Merge branch 'pipeline-stage' into 'master'

Refine pipeline stages

## What does this MR do?

Introduces a concept of `Ci::Stage` to make it easier to have detailed statuses.

## Why was this MR needed?

This is needed to simplify the handling of `Ci::Statuses` and make the `Stage` actual concept in code:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7889

See merge request !7927

app/models/ci/pipeline.rb

@@ -21,8 +21,6 @@ module Ci
 
     after_create :keep_around_commits, unless: :importing?
 
-    delegate :stages, to: :statuses
-
     state_machine :status, initial: :created do
       event :enqueue do
         transition created: :pending
@@ -98,17 +96,35 @@ module Ci
       sha[0...8]
     end
 
-    def self.stages
-      # We use pluck here due to problems with MySQL which doesn't allow LIMIT/OFFSET in queries
-      CommitStatus.where(pipeline: pluck(:id)).stages
-    end
-
     def self.total_duration
       where.not(duration: nil).sum(:duration)
     end
 
-    def stages_with_latest_statuses
-      statuses.latest.includes(project: :namespace).order(:stage_idx).group_by(&:stage)
+    def stages_count
+      statuses.select(:stage).distinct.count
+    end
+
+    def stages_name
+      statuses.order(:stage_idx).distinct.
+        pluck(:stage, :stage_idx).map(&:first)
+    end
+
+    def stages
+      status_sql = statuses.latest.where('stage=sg.stage').status_sql
+
+      stages_query = statuses.group('stage').select(:stage)
+                       .order('max(stage_idx)')
+
+      stages_with_statuses = CommitStatus.from(stages_query, :sg).
+        pluck('sg.stage', status_sql)
+
+      stages_with_statuses.map do |stage|
+        Ci::Stage.new(self, name: stage.first, status: stage.last)
+      end
+    end
+
+    def artifacts
+      builds.latest.with_artifacts_not_expired
     end
 
     def project_id

app/models/ci/stage.rb

+module Ci
+  # Currently this is artificial object, constructed dynamically
+  # We should migrate this object to actual database record in the future
+  class Stage
+    include StaticModel
+
+    attr_reader :pipeline, :name
+
+    delegate :project, to: :pipeline
+
+    def initialize(pipeline, name:, status: nil)
+      @pipeline = pipeline
+      @name = name
+      @status = status
+    end
+
+    def to_param
+      name
+    end
+
+    def status
+      @status ||= statuses.latest.status
+    end
+
+    def detailed_status
+      Gitlab::Ci::Status::Stage::Factory.new(self).fabricate!
+    end
+
+    def statuses
+      @statuses ||= pipeline.statuses.where(stage: name)
+    end
+
+    def builds
+      @builds ||= pipeline.builds.where(stage: name)
+    end
+  end
+end

app/models/commit_status.rb

@@ -31,18 +31,13 @@ class CommitStatus < ActiveRecord::Base
   end
 
   scope :exclude_ignored, -> do
-    quoted_when = connection.quote_column_name('when')
     # We want to ignore failed_but_allowed jobs
     where("allow_failure = ? OR status IN (?)",
-      false, all_state_names - [:failed, :canceled]).
-      # We want to ignore skipped manual jobs
-      where("#{quoted_when} <> ? OR status <> ?", 'manual', 'skipped').
-      # We want to ignore skipped on_failure
-      where("#{quoted_when} <> ? OR status <> ?", 'on_failure', 'skipped')
+      false, all_state_names - [:failed, :canceled])
   end
 
-  scope :latest_ci_stages, -> { latest.ordered.includes(project: :namespace) }
-  scope :retried_ci_stages, -> { retried.ordered.includes(project: :namespace) }
+  scope :latest_ordered, -> { latest.ordered.includes(project: :namespace) }
+  scope :retried_ordered, -> { retried.ordered.includes(project: :namespace) }
 
   state_machine :status do
     event :enqueue do
@@ -117,20 +112,6 @@ class CommitStatus < ActiveRecord::Base
     name.gsub(/\d+[\s:\/\\]+\d+\s*/, '').strip
   end
 
-  def self.stages
-    # We group by stage name, but order stages by theirs' index
-    unscoped.from(all, :sg).group('stage').order('max(stage_idx)', 'stage').pluck('sg.stage')
-  end
-
-  def self.stages_status
-    # We execute subquery for each stage to calculate a stage status
-    statuses = unscoped.from(all, :sg).group('stage').pluck('sg.stage', all.where('stage=sg.stage').status_sql)
-    statuses.inject({}) do |h, k|
-      h[k.first] = k.last
-      h
-    end
-  end
-
   def failed_but_allowed?
     allow_failure? && (failed? || canceled?)
   end

app/models/concerns/has_status.rb

@@ -4,7 +4,7 @@ module HasStatus
   AVAILABLE_STATUSES = %w[created pending running success failed canceled skipped]
   STARTED_STATUSES = %w[running success failed skipped]
   ACTIVE_STATUSES = %w[pending running]
-  COMPLETED_STATUSES = %w[success failed canceled]
+  COMPLETED_STATUSES = %w[success failed canceled skipped]
   ORDERED_STATUSES = %w[failed pending running canceled success skipped]
 
   class_methods do
@@ -23,9 +23,10 @@ module HasStatus
       canceled = scope.canceled.select('count(*)').to_sql
 
       "(CASE
+        WHEN (#{builds})=(#{skipped}) THEN 'skipped'
         WHEN (#{builds})=(#{success}) THEN 'success'
         WHEN (#{builds})=(#{created}) THEN 'created'
-        WHEN (#{builds})=(#{success})+(#{skipped}) THEN 'skipped'
+        WHEN (#{builds})=(#{success})+(#{skipped}) THEN 'success'
         WHEN (#{builds})=(#{success})+(#{skipped})+(#{canceled}) THEN 'canceled'
         WHEN (#{builds})=(#{created})+(#{skipped})+(#{pending}) THEN 'pending'
         WHEN (#{running})+(#{pending})+(#{created})>0 THEN 'running'

app/services/ci/process_pipeline_service.rb

@@ -44,11 +44,11 @@ module Ci
     def valid_statuses_for_when(value)
       case value
       when 'on_success'
-        %w[success]
+        %w[success skipped]
       when 'on_failure'
         %w[failed]
       when 'always'
-        %w[success failed]
+        %w[success failed skipped]
       else
         []
       end

app/views/notify/pipeline_success_email.html.haml

@@ -133,7 +133,7 @@
                         %tr.success-message
                           %td{style: "font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;color:#333333;font-size:15px;font-weight:400;line-height:1.4;padding:15px 5px;text-align:center;"}
                             - build_count = @pipeline.statuses.latest.size
-                            - stage_count = @pipeline.stages.size
+                            - stage_count = @pipeline.stages_count
                             Pipeline
                             %a{href: pipeline_url(@pipeline), style: "color:#3777b0;text-decoration:none;"}
                               = "\##{@pipeline.id}"

app/views/notify/pipeline_success_email.text.erb

@@ -16,7 +16,7 @@ Commit Author: <%= commit.author_name %>
 <% end -%>
 
 <% build_count = @pipeline.statuses.latest.size -%>
-<% stage_count = @pipeline.stages.size -%>
+<% stage_count = @pipeline.stages_count -%>
 Pipeline #<%= @pipeline.id %> ( <%= pipeline_url(@pipeline) %> ) successfully completed <%= build_count %> <%= 'build'.pluralize(build_count) %> in <%= stage_count %> <%= 'stage'.pluralize(stage_count) %>.
 
 You're receiving this email because of your account on <%= Gitlab.config.gitlab.host %>.

app/views/projects/builds/_sidebar.html.haml

@@ -111,7 +111,7 @@
           %span.label.label-primary
             = tag
 
-    - if @build.pipeline.stages.many?
+    - if @build.pipeline.stages_count > 1
       .dropdown.build-dropdown
         .title Stage
         %button.dropdown-menu-toggle{type: 'button', 'data-toggle' => 'dropdown'}
@@ -120,7 +120,7 @@
         %ul.dropdown-menu
           - @build.pipeline.stages.each do |stage|
             %li
-              %a.stage-item= stage
+              %a.stage-item= stage.name
 
   .builds-container
     - HasStatus::ORDERED_STATUSES.each do |build_status|

app/views/projects/ci/builds/_build.html.haml

@@ -104,9 +104,9 @@
           = link_to cancel_namespace_project_build_path(build.project.namespace, build.project, build, return_to: request.original_url), method: :post, title: 'Cancel', class: 'btn btn-build' do
             = icon('remove', class: 'cred')
         - elsif allow_retry
-          - if build.retryable?
-            = link_to retry_namespace_project_build_path(build.project.namespace, build.project, build, return_to: request.original_url), method: :post, title: 'Retry', class: 'btn btn-build' do
-              = icon('repeat')
-          - elsif build.playable? && !admin
+          - if build.playable? && !admin
             = link_to play_namespace_project_build_path(build.project.namespace, build.project, build, return_to: request.original_url), method: :post, title: 'Play', class: 'btn btn-build' do
               = custom_icon('icon_play')
+          - elsif build.retryable?
+            = link_to retry_namespace_project_build_path(build.project.namespace, build.project, build, return_to: request.original_url), method: :post, title: 'Retry', class: 'btn btn-build' do
+              = icon('repeat')

app/views/projects/ci/pipelines/_pipeline.html.haml

@@ -43,15 +43,13 @@
       - else
         Cant find HEAD commit for this branch
 
-  - stages_status = pipeline.statuses.latest.stages_status
   %td.stage-cell
-    - stages.each do |stage|
-      - status = stages_status[stage]
-      - tooltip = "#{stage.titleize}: #{status || 'not found'}"
-      - if status
+    - pipeline.stages.each do |stage|
+      - if stage.status
+        - tooltip = "#{stage.name.titleize}: #{stage.status || 'not found'}"
         .stage-container
-          = link_to namespace_project_pipeline_path(pipeline.project.namespace, pipeline.project, pipeline.id, anchor: stage), class: "has-tooltip ci-status-icon-#{status}", title: tooltip do
-            = ci_icon_for_status(status)
+          = link_to namespace_project_pipeline_path(pipeline.project.namespace, pipeline.project, pipeline.id, anchor: stage.name), class: "has-tooltip ci-status-icon-#{stage.status}", title: tooltip do
+            = ci_icon_for_status(stage.status)
 
   %td
     - if pipeline.duration

app/views/projects/commit/_ci_stage.html.haml

-%tr
-  %th{colspan: 10}
-    %strong
-      %a{name: stage}
-      - status = statuses.latest.status
-      %span{class: "ci-status-link ci-status-icon-#{status}"}
-        = ci_icon_for_status(status)
-      - if stage
-         
-        = stage.titleize
-  = render statuses.latest_ci_stages, coverage: @project.build_coverage_enabled?, stage: false, ref: false, pipeline_link: false, allow_retry: true
-  = render statuses.retried_ci_stages, coverage: @project.build_coverage_enabled?, stage: false, ref: false, pipeline_link: false, retried: true
-%tr
-  %td{colspan: 10}
-     

app/views/projects/commit/_pipeline.html.haml

@@ -24,20 +24,8 @@
           in
           = time_interval_in_words pipeline.duration
 
-  .row-content-block.build-content.middle-block.pipeline-graph.hidden
-    .pipeline-visualization
-      %ul.stage-column-list
-        - stages = pipeline.stages_with_latest_statuses
-        - stages.each do |stage, statuses|
-          %li.stage-column
-            .stage-name
-              %a{name: stage}
-              - if stage
-                = stage.titleize
-            .builds-container
-              %ul
-                = render "projects/commit/pipeline_stage", statuses: statuses
-
+  .row-content-block.build-content.middle-block.hidden
+    = render "projects/pipelines/graph", pipeline: pipeline
 
 - if pipeline.yaml_errors.present?
   .bs-callout.bs-callout-danger
@@ -62,5 +50,4 @@
         - if pipeline.project.build_coverage_enabled?
           %th Coverage
         %th
-    - pipeline.statuses.relevant.stages.each do |stage|
-      = render 'projects/commit/ci_stage', stage: stage, statuses: pipeline.statuses.relevant.where(stage: stage)
+    = render partial: "projects/stage/stage", collection: pipeline.stages, as: :stage

app/views/projects/commit/_pipeline_stage.html.haml

-- status_groups = statuses.sort_by(&:name).group_by(&:group_name)
-- status_groups.each do |group_name, grouped_statuses|
-  - if grouped_statuses.one?
-    - status = grouped_statuses.first
-    - is_playable = status.playable? && can?(current_user, :update_build, @project)
-    %li.build{ class: ("playable" if is_playable) }
-      .curve
-      .build-content
-        = render "projects/#{status.to_partial_path}_pipeline", subject: status
-  - else
-    %li.build
-      .curve
-      .dropdown.inline.build-content
-        = render "projects/commit/pipeline_status_group", name: group_name, subject: grouped_statuses

app/views/projects/commit/_pipelines_list.haml

@@ -12,4 +12,4 @@
           %th Stages
           %th
           %th
-        = render pipelines, commit_sha: true, stage: true, allow_retry: true, stages: pipelines.stages, show_commit: false
+        = render pipelines, commit_sha: true, stage: true, allow_retry: true, show_commit: false

app/views/projects/pipelines/_graph.html.haml

+- pipeline = local_assigns.fetch(:pipeline)
+.pipeline-visualization.pipeline-graph
+  %ul.stage-column-list
+    = render partial: "projects/stage/graph", collection: pipeline.stages, as: :stage

app/views/projects/pipelines/_with_tabs.html.haml

@@ -12,19 +12,8 @@
 
 .tab-content
   #js-tab-pipeline.tab-pane
-    .build-content.middle-block.pipeline-graph
-      .pipeline-visualization
-        %ul.stage-column-list
-          - stages = pipeline.stages_with_latest_statuses
-          - stages.each do |stage, statuses|
-            %li.stage-column
-              .stage-name
-                %a{name: stage}
-                - if stage
-                  = stage.titleize
-              .builds-container
-                %ul
-                  = render "projects/commit/pipeline_stage", statuses: statuses
+    .build-content.middle-block
+      = render "projects/pipelines/graph", pipeline: pipeline
 
   #js-tab-builds.tab-pane
     - if pipeline.yaml_errors.present?
@@ -50,5 +39,4 @@
             - if pipeline.project.build_coverage_enabled?
               %th Coverage
             %th
-        - pipeline.statuses.relevant.stages.each do |stage|
-          = render 'projects/commit/ci_stage', stage: stage, statuses: pipeline.statuses.relevant.where(stage: stage)
+        = render partial: "projects/stage/stage", collection: pipeline.stages, as: :stage

app/views/projects/pipelines/index.html.haml

@@ -37,7 +37,6 @@
           %span CI Lint
 
   %div.content-list.pipelines
-    - stages = @pipelines.stages
     - if @pipelines.blank?
       %div
         .nothing-here-block No pipelines to show
@@ -51,6 +50,6 @@
             %th Stages
             %th
             %th.hidden-xs
-          = render @pipelines, commit_sha: true, stage: true, allow_retry: true, stages: stages
+          = render @pipelines, commit_sha: true, stage: true, allow_retry: true
 
       = paginate @pipelines, theme: 'gitlab'

app/views/projects/stage/_graph.html.haml

+- stage = local_assigns.fetch(:stage)
+- statuses = stage.statuses.latest
+- status_groups = statuses.sort_by(&:name).group_by(&:group_name)
+%li.stage-column
+  .stage-name
+    %a{ name: stage.name }
+    = stage.name.titleize
+  .builds-container
+    %ul
+      - status_groups.each do |group_name, grouped_statuses|
+        - if grouped_statuses.one?
+          - status = grouped_statuses.first
+          - is_playable = status.playable? && can?(current_user, :update_build, @project)
+          %li.build{ class: ("playable" if is_playable) }
+            .curve
+            .build-content
+              = render "projects/#{status.to_partial_path}_pipeline", subject: status
+        - else
+          %li.build
+            .curve
+            .dropdown.inline.build-content
+              = render "projects/stage/in_stage_group", name: group_name, subject: grouped_statuses

app/views/projects/stage/_stage.html.haml

+%tr
+  %th{colspan: 10}
+    %strong
+      %a{ name: stage.name }
+      %span{class: "ci-status-link ci-status-icon-#{stage.status}"}
+        = ci_icon_for_status(stage.status)
+       
+      = stage.name.titleize
+= render stage.statuses.latest_ordered, coverage: @project.build_coverage_enabled?, stage: false, ref: false, pipeline_link: false, allow_retry: true
+= render stage.statuses.retried_ordered, coverage: @project.build_coverage_enabled?, stage: false, ref: false, pipeline_link: false, retried: true
+%tr
+  %td{colspan: 10}
+     

lib/gitlab/ci/status/factory.rb

+module Gitlab
+  module Ci
+    module Status
+      class Factory
+        attr_reader :subject
+
+        def initialize(subject)
+          @subject = subject
+        end
+
+        def fabricate!
+          if extended_status
+            extended_status.new(core_status)
+          else
+            core_status
+          end
+        end
+
+        private
+
+        def subject_status
+          @subject_status ||= subject.status
+        end
+
+        def core_status
+          Gitlab::Ci::Status
+            .const_get(subject_status.capitalize)
+            .new(subject)
+        end
+
+        def extended_status
+          @extended ||= extended_statuses.find do |status|
+            status.matches?(subject)
+          end
+        end
+
+        def extended_statuses
+          []
+        end
+      end
+    end
+  end
+end

lib/gitlab/ci/status/pipeline/factory.rb

@@ -2,35 +2,15 @@ module Gitlab
   module Ci
     module Status
       module Pipeline
-        class Factory
-          EXTENDED_STATUSES = [Pipeline::SuccessWithWarnings]
-
-          def initialize(pipeline)
-            @pipeline = pipeline
-            @status = pipeline.status || :created
-          end
-
-          def fabricate!
-            if extended_status
-              extended_status.new(core_status)
-            else
-              core_status
-            end
-          end
-
+        class Factory < Status::Factory
           private
 
-          def core_status
-            Gitlab::Ci::Status
-              .const_get(@status.capitalize)
-              .new(@pipeline)
-              .extend(Status::Pipeline::Common)
+          def extended_statuses
+            [Pipeline::SuccessWithWarnings]
           end
 
-          def extended_status
-            @extended ||= EXTENDED_STATUSES.find do |status|
-              status.matches?(@pipeline)
-            end
+          def core_status
+            super.extend(Status::Pipeline::Common)
           end
         end
       end

lib/gitlab/ci/status/stage/common.rb

+module Gitlab
+  module Ci
+    module Status
+      module Stage
+        module Common
+          def has_details?
+            true
+          end
+
+          def details_path
+            namespace_project_pipeline_path(@subject.project.namespace,
+                                            @subject.project,
+                                            @subject.pipeline,
+                                            anchor: @subject.name)
+          end
+
+          def has_action?
+            false
+          end
+        end
+      end
+    end
+  end
+end

lib/gitlab/ci/status/stage/factory.rb

+module Gitlab
+  module Ci
+    module Status
+      module Stage
+        class Factory < Status::Factory
+          private
+
+          def core_status
+            super.extend(Status::Stage::Common)
+          end
+        end
+      end
+    end
+  end
+end

lib/gitlab/data_builder/pipeline.rb

@@ -22,7 +22,7 @@ module Gitlab
           sha: pipeline.sha,
           before_sha: pipeline.before_sha,
           status: pipeline.status,
-          stages: pipeline.stages,
+          stages: pipeline.stages_name,
           created_at: pipeline.created_at,
           finished_at: pipeline.finished_at,
           duration: pipeline.duration

spec/factories/ci/stages.rb

+FactoryGirl.define do
+  factory :ci_stage, class: Ci::Stage do
+    transient do
+      name 'test'
+      status nil
+      pipeline factory: :ci_empty_pipeline
+    end
+
+    initialize_with do
+      Ci::Stage.new(pipeline, name: name, status: status)
+    end
+  end
+end

spec/lib/gitlab/ci/status/factory_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Ci::Status::Factory do
+  subject do
+    described_class.new(object)
+  end
+
+  let(:status) { subject.fabricate! }
+
+  context 'when object has a core status' do
+    HasStatus::AVAILABLE_STATUSES.each do |core_status|
+      context "when core status is #{core_status}" do
+        let(:object) { double(status: core_status) }
+
+        it "fabricates a core status #{core_status}" do
+          expect(status).to be_a(
+            Gitlab::Ci::Status.const_get(core_status.capitalize))
+        end
+      end
+    end
+  end
+end

spec/lib/gitlab/ci/status/stage/common_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Ci::Status::Stage::Common do
+  let(:pipeline) { create(:ci_empty_pipeline) }
+  let(:stage) { build(:ci_stage, pipeline: pipeline, name: 'test') }
+
+  subject do
+    Class.new(Gitlab::Ci::Status::Core)
+      .new(stage).extend(described_class)
+  end
+
+  it 'does not have action' do
+    expect(subject).not_to have_action
+  end
+
+  it 'has details' do
+    expect(subject).to have_details
+  end
+
+  it 'links to the pipeline details page' do
+    expect(subject.details_path)
+      .to include "pipelines/#{pipeline.id}"
+    expect(subject.details_path)
+      .to include "##{stage.name}"
+  end
+end

spec/lib/gitlab/ci/status/stage/factory_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Ci::Status::Stage::Factory do
+  let(:pipeline) { create(:ci_empty_pipeline) }
+  let(:stage) { build(:ci_stage, pipeline: pipeline, name: 'test') }
+
+  subject do
+    described_class.new(stage)
+  end
+
+  let(:status) do
+    subject.fabricate!
+  end
+
+  context 'when stage has a core status' do
+    HasStatus::AVAILABLE_STATUSES.each do |core_status|
+      context "when core status is #{core_status}" do
+        before do
+          create(:ci_build, pipeline: pipeline, stage: 'test', status: core_status)
+          create(:commit_status, pipeline: pipeline, stage: 'test', status: core_status)
+          create(:ci_build, pipeline: pipeline, stage: 'build', status: :failed)
+        end
+
+        it "fabricates a core status #{core_status}" do
+          expect(status).to be_a(
+            Gitlab::Ci::Status.const_get(core_status.capitalize))
+        end
+
+        it 'extends core status with common stage methods' do
+          expect(status).to have_details
+          expect(status.details_path).to include "pipelines/#{pipeline.id}"
+          expect(status.details_path).to include "##{stage.name}"
+        end
+      end
+    end
+  end
+end

spec/models/ci/pipeline_spec.rb

@@ -20,8 +20,6 @@ describe Ci::Pipeline, models: true do
   it { is_expected.to respond_to :git_author_email }
   it { is_expected.to respond_to :short_sha }
 
-  it { is_expected.to delegate_method(:stages).to(:statuses) }
-
   describe '#valid_commit_sha' do
     context 'commit.sha can not start with 00000000' do
       before do
@@ -125,16 +123,55 @@ describe Ci::Pipeline, models: true do
   end
 
   describe '#stages' do
-    let(:pipeline2) { FactoryGirl.create :ci_pipeline, project: project }
-    subject { CommitStatus.where(pipeline: [pipeline, pipeline2]).stages }
-
     before do
-      FactoryGirl.create :ci_build, pipeline: pipeline2, stage: 'test', stage_idx: 1
-      FactoryGirl.create :ci_build, pipeline: pipeline, stage: 'build', stage_idx: 0
+      create(:commit_status, pipeline: pipeline, stage: 'build', name: 'linux', stage_idx: 0, status: 'success')
+      create(:commit_status, pipeline: pipeline, stage: 'build', name: 'mac', stage_idx: 0, status: 'failed')
+      create(:commit_status, pipeline: pipeline, stage: 'deploy', name: 'staging', stage_idx: 2, status: 'running')
+      create(:commit_status, pipeline: pipeline, stage: 'test', name: 'rspec', stage_idx: 1, status: 'success')
+    end
+
+    subject { pipeline.stages }
+
+    context 'stages list' do
+      it 'returns ordered list of stages' do
+        expect(subject.map(&:name)).to eq(%w[build test deploy])
+      end
+    end
+
+    it 'returns a valid number of stages' do
+      expect(pipeline.stages_count).to eq(3)
+    end
+
+    it 'returns a valid names of stages' do
+      expect(pipeline.stages_name).to eq(['build', 'test', 'deploy'])
     end
 
-    it 'return all stages' do
-      is_expected.to eq(%w(build test))
+    context 'stages with statuses' do
+      let(:statuses) do
+        subject.map do |stage|
+          [stage.name, stage.status]
+        end
+      end
+
+      it 'returns list of stages with statuses' do
+        expect(statuses).to eq([['build', 'failed'],
+                                ['test', 'success'],
+                                ['deploy', 'running']
+                               ])
+      end
+
+      context 'when build is retried' do
+        before do
+          create(:commit_status, pipeline: pipeline, stage: 'build', name: 'mac', stage_idx: 0, status: 'success')
+        end
+
+        it 'ignores the previous state' do
+          expect(statuses).to eq([['build', 'success'],
+                                  ['test', 'success'],
+                                  ['deploy', 'running']
+                                 ])
+        end
+      end
     end
   end
 

spec/models/ci/stage_spec.rb

+require 'spec_helper'
+
+describe Ci::Stage, models: true do
+  let(:stage) { build(:ci_stage) }
+  let(:pipeline) { stage.pipeline }
+  let(:stage_name) { stage.name }
+
+  describe '#expectations' do
+    subject { stage }
+
+    it { is_expected.to include_module(StaticModel) }
+
+    it { is_expected.to respond_to(:pipeline) }
+    it { is_expected.to respond_to(:name) }
+
+    it { is_expected.to delegate_method(:project).to(:pipeline) }
+  end
+
+  describe '#statuses' do
+    let!(:stage_build) { create_job(:ci_build) }
+    let!(:commit_status) { create_job(:commit_status) }
+    let!(:other_build) { create_job(:ci_build, stage: 'other stage') }
+
+    subject { stage.statuses }
+
+    it "returns only matching statuses" do
+      is_expected.to contain_exactly(stage_build, commit_status)
+    end
+  end
+
+  describe '#builds' do
+    let!(:stage_build) { create_job(:ci_build) }
+    let!(:commit_status) { create_job(:commit_status) }
+
+    subject { stage.builds }
+
+    it "returns only builds" do
+      is_expected.to contain_exactly(stage_build)
+    end
+  end
+
+  describe '#status' do
+    subject { stage.status }
+
+    context 'if status is already defined' do
+      let(:stage) { build(:ci_stage, status: 'success') }
+
+      it "returns defined status" do
+        is_expected.to eq('success')
+      end
+    end
+
+    context 'if status has to be calculated' do
+      let!(:stage_build) { create_job(:ci_build, status: :failed) }
+
+      it "returns status of a build" do
+        is_expected.to eq('failed')
+      end
+
+      context 'and builds are retried' do
+        let!(:new_build) { create_job(:ci_build, status: :success) }
+
+        it "returns status of latest build" do
+          is_expected.to eq('success')
+        end
+      end
+    end
+  end
+
+  describe '#detailed_status' do
+    subject { stage.detailed_status }
+
+    context 'when build is created' do
+      let!(:stage_build) { create_job(:ci_build, status: :created) }
+
+      it 'returns detailed status for created stage' do
+        expect(subject.text).to eq 'created'
+      end
+    end
+
+    context 'when build is pending' do
+      let!(:stage_build) { create_job(:ci_build, status: :pending) }
+
+      it 'returns detailed status for pending stage' do
+        expect(subject.text).to eq 'pending'
+      end
+    end
+
+    context 'when build is running' do
+      let!(:stage_build) { create_job(:ci_build, status: :running) }
+
+      it 'returns detailed status for running stage' do
+        expect(subject.text).to eq 'running'
+      end
+    end
+
+    context 'when build is successful' do
+      let!(:stage_build) { create_job(:ci_build, status: :success) }
+
+      it 'returns detailed status for successful stage' do
+        expect(subject.text).to eq 'passed'
+      end
+    end
+
+    context 'when build is failed' do
+      let!(:stage_build) { create_job(:ci_build, status: :failed) }
+
+      it 'returns detailed status for failed stage' do
+        expect(subject.text).to eq 'failed'
+      end
+    end
+
+    context 'when build is canceled' do
+      let!(:stage_build) { create_job(:ci_build, status: :canceled) }
+
+      it 'returns detailed status for canceled stage' do
+        expect(subject.text).to eq 'canceled'
+      end
+    end
+
+    context 'when build is skipped' do
+      let!(:stage_build) { create_job(:ci_build, status: :skipped) }
+
+      it 'returns detailed status for skipped stage' do
+        expect(subject.text).to eq 'skipped'
+      end
+    end
+  end
+
+  def create_job(type, status: 'success', stage: stage_name)
+    create(type, pipeline: pipeline, stage: stage, status: status)
+  end
+end

spec/models/commit_status_spec.rb

@@ -175,7 +175,7 @@ describe CommitStatus, models: true do
     end
 
     it 'returns statuses without what we want to ignore' do
-      is_expected.to eq(statuses.values_at(1, 2, 4, 5, 6, 8, 9))
+      is_expected.to eq(statuses.values_at(0, 1, 2, 3, 4, 5, 6, 8, 9))
     end
   end
 
@@ -200,49 +200,6 @@ describe CommitStatus, models: true do
     end
   end
 
-  describe '#stages' do
-    before do
-      create :commit_status, pipeline: pipeline, stage: 'build', name: 'linux', stage_idx: 0, status: 'success'
-      create :commit_status, pipeline: pipeline, stage: 'build', name: 'mac', stage_idx: 0, status: 'failed'
-      create :commit_status, pipeline: pipeline, stage: 'deploy', name: 'staging', stage_idx: 2, status: 'running'
-      create :commit_status, pipeline: pipeline, stage: 'test', name: 'rspec', stage_idx: 1, status: 'success'
-    end
-
-    context 'stages list' do
-      subject { CommitStatus.where(pipeline: pipeline).stages }
-
-      it 'returns ordered list of stages' do
-        is_expected.to eq(%w[build test deploy])
-      end
-    end
-
-    context 'stages with statuses' do
-      subject { CommitStatus.where(pipeline: pipeline).latest.stages_status }
-
-      it 'returns list of stages with statuses' do
-        is_expected.to eq({
-          'build' => 'failed',
-          'test' => 'success',
-          'deploy' => 'running'
-        })
-      end
-
-      context 'when build is retried' do
-        before do
-          create :commit_status, pipeline: pipeline, stage: 'build', name: 'mac', stage_idx: 0, status: 'success'
-        end
-
-        it 'ignores a previous state' do
-          is_expected.to eq({
-            'build' => 'success',
-            'test' => 'success',
-            'deploy' => 'running'
-          })
-        end
-      end
-    end
-  end
-
   describe '#commit' do
     it 'returns commit pipeline has been created for' do
       expect(commit_status.commit).to eq project.commit

spec/models/concerns/has_status_spec.rb

@@ -48,7 +48,7 @@ describe HasStatus do
           [create(type, status: :failed, allow_failure: true)]
         end
 
-        it { is_expected.to eq 'success' }
+        it { is_expected.to eq 'skipped' }
       end
 
       context 'success and canceled' do