Merge branch 'ce_upstream' into 'master'

CE upstream

CE changes https://gitlab.com/gitlab-org/gitlab-ce/compare/d636efbe26ee51030bb108d889c2ef867570358a...0c36b810abede73b3cf59f951e7467dbac54ec98?expand_all_diffs=1

See merge request !850

spec/models/concerns/issuable_spec.rb

@@ -358,4 +358,25 @@ describe Issue, "Issuable" do
       expect(Issue.with_label([bug.title, enhancement.title])).to match_array([issue2])
     end
   end
+
+  describe '#assignee_or_author?' do
+    let(:user) { build(:user, id: 1) }
+    let(:issue) { build(:issue) }
+
+    it 'returns true for a user that is assigned to an issue' do
+      issue.assignee = user
+
+      expect(issue.assignee_or_author?(user)).to eq(true)
+    end
+
+    it 'returns true for a user that is the author of an issue' do
+      issue.author = user
+
+      expect(issue.assignee_or_author?(user)).to eq(true)
+    end
+
+    it 'returns false for a user that is not the assignee or author' do
+      expect(issue.assignee_or_author?(user)).to eq(false)
+    end
+  end
 end

spec/models/external_issue_spec.rb

 require 'spec_helper'
 describe ExternalIssue, models: true do
-  let(:project) { double('project', to_reference: 'namespace1/project1') }
+  let(:project) { double('project', id: 1, to_reference: 'namespace1/project1') }
   let(:issue)   { described_class.new('EXT-1234', project) }
   describe 'modules' do
@@ -36,4 +36,10 @@ describe ExternalIssue, models: true do
       end
     end
   end
+
+  describe '#project_id' do
+    it 'returns the ID of the project' do
+      expect(issue.project_id).to eq(project.id)
+    end
+  end
 end

spec/models/issue_collection_spec.rb

+require 'spec_helper'
+
+describe IssueCollection do
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let(:issue1) { create(:issue, project: project) }
+  let(:issue2) { create(:issue, project: project) }
+  let(:collection) { described_class.new([issue1, issue2]) }
+
+  describe '#collection' do
+    it 'returns the issues in the same order as the input Array' do
+      expect(collection.collection).to eq([issue1, issue2])
+    end
+  end
+
+  describe '#updatable_by_user' do
+    context 'using an admin user' do
+      it 'returns all issues' do
+        user = create(:admin)
+
+        expect(collection.updatable_by_user(user)).to eq([issue1, issue2])
+      end
+    end
+
+    context 'using a user that has no access to the project' do
+      it 'returns no issues when the user is not an assignee or author' do
+        expect(collection.updatable_by_user(user)).to be_empty
+      end
+
+      it 'returns the issues the user is assigned to' do
+        issue1.assignee = user
+
+        expect(collection.updatable_by_user(user)).to eq([issue1])
+      end
+
+      it 'returns the issues for which the user is the author' do
+        issue1.author = user
+
+        expect(collection.updatable_by_user(user)).to eq([issue1])
+      end
+    end
+
+    context 'using a user that has reporter access to the project' do
+      it 'returns the issues of the project' do
+        project.team << [user, :reporter]
+
+        expect(collection.updatable_by_user(user)).to eq([issue1, issue2])
+      end
+    end
+
+    context 'using a user that is the owner of a project' do
+      it 'returns the issues of the project' do
+        expect(collection.updatable_by_user(project.namespace.owner)).
+          to eq([issue1, issue2])
+      end
+    end
+  end
+
+  describe '#visible_to' do
+    it 'is an alias for updatable_by_user' do
+      updatable_by_user = described_class.instance_method(:updatable_by_user)
+      visible_to = described_class.instance_method(:visible_to)
+
+      expect(visible_to).to eq(updatable_by_user)
+    end
+  end
+end

spec/models/project_spec.rb

@@ -304,7 +304,7 @@ describe Project, models: true do
     end
   end
-  xdescribe "#new_issue_address" do
+  describe "#new_issue_address" do
     let(:project) { create(:empty_project, path: "somewhere") }
     let(:user) { create(:user) }
@@ -314,8 +314,7 @@ describe Project, models: true do
       end
       it 'returns the address to create a new issue' do
-        token = user.authentication_token
-        address = "p+#{project.namespace.path}/#{project.path}+#{token}@gl.ab"
+        address = "p+#{project.path_with_namespace}+#{user.incoming_email_token}@gl.ab"
         expect(project.new_issue_address(user)).to eq(address)
       end

spec/models/repository_spec.rb

@@ -362,6 +362,19 @@ describe Repository, models: true do
       expect(results.first).not_to start_with('fatal:')
     end
+    it 'properly handles when query is not present' do
+      results = repository.search_files('', 'master')
+
+      expect(results).to match_array([])
+    end
+
+    it 'properly handles query when repo is empty' do
+      repository = create(:empty_project).repository
+      results = repository.search_files('test', 'master')
+
+      expect(results).to match_array([])
+    end
+
     describe 'result' do
       subject { results.first }

spec/models/user_spec.rb

@@ -1240,4 +1240,40 @@ describe User, models: true do
       expect(user.viewable_starred_projects).not_to include(private_project)
     end
   end
+
+  describe '#projects_with_reporter_access_limited_to' do
+    let(:project1) { create(:project) }
+    let(:project2) { create(:project) }
+    let(:user) { create(:user) }
+
+    before do
+      project1.team << [user, :reporter]
+      project2.team << [user, :guest]
+    end
+
+    it 'returns the projects when using a single project ID' do
+      projects = user.projects_with_reporter_access_limited_to(project1.id)
+
+      expect(projects).to eq([project1])
+    end
+
+    it 'returns the projects when using an Array of project IDs' do
+      projects = user.projects_with_reporter_access_limited_to([project1.id])
+
+      expect(projects).to eq([project1])
+    end
+
+    it 'returns the projects when using an ActiveRecord relation' do
+      projects = user.
+        projects_with_reporter_access_limited_to(Project.select(:id))
+
+      expect(projects).to eq([project1])
+    end
+
+    it 'does not return projects you do not have reporter access to' do
+      projects = user.projects_with_reporter_access_limited_to(project2.id)
+
+      expect(projects).to be_empty
+    end
+  end
 end

spec/policies/issue_policy_spec.rb

+require 'spec_helper'
+
+describe IssuePolicy, models: true do
+  let(:user) { create(:user) }
+
+  describe '#rules' do
+    context 'using a regular issue' do
+      let(:project) { create(:project, :public) }
+      let(:issue) { create(:issue, project: project) }
+      let(:policies) { described_class.abilities(user, issue).to_set }
+
+      context 'with a regular user' do
+        it 'includes the read_issue permission' do
+          expect(policies).to include(:read_issue)
+        end
+
+        it 'does not include the admin_issue permission' do
+          expect(policies).not_to include(:admin_issue)
+        end
+
+        it 'does not include the update_issue permission' do
+          expect(policies).not_to include(:update_issue)
+        end
+      end
+
+      context 'with a user that is a project reporter' do
+        before do
+          project.team << [user, :reporter]
+        end
+
+        it 'includes the read_issue permission' do
+          expect(policies).to include(:read_issue)
+        end
+
+        it 'includes the admin_issue permission' do
+          expect(policies).to include(:admin_issue)
+        end
+
+        it 'includes the update_issue permission' do
+          expect(policies).to include(:update_issue)
+        end
+      end
+
+      context 'with a user that is a project guest' do
+        before do
+          project.team << [user, :guest]
+        end
+
+        it 'includes the read_issue permission' do
+          expect(policies).to include(:read_issue)
+        end
+
+        it 'does not include the admin_issue permission' do
+          expect(policies).not_to include(:admin_issue)
+        end
+
+        it 'does not include the update_issue permission' do
+          expect(policies).not_to include(:update_issue)
+        end
+      end
+    end
+
+    context 'using a confidential issue' do
+      let(:issue) { create(:issue, :confidential) }
+
+      context 'with a regular user' do
+        let(:policies) { described_class.abilities(user, issue).to_set }
+
+        it 'does not include the read_issue permission' do
+          expect(policies).not_to include(:read_issue)
+        end
+
+        it 'does not include the admin_issue permission' do
+          expect(policies).not_to include(:admin_issue)
+        end
+
+        it 'does not include the update_issue permission' do
+          expect(policies).not_to include(:update_issue)
+        end
+      end
+
+      context 'with a user that is a project member' do
+        let(:policies) { described_class.abilities(user, issue).to_set }
+
+        before do
+          issue.project.team << [user, :reporter]
+        end
+
+        it 'includes the read_issue permission' do
+          expect(policies).to include(:read_issue)
+        end
+
+        it 'includes the admin_issue permission' do
+          expect(policies).to include(:admin_issue)
+        end
+
+        it 'includes the update_issue permission' do
+          expect(policies).to include(:update_issue)
+        end
+      end
+
+      context 'without a user' do
+        let(:policies) { described_class.abilities(nil, issue).to_set }
+
+        it 'does not include the read_issue permission' do
+          expect(policies).not_to include(:read_issue)
+        end
+
+        it 'does not include the admin_issue permission' do
+          expect(policies).not_to include(:admin_issue)
+        end
+
+        it 'does not include the update_issue permission' do
+          expect(policies).not_to include(:update_issue)
+        end
+      end
+    end
+  end
+end

spec/requests/api/labels_spec.rb

@@ -6,6 +6,7 @@ describe API::API, api: true  do
   let(:user) { create(:user) }
   let(:project) { create(:project, creator_id: user.id, namespace: user.namespace) }
   let!(:label1) { create(:label, title: 'label1', project: project) }
+  let!(:priority_label) { create(:label, title: 'bug', project: project, priority: 3) }
   before do
     project.team << [user, :master]
@@ -16,13 +17,27 @@ describe API::API, api: true  do
       group = create(:group)
       group_label = create(:group_label, group: group)
       project.update(group: group)
+      expected_keys = [
+        'id', 'name', 'color', 'description',
+        'open_issues_count', 'closed_issues_count', 'open_merge_requests_count',
+        'subscribed', 'priority'
+      ]
       get api("/projects/#{project.id}/labels", user)
       expect(response).to have_http_status(200)
       expect(json_response).to be_an Array
-      expect(json_response.size).to eq(2)
-      expect(json_response.map { |l| l['name'] }).to match_array([group_label.name, label1.name])
+      expect(json_response.size).to eq(3)
+      expect(json_response.first.keys).to match_array expected_keys
+      expect(json_response.map { |l| l['name'] }).to match_array([group_label.name, priority_label.name, label1.name])
+      expect(json_response.last['name']).to eq(label1.name)
+      expect(json_response.last['color']).to be_present
+      expect(json_response.last['description']).to be_nil
+      expect(json_response.last['open_issues_count']).to eq(0)
+      expect(json_response.last['closed_issues_count']).to eq(0)
+      expect(json_response.last['open_merge_requests_count']).to eq(0)
+      expect(json_response.last['priority']).to be_nil
+      expect(json_response.last['subscribed']).to be_falsey
     end
   end
@@ -31,21 +46,39 @@ describe API::API, api: true  do
       post api("/projects/#{project.id}/labels", user),
            name: 'Foo',
            color: '#FFAABB',
-           description: 'test'
+           description: 'test',
+           priority: 2
+
       expect(response).to have_http_status(201)
       expect(json_response['name']).to eq('Foo')
       expect(json_response['color']).to eq('#FFAABB')
       expect(json_response['description']).to eq('test')
+      expect(json_response['priority']).to eq(2)
     end
     it 'returns created label when only required params' do
       post api("/projects/#{project.id}/labels", user),
            name: 'Foo & Bar',
            color: '#FFAABB'
+
       expect(response.status).to eq(201)
       expect(json_response['name']).to eq('Foo & Bar')
       expect(json_response['color']).to eq('#FFAABB')
       expect(json_response['description']).to be_nil
+      expect(json_response['priority']).to be_nil
+    end
+
+    it 'creates a prioritized label' do
+      post api("/projects/#{project.id}/labels", user),
+           name: 'Foo & Bar',
+           color: '#FFAABB',
+           priority: 3
+
+      expect(response.status).to eq(201)
+      expect(json_response['name']).to eq('Foo & Bar')
+      expect(json_response['color']).to eq('#FFAABB')
+      expect(json_response['description']).to be_nil
+      expect(json_response['priority']).to eq(3)
     end
     it 'returns a 400 bad request if name not given' do
@@ -95,6 +128,15 @@ describe API::API, api: true  do
       expect(json_response['message']).to eq('Label already exists')
     end
+    it 'returns 400 for invalid priority' do
+      post api("/projects/#{project.id}/labels", user),
+           name: 'Foo',
+           color: '#FFAAFFFF',
+           priority: 'foo'
+
+      expect(response).to have_http_status(400)
+    end
+
     it 'returns 409 if label already exists in project' do
       post api("/projects/#{project.id}/labels", user),
            name: 'label1',
@@ -155,11 +197,43 @@ describe API::API, api: true  do
     it 'returns 200 if description is changed' do
       put api("/projects/#{project.id}/labels", user),
-          name: 'label1',
+          name: 'bug',
           description: 'test'
+
       expect(response).to have_http_status(200)
-      expect(json_response['name']).to eq(label1.name)
+      expect(json_response['name']).to eq(priority_label.name)
       expect(json_response['description']).to eq('test')
+      expect(json_response['priority']).to eq(3)
+    end
+
+    it 'returns 200 if priority is changed' do
+      put api("/projects/#{project.id}/labels", user),
+           name: 'bug',
+           priority: 10
+
+      expect(response.status).to eq(200)
+      expect(json_response['name']).to eq(priority_label.name)
+      expect(json_response['priority']).to eq(10)
+    end
+
+    it 'returns 200 if a priority is added' do
+      put api("/projects/#{project.id}/labels", user),
+           name: 'label1',
+           priority: 3
+
+      expect(response.status).to eq(200)
+      expect(json_response['name']).to eq(label1.name)
+      expect(json_response['priority']).to eq(3)
+    end
+
+    it 'returns 200 if the priority is removed' do
+      put api("/projects/#{project.id}/labels", user),
+          name: priority_label.name,
+          priority: nil
+
+      expect(response.status).to eq(200)
+      expect(json_response['name']).to eq(priority_label.name)
+      expect(json_response['priority']).to be_nil
     end
     it 'returns 404 if label does not exist' do
@@ -178,7 +252,7 @@ describe API::API, api: true  do
     it 'returns 400 if no new parameters given' do
       put api("/projects/#{project.id}/labels", user), name: 'label1'
       expect(response).to have_http_status(400)
-      expect(json_response['error']).to eq('new_name, color, description are missing, '\
+      expect(json_response['error']).to eq('new_name, color, description, priority are missing, '\
                                            'at least one parameter must be provided')
     end
@@ -206,6 +280,14 @@ describe API::API, api: true  do
       expect(response).to have_http_status(400)
       expect(json_response['message']['color']).to eq(['must be a valid color code'])
     end
+
+    it 'returns 400 for invalid priority' do
+      post api("/projects/#{project.id}/labels", user),
+           name: 'Foo',
+           priority: 'foo'
+
+      expect(response).to have_http_status(400)
+    end
   end
   describe "POST /projects/:id/labels/:label_id/subscription" do

spec/requests/api/system_hooks_spec.rb

@@ -52,6 +52,12 @@ describe API::API, api: true  do
       expect(response).to have_http_status(400)
     end
+    it "responds with 400 if url is invalid" do
+      post api("/hooks", admin), url: 'hp://mep.mep'
+
+      expect(response).to have_http_status(400)
+    end
+
     it "does not create new hook without url" do
       expect do
         post api("/hooks", admin)

spec/routing/routing_spec.rb

@@ -266,13 +266,13 @@ describe "Groups", "routing" do
   end
   it "also display group#show on the short path" do
-    allow(Group).to receive(:find_by_path).and_return(true)
+    allow(Group).to receive(:find_by).and_return(true)
     expect(get('/1')).to route_to('groups#show', id: '1')
   end
   it "also display group#show with dot in the path" do
-    allow(Group).to receive(:find_by_path).and_return(true)
+    allow(Group).to receive(:find_by).and_return(true)
     expect(get('/group.with.dot')).to route_to('groups#show', id: 'group.with.dot')
   end

spec/services/git_push_service_spec.rb

@@ -326,6 +326,9 @@ describe GitPushService, services: true do
         author_email: commit_author.email
       )
+      allow_any_instance_of(ProcessCommitWorker).to receive(:find_commit).
+        and_return(commit)
+
       allow(project.repository).to receive(:commits_between).and_return([commit])
     end
@@ -381,6 +384,9 @@ describe GitPushService, services: true do
         committed_date: commit_time
       )
+      allow_any_instance_of(ProcessCommitWorker).to receive(:find_commit).
+        and_return(commit)
+
       allow(project.repository).to receive(:commits_between).and_return([commit])
     end
@@ -417,6 +423,9 @@ describe GitPushService, services: true do
       allow(project.repository).to receive(:commits_between).
         and_return([closing_commit])
+      allow_any_instance_of(ProcessCommitWorker).to receive(:find_commit).
+        and_return(closing_commit)
+
       project.team << [commit_author, :master]
     end
@@ -562,9 +571,16 @@ describe GitPushService, services: true do
     let(:housekeeping) { Projects::HousekeepingService.new(project) }
     before do
+      # Flush any raw Redis data stored by the housekeeping code.
+      Gitlab::Redis.with { |conn| conn.flushall }
+
       allow(Projects::HousekeepingService).to receive(:new).and_return(housekeeping)
     end
+    after do
+      Gitlab::Redis.with { |conn| conn.flushall }
+    end
+
     it 'does not perform housekeeping when not needed' do
       expect(housekeeping).not_to receive(:execute)

spec/services/issues/close_service_spec.rb

@@ -15,10 +15,39 @@ describe Issues::CloseService, services: true do
   end
   describe '#execute' do
+    let(:service) { described_class.new(project, user) }
+
+    it 'checks if the user is authorized to update the issue' do
+      expect(service).to receive(:can?).with(user, :update_issue, issue).
+        and_call_original
+
+      service.execute(issue)
+    end
+
+    it 'does not close the issue when the user is not authorized to do so' do
+      allow(service).to receive(:can?).with(user, :update_issue, issue).
+        and_return(false)
+
+      expect(service).not_to receive(:close_issue)
+      expect(service.execute(issue)).to eq(issue)
+    end
+
+    it 'closes the issue when the user is authorized to do so' do
+      allow(service).to receive(:can?).with(user, :update_issue, issue).
+        and_return(true)
+
+      expect(service).to receive(:close_issue).
+        with(issue, commit: nil, notifications: true, system_note: true)
+
+      service.execute(issue)
+    end
+  end
+
+  describe '#close_issue' do
     context "valid params" do
       before do
         perform_enqueued_jobs do
-          described_class.new(project, user).execute(issue)
+          described_class.new(project, user).close_issue(issue)
         end
       end
@@ -41,24 +70,12 @@ describe Issues::CloseService, services: true do
       end
     end
-    context 'current user is not authorized to close issue' do
-      before do
-        perform_enqueued_jobs do
-          described_class.new(project, guest).execute(issue)
-        end
-      end
-
-      it 'does not close the issue' do
-        expect(issue).to be_open
-      end
-    end
-
     context 'when issue is not confidential' do
       it 'executes issue hooks' do
         expect(project).to receive(:execute_hooks).with(an_instance_of(Hash), :issue_hooks)
         expect(project).to receive(:execute_services).with(an_instance_of(Hash), :issue_hooks)
-        described_class.new(project, user).execute(issue)
+        described_class.new(project, user).close_issue(issue)
       end
     end
@@ -69,14 +86,14 @@ describe Issues::CloseService, services: true do
         expect(project).to receive(:execute_hooks).with(an_instance_of(Hash), :confidential_issue_hooks)
         expect(project).to receive(:execute_services).with(an_instance_of(Hash), :confidential_issue_hooks)
-        described_class.new(project, user).execute(issue)
+        described_class.new(project, user).close_issue(issue)
       end
     end
     context 'external issue tracker' do
       before do
         allow(project).to receive(:default_issues_tracker?).and_return(false)
-        described_class.new(project, user).execute(issue)
+        described_class.new(project, user).close_issue(issue)
       end
       it { expect(issue).to be_valid }

spec/services/projects/housekeeping_service_spec.rb

@@ -14,8 +14,10 @@ describe Projects::HousekeepingService do
   describe '#execute' do
     it 'enqueues a sidekiq job' do
-      expect(subject).to receive(:try_obtain_lease).and_return(true)
-      expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id)
+      expect(subject).to receive(:try_obtain_lease).and_return(:the_uuid)
+      expect(subject).to receive(:lease_key).and_return(:the_lease_key)
+      expect(subject).to receive(:task).and_return(:the_task)
+      expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :the_task, :the_lease_key, :the_uuid)
       subject.execute
       expect(project.reload.pushes_since_gc).to eq(0)
@@ -58,4 +60,26 @@ describe Projects::HousekeepingService do
       end.to change { project.pushes_since_gc }.from(0).to(1)
     end
   end
+
+  it 'uses all three kinds of housekeeping we offer' do
+    allow(subject).to receive(:try_obtain_lease).and_return(:the_uuid)
+    allow(subject).to receive(:lease_key).and_return(:the_lease_key)
+
+    # At push 200
+    expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :gc, :the_lease_key, :the_uuid).
+      exactly(1).times
+    # At push 50, 100, 150
+    expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :full_repack, :the_lease_key, :the_uuid).
+      exactly(3).times
+    # At push 10, 20, ... (except those above)
+    expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :incremental_repack, :the_lease_key, :the_uuid).
+      exactly(16).times
+
+    201.times do
+      subject.increment!
+      subject.execute if subject.needed?
+    end
+
+    expect(project.pushes_since_gc).to eq(1)
+  end
 end

spec/spec_helper.rb

@@ -29,7 +29,7 @@ RSpec.configure do |config|
   config.include Devise::Test::ControllerHelpers,   type: :controller
   config.include Warden::Test::Helpers, type: :request
   config.include LoginHelpers,          type: :feature
-  config.include SearchHelpers,       type: :feature
+  config.include SearchHelpers,         type: :feature
   config.include StubConfiguration
   config.include EmailHelpers
   config.include TestEnv

spec/support/test_env.rb

@@ -205,20 +205,18 @@ module TestEnv
   end
   def set_repo_refs(repo_path, branch_sha)
+    instructions = branch_sha.map {|branch, sha| "update refs/heads/#{branch}\x00#{sha}\x00" }.join("\x00") << "\x00"
+    update_refs = %W(#{Gitlab.config.git.bin_path} update-ref --stdin -z)
+    reset = proc do
+      IO.popen(update_refs, "w") {|io| io.write(instructions) }
+      $?.success?
+    end
+
     Dir.chdir(repo_path) do
-      branch_sha.each do |branch, sha|
-        # Try to reset without fetching to avoid using the network.
-        reset = %W(#{Gitlab.config.git.bin_path} update-ref refs/heads/#{branch} #{sha})
-        unless system(*reset)
-          if system(*%W(#{Gitlab.config.git.bin_path} fetch origin))
-            unless system(*reset)
-              raise 'The fetched test seed '\
-              'does not contain the required revision.'
-            end
-          else
-            raise 'Could not fetch test seed repository.'
-          end
-        end
+      # Try to reset without fetching to avoid using the network.
+      unless reset.call
+        raise 'Could not fetch test seed repository.' unless system(*%W(#{Gitlab.config.git.bin_path} fetch origin))
+        raise 'The fetched test seed does not contain the required revision.' unless reset.call
       end
     end
   end

spec/workers/git_garbage_collect_worker_spec.rb

+require 'fileutils'
+
 require 'spec_helper'
 describe GitGarbageCollectWorker do
@@ -6,16 +8,12 @@ describe GitGarbageCollectWorker do
   subject { GitGarbageCollectWorker.new }
-  before do
-    allow(subject).to receive(:gitlab_shell).and_return(shell)
-  end
-
   describe "#perform" do
-    it "runs `git gc`" do
-      expect(shell).to receive(:gc).with(
-        project.repository_storage_path,
-        project.path_with_namespace).
-      and_return(true)
+    it "flushes ref caches when the task is 'gc'" do
+      expect(subject).to receive(:command).with(:gc).and_return([:the, :command])
+      expect(Gitlab::Popen).to receive(:popen).
+        with([:the, :command], project.repository.path_to_repo).and_return(["", 0])
+
       expect_any_instance_of(Repository).to receive(:after_create_branch).and_call_original
       expect_any_instance_of(Repository).to receive(:branch_names).and_call_original
       expect_any_instance_of(Repository).to receive(:branch_count).and_call_original
@@ -23,5 +21,110 @@ describe GitGarbageCollectWorker do
       subject.perform(project.id)
     end
+
+    shared_examples 'gc tasks' do
+      before { allow(subject).to receive(:bitmaps_enabled?).and_return(bitmaps_enabled) }
+
+      it 'incremental repack adds a new packfile' do
+        create_objects(project)
+        before_packs = packs(project)
+
+        expect(before_packs.count).to be >= 1
+
+        subject.perform(project.id, 'incremental_repack')
+        after_packs = packs(project)
+
+        # Exactly one new pack should have been created
+        expect(after_packs.count).to eq(before_packs.count + 1)
+
+        # Previously existing packs are still around
+        expect(before_packs & after_packs).to eq(before_packs)
+      end
+
+      it 'full repack consolidates into 1 packfile' do
+        create_objects(project)
+        subject.perform(project.id, 'incremental_repack')
+        before_packs = packs(project)
+
+        expect(before_packs.count).to be >= 2
+
+        subject.perform(project.id, 'full_repack')
+        after_packs = packs(project)
+
+        expect(after_packs.count).to eq(1)
+
+        # Previously existing packs should be gone now
+        expect(after_packs - before_packs).to eq(after_packs)
+
+        expect(File.exist?(bitmap_path(after_packs.first))).to eq(bitmaps_enabled)
+      end
+
+      it 'gc consolidates into 1 packfile and updates packed-refs' do
+        create_objects(project)
+        before_packs = packs(project)
+        before_packed_refs = packed_refs(project)
+
+        expect(before_packs.count).to be >= 1
+
+        subject.perform(project.id, 'gc')
+        after_packed_refs = packed_refs(project)
+        after_packs = packs(project)
+
+        expect(after_packs.count).to eq(1)
+
+        # Previously existing packs should be gone now
+        expect(after_packs - before_packs).to eq(after_packs)
+
+        # The packed-refs file should have been updated during 'git gc'
+        expect(before_packed_refs).not_to eq(after_packed_refs)
+
+        expect(File.exist?(bitmap_path(after_packs.first))).to eq(bitmaps_enabled)
+      end
+    end
+
+    context 'with bitmaps enabled' do
+      let(:bitmaps_enabled) { true }
+
+      include_examples 'gc tasks'
+    end
+
+    context 'with bitmaps disabled' do
+      let(:bitmaps_enabled) { false }
+
+      include_examples 'gc tasks'
+    end
+  end
+
+  # Create a new commit on a random new branch
+  def create_objects(project)
+    rugged = project.repository.rugged
+    old_commit = rugged.branches.first.target
+    new_commit_sha = Rugged::Commit.create(
+      rugged,
+      message: "hello world #{SecureRandom.hex(6)}",
+      author: Gitlab::Git::committer_hash(email: 'foo@bar', name: 'baz'),
+      committer: Gitlab::Git::committer_hash(email: 'foo@bar', name: 'baz'),
+      tree: old_commit.tree,
+      parents: [old_commit],
+    )
+    project.repository.update_ref!(
+      "refs/heads/#{SecureRandom.hex(6)}",
+      new_commit_sha,
+      Gitlab::Git::BLANK_SHA
+    )
+  end
+
+  def packs(project)
+    Dir["#{project.repository.path_to_repo}/objects/pack/*.pack"]
+  end
+
+  def packed_refs(project)
+    path = "#{project.repository.path_to_repo}/packed-refs"
+    FileUtils.touch(path)
+    File.read(path)
+  end
+
+  def bitmap_path(pack)
+    pack.sub(/\.pack\z/, '.bitmap')
   end
 end

spec/workers/process_commit_worker_spec.rb

+require 'spec_helper'
+
+describe ProcessCommitWorker do
+  let(:worker) { described_class.new }
+  let(:user) { create(:user) }
+  let(:project) { create(:project, :public) }
+  let(:issue) { create(:issue, project: project, author: user) }
+  let(:commit) { project.commit }
+
+  describe '#perform' do
+    it 'does not process the commit when the project does not exist' do
+      expect(worker).not_to receive(:close_issues)
+
+      worker.perform(-1, user.id, commit.id)
+    end
+
+    it 'does not process the commit when the user does not exist' do
+      expect(worker).not_to receive(:close_issues)
+
+      worker.perform(project.id, -1, commit.id)
+    end
+
+    it 'does not process the commit when the commit no longer exists' do
+      expect(worker).not_to receive(:close_issues)
+
+      worker.perform(project.id, user.id, 'this-should-does-not-exist')
+    end
+
+    it 'processes the commit message' do
+      expect(worker).to receive(:process_commit_message).and_call_original
+
+      worker.perform(project.id, user.id, commit.id)
+    end
+
+    it 'updates the issue metrics' do
+      expect(worker).to receive(:update_issue_metrics).and_call_original
+
+      worker.perform(project.id, user.id, commit.id)
+    end
+  end
+
+  describe '#process_commit_message' do
+    context 'when pushing to the default branch' do
+      it 'closes issues that should be closed per the commit message' do
+        allow(commit).to receive(:safe_message).
+          and_return("Closes #{issue.to_reference}")
+
+        expect(worker).to receive(:close_issues).
+          with(project, user, user, commit, [issue])
+
+        worker.process_commit_message(project, commit, user, user, true)
+      end
+    end
+
+    context 'when pushing to a non-default branch' do
+      it 'does not close any issues' do
+        allow(commit).to receive(:safe_message).
+          and_return("Closes #{issue.to_reference}")
+
+        expect(worker).not_to receive(:close_issues)
+
+        worker.process_commit_message(project, commit, user, user, false)
+      end
+    end
+
+    it 'creates cross references' do
+      expect(commit).to receive(:create_cross_references!)
+
+      worker.process_commit_message(project, commit, user, user)
+    end
+  end
+
+  describe '#close_issues' do
+    context 'when the user can update the issues' do
+      it 'closes the issues' do
+        worker.close_issues(project, user, user, commit, [issue])
+
+        issue.reload
+
+        expect(issue.closed?).to eq(true)
+      end
+    end
+
+    context 'when the user can not update the issues' do
+      it 'does not close the issues' do
+        other_user = create(:user)
+
+        worker.close_issues(project, other_user, other_user, commit, [issue])
+
+        issue.reload
+
+        expect(issue.closed?).to eq(false)
+      end
+    end
+  end
+
+  describe '#update_issue_metrics' do
+    it 'updates any existing issue metrics' do
+      allow(commit).to receive(:safe_message).
+        and_return("Closes #{issue.to_reference}")
+
+      worker.update_issue_metrics(commit, user)
+
+      metric = Issue::Metrics.first
+
+      expect(metric.first_mentioned_in_commit_at).to eq(commit.committed_date)
+    end
+  end
+end