Merge branch 'track-pipeline-user' into 'master'

Track a user who creates a Pipeline

## What does this MR do?
This adds additional column to pipelines to track user who is creating pipelines.

## Why was this MR needed?
This is to make it possible to show all pipelines created by specific user and to later solve: https://gitlab.com/gitlab-org/gitlab-ce/issues/18054

## What are the relevant issue numbers?
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/18992

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5272

1 files changed, 2 insertions, 1 deletions

diff --git a/spec/services/create_commit_builds_service_spec.rb b/spec/services/create_commit_builds_service_spec.rb
index 4d09bc5fb12..d4c5e584421 100644
--- a/spec/services/create_commit_builds_service_spec.rb
+++ b/spec/services/create_commit_builds_service_spec.rb
@@ -3,7 +3,7 @@ require 'spec_helper'
 describe CreateCommitBuildsService, services: true do
   let(:service) { CreateCommitBuildsService.new }
   let(:project) { FactoryGirl.create(:empty_project) }
-  let(:user) { nil }
+  let(:user) { create(:user) }
 
   before do
     stub_ci_pipeline_to_return_yaml_file
@@ -24,6 +24,7 @@ describe CreateCommitBuildsService, services: true do
       it { expect(pipeline).to be_valid }
       it { expect(pipeline).to be_persisted }
       it { expect(pipeline).to eq(project.pipelines.last) }
+      it { expect(pipeline).to have_attributes(user: user) }
       it { expect(pipeline.builds.first).to be_kind_of(Ci::Build) }
     end