Merge remote-tracking branch 'upstream/master' into ce-to-ee-2018-10-29

# Conflicts:
#	db/schema.rb

[ci skip]

app/assets/javascripts/filtered_search/issuable_filtered_search_token_keys.js

@@ -58,10 +58,15 @@ export const alternativeTokenKeys = [
 
 export const conditions = [
   {
-    url: 'assignee_id=0',
+    url: 'assignee_id=None',
     tokenKey: 'assignee',
     value: 'none',
   },
+  {
+    url: 'assignee_id=Any',
+    tokenKey: 'assignee',
+    value: 'any',
+  },
   {
     url: 'milestone_title=No+Milestone',
     tokenKey: 'milestone',

app/controllers/dashboard/milestones_controller.rb

@@ -4,12 +4,13 @@ class Dashboard::MilestonesController < Dashboard::ApplicationController
   include MilestoneActions
 
   before_action :projects
+  before_action :groups, only: :index
   before_action :milestone, only: [:show, :merge_requests, :participants, :labels]
 
   def index
     respond_to do |format|
       format.html do
-        @milestone_states = GlobalMilestone.states_count(@projects)
+        @milestone_states = Milestone.states_count(@projects.select(:id), @groups.select(:id))
         @milestones = Kaminari.paginate_array(milestones).page(params[:page])
       end
       format.json do
@@ -42,4 +43,8 @@ class Dashboard::MilestonesController < Dashboard::ApplicationController
     @milestone = DashboardMilestone.build(@projects, params[:title])
     render_404 unless @milestone
   end
+
+  def groups
+    @groups ||= GroupsFinder.new(current_user, state_all: true).execute
+  end
 end

app/controllers/groups/milestones_controller.rb

@@ -12,7 +12,7 @@ class Groups::MilestonesController < Groups::ApplicationController
   def index
     respond_to do |format|
       format.html do
-        @milestone_states = GlobalMilestone.states_count(group_projects, group)
+        @milestone_states = Milestone.states_count(group_projects, [group])
         @milestones = Kaminari.paginate_array(milestones).page(params[:page])
       end
       format.json do

app/models/clusters/cluster.rb

@@ -22,6 +22,12 @@ module Clusters
     has_many :cluster_projects, class_name: 'Clusters::Project'
     has_many :projects, through: :cluster_projects, class_name: '::Project'
 
+    has_many :cluster_groups, class_name: 'Clusters::Group'
+    has_many :groups, through: :cluster_groups, class_name: '::Group'
+
+    has_one :cluster_group, -> { order(id: :desc) }, class_name: 'Clusters::Group'
+    has_one :group, through: :cluster_group, class_name: '::Group'
+
     # we force autosave to happen when we save `Cluster` model
     has_one :provider_gcp, class_name: 'Clusters::Providers::Gcp', autosave: true
 
@@ -40,8 +46,12 @@ module Clusters
     accepts_nested_attributes_for :platform_kubernetes, update_only: true
 
     validates :name, cluster_name: true
+    validates :cluster_type, presence: true
     validate :restrict_modification, on: :update
 
+    validate :no_groups, unless: :group_type?
+    validate :no_projects, unless: :project_type?
+
     delegate :status, to: :provider, allow_nil: true
     delegate :status_reason, to: :provider, allow_nil: true
     delegate :on_creation?, to: :provider, allow_nil: true
@@ -52,6 +62,12 @@ module Clusters
     delegate :available?, to: :application_ingress, prefix: true, allow_nil: true
     delegate :available?, to: :application_prometheus, prefix: true, allow_nil: true
 
+    enum cluster_type: {
+      instance_type: 1,
+      group_type: 2,
+      project_type: 3
+    }
+
     enum platform_type: {
       kubernetes: 1
     }
@@ -124,5 +140,17 @@ module Clusters
 
       true
     end
+
+    def no_groups
+      if groups.any?
+        errors.add(:cluster, 'cannot have groups assigned')
+      end
+    end
+
+    def no_projects
+      if projects.any?
+        errors.add(:cluster, 'cannot have projects assigned')
+      end
+    end
   end
 end

app/models/clusters/group.rb

+# frozen_string_literal: true
+
+module Clusters
+  class Group < ActiveRecord::Base
+    self.table_name = 'cluster_groups'
+
+    belongs_to :cluster, class_name: 'Clusters::Cluster'
+    belongs_to :group, class_name: '::Group'
+  end
+end

app/models/concerns/deployment_platform.rb

@@ -42,6 +42,7 @@ module DeploymentPlatform
     {
       name: 'kubernetes-template',
       projects: [self],
+      cluster_type: :project_type,
       provider_type: :user,
       platform_type: :kubernetes,
       platform_kubernetes_attributes: platform_kubernetes_attributes_from_service_template

app/models/global_milestone.rb

@@ -36,50 +36,6 @@ class GlobalMilestone
     new(title, child_milestones)
   end
 
-  def self.states_count(projects, group = nil)
-    legacy_group_milestones_count = legacy_group_milestone_states_count(projects)
-    group_milestones_count = group_milestones_states_count(group)
-
-    legacy_group_milestones_count.merge(group_milestones_count) do |k, legacy_group_milestones_count, group_milestones_count|
-      legacy_group_milestones_count + group_milestones_count
-    end
-  end
-
-  def self.group_milestones_states_count(group)
-    return STATE_COUNT_HASH unless group
-
-    params = { group_ids: [group.id], state: 'all' }
-
-    relation = MilestonesFinder.new(params).execute # rubocop: disable CodeReuse/Finder
-    grouped_by_state = relation.reorder(nil).group(:state).count
-
-    {
-      opened: grouped_by_state['active'] || 0,
-      closed: grouped_by_state['closed'] || 0,
-      all: grouped_by_state.values.sum
-    }
-  end
-
-  # Counts the legacy group milestones which must be grouped by title
-  def self.legacy_group_milestone_states_count(projects)
-    return STATE_COUNT_HASH unless projects
-
-    params = { project_ids: projects.map(&:id), state: 'all' }
-
-    relation = MilestonesFinder.new(params).execute # rubocop: disable CodeReuse/Finder
-    project_milestones_by_state_and_title = relation.reorder(nil).group(:state, :title).count
-
-    opened = count_by_state(project_milestones_by_state_and_title, 'active')
-    closed = count_by_state(project_milestones_by_state_and_title, 'closed')
-    all = project_milestones_by_state_and_title.map { |(_, title), _| title }.uniq.count
-
-    {
-      opened: opened,
-      closed: closed,
-      all: all
-    }
-  end
-
   def self.count_by_state(milestones_by_state_and_title, state)
     milestones_by_state_and_title.count do |(milestone_state, _), _|
       milestone_state == state

app/models/group.rb

@@ -43,6 +43,9 @@ class Group < Namespace
   has_many :boards
   has_many :badges, class_name: 'GroupBadge'
 
+  has_many :cluster_groups, class_name: 'Clusters::Group'
+  has_many :clusters, through: :cluster_groups, class_name: 'Clusters::Cluster'
+
   has_many :todos
 
   accepts_nested_attributes_for :variables, allow_destroy: true

app/models/milestone.rb

@@ -174,6 +174,22 @@ class Milestone < ActiveRecord::Base
     sorted.with_order_id_desc
   end
 
+  def self.states_count(projects, groups = nil)
+    return STATE_COUNT_HASH unless projects || groups
+
+    counts = Milestone
+               .for_projects_and_groups(projects&.map(&:id), groups&.map(&:id))
+               .reorder(nil)
+               .group(:state)
+               .count
+
+    {
+        opened: counts['active'] || 0,
+        closed: counts['closed'] || 0,
+        all: counts.values.sum
+    }
+  end
+
   ##
   # Returns the String necessary to reference this Milestone in Markdown. Group
   # milestones only support name references, and do not support cross-project

app/services/clusters/create_service.rb

@@ -11,9 +11,9 @@ module Clusters
     end
 
     def execute(project:, access_token: nil)
-      raise ArgumentError.new(_('Instance does not support multiple Kubernetes clusters')) unless can_create_cluster?(project)
+      raise ArgumentError, _('Instance does not support multiple Kubernetes clusters') unless can_create_cluster?(project)
 
-      cluster_params = params.merge(user: current_user, projects: [project])
+      cluster_params = params.merge(user: current_user, cluster_type: :project_type, projects: [project])
       cluster_params[:provider_gcp_attributes].try do |provider|
         provider[:access_token] = access_token
       end

app/views/shared/issuable/_search_bar.html.haml

@@ -61,7 +61,10 @@
               %ul{ data: { dropdown: true } }
                 %li.filter-dropdown-item{ data: { value: 'none' } }
                   %button.btn.btn-link{ type: 'button' }
-                    = _('No Assignee')
+                    = _('None')
+                %li.filter-dropdown-item{ data: { value: 'any' } }
+                  %button.btn.btn-link{ type: 'button' }
+                    = _('Any')
                 %li.divider.droplab-item-ignore
                 - if current_user
                   = render 'shared/issuable/user_dropdown_item',
@@ -81,7 +84,7 @@
                 %li.filter-dropdown-item{ data: { value: 'upcoming' } }
                   %button.btn.btn-link{ type: 'button' }
                     = _('Upcoming')
-                %li.filter-dropdown-item{ 'data-value' => 'started' }
+                %li.filter-dropdown-item{ data: { value: 'started' } }
                   %button.btn.btn-link{ type: 'button' }
                     = _('Started')
                 %li.divider.droplab-item-ignore

changelogs/unreleased/34758-create-group-clusters.yml

+---
+title: Adds model and migrations to enable group level clusters
+merge_request: 22307
+author:
+type: other

changelogs/unreleased/52383-ui-filter-assignee-none-any.yml

+---
+title: Add None/Any option for assignee_id in search bar
+merge_request: 22599
+author: Heinrich Lee Yu
+type: added

changelogs/unreleased/rz_fix_milestone_count.yml

+---
+title: Fixing count on Milestones
+merge_request: 21446
+author:
+type: fixed

config/routes.rb

@@ -87,6 +87,7 @@ Rails.application.routes.draw do
     get 'ide' => 'ide#index'
     get 'ide/*vueroute' => 'ide#index', format: false
 
+    draw :operations
     draw :instance_statistics
   end
 

db/migrate/20181014203236_create_cluster_groups.rb

+# frozen_string_literal: true
+
+class CreateClusterGroups < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :cluster_groups do |t|
+      t.references :cluster, null: false, foreign_key: { on_delete: :cascade }
+      t.references :group, null: false, index: true
+
+      t.index [:cluster_id, :group_id], unique: true
+      t.foreign_key :namespaces, column: :group_id, on_delete: :cascade
+    end
+  end
+end

db/migrate/20181017001059_add_cluster_type_to_clusters.rb

+# frozen_string_literal: true
+
+class AddClusterTypeToClusters < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+  PROJECT_CLUSTER_TYPE = 3
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default(:clusters, :cluster_type, :smallint, default: PROJECT_CLUSTER_TYPE)
+  end
+
+  def down
+    remove_column(:clusters, :cluster_type)
+  end
+end

db/schema.rb

@@ -11,7 +11,11 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
+<<<<<<< HEAD
 ActiveRecord::Schema.define(version: 20181017131623) do
+=======
+ActiveRecord::Schema.define(version: 20181017001059) do
+>>>>>>> upstream/master
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -717,6 +721,14 @@ ActiveRecord::Schema.define(version: 20181017131623) do
 
   add_index "ci_variables", ["project_id", "key", "environment_scope"], name: "index_ci_variables_on_project_id_and_key_and_environment_scope", unique: true, using: :btree
 
+  create_table "cluster_groups", force: :cascade do |t|
+    t.integer "cluster_id", null: false
+    t.integer "group_id", null: false
+  end
+
+  add_index "cluster_groups", ["cluster_id", "group_id"], name: "index_cluster_groups_on_cluster_id_and_group_id", unique: true, using: :btree
+  add_index "cluster_groups", ["group_id"], name: "index_cluster_groups_on_group_id", using: :btree
+
   create_table "cluster_platforms_kubernetes", force: :cascade do |t|
     t.integer "cluster_id", null: false
     t.datetime "created_at", null: false
@@ -772,6 +784,7 @@ ActiveRecord::Schema.define(version: 20181017131623) do
     t.boolean "enabled", default: true
     t.string "name", null: false
     t.string "environment_scope", default: "*", null: false
+    t.integer "cluster_type", limit: 2, default: 3, null: false
   end
 
   add_index "clusters", ["enabled"], name: "index_clusters_on_enabled", using: :btree
@@ -3225,6 +3238,8 @@ ActiveRecord::Schema.define(version: 20181017131623) do
   add_foreign_key "ci_triggers", "projects", name: "fk_e3e63f966e", on_delete: :cascade
   add_foreign_key "ci_triggers", "users", column: "owner_id", name: "fk_e8e10d1964", on_delete: :cascade
   add_foreign_key "ci_variables", "projects", name: "fk_ada5eb64b3", on_delete: :cascade
+  add_foreign_key "cluster_groups", "clusters", on_delete: :cascade
+  add_foreign_key "cluster_groups", "namespaces", column: "group_id", on_delete: :cascade
   add_foreign_key "cluster_platforms_kubernetes", "clusters", on_delete: :cascade
   add_foreign_key "cluster_projects", "clusters", on_delete: :cascade
   add_foreign_key "cluster_projects", "projects", on_delete: :cascade

doc/api/tags.md

@@ -134,7 +134,7 @@ Parameters:
     "description": "Amazing release. Wow"
   },
   "name": "v1.0.0",
-  "target: "2695effb5807a22ff3d138d593fd856244e155e7",
+  "target": "2695effb5807a22ff3d138d593fd856244e155e7",
   "message": null
 }
 ```

doc/user/project/issue_board.md

@@ -176,8 +176,8 @@ Clicking on the current board name in the upper left corner will reveal a
 menu from where you can create another Issue Board and rename or delete the
 existing one.
 
-Clicking on the main issue board link will take you to the last board
-you visited.
+When you're revisiting an issue board in a project or group with multiple boards, 
+GitLab will automatically load the last board you visited.
 
 NOTE: **Note:**
 The Multiple Issue Boards feature is available for

doc/user/search/index.md

@@ -40,6 +40,16 @@ The same process is valid for merge requests. Navigate to your project's **Merge
 and click **Search or filter results...**. Merge requests can be filtered by author, assignee,
 milestone, and label.
 
+### Filtering by **None** / **Any**
+
+Some filter fields like milestone and assignee, allow you to filter by **None** or **Any**.
+
+![filter by none any](img/issues_filter_none_any.png)
+
+Selecting **None** returns results that have an empty value for that field. E.g.: no milestone, no assignee.
+
+Selecting **Any** does the opposite. It returns results that have a non-empty value for that field.
+
 ### Searching for specific terms
 
 You can filter issues and merge requests by specific terms included in titles or descriptions.

locale/gitlab.pot

@@ -5257,9 +5257,6 @@ msgstr ""
 msgid "No"
 msgstr ""
 
-msgid "No Assignee"
-msgstr ""
-
 msgid "No Label"
 msgstr ""
 

spec/controllers/dashboard/milestones_controller_spec.rb

@@ -45,6 +45,8 @@ describe Dashboard::MilestonesController do
   end
 
   describe "#index" do
+    render_views
+
     it 'returns group and project milestones to which the user belongs' do
       get :index, format: :json
 
@@ -53,5 +55,12 @@ describe Dashboard::MilestonesController do
       expect(json_response.map { |i| i["first_milestone"]["id"] }).to match_array([group_milestone.id, project_milestone.id])
       expect(json_response.map { |i| i["group_name"] }.compact).to match_array(group.name)
     end
+
+    it 'should contain group and project milestones to which the user belongs to' do
+      get :index
+
+      expect(response.body).to include("Open\n<span class=\"badge badge-pill\">3</span>")
+      expect(response.body).to include("Closed\n<span class=\"badge badge-pill\">0</span>")
+    end
   end
 end

spec/factories/clusters/clusters.rb

@@ -2,13 +2,28 @@ FactoryBot.define do
   factory :cluster, class: Clusters::Cluster do
     user
     name 'test-cluster'
+    cluster_type :project_type
+
+    trait :instance do
+      cluster_type { Clusters::Cluster.cluster_types[:instance_type] }
+    end
 
     trait :project do
+      cluster_type { Clusters::Cluster.cluster_types[:project_type] }
+
       before(:create) do |cluster, evaluator|
         cluster.projects << create(:project, :repository)
       end
     end
 
+    trait :group do
+      cluster_type { Clusters::Cluster.cluster_types[:group_type] }
+
+      before(:create) do |cluster, evalutor|
+        cluster.groups << create(:group)
+      end
+    end
+
     trait :provided_by_user do
       provider_type :user
       platform_type :kubernetes

spec/features/boards/modal_filter_spec.rb

@@ -106,7 +106,7 @@ describe 'Issue Boards add issue modal filtering', :js do
 
     it 'filters by unassigned' do
       set_filter('assignee')
-      click_filter_link('No Assignee')
+      click_filter_link('None')
       submit_filter
 
       page.within('.add-issues-modal') do

spec/features/groups/milestone_spec.rb

@@ -95,9 +95,9 @@ describe 'Group milestones' do
       end
 
       it 'counts milestones correctly' do
-        expect(find('.top-area .active .badge').text).to eq("2")
-        expect(find('.top-area .closed .badge').text).to eq("2")
-        expect(find('.top-area .all .badge').text).to eq("4")
+        expect(find('.top-area .active .badge').text).to eq("3")
+        expect(find('.top-area .closed .badge').text).to eq("3")
+        expect(find('.top-area .all .badge').text).to eq("6")
       end
 
       it 'lists legacy group milestones and group milestones' do

spec/features/issues/filtered_search/dropdown_assignee_spec.rb

@@ -156,13 +156,21 @@ describe 'Dropdown assignee', :js do
       expect_filtered_search_input_empty
     end
 
-    it 'selects `no assignee`' do
-      find('#js-dropdown-assignee .filter-dropdown-item', text: 'No Assignee').click
+    it 'selects `None`' do
+      find('#js-dropdown-assignee .filter-dropdown-item', text: 'None').click
 
       expect(page).to have_css(js_dropdown_assignee, visible: false)
       expect_tokens([assignee_token('none')])
       expect_filtered_search_input_empty
     end
+
+    it 'selects `Any`' do
+      find('#js-dropdown-assignee .filter-dropdown-item', text: 'Any').click
+
+      expect(page).to have_css(js_dropdown_assignee, visible: false)
+      expect_tokens([assignee_token('any')])
+      expect_filtered_search_input_empty
+    end
   end
 
   describe 'selecting from dropdown without Ajax call' do

spec/features/issues/filtered_search/visual_tokens_spec.rb

@@ -118,7 +118,7 @@ describe 'Visual tokens', :js do
 
     describe 'selecting static option from dropdown' do
       before do
-        find("#js-dropdown-assignee").find('.filter-dropdown-item', text: 'No Assignee').click
+        find("#js-dropdown-assignee").find('.filter-dropdown-item', text: 'None').click
       end
 
       it 'changes value in visual token' do

spec/models/clusters/cluster_spec.rb

@@ -4,7 +4,10 @@ require 'spec_helper'
 
 describe Clusters::Cluster do
   it { is_expected.to belong_to(:user) }
+  it { is_expected.to have_many(:cluster_projects) }
   it { is_expected.to have_many(:projects) }
+  it { is_expected.to have_many(:cluster_groups) }
+  it { is_expected.to have_many(:groups) }
   it { is_expected.to have_one(:provider_gcp) }
   it { is_expected.to have_one(:platform_kubernetes) }
   it { is_expected.to have_one(:application_helm) }
@@ -178,6 +181,53 @@ describe Clusters::Cluster do
         it { expect(cluster.update(enabled: false)).to be_truthy }
       end
     end
+
+    describe 'cluster_type validations' do
+      let(:instance_cluster) { create(:cluster, :instance) }
+      let(:group_cluster) { create(:cluster, :group) }
+      let(:project_cluster) { create(:cluster, :project) }
+
+      it 'validates presence' do
+        cluster = build(:cluster, :project, cluster_type: nil)
+
+        expect(cluster).not_to be_valid
+        expect(cluster.errors.full_messages).to include("Cluster type can't be blank")
+      end
+
+      context 'project_type cluster' do
+        it 'does not allow setting group' do
+          project_cluster.groups << build(:group)
+
+          expect(project_cluster).not_to be_valid
+          expect(project_cluster.errors.full_messages).to include('Cluster cannot have groups assigned')
+        end
+      end
+
+      context 'group_type cluster' do
+        it 'does not allow setting project' do
+          group_cluster.projects << build(:project)
+
+          expect(group_cluster).not_to be_valid
+          expect(group_cluster.errors.full_messages).to include('Cluster cannot have projects assigned')
+        end
+      end
+
+      context 'instance_type cluster' do
+        it 'does not allow setting group' do
+          instance_cluster.groups << build(:group)
+
+          expect(instance_cluster).not_to be_valid
+          expect(instance_cluster.errors.full_messages).to include('Cluster cannot have groups assigned')
+        end
+
+        it 'does not allow setting project' do
+          instance_cluster.projects << build(:project)
+
+          expect(instance_cluster).not_to be_valid
+          expect(instance_cluster.errors.full_messages).to include('Cluster cannot have projects assigned')
+        end
+      end
+    end
   end
 
   describe '#provider' do
@@ -229,6 +279,23 @@ describe Clusters::Cluster do
     end
   end
 
+  describe '#group' do
+    subject { cluster.group }
+
+    context 'when cluster belongs to a group' do
+      let(:cluster) { create(:cluster, :group) }
+      let(:group) { cluster.groups.first }
+
+      it { is_expected.to eq(group) }
+    end
+
+    context 'when cluster does not belong to any group' do
+      let(:cluster) { create(:cluster) }
+
+      it { is_expected.to be_nil }
+    end
+  end
+
   describe '#applications' do
     set(:cluster) { create(:cluster) }
 

spec/models/clusters/group_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Clusters::Group do
+  it { is_expected.to belong_to(:cluster) }
+  it { is_expected.to belong_to(:group) }
+end

spec/models/global_milestone_spec.rb

@@ -92,41 +92,6 @@ describe GlobalMilestone do
     end
   end
 
-  describe '.states_count' do
-    context 'when the projects have milestones' do
-      before do
-        create(:closed_milestone, title: 'Active Group Milestone', project: project3)
-        create(:active_milestone, title: 'Active Group Milestone', project: project1)
-        create(:active_milestone, title: 'Active Group Milestone', project: project2)
-        create(:closed_milestone, title: 'Closed Group Milestone', project: project1)
-        create(:closed_milestone, title: 'Closed Group Milestone', project: project2)
-        create(:closed_milestone, title: 'Closed Group Milestone', project: project3)
-      end
-
-      it 'returns the quantity of global milestones in each possible state' do
-        expected_count = { opened: 1, closed: 2, all: 2 }
-
-        count = described_class.states_count(Project.all)
-
-        expect(count).to eq(expected_count)
-      end
-    end
-
-    context 'when the projects do not have milestones' do
-      before do
-        project1
-      end
-
-      it 'returns 0 as the quantity of global milestones in each state' do
-        expected_count = { opened: 0, closed: 0, all: 0 }
-
-        count = described_class.states_count(Project.all)
-
-        expect(count).to eq(expected_count)
-      end
-    end
-  end
-
   describe '#initialize' do
     let(:milestone1_project1) { create(:milestone, title: "Milestone v1.2", project: project1) }
     let(:milestone1_project2) { create(:milestone, title: "Milestone v1.2", project: project2) }

spec/models/group_spec.rb

@@ -19,6 +19,8 @@ describe Group do
     it { is_expected.to have_one(:chat_team) }
     it { is_expected.to have_many(:custom_attributes).class_name('GroupCustomAttribute') }
     it { is_expected.to have_many(:badges).class_name('GroupBadge') }
+    it { is_expected.to have_many(:cluster_groups).class_name('Clusters::Group') }
+    it { is_expected.to have_many(:clusters).class_name('Clusters::Cluster') }
 
     describe '#members & #requesters' do
       let(:requester) { create(:user) }

spec/models/milestone_spec.rb

@@ -350,4 +350,41 @@ describe Milestone do
       end
     end
   end
+
+  describe '.states_count' do
+    context 'when the projects have milestones' do
+      before do
+        project_1 = create(:project)
+        project_2 = create(:project)
+        group_1 = create(:group)
+        group_2 = create(:group)
+
+        create(:active_milestone, title: 'Active Group Milestone', project: project_1)
+        create(:closed_milestone, title: 'Closed Group Milestone', project: project_1)
+        create(:active_milestone, title: 'Active Group Milestone', project: project_2)
+        create(:closed_milestone, title: 'Closed Group Milestone', project: project_2)
+        create(:closed_milestone, title: 'Active Group Milestone', group: group_1)
+        create(:closed_milestone, title: 'Closed Group Milestone', group: group_1)
+        create(:closed_milestone, title: 'Active Group Milestone', group: group_2)
+        create(:closed_milestone, title: 'Closed Group Milestone', group: group_2)
+      end
+
+      it 'returns the quantity of milestones in each possible state' do
+        expected_count = { opened: 5, closed: 6, all: 11 }
+
+        count = described_class.states_count(Project.all, Group.all)
+        expect(count).to eq(expected_count)
+      end
+    end
+
+    context 'when the projects do not have milestones' do
+      it 'returns 0 as the quantity of global milestones in each state' do
+        expected_count = { opened: 0, closed: 0, all: 0 }
+
+        count = described_class.states_count([project])
+
+        expect(count).to eq(expected_count)
+      end
+    end
+  end
 end