to eq(30) }
        end
      end

      context 'work package status' do
        before { allow(Setting).to receive(:work_package_done_ratio).and_return 'status' }

        context 'work package 1' do
          subject { work_package_1.done_ratio }

          it { is_expected.to eq(50) }
        end

        context 'work package 2' do
          subject { work_package_2.done_ratio }

          it { is_expected.to eq(0) }
        end
      end
    end

    describe :update_done_ratio_from_status do
      context 'work package field' do
        before do
          allow(Setting).to receive(:work_package_done_ratio).and_return 'field'

          work_package_1.update_done_ratio_from_status
          work_package_2.update_done_ratio_from_status
        end

        it 'does not update the done ratio' do
          expect(work_package_1.done_ratio).to eq(0)
          expect(work_package_2.done_ratio).to eq(30)
        end
      end

      context 'work package status' do
        before do
          allow(Setting).to receive(:work_package_done_ratio).and_return 'status'

          work_package_1.update_done_ratio_from_status
          work_package_2.update_done_ratio_from_status
        end

        it 'updates the done ratio' do
          expect(work_package_1.done_ratio).to eq(50)
          expect(work_package_2.done_ratio).to eq(0)
        end
      end
    end
  end

  describe :group_by do
    let(:type_2) { FactoryGirl.create(:type) }
    let(:priority_2) { FactoryGirl.create(:priority) }
    let(:project) { FactoryGirl.create(:project, types: [type, type_2]) }
    let(:version_1) {
      FactoryGirl.create(:version,
                         project: project)
    }
    let(:version_2) {
      FactoryGirl.create(:version,
                         project: project)
    }
    let(:category_1) {
      FactoryGirl.create(:category,
                         project: project)
    }
    let(:category_2) {
      FactoryGirl.create(:category,
                         project: project)
    }
    let(:user_2) { FactoryGirl.create(:user) }

    let(:work_package_1) {
      FactoryGirl.create(:work_package,
                         author: user,
                         assigned_to: user,
                         responsible: user,
                         project: project,
                         type: type,
                         priority: priority,
                         fixed_version: version_1,
                         category: category_1)
    }
    let(:work_package_2) {
      FactoryGirl.create(:work_package,
                         author: user_2,
                         assigned_to: user_2,
                         responsible: user_2,
                         project: project,
                         type: type_2,
                         priority: priority_2,
                         fixed_version: version_2,
                         category: category_2)
    }

    before do
      work_package_1
      work_package_2
    end

    shared_examples_for 'group by' do
      context :size do
        subject { groups.size }

        it { is_expected.to eq(2) }
      end

      context :total do
        subject { groups.inject(0) { |sum, group| sum + group['total'].to_i } }

        it { is_expected.to eq(2) }
      end
    end

    context 'by type' do
      let(:groups) { WorkPackage.by_type(project) }

      it_behaves_like 'group by'
    end

    context 'by version' do
      let(:groups) { WorkPackage.by_version(project) }

      it_behaves_like 'group by'
    end

    context 'by priority' do
      let(:groups) { WorkPackage.by_priority(project) }

      it_behaves_like 'group by'
    end

    context 'by category' do
      let(:groups) { WorkPackage.by_category(project) }

      it_behaves_like 'group by'
    end

    context 'by assigned to' do
      let(:groups) { WorkPackage.by_assigned_to(project) }

      it_behaves_like 'group by'
    end

    context 'by responsible' do
      let(:groups) { WorkPackage.by_responsible(project) }

      it_behaves_like 'group by'
    end

    context 'by author' do
      let(:groups) { WorkPackage.by_author(project) }

      it_behaves_like 'group by'
    end

    context 'by project' do
      let(:project_2) {
        FactoryGirl.create(:project,
                           parent: project)
      }
      let(:work_package_3) {
        FactoryGirl.create(:work_package,
                           project: project_2)
      }

      before { work_package_3 }

      let(:groups) { WorkPackage.by_author(project) }

      it_behaves_like 'group by'
    end
  end

  describe :recently_updated do
    let(:work_package_1) { FactoryGirl.create(:work_package) }
    let(:work_package_2) { FactoryGirl.create(:work_package) }

    before do
      work_package_1
      work_package_2

      without_timestamping do
        work_package_1.updated_at = 1.minute.ago
        work_package_1.save!
      end
    end

    context :limit do
      subject { WorkPackage.recently_updated.limit(1).first }

      it { is_expected.to eq(work_package_2) }
    end
  end

  describe :on_active_project do
    let(:project_archived) {
      FactoryGirl.create(:project,
                         status: Project::STATUS_ARCHIVED)
    }
    let!(:work_package) { FactoryGirl.create(:work_package) }
    let(:work_package_in_archived_project) {
      FactoryGirl.create(:work_package,
                         project: project_archived)
    }

    subject { WorkPackage.on_active_project.length }

    context 'one work package in active projects' do
      it { is_expected.to eq(1) }

      context 'and one work package in archived projects' do
        before { work_package_in_archived_project }

        it { is_expected.to eq(1) }
      end
    end
  end

  describe :with_author do
    let(:user) { FactoryGirl.create(:user) }
    let(:project_archived) {
      FactoryGirl.create(:project,
                         status: Project::STATUS_ARCHIVED)
    }
    let!(:work_package) { FactoryGirl.create(:work_package, author: user) }
    let(:work_package_in_archived_project) {
      FactoryGirl.create(:work_package,
                         project: project_archived,
                         author: user)
    }

    subject { WorkPackage.with_author(user).length }

    context 'one work package in active projects' do
      it { is_expected.to eq(1) }

      context 'and one work package in archived projects' do
        before { work_package_in_archived_project }

        it { is_expected.to eq(2) }
      end
    end
  end

  describe :recipients do
    let(:project) { FactoryGirl.create(:project) }
    let(:member) { FactoryGirl.create(:user) }
    let(:author) { FactoryGirl.create(:user) }
    let(:assignee) { FactoryGirl.create(:user) }
    let(:role) {
      FactoryGirl.create(:role,
                         permissions: [:view_work_packages])
    }
    let(:project_member) {
      FactoryGirl.create(:member,
                         user: member,
                         project: project,
                         roles: [role])
    }
    let(:project_author) {
      FactoryGirl.create(:member,
                         user: author,
                         project: project,
                         roles: [role])
    }
    let(:project_assignee) {
      FactoryGirl.create(:member,
                         user: assignee,
                         project: project,
                         roles: [role])
    }
    let(:work_package) {
      FactoryGirl.create(:work_package,
                         author: author,
                         assigned_to: assignee,
                         project: project)
    }

    shared_examples_for 'includes expected users' do
      subject { work_package.recipients }

      it { is_expected.to include(*expected_users) }
    end

    shared_examples_for 'includes not expected users' do
      subject { work_package.recipients }

      it { is_expected.not_to include(*expected_users) }
    end

    describe 'includes project recipients' do
      before { project_member }

      context 'pre-condition' do
        subject { project.recipients }

        it { is_expected.not_to be_empty }
      end

      let(:expected_users) { project.recipients }

      it_behaves_like 'includes expected users'
    end

    describe 'includes work package author' do
      before { project_author }

      context 'pre-condition' do
        subject { work_package.author }

        it { is_expected.not_to be_nil }
      end

      let(:expected_users) { work_package.author.mail }

      it_behaves_like 'includes expected users'
    end

    describe 'includes work package assignee' do
      before { project_assignee }

      context 'pre-condition' do
        subject { work_package.assigned_to }

        it { is_expected.not_to be_nil }
      end

      let(:expected_users) { work_package.assigned_to.mail }

      it_behaves_like 'includes expected users'
    end

    context 'mail notification settings' do
      before do
        project_author
        project_assignee
      end

      describe :none do
        before { author.update_attribute(:mail_notification, :none) }

        let(:expected_users) { work_package.author.mail }

        it_behaves_like 'includes not expected users'
      end

      describe :only_assigned do
        before { author.update_attribute(:mail_notification, :only_assigned) }

        let(:expected_users) { work_package.author.mail }

        it_behaves_like 'includes not expected users'
      end

      describe :only_assigned do
        before { assignee.update_attribute(:mail_notification, :only_owner) }

        let(:expected_users) { work_package.assigned_to.mail }

        it_behaves_like 'includes not expected users'
      end
    end
  end

  describe :new_statuses_allowed_to do

    let(:role) { FactoryGirl.create(:role) }
    let(:type) { FactoryGirl.create(:type) }
    let(:user) { FactoryGirl.create(:user) }
    let(:other_user) { FactoryGirl.create(:user) }
    let(:statuses) { (1..5).map { |_i| FactoryGirl.create(:status) } }
    let(:priority) { FactoryGirl.create :priority, is_default: true }
    let(:status) { statuses[0] }
    let(:project) do
      FactoryGirl.create(:project, types: [type]).tap { |p| p.add_member(user, role).save }
    end
    let(:workflow_a) {
      FactoryGirl.create(:workflow, role_id: role.id,
                                    type_id: type.id,
                                    old_status_id: statuses[0].id,
                                    new_status_id: statuses[1].id,
                                    author: false,
                                    assignee: false)
    }
    let(:workflow_b) {
      FactoryGirl.create(:workflow, role_id: role.id,
                                    type_id: type.id,
                                    old_status_id: statuses[0].id,
                                    new_status_id: statuses[2].id,
                                    author: true,
                                    assignee: false)
    }
    let(:workflow_c) {
      FactoryGirl.create(:workflow, role_id: role.id,
                                    type_id: type.id,
                                    old_status_id: statuses[0].id,
                                    new_status_id: statuses[3].id,
                                    author: false,
                                    assignee: true)
    }
    let(:workflow_d) {
      FactoryGirl.create(:workflow, role_id: role.id,
                                    type_id: type.id,
                                    old_status_id: statuses[0].id,
                                    new_status_id: statuses[4].id,
                                    author: true,
                                    assignee: true)
    }
    let(:workflows) { [workflow_a, workflow_b, workflow_c, workflow_d] }

    it 'should respect workflows w/o author and w/o assignee' do
      workflows
      expect(status.new_statuses_allowed_to([role], type, false, false)).to match_array([statuses[1]])
      expect(status.find_new_statuses_allowed_to([role], type, false, false)).to match_array([statuses[1]])
    end

    it 'should respect workflows w/ author and w/o assignee' do
      workflows
      expect(status.new_statuses_allowed_to([role], type, true, false)).to match_array([statuses[1], statuses[2]])
      expect(status.find_new_statuses_allowed_to([role], type, true, false)).to match_array([statuses[1], statuses[2]])
    end

    it 'should respect workflows w/o author and w/ assignee' do
      workflows
      expect(status.new_statuses_allowed_to([role], type, false, true)).to match_array([statuses[1], statuses[3]])
      expect(status.find_new_statuses_allowed_to([role], type, false, true)).to match_array([statuses[1], statuses[3]])
    end

    it 'should respect workflows w/ author and w/ assignee' do
      workflows
      expect(status.new_statuses_allowed_to([role], type, true, true)).to match_array([statuses[1], statuses[2], statuses[3], statuses[4]])
      expect(status.find_new_statuses_allowed_to([role], type, true, true)).to match_array([statuses[1], statuses[2], statuses[3], statuses[4]])
    end

    it 'should respect workflows w/o author and w/o assignee on work packages' do
      workflows
      work_package = WorkPackage.create(type_id: type.id,
                                        status: status,
                                        priority: priority,
                                        project: project)
      expect(work_package.new_statuses_allowed_to(user)).to match_array([statuses[0], statuses[1]])
    end

    it 'should respect workflows w/ author and w/o assignee on work packages' do
      workflows
      work_package = WorkPackage.create(type_id: type.id,
                                        status: status,
                                        priority: priority,
                                        project: project,
                                        author: user)
      expect(work_package.new_statuses_allowed_to(user)).to match_array([statuses[0], statuses[1], statuses[2]])
    end

    it 'should respect workflows w/o author and w/ assignee on work packages' do
      workflows
      work_package = WorkPackage.create(type_id: type.id,
                                        status: status,
                                        subject: 'test',
                                        priority: priority,
                                        project: project,
                                        assigned_to: user,
                                        author: other_user)
      expect(work_package.new_statuses_allowed_to(user)).to match_array([statuses[0], statuses[1], statuses[3]])
    end

    it 'should respect workflows w/ author and w/ assignee on work packages' do
      workflows
      work_package = WorkPackage.create(type_id: type.id,
                                        status: status,
                                        subject: 'test',
                                        priority: priority,
                                        project: project,
                                        author: user,
                                        assigned_to: user)
      expect(work_package.new_statuses_allowed_to(user)).to match_array([statuses[0], statuses[1], statuses[2], statuses[3], statuses[4]])
    end

  end

  describe :add_time_entry do
    it 'should return a new time entry' do
      expect(stub_work_package.add_time_entry).to be_a TimeEntry
    end

    it 'should already have the project assigned' do
      stub_work_package.project = stub_project

      expect(stub_work_package.add_time_entry.project).to eq(stub_project)
    end

    it 'should already have the work_package assigned' do
      expect(stub_work_package.add_time_entry.work_package).to eq(stub_work_package)
    end

    it 'should return an usaved entry' do
      expect(stub_work_package.add_time_entry).to be_new_record
    end
  end

  describe :update_by! do
    let(:instance) { FactoryGirl.create(:work_package) }

    it 'should return true' do
      expect(instance.update_by!(user, {})).to be_truthy
    end

    it 'should set the values' do
      instance.update_by!(user,  subject: 'New subject')

      expect(instance.subject).to eq('New subject')
    end

    it "should create a journal with the journal's 'notes' attribute set to the supplied" do
      instance.update_by!(user,  notes: 'blubs')

      expect(instance.journals.last.notes).to eq('blubs')
    end

    it 'should attach an attachment' do
      raw_attachments = [double('attachment')]
      attachment = FactoryGirl.build(:attachment)

      expect(instance).to receive(:attach_files)
        .with(raw_attachments)
        .and_return(attachment)

      instance.update_by!(user,  attachments: raw_attachments)
    end

    it 'should only attach the attachment when saving was successful' do
      raw_attachments = [double('attachment')]

      expect(Attachment).not_to receive(:attach_files)

      instance.update_by!(user,  subject: '', attachments: raw_attachments)
    end

    it 'should add a time entry' do
      activity = FactoryGirl.create(:time_entry_activity)

      instance.update_by!(user,  time_entry: { 'hours' => '5',
                                               'activity_id' => activity.id.to_s,
                                               'comments' => 'blubs' })

      expect(instance.time_entries.size).to eq(1)

      entry = instance.time_entries.first

      expect(entry).to be_persisted
      expect(entry.work_package).to eq(instance)
      expect(entry.user).to eq(user)
      expect(entry.project).to eq(instance.project)
      expect(entry.spent_on).to eq(Date.today)
    end

    it 'should not persist the time entry if the work package update fails' do
      activity = FactoryGirl.create(:time_entry_activity)

      instance.update_by!(user,  subject: '',
                                 time_entry: { 'hours' => '5',
                                               'activity_id' => activity.id.to_s,
                                               'comments' => 'blubs' })

      expect(instance.time_entries.size).to eq(1)

      entry = instance.time_entries.first

      expect(entry).not_to be_persisted
    end

    it 'should not add a time entry if the time entry attributes are empty' do
      time_attributes = { 'hours' => '',
                          'activity_id' => '',
                          'comments' => '' }

      instance.update_by!(user, time_entry: time_attributes)

      expect(instance.time_entries.size).to eq(0)
    end
  end

  describe '#allowed_target_projects_on_move' do
    let(:admin_user) { FactoryGirl.create :admin }
    let(:valid_user) { FactoryGirl.create :user }
    let(:project) { FactoryGirl.create :project }

    context 'admin user' do
      before do
        allow(User).to receive(:current).and_return admin_user
        project
      end

      subject { WorkPackage.allowed_target_projects_on_move.count }

      it 'sees all active projects' do
        is_expected.to eq Project.active.count
      end
    end

    context 'non admin user' do
      before do
        allow(User).to receive(:current).and_return valid_user

        role = FactoryGirl.create :role, permissions: [:move_work_packages]

        FactoryGirl.create(:member, user: valid_user, project: project, roles: [role])
      end

      subject { WorkPackage.allowed_target_projects_on_move.count }

      it 'sees all active projects' do
        is_expected.to eq Project.active.count
      end
    end
  end

  describe :duration do
    # TODO remove once only WP exists
    [:work_package].each do |subclass|

      describe "for #{subclass}" do
        let(:instance) { send(subclass) }

        describe "w/ today as start date
                  w/ tomorrow as due date" do
          before do
            instance.start_date = Date.today
            instance.due_date = Date.today + 1.day
          end

          it 'should have a duration of two' do
            expect(instance.duration).to eq(2)
          end
        end

        describe "w/ today as start date
                  w/ today as due date" do
          before do
            instance.start_date = Date.today
            instance.due_date = Date.today
          end

          it 'should have a duration of one' do
            expect(instance.duration).to eq(1)
          end
        end

        describe "w/ today as start date
                  w/o a due date" do
          before do
            instance.start_date = Date.today
            instance.due_date = nil
          end

          it 'should have a duration of one' do
            expect(instance.duration).to eq(1)
          end
        end

        describe "w/o a start date
                  w today as due date" do
          before do
            instance.start_date = nil
            instance.due_date = Date.today
          end

          it 'should have a duration of one' do
            expect(instance.duration).to eq(1)
          end
        end

        describe "w/o a start date
                  w an erroneous due date" do
          before do
            instance.start_date = nil
            instance.due_date = '856742858941748214577'
          end

          it 'should have a validation error' do
            expect(instance.error_on(:due_date).size).to eq(1)
          end
        end

      end
    end
  end

  describe 'Acts as journalized' do
    before(:each) do
      Status.delete_all
      IssuePriority.delete_all

      @type ||= FactoryGirl.create(:type_feature)

      @status_resolved ||= FactoryGirl.create(:status, name: 'Resolved', is_default: false)
      @status_open ||= FactoryGirl.create(:status, name: 'Open', is_default: true)
      @status_rejected ||= FactoryGirl.create(:status, name: 'Rejected', is_default: false)

      role = FactoryGirl.create(:role)
      FactoryGirl.create(:workflow,
                         old_status: @status_open,
                         new_status: @status_resolved,
                         role: role,
                         type_id: @type.id)
      FactoryGirl.create(:workflow,
                         old_status: @status_resolved,
                         new_status: @status_rejected,
                         role: role,
                         type_id: @type.id)

      @priority_low ||= FactoryGirl.create(:priority_low, is_default: true)
      @priority_high ||= FactoryGirl.create(:priority_high)
      @project ||= FactoryGirl.create(:project_with_types)

      @current = FactoryGirl.create(:user, login: 'user1', mail: 'user1@users.com')
      allow(User).to receive(:current).and_return(@current)
      @project.add_member!(@current, role)

      @user2 = FactoryGirl.create(:user, login: 'user2', mail: 'user2@users.com')

      @issue ||= FactoryGirl.create(:work_package, project: @project, status: @status_open, type: @type, author: @current)
    end

    describe 'ignore blank to blank transitions' do
      it 'should not include the "nil to empty string"-transition' do
        @issue.description = nil
        @issue.save!

        @issue.description = ''
        expect(@issue.send(:incremental_journal_changes)).to be_empty
      end
    end

    describe 'Acts as journalized recreate initial journal' do
      it 'should not include certain attributes' do
        recreated_journal = @issue.recreate_initial_journal!

        expect(recreated_journal.changed_data.include?('rgt')).to eq(false)
        expect(recreated_journal.changed_data.include?('lft')).to eq(false)
        expect(recreated_journal.changed_data.include?('lock_version')).to eq(false)
        expect(recreated_journal.changed_data.include?('updated_at')).to eq(false)
        expect(recreated_journal.changed_data.include?('updated_on')).to eq(false)
        expect(recreated_journal.changed_data.include?('id')).to eq(false)
        expect(recreated_journal.changed_data.include?('type')).to eq(false)
        expect(recreated_journal.changed_data.include?('root_id')).to eq(false)
      end

      it 'should not include useless transitions' do
        recreated_journal = @issue.recreate_initial_journal!

        recreated_journal.changed_data.values.each do |change|
          expect(change.first).not_to eq(change.last)
        end
      end

      it 'should not be different from the initially created journal by aaj' do
        # Creating four journals total
        @issue.status = @status_resolved
        @issue.assigned_to = @user2
        @issue.save!
        @issue.reload

        @issue.priority = @priority_high
        @issue.save!
        @issue.reload

        @issue.status = @status_rejected
        @issue.priority = @priority_low
        @issue.estimated_hours = 3
        @issue.save!

        initial_journal = @issue.journals.first
        recreated_journal = @issue.recreate_initial_journal!

        expect(initial_journal).to be_identical(recreated_journal)
      end

      it 'should not validate with oddly set estimated_hours' do
        @issue.estimated_hours = 'this should not work'
        expect(@issue).not_to be_valid
      end

      it 'should validate with sane estimated_hours' do
        @issue.estimated_hours = '13h'
        expect(@issue).to be_valid
      end
    end
  end

  describe :inherit_done_ratio_from_leaves do
    describe 'with done ratio disabled' do
      let(:project) { FactoryGirl.create(:project) }
      let(:work_package) { FactoryGirl.create(:work_package, project: project) }
      let(:child) {
        FactoryGirl.create(:work_package, parent: work_package,
                                          project: project)
      }
      let(:closed_status) { FactoryGirl.create(:closed_status) }
      let!(:workflow) {
        FactoryGirl.create(:workflow,
                           old_status: child.status,
                           new_status: closed_status,
                           type_id: child.type_id)
      }
      let(:user) {
        FactoryGirl.create(:user,
                           member_in_project: project,
                           member_through_role: workflow.role)
      }

      before do
        allow(Setting).to receive(:work_package_done_ratio).and_return('disabled')

        allow(User).to receive(:current).and_return(user)
      end

      it 'should not update the work package done_ratio' do
        expect(work_package.done_ratio).to eq(0)

        child.status = closed_status
        child.save!

        work_package.reload
        expect(work_package.done_ratio).to eq(0)
      end
    end
  end

  describe 'parent work package' do
    describe 'with parent_id for a not existing work package' do
      let(:project) { FactoryGirl.create(:project) }
      let(:invalid_work_package) { FactoryGirl.build(:work_package, project: project, parent_id: 1) }

      it 'should raise an error' do
        expect(invalid_work_package).not_to be_valid
      end
    end
  end

  describe 'custom fields' do
    it 'should not duplicate error messages when invalid' do
      cf1 = FactoryGirl.create(:work_package_custom_field, is_required: true)
      cf2 = FactoryGirl.create(:work_package_custom_field, is_required: true)

      # create work_package with one required custom field
      work_package = FactoryGirl.create :work_package
      work_package.project.work_package_custom_fields << cf1
      work_package.type.custom_fields << cf1

      # set that custom field with a value, should be fine
      work_package.custom_field_values = { cf1.id => 'test' }
      work_package.save!; work_package.reload

      # is it fine?
      expect(work_package).to be_valid

      # now give the work_package another required custom field, but don't assign a value
      work_package.project.work_package_custom_fields << cf2
      work_package.type.custom_fields << cf2
      work_package.custom_field_values # #custom_field_values needs to be touched

      # that should not be valid
      expect(work_package).to_not be_valid

      # assert that there is only one error
      expect(work_package.errors.size).to eq 1
      expect(work_package.errors_on(:custom_values).size).to eq 1
    end
  end

  describe 'changed_since' do
    let!(:work_package) do
      work_package = Timecop.travel(5.hours.ago) do
        wp = FactoryGirl.create(:work_package)
        wp.save!
        wp
      end
    end

    describe 'null' do
      subject { WorkPackage.changed_since(nil) }

      it { expect(subject).to match_array([work_package]) }
    end

    describe 'now' do
      subject { WorkPackage.changed_since(DateTime.now) }

      it { expect(subject).to be_empty }
    end

    describe 'work package update' do
      subject { WorkPackage.changed_since(work_package.updated_at) }

      it { expect(subject).to match_array([work_package]) }
    end
  end

  describe 'spent_hours' do
    let(:project) { FactoryGirl.create(:project) }
    let(:work_package) { FactoryGirl.create(:work_package, project: project) }
    let!(:time_entry1) {
      FactoryGirl.create(:time_entry,
                         project: project,
                         work_package: work_package,
                         hours: 2.0)
    }
    let!(:time_entry2) {
      FactoryGirl.create(:time_entry,
                         project: project,
                         work_package: work_package,
                         hours: 42.0)
    }

    shared_examples_for 'returns spent hours' do |hours|
      subject { work_package.spent_hours }

      it { expect(subject).to eql(hours) }
    end

    context 'user with permission to view time entries' do
      let(:permissions) { [:view_work_packages, :view_time_entries] }
      let(:role) { FactoryGirl.create(:role, permissions: permissions) }
      let(:user) {
        FactoryGirl.create(:user,
                           member_in_project: project,
                           member_through_role: role)
      }

      before do
        allow(User).to receive(:current).and_return(user)
      end

      it_behaves_like 'returns spent hours', 44.0

      context 'cross project work packages allowed' do
        let(:other_work_package) { FactoryGirl.create(:work_package) }
        let(:other_visible_work_package) { FactoryGirl.create(:work_package) }
        let(:other_role) { FactoryGirl.create(:role, permissions: [:view_work_packages]) }
        let!(:member) {
          FactoryGirl.create(:member,
                             user: user,
                             project: other_visible_work_package.project,
                             roles: [other_role])
        }
        let!(:time_entry3) {
          FactoryGirl.create(:time_entry,
                             project: other_work_package.project,
                             work_package: other_work_package,
                             hours: 99.0)
        }
        let!(:time_entry4) {
          FactoryGirl.create(:time_entry,
                             project: other_visible_work_package.project,
                             work_package: other_visible_work_package,
                             hours: 100.0)
        }

        before do
          Setting.stub(:cross_project_work_package_relations?).and_return(true)

          other_work_package.parent = work_package
          other_work_package.save!

          other_visible_work_package.parent = other_work_package
          other_visible_work_package.save!

          work_package.reload
        end

        it_behaves_like 'returns spent hours', 44.0
      end
    end

    context 'user w/o permission to view time entries' do
      let(:user) { FactoryGirl.create(:user, member_in_project: project) }

      it_behaves_like 'returns spent hours', 0.0
    end
  end
end