Test controllers if they allow to keep artifacts

app/controllers/projects/artifacts_controller.rb

 class Projects::ArtifactsController < Projects::ApplicationController
   layout 'project'
   before_action :authorize_read_build!
+  before_action :authorize_update_build!, only: [:keep]
   before_action :validate_artifacts!
 
   def download

spec/features/builds_spec.rb

@@ -97,6 +97,48 @@ describe "Builds" do
       end
     end
 
+    context 'Artifacts expire date' do
+      before do
+        @build.update_attributes(artifacts_file: artifacts_file, artifacts_expire_at: expire_at)
+        visit namespace_project_build_path(@project.namespace, @project, @build)
+      end
+
+      context 'no expire date defined' do
+        let(:expire_at) { nil }
+
+        it 'should not have the Keep button' do
+          page.within('.artifacts') do
+            expect(page).not_to have_content 'Keep'
+          end
+        end
+      end
+
+      context 'when expire date is defined' do
+        let(:expire_at) { Time.now + 7.days }
+
+        it 'should keep artifacts when Keep button is clicked' do
+          page.within('.artifacts') do
+            expect(page).to have_content 'The artifacts will be removed'
+            click_link 'Keep'
+          end
+
+          expect(page).not_to have_link 'Keep'
+          expect(page).not_to have_content 'The artifacts will be removed'
+        end
+      end
+
+      context 'when artifacts expired' do
+        let(:expire_at) { Time.now - 7.days }
+
+        it 'should not have the Keep button' do
+          page.within('.artifacts') do
+            expect(page).to have_content 'The artifacts were removed'
+            expect(page).not_to have_link 'Keep'
+          end
+        end
+      end
+    end
+
     context 'Build raw trace' do
       before do
         @build.run!
@@ -108,6 +150,8 @@ describe "Builds" do
         expect(page).to have_link 'Raw'
       end
     end
+
+    context ''
   end
 
   describe "POST /:project/builds/:id/cancel" do

spec/models/build_spec.rb

@@ -397,9 +397,32 @@ describe Ci::Build, models: true do
     context 'artifacts archive exists' do
       let(:build) { create(:ci_build, :artifacts) }
       it { is_expected.to be_truthy }
+
+      context 'is expired' do
+        before { build.update(artifacts_expire_at: Time.now - 7.days)  }
+        it { is_expected.to be_falsy }
+      end
+
+      context 'is not expired' do
+        before { build.update(artifacts_expire_at: Time.now + 7.days)  }
+        it { is_expected.to be_truthy }
       end
     end
+  end
+
+  describe '#artifacts_expired?' do
+    subject { build.artifacts_expired? }
 
+    context 'is expired' do
+      before { build.update(artifacts_expire_at: Time.now - 7.days)  }
+      it { is_expected.to be_falsy }
+    end
+
+    context 'is not expired' do
+      before { build.update(artifacts_expire_at: Time.now + 7.days)  }
+      it { is_expected.to be_truthy }
+    end
+  end
 
   describe '#artifacts_metadata?' do
     subject { build.artifacts_metadata? }
@@ -412,7 +435,6 @@ describe Ci::Build, models: true do
       it { is_expected.to be_truthy }
     end
   end
-
   describe '#repo_url' do
     let(:build) { create(:ci_build) }
     let(:project) { build.project }
@@ -427,6 +449,47 @@ describe Ci::Build, models: true do
     it { is_expected.to include(project.web_url[7..-1]) }
   end
 
+  describe '#artifacts_expire_in' do
+    subject { build.artifacts_expire_in }
+    it { is_expected.to be_nil }
+
+    context 'when artifacts_expire_at is specified' do
+      let(:expire_at) { Time.now + 7.days }
+
+      before { build.artifacts_expire_at = expire_at }
+
+      it { is_expected.to be_within(5).of(expire_at - Time.now) }
+    end
+  end
+
+  describe '#artifacts_expire_in=' do
+    subject { build.artifacts_expire_in }
+
+    it 'when assigning valid duration' do
+      build.artifacts_expire_in = '7 days'
+      is_expected.to be_within(10).of(7.days.to_i)
+    end
+
+    it 'when assigning invalid duration' do
+      expect{ build.artifacts_expire_in = '7 elephants' }.not_to raise_error
+      is_expected.to be_nil
+    end
+
+    it 'when resseting value' do
+      build.artifacts_expire_in = nil
+      is_expected.to be_nil
+    end
+  end
+
+  describe '#keep_artifacts!' do
+    let(:build) { create(:ci_build, artifacts_expire_at: Time.now + 7.days) }
+
+    it 'to reset expire_at' do
+      build.keep_artifacts!
+      expect(build.artifacts_expire_at).to be_nil
+    end
+  end
+
   describe '#depends_on_builds' do
     let!(:build) { create(:ci_build, pipeline: pipeline, name: 'build', stage_idx: 0, stage: 'build') }
     let!(:rspec_test) { create(:ci_build, pipeline: pipeline, name: 'rspec', stage_idx: 1, stage: 'test') }