Merge build specs into file that has valid location

2 files changed, 1276 insertions, 1335 deletions

diff --git a/spec/models/build_spec.rb b/spec/models/build_spec.rb
index cd3b6d51545..64c751e791f 100644
--- a/spec/models/build_spec.rb
+++ b/spec/models/build_spec.rb
@@ -1,1338 +1,6 @@
 require 'spec_helper'
 
 describe Ci::Build, models: true do
-  let(:project) { create(:project) }
 
-  let(:pipeline) do
-    create(:ci_pipeline, project: project,
-                         sha: project.commit.id,
-                         ref: project.default_branch,
-                         status: 'success')
-  end
 
-  let(:build) { create(:ci_build, pipeline: pipeline) }
-
-  it { is_expected.to validate_presence_of :ref }
-
-  it { is_expected.to respond_to :trace_html }
-
-  describe '#first_pending' do
-    let!(:first) { create(:ci_build, pipeline: pipeline, status: 'pending', created_at: Date.yesterday) }
-    let!(:second) { create(:ci_build, pipeline: pipeline, status: 'pending') }
-    subject { Ci::Build.first_pending }
-
-    it { is_expected.to be_a(Ci::Build) }
-    it('returns with the first pending build') { is_expected.to eq(first) }
-  end
-
-  describe '#create_from' do
-    before do
-      build.status = 'success'
-      build.save
-    end
-    let(:create_from_build) { Ci::Build.create_from build }
-
-    it 'exists a pending task' do
-      expect(Ci::Build.pending.count(:all)).to eq 0
-      create_from_build
-      expect(Ci::Build.pending.count(:all)).to be > 0
-    end
-  end
-
-  describe '#failed_but_allowed?' do
-    subject { build.failed_but_allowed? }
-
-    context 'when build is not allowed to fail' do
-      before do
-        build.allow_failure = false
-      end
-
-      context 'and build.status is success' do
-        before do
-          build.status = 'success'
-        end
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'and build.status is failed' do
-        before do
-          build.status = 'failed'
-        end
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    context 'when build is allowed to fail' do
-      before do
-        build.allow_failure = true
-      end
-
-      context 'and build.status is success' do
-        before do
-          build.status = 'success'
-        end
-
-        it { is_expected.to be_falsey }
-      end
-
-      context 'and build.status is failed' do
-        before do
-          build.status = 'failed'
-        end
-
-        it { is_expected.to be_truthy }
-      end
-    end
-  end
-
-  describe '#persisted_environment' do
-    before do
-      @environment = create(:environment, project: project, name: "foo-#{project.default_branch}")
-    end
-
-    subject { build.persisted_environment }
-
-    context 'referenced literally' do
-      let(:build) { create(:ci_build, pipeline: pipeline, environment: "foo-#{project.default_branch}") }
-
-      it { is_expected.to eq(@environment) }
-    end
-
-    context 'referenced with a variable' do
-      let(:build) { create(:ci_build, pipeline: pipeline, environment: "foo-$CI_BUILD_REF_NAME") }
-
-      it { is_expected.to eq(@environment) }
-    end
-  end
-
-  describe '#trace' do
-    it { expect(build.trace).to be_nil }
-
-    context 'when build.trace contains text' do
-      let(:text) { 'example output' }
-      before do
-        build.trace = text
-      end
-
-      it { expect(build.trace).to eq(text) }
-    end
-
-    context 'when build.trace hides runners token' do
-      let(:token) { 'my_secret_token' }
-
-      before do
-        build.update(trace: token)
-        build.project.update(runners_token: token)
-      end
-
-      it { expect(build.trace).not_to include(token) }
-      it { expect(build.raw_trace).to include(token) }
-    end
-
-    context 'when build.trace hides build token' do
-      let(:token) { 'my_secret_token' }
-
-      before do
-        build.update(trace: token)
-        build.update(token: token)
-      end
-
-      it { expect(build.trace).not_to include(token) }
-      it { expect(build.raw_trace).to include(token) }
-    end
-  end
-
-  describe '#raw_trace' do
-    subject { build.raw_trace }
-
-    context 'when build.trace hides runners token' do
-      let(:token) { 'my_secret_token' }
-
-      before do
-        build.project.update(runners_token: token)
-        build.update(trace: token)
-      end
-
-      it { is_expected.not_to include(token) }
-    end
-
-    context 'when build.trace hides build token' do
-      let(:token) { 'my_secret_token' }
-
-      before do
-        build.update(token: token)
-        build.update(trace: token)
-      end
-
-      it { is_expected.not_to include(token) }
-    end
-  end
-
-  context '#append_trace' do
-    subject { build.trace_html }
-
-    context 'when build.trace hides runners token' do
-      let(:token) { 'my_secret_token' }
-
-      before do
-        build.project.update(runners_token: token)
-        build.append_trace(token, 0)
-      end
-
-      it { is_expected.not_to include(token) }
-    end
-
-    context 'when build.trace hides build token' do
-      let(:token) { 'my_secret_token' }
-
-      before do
-        build.update(token: token)
-        build.append_trace(token, 0)
-      end
-
-      it { is_expected.not_to include(token) }
-    end
-  end
-
-  # TODO: build timeout
-  # describe :timeout do
-  #   subject { build.timeout }
-  #
-  #   it { is_expected.to eq(pipeline.project.timeout) }
-  # end
-
-  describe '#options' do
-    let(:options) do
-      {
-        image: "ruby:2.1",
-        services: [
-          "postgres"
-        ]
-      }
-    end
-
-    subject { build.options }
-    it { is_expected.to eq(options) }
-  end
-
-  # TODO: allow_git_fetch
-  # describe :allow_git_fetch do
-  #   subject { build.allow_git_fetch }
-  #
-  #   it { is_expected.to eq(project.allow_git_fetch) }
-  # end
-
-  describe '#project' do
-    subject { build.project }
-
-    it { is_expected.to eq(pipeline.project) }
-  end
-
-  describe '#project_id' do
-    subject { build.project_id }
-
-    it { is_expected.to eq(pipeline.project_id) }
-  end
-
-  describe '#project_name' do
-    subject { build.project_name }
-
-    it { is_expected.to eq(project.name) }
-  end
-
-  describe '#extract_coverage' do
-    context 'valid content & regex' do
-      subject { build.extract_coverage('Coverage 1033 / 1051 LOC (98.29%) covered', '\(\d+.\d+\%\) covered') }
-
-      it { is_expected.to eq(98.29) }
-    end
-
-    context 'valid content & bad regex' do
-      subject { build.extract_coverage('Coverage 1033 / 1051 LOC (98.29%) covered', 'very covered') }
-
-      it { is_expected.to be_nil }
-    end
-
-    context 'no coverage content & regex' do
-      subject { build.extract_coverage('No coverage for today :sad:', '\(\d+.\d+\%\) covered') }
-
-      it { is_expected.to be_nil }
-    end
-
-    context 'multiple results in content & regex' do
-      subject { build.extract_coverage(' (98.39%) covered. (98.29%) covered', '\(\d+.\d+\%\) covered') }
-
-      it { is_expected.to eq(98.29) }
-    end
-
-    context 'using a regex capture' do
-      subject { build.extract_coverage('TOTAL      9926   3489    65%', 'TOTAL\s+\d+\s+\d+\s+(\d{1,3}\%)') }
-
-      it { is_expected.to eq(65) }
-    end
-  end
-
-  describe '#ref_slug' do
-    {
-      'master'    => 'master',
-      '1-foo'     => '1-foo',
-      'fix/1-foo' => 'fix-1-foo',
-      'fix-1-foo' => 'fix-1-foo',
-      'a' * 63    => 'a' * 63,
-      'a' * 64    => 'a' * 63,
-      'FOO'       => 'foo',
-    }.each do |ref, slug|
-      it "transforms #{ref} to #{slug}" do
-        build.ref = ref
-
-        expect(build.ref_slug).to eq(slug)
-      end
-    end
-  end
-
-  describe '#variables' do
-    let(:container_registry_enabled) { false }
-    let(:predefined_variables) do
-      [
-        { key: 'CI', value: 'true', public: true },
-        { key: 'GITLAB_CI', value: 'true', public: true },
-        { key: 'CI_BUILD_ID', value: build.id.to_s, public: true },
-        { key: 'CI_BUILD_TOKEN', value: build.token, public: false },
-        { key: 'CI_BUILD_REF', value: build.sha, public: true },
-        { key: 'CI_BUILD_BEFORE_SHA', value: build.before_sha, public: true },
-        { key: 'CI_BUILD_REF_NAME', value: 'master', public: true },
-        { key: 'CI_BUILD_REF_SLUG', value: 'master', public: true },
-        { key: 'CI_BUILD_NAME', value: 'test', public: true },
-        { key: 'CI_BUILD_STAGE', value: 'test', public: true },
-        { key: 'CI_SERVER_NAME', value: 'GitLab', public: true },
-        { key: 'CI_SERVER_VERSION', value: Gitlab::VERSION, public: true },
-        { key: 'CI_SERVER_REVISION', value: Gitlab::REVISION, public: true },
-        { key: 'CI_PROJECT_ID', value: project.id.to_s, public: true },
-        { key: 'CI_PROJECT_NAME', value: project.path, public: true },
-        { key: 'CI_PROJECT_PATH', value: project.path_with_namespace, public: true },
-        { key: 'CI_PROJECT_NAMESPACE', value: project.namespace.path, public: true },
-        { key: 'CI_PROJECT_URL', value: project.web_url, public: true },
-        { key: 'CI_PIPELINE_ID', value: pipeline.id.to_s, public: true }
-      ]
-    end
-
-    before do
-      stub_container_registry_config(enabled: container_registry_enabled, host_port: 'registry.example.com')
-    end
-
-    subject { build.variables }
-
-    context 'returns variables' do
-      before do
-        build.yaml_variables = []
-      end
-
-      it { is_expected.to eq(predefined_variables) }
-    end
-
-    context 'when build has user' do
-      let(:user) { create(:user, username: 'starter') }
-      let(:user_variables) do
-        [
-          { key: 'GITLAB_USER_ID',    value: user.id.to_s, public: true },
-          { key: 'GITLAB_USER_EMAIL', value: user.email,   public: true }
-        ]
-      end
-
-      before do
-        build.update_attributes(user: user)
-      end
-
-      it { user_variables.each { |v| is_expected.to include(v) } }
-    end
-
-    context 'when build has an environment' do
-      before do
-        build.update(environment: 'production')
-        create(:environment, project: build.project, name: 'production', slug: 'prod-slug')
-      end
-
-      let(:environment_variables) do
-        [
-          { key: 'CI_ENVIRONMENT_NAME', value: 'production', public: true },
-          { key: 'CI_ENVIRONMENT_SLUG', value: 'prod-slug',  public: true }
-        ]
-      end
-
-      it { environment_variables.each { |v| is_expected.to include(v) } }
-    end
-
-    context 'when build started manually' do
-      before do
-        build.update_attributes(when: :manual)
-      end
-
-      let(:manual_variable) do
-        { key: 'CI_BUILD_MANUAL', value: 'true', public: true }
-      end
-
-      it { is_expected.to include(manual_variable) }
-    end
-
-    context 'when build is for tag' do
-      let(:tag_variable) do
-        { key: 'CI_BUILD_TAG', value: 'master', public: true }
-      end
-
-      before do
-        build.update_attributes(tag: true)
-      end
-
-      it { is_expected.to include(tag_variable) }
-    end
-
-    context 'when secure variable is defined' do
-      let(:secure_variable) do
-        { key: 'SECRET_KEY', value: 'secret_value', public: false }
-      end
-
-      before do
-        build.project.variables << Ci::Variable.new(key: 'SECRET_KEY', value: 'secret_value')
-      end
-
-      it { is_expected.to include(secure_variable) }
-    end
-
-    context 'when build is for triggers' do
-      let(:trigger) { create(:ci_trigger, project: project) }
-      let(:trigger_request) { create(:ci_trigger_request_with_variables, pipeline: pipeline, trigger: trigger) }
-      let(:user_trigger_variable) do
-        { key: :TRIGGER_KEY_1, value: 'TRIGGER_VALUE_1', public: false }
-      end
-      let(:predefined_trigger_variable) do
-        { key: 'CI_BUILD_TRIGGERED', value: 'true', public: true }
-      end
-
-      before do
-        build.trigger_request = trigger_request
-      end
-
-      it { is_expected.to include(user_trigger_variable) }
-      it { is_expected.to include(predefined_trigger_variable) }
-    end
-
-    context 'when yaml_variables are undefined' do
-      before do
-        build.yaml_variables = nil
-      end
-
-      context 'use from gitlab-ci.yml' do
-        before do
-          stub_ci_pipeline_yaml_file(config)
-        end
-
-        context 'when config is not found' do
-          let(:config) { nil }
-
-          it { is_expected.to eq(predefined_variables) }
-        end
-
-        context 'when config does not have a questioned job' do
-          let(:config) do
-            YAML.dump({
-              test_other: {
-                script: 'Hello World'
-              }
-            })
-          end
-
-          it { is_expected.to eq(predefined_variables) }
-        end
-
-        context 'when config has variables' do
-          let(:config) do
-            YAML.dump({
-              test: {
-                script: 'Hello World',
-                variables: {
-                  KEY: 'value'
-                }
-              }
-            })
-          end
-          let(:variables) do
-            [{ key: 'KEY', value: 'value', public: true }]
-          end
-
-          it { is_expected.to eq(predefined_variables + variables) }
-        end
-      end
-    end
-
-    context 'when container registry is enabled' do
-      let(:container_registry_enabled) { true }
-      let(:ci_registry) do
-        { key: 'CI_REGISTRY',  value: 'registry.example.com',  public: true }
-      end
-      let(:ci_registry_image) do
-        { key: 'CI_REGISTRY_IMAGE',  value: project.container_registry_repository_url, public: true }
-      end
-
-      context 'and is disabled for project' do
-        before do
-          project.update(container_registry_enabled: false)
-        end
-
-        it { is_expected.to include(ci_registry) }
-        it { is_expected.not_to include(ci_registry_image) }
-      end
-
-      context 'and is enabled for project' do
-        before do
-          project.update(container_registry_enabled: true)
-        end
-
-        it { is_expected.to include(ci_registry) }
-        it { is_expected.to include(ci_registry_image) }
-      end
-    end
-
-    context 'when runner is assigned to build' do
-      let(:runner) { create(:ci_runner, description: 'description', tag_list: ['docker', 'linux']) }
-
-      before do
-        build.update(runner: runner)
-      end
-
-      it { is_expected.to include({ key: 'CI_RUNNER_ID', value: runner.id.to_s, public: true }) }
-      it { is_expected.to include({ key: 'CI_RUNNER_DESCRIPTION', value: 'description', public: true }) }
-      it { is_expected.to include({ key: 'CI_RUNNER_TAGS', value: 'docker, linux', public: true }) }
-    end
-
-    context 'when build is for a deployment' do
-      let(:deployment_variable) { { key: 'KUBERNETES_TOKEN', value: 'TOKEN', public: false } }
-
-      before do
-        build.environment = 'production'
-        allow(project).to receive(:deployment_variables).and_return([deployment_variable])
-      end
-
-      it { is_expected.to include(deployment_variable) }
-    end
-
-    context 'returns variables in valid order' do
-      before do
-        allow(build).to receive(:predefined_variables) { ['predefined'] }
-        allow(project).to receive(:predefined_variables) { ['project'] }
-        allow(pipeline).to receive(:predefined_variables) { ['pipeline'] }
-        allow(build).to receive(:yaml_variables) { ['yaml'] }
-        allow(project).to receive(:secret_variables) { ['secret'] }
-      end
-
-      it { is_expected.to eq(%w[predefined project pipeline yaml secret]) }
-    end
-  end
-
-  describe '#has_tags?' do
-    context 'when build has tags' do
-      subject { create(:ci_build, tag_list: ['tag']) }
-      it { is_expected.to have_tags }
-    end
-
-    context 'when build does not have tags' do
-      subject { create(:ci_build, tag_list: []) }
-      it { is_expected.not_to have_tags }
-    end
-  end
-
-  describe '#any_runners_online?' do
-    subject { build.any_runners_online? }
-
-    context 'when no runners' do
-      it { is_expected.to be_falsey }
-    end
-
-    context 'when there are runners' do
-      let(:runner) { create(:ci_runner) }
-
-      before do
-        build.project.runners << runner
-        runner.update_attributes(contacted_at: 1.second.ago)
-      end
-
-      it { is_expected.to be_truthy }
-
-      it 'that is inactive' do
-        runner.update_attributes(active: false)
-        is_expected.to be_falsey
-      end
-
-      it 'that is not online' do
-        runner.update_attributes(contacted_at: nil)
-        is_expected.to be_falsey
-      end
-
-      it 'that cannot handle build' do
-        expect_any_instance_of(Ci::Runner).to receive(:can_pick?).and_return(false)
-        is_expected.to be_falsey
-      end
-    end
-  end
-
-  describe '#stuck?' do
-    subject { build.stuck? }
-
-    context "when commit_status.status is pending" do
-      before do
-        build.status = 'pending'
-      end
-
-      it { is_expected.to be_truthy }
-
-      context "and there are specific runner" do
-        let(:runner) { create(:ci_runner, contacted_at: 1.second.ago) }
-
-        before do
-          build.project.runners << runner
-          runner.save
-        end
-
-        it { is_expected.to be_falsey }
-      end
-    end
-
-    %w[success failed canceled running].each do |state|
-      context "when commit_status.status is #{state}" do
-        before do
-          build.status = state
-        end
-
-        it { is_expected.to be_falsey }
-      end
-    end
-  end
-
-  describe '#artifacts?' do
-    subject { build.artifacts? }
-
-    context 'artifacts archive does not exist' do
-      before do
-        build.update_attributes(artifacts_file: nil)
-      end
-
-      it { is_expected.to be_falsy }
-    end
-
-    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_truthy }
-    end
-
-    context 'is not expired' do
-      before { build.update(artifacts_expire_at: Time.now + 7.days)  }
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#artifacts_metadata?' do
-    subject { build.artifacts_metadata? }
-    context 'artifacts metadata does not exist' do
-      it { is_expected.to be_falsy }
-    end
-
-    context 'artifacts archive is a zip file and metadata exists' do
-      let(:build) { create(:ci_build, :artifacts) }
-      it { is_expected.to be_truthy }
-    end
-  end
-  describe '#repo_url' do
-    let(:build) { create(:ci_build) }
-    let(:project) { build.project }
-
-    subject { build.repo_url }
-
-    it { is_expected.to be_a(String) }
-    it { is_expected.to end_with(".git") }
-    it { is_expected.to start_with(project.web_url[0..6]) }
-    it { is_expected.to include(build.token) }
-    it { is_expected.to include('gitlab-ci-token') }
-    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' }.to raise_error(ChronicDuration::DurationParseError)
-      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') }
-    let!(:rubocop_test) { create(:ci_build, pipeline: pipeline, name: 'rubocop', stage_idx: 1, stage: 'test') }
-    let!(:staging) { create(:ci_build, pipeline: pipeline, name: 'staging', stage_idx: 2, stage: 'deploy') }
-
-    it 'expects to have no dependents if this is first build' do
-      expect(build.depends_on_builds).to be_empty
-    end
-
-    it 'expects to have one dependent if this is test' do
-      expect(rspec_test.depends_on_builds.map(&:id)).to contain_exactly(build.id)
-    end
-
-    it 'expects to have all builds from build and test stage if this is last' do
-      expect(staging.depends_on_builds.map(&:id)).to contain_exactly(build.id, rspec_test.id, rubocop_test.id)
-    end
-
-    it 'expects to have retried builds instead the original ones' do
-      retried_rspec = Ci::Build.retry(rspec_test)
-      expect(staging.depends_on_builds.map(&:id)).to contain_exactly(build.id, retried_rspec.id, rubocop_test.id)
-    end
-  end
-
-  def create_mr(build, pipeline, factory: :merge_request, created_at: Time.now)
-    create(factory, source_project_id: pipeline.gl_project_id,
-                    target_project_id: pipeline.gl_project_id,
-                    source_branch: build.ref,
-                    created_at: created_at)
-  end
-
-  describe '#merge_request' do
-    context 'when a MR has a reference to the pipeline' do
-      before do
-        @merge_request = create_mr(build, pipeline, factory: :merge_request)
-
-        commits = [double(id: pipeline.sha)]
-        allow(@merge_request).to receive(:commits).and_return(commits)
-        allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request])
-      end
-
-      it 'returns the single associated MR' do
-        expect(build.merge_request.id).to eq(@merge_request.id)
-      end
-    end
-
-    context 'when there is not a MR referencing the pipeline' do
-      it 'returns nil' do
-        expect(build.merge_request).to be_nil
-      end
-    end
-
-    context 'when more than one MR have a reference to the pipeline' do
-      before do
-        @merge_request = create_mr(build, pipeline, factory: :merge_request)
-        @merge_request.close!
-        @merge_request2 = create_mr(build, pipeline, factory: :merge_request)
-
-        commits = [double(id: pipeline.sha)]
-        allow(@merge_request).to receive(:commits).and_return(commits)
-        allow(@merge_request2).to receive(:commits).and_return(commits)
-        allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request, @merge_request2])
-      end
-
-      it 'returns the first MR' do
-        expect(build.merge_request.id).to eq(@merge_request.id)
-      end
-    end
-
-    context 'when a Build is created after the MR' do
-      before do
-        @merge_request = create_mr(build, pipeline, factory: :merge_request_with_diffs)
-        pipeline2 = create(:ci_pipeline, project: project)
-        @build2 = create(:ci_build, pipeline: pipeline2)
-
-        allow(@merge_request).to receive(:commits_sha).
-          and_return([pipeline.sha, pipeline2.sha])
-        allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request])
-      end
-
-      it 'returns the current MR' do
-        expect(@build2.merge_request.id).to eq(@merge_request.id)
-      end
-    end
-  end
-
-  describe 'build erasable' do
-    shared_examples 'erasable' do
-      it 'removes artifact file' do
-        expect(build.artifacts_file.exists?).to be_falsy
-      end
-
-      it 'removes artifact metadata file' do
-        expect(build.artifacts_metadata.exists?).to be_falsy
-      end
-
-      it 'erases build trace in trace file' do
-        expect(build.trace).to be_empty
-      end
-
-      it 'sets erased to true' do
-        expect(build.erased?).to be true
-      end
-
-      it 'sets erase date' do
-        expect(build.erased_at).not_to be_falsy
-      end
-    end
-
-    context 'build is not erasable' do
-      let!(:build) { create(:ci_build) }
-
-      describe '#erase' do
-        subject { build.erase }
-
-        it { is_expected.to be false }
-      end
-
-      describe '#erasable?' do
-        subject { build.erasable? }
-        it { is_expected.to eq false }
-      end
-    end
-
-    context 'build is erasable' do
-      let!(:build) { create(:ci_build, :trace, :success, :artifacts) }
-
-      describe '#erase' do
-        before do
-          build.erase(erased_by: user)
-        end
-
-        context 'erased by user' do
-          let!(:user) { create(:user, username: 'eraser') }
-
-          include_examples 'erasable'
-
-          it 'records user who erased a build' do
-            expect(build.erased_by).to eq user
-          end
-        end
-
-        context 'erased by system' do
-          let(:user) { nil }
-
-          include_examples 'erasable'
-
-          it 'does not set user who erased a build' do
-            expect(build.erased_by).to be_nil
-          end
-        end
-      end
-
-      describe '#erasable?' do
-        subject { build.erasable? }
-        it { is_expected.to be_truthy }
-      end
-
-      describe '#erased?' do
-        let!(:build) { create(:ci_build, :trace, :success, :artifacts) }
-        subject { build.erased? }
-
-        context 'build has not been erased' do
-          it { is_expected.to be_falsey }
-        end
-
-        context 'build has been erased' do
-          before do
-            build.erase
-          end
-
-          it { is_expected.to be_truthy }
-        end
-      end
-
-      context 'metadata and build trace are not available' do
-        let!(:build) { create(:ci_build, :success, :artifacts) }
-
-        before do
-          build.remove_artifacts_metadata!
-        end
-
-        describe '#erase' do
-          it 'does not raise error' do
-            expect { build.erase }.not_to raise_error
-          end
-        end
-      end
-    end
-  end
-
-  describe '#commit' do
-    it 'returns commit pipeline has been created for' do
-      expect(build.commit).to eq project.commit
-    end
-  end
-
-  describe '#when' do
-    subject { build.when }
-
-    context 'when `when` is undefined' do
-      before do
-        build.when = nil
-      end
-
-      context 'use from gitlab-ci.yml' do
-        before do
-          stub_ci_pipeline_yaml_file(config)
-        end
-
-        context 'when config is not found' do
-          let(:config) { nil }
-
-          it { is_expected.to eq('on_success') }
-        end
-
-        context 'when config does not have a questioned job' do
-          let(:config) do
-            YAML.dump({
-                        test_other: {
-                          script: 'Hello World'
-                        }
-                      })
-          end
-
-          it { is_expected.to eq('on_success') }
-        end
-
-        context 'when config has `when`' do
-          let(:config) do
-            YAML.dump({
-                        test: {
-                          script: 'Hello World',
-                          when: 'always'
-                        }
-                      })
-          end
-
-          it { is_expected.to eq('always') }
-        end
-      end
-    end
-  end
-
-  describe '#cancelable?' do
-    subject { build }
-
-    context 'when build is cancelable' do
-      context 'when build is pending' do
-        it { is_expected.to be_cancelable }
-      end
-
-      context 'when build is running' do
-        before do
-          build.run!
-        end
-
-        it { is_expected.to be_cancelable }
-      end
-    end
-
-    context 'when build is not cancelable' do
-      context 'when build is successful' do
-        before do
-          build.success!
-        end
-
-        it { is_expected.not_to be_cancelable }
-      end
-
-      context 'when build is failed' do
-        before do
-          build.drop!
-        end
-
-        it { is_expected.not_to be_cancelable }
-      end
-    end
-  end
-
-  describe '#retryable?' do
-    subject { build }
-
-    context 'when build is retryable' do
-      context 'when build is successful' do
-        before do
-          build.success!
-        end
-
-        it { is_expected.to be_retryable }
-      end
-
-      context 'when build is failed' do
-        before do
-          build.drop!
-        end
-
-        it { is_expected.to be_retryable }
-      end
-
-      context 'when build is canceled' do
-        before do
-          build.cancel!
-        end
-
-        it { is_expected.to be_retryable }
-      end
-    end
-
-    context 'when build is not retryable' do
-      context 'when build is running' do
-        before do
-          build.run!
-        end
-
-        it { is_expected.not_to be_retryable }
-      end
-
-      context 'when build is skipped' do
-        before do
-          build.skip!
-        end
-
-        it { is_expected.not_to be_retryable }
-      end
-    end
-  end
-
-  describe '#manual?' do
-    before do
-      build.update(when: value)
-    end
-
-    subject { build.manual? }
-
-    context 'when is set to manual' do
-      let(:value) { 'manual' }
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when set to something else' do
-      let(:value) { 'something else' }
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#other_actions' do
-    let(:build) { create(:ci_build, :manual, pipeline: pipeline) }
-    let!(:other_build) { create(:ci_build, :manual, pipeline: pipeline, name: 'other action') }
-
-    subject { build.other_actions }
-
-    it 'returns other actions' do
-      is_expected.to contain_exactly(other_build)
-    end
-
-    context 'when build is retried' do
-      let!(:new_build) { Ci::Build.retry(build) }
-
-      it 'does not return any of them' do
-        is_expected.not_to include(build, new_build)
-      end
-    end
-
-    context 'when other build is retried' do
-      let!(:retried_build) { Ci::Build.retry(other_build) }
-
-      it 'returns a retried build' do
-        is_expected.to contain_exactly(retried_build)
-      end
-    end
-  end
-
-  describe '#play' do
-    let(:build) { create(:ci_build, :manual, pipeline: pipeline) }
-
-    subject { build.play }
-
-    it 'enqueues a build' do
-      is_expected.to be_pending
-      is_expected.to eq(build)
-    end
-
-    context 'for successful build' do
-      before do
-        build.update(status: 'success')
-      end
-
-      it 'creates a new build' do
-        is_expected.to be_pending
-        is_expected.not_to eq(build)
-      end
-    end
-  end
-
-  describe '#when' do
-    subject { build.when }
-
-    context 'when `when` is undefined' do
-      before do
-        build.when = nil
-      end
-
-      context 'use from gitlab-ci.yml' do
-        before do
-          stub_ci_pipeline_yaml_file(config)
-        end
-
-        context 'when config is not found' do
-          let(:config) { nil }
-
-          it { is_expected.to eq('on_success') }
-        end
-
-        context 'when config does not have a questioned job' do
-          let(:config) do
-            YAML.dump({
-                        test_other: {
-                          script: 'Hello World'
-                        }
-                      })
-          end
-
-          it { is_expected.to eq('on_success') }
-        end
-
-        context 'when config has when' do
-          let(:config) do
-            YAML.dump({
-                        test: {
-                          script: 'Hello World',
-                          when: 'always'
-                        }
-                      })
-          end
-
-          it { is_expected.to eq('always') }
-        end
-      end
-    end
-  end
-
-  describe '#retryable?' do
-    context 'when build is running' do
-      before { build.run! }
-
-      it 'returns false' do
-        expect(build).not_to be_retryable
-      end
-    end
-
-    context 'when build is finished' do
-      before do
-        build.success!
-      end
-
-      it 'returns true' do
-        expect(build).to be_retryable
-      end
-    end
-  end
-
-  describe '#has_environment?' do
-    subject { build.has_environment? }
-
-    context 'when environment is defined' do
-      before do
-        build.update(environment: 'review')
-      end
-
-      it { is_expected.to be_truthy }
-    end
-
-    context 'when environment is not defined' do
-      before do
-        build.update(environment: nil)
-      end
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#starts_environment?' do
-    subject { build.starts_environment? }
-
-    context 'when environment is defined' do
-      before do
-        build.update(environment: 'review')
-      end
-
-      context 'no action is defined' do
-        it { is_expected.to be_truthy }
-      end
-
-      context 'and start action is defined' do
-        before do
-          build.update(options: { environment: { action: 'start' } } )
-        end
-
-        it { is_expected.to be_truthy }
-      end
-    end
-
-    context 'when environment is not defined' do
-      before do
-        build.update(environment: nil)
-      end
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#stops_environment?' do
-    subject { build.stops_environment? }
-
-    context 'when environment is defined' do
-      before do
-        build.update(environment: 'review')
-      end
-
-      context 'no action is defined' do
-        it { is_expected.to be_falsey }
-      end
-
-      context 'and stop action is defined' do
-        before do
-          build.update(options: { environment: { action: 'stop' } } )
-        end
-
-        it { is_expected.to be_truthy }
-      end
-    end
-
-    context 'when environment is not defined' do
-      before do
-        build.update(environment: nil)
-      end
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#last_deployment' do
-    subject { build.last_deployment }
-
-    context 'when multiple deployments are created' do
-      let!(:deployment1) { create(:deployment, deployable: build) }
-      let!(:deployment2) { create(:deployment, deployable: build) }
-
-      it 'returns the latest one' do
-        is_expected.to eq(deployment2)
-      end
-    end
-  end
-
-  describe '#outdated_deployment?' do
-    subject { build.outdated_deployment? }
-
-    context 'when build succeeded' do
-      let(:build) { create(:ci_build, :success) }
-      let!(:deployment) { create(:deployment, deployable: build) }
-
-      context 'current deployment is latest' do
-        it { is_expected.to be_falsey }
-      end
-
-      context 'current deployment is not latest on environment' do
-        let!(:deployment2) { create(:deployment, environment: deployment.environment) }
-
-        it { is_expected.to be_truthy }
-      end
-    end
-
-    context 'when build failed' do
-      let(:build) { create(:ci_build, :failed) }
-
-      it { is_expected.to be_falsey }
-    end
-  end
-
-  describe '#expanded_environment_name' do
-    subject { build.expanded_environment_name }
-
-    context 'when environment uses $CI_BUILD_REF_NAME' do
-      let(:build) do
-        create(:ci_build,
-               ref: 'master',
-               environment: 'review/$CI_BUILD_REF_NAME')
-      end
-
-      it { is_expected.to eq('review/master') }
-    end
-
-    context 'when environment uses yaml_variables containing symbol keys' do
-      let(:build) do
-        create(:ci_build,
-               yaml_variables: [{ key: :APP_HOST, value: 'host' }],
-               environment: 'review/$APP_HOST')
-      end
-
-      it { is_expected.to eq('review/host') }
-    end
-  end
-
-  describe '#detailed_status' do
-    let(:user) { create(:user) }
-
-    it 'returns a detailed status' do
-      expect(build.detailed_status(user))
-        .to be_a Gitlab::Ci::Status::Build::Cancelable
-    end
-  end
 end
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index 7e1d1126b97..9e4c13bde71 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -1,14 +1,963 @@
 require 'spec_helper'
 
-describe Ci::Build, models: true do
-  let(:build) { create(:ci_build) }
+describe Ci::Build, :models do
+  let(:project) { create(:project) }
+  let(:build) { create(:ci_build, pipeline: pipeline) }
   let(:test_trace) { 'This is a test' }
 
+  let(:pipeline) do
+    create(:ci_pipeline, project: project,
+                         sha: project.commit.id,
+                         ref: project.default_branch,
+                         status: 'success')
+  end
+
   it { is_expected.to belong_to(:runner) }
   it { is_expected.to belong_to(:trigger_request) }
   it { is_expected.to belong_to(:erased_by) }
-
   it { is_expected.to have_many(:deployments) }
+  it { is_expected.to validate_presence_of :ref }
+  it { is_expected.to respond_to :trace_html }
+
+  describe '#any_runners_online?' do
+    subject { build.any_runners_online? }
+
+    context 'when no runners' do
+      it { is_expected.to be_falsey }
+    end
+
+    context 'when there are runners' do
+      let(:runner) { create(:ci_runner) }
+
+      before do
+        build.project.runners << runner
+        runner.update_attributes(contacted_at: 1.second.ago)
+      end
+
+      it { is_expected.to be_truthy }
+
+      it 'that is inactive' do
+        runner.update_attributes(active: false)
+        is_expected.to be_falsey
+      end
+
+      it 'that is not online' do
+        runner.update_attributes(contacted_at: nil)
+        is_expected.to be_falsey
+      end
+
+      it 'that cannot handle build' do
+        expect_any_instance_of(Ci::Runner).to receive(:can_pick?).and_return(false)
+        is_expected.to be_falsey
+      end
+    end
+  end
+
+  describe '#append_trace' do
+    subject { build.trace_html }
+
+    context 'when build.trace hides runners token' do
+      let(:token) { 'my_secret_token' }
+
+      before do
+        build.project.update(runners_token: token)
+        build.append_trace(token, 0)
+      end
+
+      it { is_expected.not_to include(token) }
+    end
+
+    context 'when build.trace hides build token' do
+      let(:token) { 'my_secret_token' }
+
+      before do
+        build.update(token: token)
+        build.append_trace(token, 0)
+      end
+
+      it { is_expected.not_to include(token) }
+    end
+  end
+
+  describe '#artifacts?' do
+    subject { build.artifacts? }
+
+    context 'artifacts archive does not exist' do
+      before do
+        build.update_attributes(artifacts_file: nil)
+      end
+
+      it { is_expected.to be_falsy }
+    end
+
+    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_truthy }
+    end
+
+    context 'is not expired' do
+      before { build.update(artifacts_expire_at: Time.now + 7.days)  }
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#artifacts_metadata?' do
+    subject { build.artifacts_metadata? }
+    context 'artifacts metadata does not exist' do
+      it { is_expected.to be_falsy }
+    end
+
+    context 'artifacts archive is a zip file and metadata exists' do
+      let(:build) { create(:ci_build, :artifacts) }
+      it { is_expected.to be_truthy }
+    end
+  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' }.to raise_error(ChronicDuration::DurationParseError)
+      is_expected.to be_nil
+    end
+
+    it 'when resseting value' do
+      build.artifacts_expire_in = nil
+
+      is_expected.to be_nil
+    end
+  end
+
+  describe '#commit' do
+    it 'returns commit pipeline has been created for' do
+      expect(build.commit).to eq project.commit
+    end
+  end
+
+  describe '#create_from' do
+    before do
+      build.status = 'success'
+      build.save
+    end
+    let(:create_from_build) { Ci::Build.create_from build }
+
+    it 'exists a pending task' do
+      expect(Ci::Build.pending.count(:all)).to eq 0
+      create_from_build
+      expect(Ci::Build.pending.count(:all)).to be > 0
+    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') }
+    let!(:rubocop_test) { create(:ci_build, pipeline: pipeline, name: 'rubocop', stage_idx: 1, stage: 'test') }
+    let!(:staging) { create(:ci_build, pipeline: pipeline, name: 'staging', stage_idx: 2, stage: 'deploy') }
+
+    it 'expects to have no dependents if this is first build' do
+      expect(build.depends_on_builds).to be_empty
+    end
+
+    it 'expects to have one dependent if this is test' do
+      expect(rspec_test.depends_on_builds.map(&:id)).to contain_exactly(build.id)
+    end
+
+    it 'expects to have all builds from build and test stage if this is last' do
+      expect(staging.depends_on_builds.map(&:id)).to contain_exactly(build.id, rspec_test.id, rubocop_test.id)
+    end
+
+    it 'expects to have retried builds instead the original ones' do
+      retried_rspec = Ci::Build.retry(rspec_test)
+      expect(staging.depends_on_builds.map(&:id)).to contain_exactly(build.id, retried_rspec.id, rubocop_test.id)
+    end
+  end
+
+  describe '#detailed_status' do
+    let(:user) { create(:user) }
+
+    it 'returns a detailed status' do
+      expect(build.detailed_status(user))
+        .to be_a Gitlab::Ci::Status::Build::Cancelable
+    end
+  end
+
+  describe 'deployment' do
+    describe '#last_deployment' do
+      subject { build.last_deployment }
+
+      context 'when multiple deployments are created' do
+        let!(:deployment1) { create(:deployment, deployable: build) }
+        let!(:deployment2) { create(:deployment, deployable: build) }
+
+        it 'returns the latest one' do
+          is_expected.to eq(deployment2)
+        end
+      end
+    end
+
+    describe '#outdated_deployment?' do
+      subject { build.outdated_deployment? }
+
+      context 'when build succeeded' do
+        let(:build) { create(:ci_build, :success) }
+        let!(:deployment) { create(:deployment, deployable: build) }
+
+        context 'current deployment is latest' do
+          it { is_expected.to be_falsey }
+        end
+
+        context 'current deployment is not latest on environment' do
+          let!(:deployment2) { create(:deployment, environment: deployment.environment) }
+
+          it { is_expected.to be_truthy }
+        end
+      end
+
+      context 'when build failed' do
+        let(:build) { create(:ci_build, :failed) }
+
+        it { is_expected.to be_falsey }
+      end
+    end
+  end
+
+  describe 'environment' do
+    describe '#has_environment?' do
+      subject { build.has_environment? }
+
+      context 'when environment is defined' do
+        before do
+          build.update(environment: 'review')
+        end
+
+        it { is_expected.to be_truthy }
+      end
+
+      context 'when environment is not defined' do
+        before do
+          build.update(environment: nil)
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+
+    describe '#expanded_environment_name' do
+      subject { build.expanded_environment_name }
+
+      context 'when environment uses $CI_BUILD_REF_NAME' do
+        let(:build) do
+          create(:ci_build,
+                 ref: 'master',
+                 environment: 'review/$CI_BUILD_REF_NAME')
+        end
+
+        it { is_expected.to eq('review/master') }
+      end
+
+      context 'when environment uses yaml_variables containing symbol keys' do
+        let(:build) do
+          create(:ci_build,
+                 yaml_variables: [{ key: :APP_HOST, value: 'host' }],
+                 environment: 'review/$APP_HOST')
+        end
+
+        it { is_expected.to eq('review/host') }
+      end
+    end
+
+    describe '#starts_environment?' do
+      subject { build.starts_environment? }
+
+      context 'when environment is defined' do
+        before do
+          build.update(environment: 'review')
+        end
+
+        context 'no action is defined' do
+          it { is_expected.to be_truthy }
+        end
+
+        context 'and start action is defined' do
+          before do
+            build.update(options: { environment: { action: 'start' } } )
+          end
+
+          it { is_expected.to be_truthy }
+        end
+      end
+
+      context 'when environment is not defined' do
+        before do
+          build.update(environment: nil)
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+
+    describe '#stops_environment?' do
+      subject { build.stops_environment? }
+
+      context 'when environment is defined' do
+        before do
+          build.update(environment: 'review')
+        end
+
+        context 'no action is defined' do
+          it { is_expected.to be_falsey }
+        end
+
+        context 'and stop action is defined' do
+          before do
+            build.update(options: { environment: { action: 'stop' } } )
+          end
+
+          it { is_expected.to be_truthy }
+        end
+      end
+
+      context 'when environment is not defined' do
+        before do
+          build.update(environment: nil)
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+  end
+
+  describe 'erasable build' do
+    shared_examples 'erasable' do
+      it 'removes artifact file' do
+        expect(build.artifacts_file.exists?).to be_falsy
+      end
+
+      it 'removes artifact metadata file' do
+        expect(build.artifacts_metadata.exists?).to be_falsy
+      end
+
+      it 'erases build trace in trace file' do
+        expect(build.trace).to be_empty
+      end
+
+      it 'sets erased to true' do
+        expect(build.erased?).to be true
+      end
+
+      it 'sets erase date' do
+        expect(build.erased_at).not_to be_falsy
+      end
+    end
+
+    context 'build is not erasable' do
+      let!(:build) { create(:ci_build) }
+
+      describe '#erase' do
+        subject { build.erase }
+
+        it { is_expected.to be false }
+      end
+
+      describe '#erasable?' do
+        subject { build.erasable? }
+        it { is_expected.to eq false }
+      end
+    end
+
+    context 'build is erasable' do
+      let!(:build) { create(:ci_build, :trace, :success, :artifacts) }
+
+      describe '#erase' do
+        before do
+          build.erase(erased_by: user)
+        end
+
+        context 'erased by user' do
+          let!(:user) { create(:user, username: 'eraser') }
+
+          include_examples 'erasable'
+
+          it 'records user who erased a build' do
+            expect(build.erased_by).to eq user
+          end
+        end
+
+        context 'erased by system' do
+          let(:user) { nil }
+
+          include_examples 'erasable'
+
+          it 'does not set user who erased a build' do
+            expect(build.erased_by).to be_nil
+          end
+        end
+      end
+
+      describe '#erasable?' do
+        subject { build.erasable? }
+        it { is_expected.to be_truthy }
+      end
+
+      describe '#erased?' do
+        let!(:build) { create(:ci_build, :trace, :success, :artifacts) }
+        subject { build.erased? }
+
+        context 'build has not been erased' do
+          it { is_expected.to be_falsey }
+        end
+
+        context 'build has been erased' do
+          before do
+            build.erase
+          end
+
+          it { is_expected.to be_truthy }
+        end
+      end
+
+      context 'metadata and build trace are not available' do
+        let!(:build) { create(:ci_build, :success, :artifacts) }
+
+        before do
+          build.remove_artifacts_metadata!
+        end
+
+        describe '#erase' do
+          it 'does not raise error' do
+            expect { build.erase }.not_to raise_error
+          end
+        end
+      end
+    end
+  end
+
+  describe '#extract_coverage' do
+    context 'valid content & regex' do
+      subject { build.extract_coverage('Coverage 1033 / 1051 LOC (98.29%) covered', '\(\d+.\d+\%\) covered') }
+
+      it { is_expected.to eq(98.29) }
+    end
+
+    context 'valid content & bad regex' do
+      subject { build.extract_coverage('Coverage 1033 / 1051 LOC (98.29%) covered', 'very covered') }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'no coverage content & regex' do
+      subject { build.extract_coverage('No coverage for today :sad:', '\(\d+.\d+\%\) covered') }
+
+      it { is_expected.to be_nil }
+    end
+
+    context 'multiple results in content & regex' do
+      subject { build.extract_coverage(' (98.39%) covered. (98.29%) covered', '\(\d+.\d+\%\) covered') }
+
+      it { is_expected.to eq(98.29) }
+    end
+
+    context 'using a regex capture' do
+      subject { build.extract_coverage('TOTAL      9926   3489    65%', 'TOTAL\s+\d+\s+\d+\s+(\d{1,3}\%)') }
+
+      it { is_expected.to eq(65) }
+    end
+  end
+
+  describe '#first_pending' do
+    let!(:first) { create(:ci_build, pipeline: pipeline, status: 'pending', created_at: Date.yesterday) }
+    let!(:second) { create(:ci_build, pipeline: pipeline, status: 'pending') }
+    subject { Ci::Build.first_pending }
+
+    it { is_expected.to be_a(Ci::Build) }
+    it('returns with the first pending build') { is_expected.to eq(first) }
+  end
+
+  describe '#failed_but_allowed?' do
+    subject { build.failed_but_allowed? }
+
+    context 'when build is not allowed to fail' do
+      before do
+        build.allow_failure = false
+      end
+
+      context 'and build.status is success' do
+        before do
+          build.status = 'success'
+        end
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'and build.status is failed' do
+        before do
+          build.status = 'failed'
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+
+    context 'when build is allowed to fail' do
+      before do
+        build.allow_failure = true
+      end
+
+      context 'and build.status is success' do
+        before do
+          build.status = 'success'
+        end
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'and build.status is failed' do
+        before do
+          build.status = 'failed'
+        end
+
+        it { is_expected.to be_truthy }
+      end
+    end
+  end
+
+  describe 'flags' do
+    describe '#cancelable?' do
+      subject { build }
+
+      context 'when build is cancelable' do
+        context 'when build is pending' do
+          it { is_expected.to be_cancelable }
+        end
+
+        context 'when build is running' do
+          before do
+            build.run!
+          end
+
+          it { is_expected.to be_cancelable }
+        end
+      end
+
+      context 'when build is not cancelable' do
+        context 'when build is successful' do
+          before do
+            build.success!
+          end
+
+          it { is_expected.not_to be_cancelable }
+        end
+
+        context 'when build is failed' do
+          before do
+            build.drop!
+          end
+
+          it { is_expected.not_to be_cancelable }
+        end
+      end
+    end
+
+    describe '#retryable?' do
+      subject { build }
+
+      context 'when build is retryable' do
+        context 'when build is successful' do
+          before do
+            build.success!
+          end
+
+          it { is_expected.to be_retryable }
+        end
+
+        context 'when build is failed' do
+          before do
+            build.drop!
+          end
+
+          it { is_expected.to be_retryable }
+        end
+
+        context 'when build is canceled' do
+          before do
+            build.cancel!
+          end
+
+          it { is_expected.to be_retryable }
+        end
+      end
+
+      context 'when build is not retryable' do
+        context 'when build is running' do
+          before do
+            build.run!
+          end
+
+          it { is_expected.not_to be_retryable }
+        end
+
+        context 'when build is skipped' do
+          before do
+            build.skip!
+          end
+
+          it { is_expected.not_to be_retryable }
+        end
+      end
+    end
+
+    describe '#manual?' do
+      before do
+        build.update(when: value)
+      end
+
+      subject { build.manual? }
+
+      context 'when is set to manual' do
+        let(:value) { 'manual' }
+
+        it { is_expected.to be_truthy }
+      end
+
+      context 'when set to something else' do
+        let(:value) { 'something else' }
+
+        it { is_expected.to be_falsey }
+      end
+    end
+  end
+
+  describe '#has_tags?' do
+    context 'when build has tags' do
+      subject { create(:ci_build, tag_list: ['tag']) }
+      it { is_expected.to have_tags }
+    end
+
+    context 'when build does not have tags' do
+      subject { create(:ci_build, tag_list: []) }
+      it { is_expected.not_to have_tags }
+    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 '#merge_request' do
+    def create_mr(build, pipeline, factory: :merge_request, created_at: Time.now)
+      create(factory, source_project_id: pipeline.gl_project_id,
+                      target_project_id: pipeline.gl_project_id,
+                      source_branch: build.ref,
+                      created_at: created_at)
+    end
+
+    context 'when a MR has a reference to the pipeline' do
+      before do
+        @merge_request = create_mr(build, pipeline, factory: :merge_request)
+
+        commits = [double(id: pipeline.sha)]
+        allow(@merge_request).to receive(:commits).and_return(commits)
+        allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request])
+      end
+
+      it 'returns the single associated MR' do
+        expect(build.merge_request.id).to eq(@merge_request.id)
+      end
+    end
+
+    context 'when there is not a MR referencing the pipeline' do
+      it 'returns nil' do
+        expect(build.merge_request).to be_nil
+      end
+    end
+
+    context 'when more than one MR have a reference to the pipeline' do
+      before do
+        @merge_request = create_mr(build, pipeline, factory: :merge_request)
+        @merge_request.close!
+        @merge_request2 = create_mr(build, pipeline, factory: :merge_request)
+
+        commits = [double(id: pipeline.sha)]
+        allow(@merge_request).to receive(:commits).and_return(commits)
+        allow(@merge_request2).to receive(:commits).and_return(commits)
+        allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request, @merge_request2])
+      end
+
+      it 'returns the first MR' do
+        expect(build.merge_request.id).to eq(@merge_request.id)
+      end
+    end
+
+    context 'when a Build is created after the MR' do
+      before do
+        @merge_request = create_mr(build, pipeline, factory: :merge_request_with_diffs)
+        pipeline2 = create(:ci_pipeline, project: project)
+        @build2 = create(:ci_build, pipeline: pipeline2)
+
+        allow(@merge_request).to receive(:commits_sha).
+          and_return([pipeline.sha, pipeline2.sha])
+        allow(MergeRequest).to receive_message_chain(:includes, :where, :reorder).and_return([@merge_request])
+      end
+
+      it 'returns the current MR' do
+        expect(@build2.merge_request.id).to eq(@merge_request.id)
+      end
+    end
+  end
+
+  describe '#options' do
+    let(:options) do
+      {
+        image: "ruby:2.1",
+        services: [
+          "postgres"
+        ]
+      }
+    end
+
+    it 'contains options' do
+      expect(build.options).to eq(options)
+    end
+  end
+
+  describe '#other_actions' do
+    let(:build) { create(:ci_build, :manual, pipeline: pipeline) }
+    let!(:other_build) { create(:ci_build, :manual, pipeline: pipeline, name: 'other action') }
+
+    subject { build.other_actions }
+
+    it 'returns other actions' do
+      is_expected.to contain_exactly(other_build)
+    end
+
+    context 'when build is retried' do
+      let!(:new_build) { Ci::Build.retry(build) }
+
+      it 'does not return any of them' do
+        is_expected.not_to include(build, new_build)
+      end
+    end
+
+    context 'when other build is retried' do
+      let!(:retried_build) { Ci::Build.retry(other_build) }
+
+      it 'returns a retried build' do
+        is_expected.to contain_exactly(retried_build)
+      end
+    end
+  end
+
+  describe '#persisted_environment' do
+    before do
+      @environment = create(:environment, project: project, name: "foo-#{project.default_branch}")
+    end
+
+    subject { build.persisted_environment }
+
+    context 'referenced literally' do
+      let(:build) { create(:ci_build, pipeline: pipeline, environment: "foo-#{project.default_branch}") }
+
+      it { is_expected.to eq(@environment) }
+    end
+
+    context 'referenced with a variable' do
+      let(:build) { create(:ci_build, pipeline: pipeline, environment: "foo-$CI_BUILD_REF_NAME") }
+
+      it { is_expected.to eq(@environment) }
+    end
+  end
+
+  describe '#play' do
+    let(:build) { create(:ci_build, :manual, pipeline: pipeline) }
+
+    subject { build.play }
+
+    it 'enqueues a build' do
+      is_expected.to be_pending
+      is_expected.to eq(build)
+    end
+
+    context 'for successful build' do
+      before do
+        build.update(status: 'success')
+      end
+
+      it 'creates a new build' do
+        is_expected.to be_pending
+        is_expected.not_to eq(build)
+      end
+    end
+  end
+
+  describe 'project settings' do
+    describe '#timeout' do
+      it 'returns project timeout configuration' do
+        expect(build.timeout).to eq(project.build_timeout)
+      end
+    end
+
+
+    describe '#allow_git_fetch' do
+      it 'return project allow_git_fetch configuration' do
+        expect(build.allow_git_fetch).to eq(project.build_allow_git_fetch)
+      end
+    end
+  end
+
+  describe '#project' do
+    subject { build.project }
+
+    it { is_expected.to eq(pipeline.project) }
+  end
+
+  describe '#project_id' do
+    subject { build.project_id }
+
+    it { is_expected.to eq(pipeline.project_id) }
+  end
+
+  describe '#project_name' do
+    subject { build.project_name }
+
+    it { is_expected.to eq(project.name) }
+  end
+
+  describe '#raw_trace' do
+    subject { build.raw_trace }
+
+    context 'when build.trace hides runners token' do
+      let(:token) { 'my_secret_token' }
+
+      before do
+        build.project.update(runners_token: token)
+        build.update(trace: token)
+      end
+
+      it { is_expected.not_to include(token) }
+    end
+
+    context 'when build.trace hides build token' do
+      let(:token) { 'my_secret_token' }
+
+      before do
+        build.update(token: token)
+        build.update(trace: token)
+      end
+
+      it { is_expected.not_to include(token) }
+    end
+  end
+
+  describe '#ref_slug' do
+    {
+      'master'    => 'master',
+      '1-foo'     => '1-foo',
+      'fix/1-foo' => 'fix-1-foo',
+      'fix-1-foo' => 'fix-1-foo',
+      'a' * 63    => 'a' * 63,
+      'a' * 64    => 'a' * 63,
+      'FOO'       => 'foo',
+    }.each do |ref, slug|
+      it "transforms #{ref} to #{slug}" do
+        build.ref = ref
+
+        expect(build.ref_slug).to eq(slug)
+      end
+    end
+  end
+
+  describe '#repo_url' do
+    let(:build) { create(:ci_build) }
+    let(:project) { build.project }
+
+    subject { build.repo_url }
+
+    it { is_expected.to be_a(String) }
+    it { is_expected.to end_with(".git") }
+    it { is_expected.to start_with(project.web_url[0..6]) }
+    it { is_expected.to include(build.token) }
+    it { is_expected.to include('gitlab-ci-token') }
+    it { is_expected.to include(project.web_url[7..-1]) }
+  end
+
+  describe '#stuck?' do
+    subject { build.stuck? }
+
+    context "when commit_status.status is pending" do
+      before do
+        build.status = 'pending'
+      end
+
+      it { is_expected.to be_truthy }
+
+      context "and there are specific runner" do
+        let(:runner) { create(:ci_runner, contacted_at: 1.second.ago) }
+
+        before do
+          build.project.runners << runner
+          runner.save
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+
+    %w[success failed canceled running].each do |state|
+      context "when commit_status.status is #{state}" do
+        before do
+          build.status = state
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+  end
 
   describe '#trace' do
     it 'obfuscates project runners token' do
@@ -24,6 +973,45 @@ describe Ci::Build, models: true do
 
       expect(build.trace).to eq(test_trace)
     end
+
+    context 'when build does not have trace' do
+      it 'is is empty' do
+        expect(build.trace).to be_nil
+      end
+    end
+
+    context 'when trace contains text' do
+      let(:text) { 'example output' }
+      before do
+        build.trace = text
+      end
+
+      it { expect(build.trace).to eq(text) }
+    end
+
+    context 'when trace hides runners token' do
+      let(:token) { 'my_secret_token' }
+
+      before do
+        build.update(trace: token)
+        build.project.update(runners_token: token)
+      end
+
+      it { expect(build.trace).not_to include(token) }
+      it { expect(build.raw_trace).to include(token) }
+    end
+
+    context 'when build.trace hides build token' do
+      let(:token) { 'my_secret_token' }
+
+      before do
+        build.update(trace: token)
+        build.update(token: token)
+      end
+
+      it { expect(build.trace).not_to include(token) }
+      it { expect(build.raw_trace).to include(token) }
+    end
   end
 
   describe '#has_trace_file?' do
@@ -111,4 +1099,289 @@ describe Ci::Build, models: true do
       build.destroy
     end
   end
+
+  describe '#when' do
+    subject { build.when }
+
+    context 'when `when` is undefined' do
+      before do
+        build.when = nil
+      end
+
+      context 'use from gitlab-ci.yml' do
+        before do
+          stub_ci_pipeline_yaml_file(config)
+        end
+
+        context 'when config is not found' do
+          let(:config) { nil }
+
+          it { is_expected.to eq('on_success') }
+        end
+
+        context 'when config does not have a questioned job' do
+          let(:config) do
+            YAML.dump({
+                        test_other: {
+                          script: 'Hello World'
+                        }
+                      })
+          end
+
+          it { is_expected.to eq('on_success') }
+        end
+
+        context 'when config has `when`' do
+          let(:config) do
+            YAML.dump({
+                        test: {
+                          script: 'Hello World',
+                          when: 'always'
+                        }
+                      })
+          end
+
+          it { is_expected.to eq('always') }
+        end
+      end
+    end
+  end
+
+  describe '#variables' do
+    let(:container_registry_enabled) { false }
+    let(:predefined_variables) do
+      [
+        { key: 'CI', value: 'true', public: true },
+        { key: 'GITLAB_CI', value: 'true', public: true },
+        { key: 'CI_BUILD_ID', value: build.id.to_s, public: true },
+        { key: 'CI_BUILD_TOKEN', value: build.token, public: false },
+        { key: 'CI_BUILD_REF', value: build.sha, public: true },
+        { key: 'CI_BUILD_BEFORE_SHA', value: build.before_sha, public: true },
+        { key: 'CI_BUILD_REF_NAME', value: 'master', public: true },
+        { key: 'CI_BUILD_REF_SLUG', value: 'master', public: true },
+        { key: 'CI_BUILD_NAME', value: 'test', public: true },
+        { key: 'CI_BUILD_STAGE', value: 'test', public: true },
+        { key: 'CI_SERVER_NAME', value: 'GitLab', public: true },
+        { key: 'CI_SERVER_VERSION', value: Gitlab::VERSION, public: true },
+        { key: 'CI_SERVER_REVISION', value: Gitlab::REVISION, public: true },
+        { key: 'CI_PROJECT_ID', value: project.id.to_s, public: true },
+        { key: 'CI_PROJECT_NAME', value: project.path, public: true },
+        { key: 'CI_PROJECT_PATH', value: project.path_with_namespace, public: true },
+        { key: 'CI_PROJECT_NAMESPACE', value: project.namespace.path, public: true },
+        { key: 'CI_PROJECT_URL', value: project.web_url, public: true },
+        { key: 'CI_PIPELINE_ID', value: pipeline.id.to_s, public: true }
+      ]
+    end
+
+    before do
+      stub_container_registry_config(enabled: container_registry_enabled, host_port: 'registry.example.com')
+    end
+
+    subject { build.variables }
+
+    context 'returns variables' do
+      before do
+        build.yaml_variables = []
+      end
+
+      it { is_expected.to eq(predefined_variables) }
+    end
+
+    context 'when build has user' do
+      let(:user) { create(:user, username: 'starter') }
+      let(:user_variables) do
+        [
+          { key: 'GITLAB_USER_ID',    value: user.id.to_s, public: true },
+          { key: 'GITLAB_USER_EMAIL', value: user.email,   public: true }
+        ]
+      end
+
+      before do
+        build.update_attributes(user: user)
+      end
+
+      it { user_variables.each { |v| is_expected.to include(v) } }
+    end
+
+    context 'when build has an environment' do
+      before do
+        build.update(environment: 'production')
+        create(:environment, project: build.project, name: 'production', slug: 'prod-slug')
+      end
+
+      let(:environment_variables) do
+        [
+          { key: 'CI_ENVIRONMENT_NAME', value: 'production', public: true },
+          { key: 'CI_ENVIRONMENT_SLUG', value: 'prod-slug',  public: true }
+        ]
+      end
+
+      it { environment_variables.each { |v| is_expected.to include(v) } }
+    end
+
+    context 'when build started manually' do
+      before do
+        build.update_attributes(when: :manual)
+      end
+
+      let(:manual_variable) do
+        { key: 'CI_BUILD_MANUAL', value: 'true', public: true }
+      end
+
+      it { is_expected.to include(manual_variable) }
+    end
+
+    context 'when build is for tag' do
+      let(:tag_variable) do
+        { key: 'CI_BUILD_TAG', value: 'master', public: true }
+      end
+
+      before do
+        build.update_attributes(tag: true)
+      end
+
+      it { is_expected.to include(tag_variable) }
+    end
+
+    context 'when secure variable is defined' do
+      let(:secure_variable) do
+        { key: 'SECRET_KEY', value: 'secret_value', public: false }
+      end
+
+      before do
+        build.project.variables << Ci::Variable.new(key: 'SECRET_KEY', value: 'secret_value')
+      end
+
+      it { is_expected.to include(secure_variable) }
+    end
+
+    context 'when build is for triggers' do
+      let(:trigger) { create(:ci_trigger, project: project) }
+      let(:trigger_request) { create(:ci_trigger_request_with_variables, pipeline: pipeline, trigger: trigger) }
+      let(:user_trigger_variable) do
+        { key: :TRIGGER_KEY_1, value: 'TRIGGER_VALUE_1', public: false }
+      end
+      let(:predefined_trigger_variable) do
+        { key: 'CI_BUILD_TRIGGERED', value: 'true', public: true }
+      end
+
+      before do
+        build.trigger_request = trigger_request
+      end
+
+      it { is_expected.to include(user_trigger_variable) }
+      it { is_expected.to include(predefined_trigger_variable) }
+    end
+
+    context 'when yaml_variables are undefined' do
+      before do
+        build.yaml_variables = nil
+      end
+
+      context 'use from gitlab-ci.yml' do
+        before do
+          stub_ci_pipeline_yaml_file(config)
+        end
+
+        context 'when config is not found' do
+          let(:config) { nil }
+
+          it { is_expected.to eq(predefined_variables) }
+        end
+
+        context 'when config does not have a questioned job' do
+          let(:config) do
+            YAML.dump({
+              test_other: {
+                script: 'Hello World'
+              }
+            })
+          end
+
+          it { is_expected.to eq(predefined_variables) }
+        end
+
+        context 'when config has variables' do
+          let(:config) do
+            YAML.dump({
+              test: {
+                script: 'Hello World',
+                variables: {
+                  KEY: 'value'
+                }
+              }
+            })
+          end
+          let(:variables) do
+            [{ key: 'KEY', value: 'value', public: true }]
+          end
+
+          it { is_expected.to eq(predefined_variables + variables) }
+        end
+      end
+    end
+
+    context 'when container registry is enabled' do
+      let(:container_registry_enabled) { true }
+      let(:ci_registry) do
+        { key: 'CI_REGISTRY',  value: 'registry.example.com',  public: true }
+      end
+      let(:ci_registry_image) do
+        { key: 'CI_REGISTRY_IMAGE',  value: project.container_registry_repository_url, public: true }
+      end
+
+      context 'and is disabled for project' do
+        before do
+          project.update(container_registry_enabled: false)
+        end
+
+        it { is_expected.to include(ci_registry) }
+        it { is_expected.not_to include(ci_registry_image) }
+      end
+
+      context 'and is enabled for project' do
+        before do
+          project.update(container_registry_enabled: true)
+        end
+
+        it { is_expected.to include(ci_registry) }
+        it { is_expected.to include(ci_registry_image) }
+      end
+    end
+
+    context 'when runner is assigned to build' do
+      let(:runner) { create(:ci_runner, description: 'description', tag_list: ['docker', 'linux']) }
+
+      before do
+        build.update(runner: runner)
+      end
+
+      it { is_expected.to include({ key: 'CI_RUNNER_ID', value: runner.id.to_s, public: true }) }
+      it { is_expected.to include({ key: 'CI_RUNNER_DESCRIPTION', value: 'description', public: true }) }
+      it { is_expected.to include({ key: 'CI_RUNNER_TAGS', value: 'docker, linux', public: true }) }
+    end
+
+    context 'when build is for a deployment' do
+      let(:deployment_variable) { { key: 'KUBERNETES_TOKEN', value: 'TOKEN', public: false } }
+
+      before do
+        build.environment = 'production'
+        allow(project).to receive(:deployment_variables).and_return([deployment_variable])
+      end
+
+      it { is_expected.to include(deployment_variable) }
+    end
+
+    context 'returns variables in valid order' do
+      before do
+        allow(build).to receive(:predefined_variables) { ['predefined'] }
+        allow(project).to receive(:predefined_variables) { ['project'] }
+        allow(pipeline).to receive(:predefined_variables) { ['pipeline'] }
+        allow(build).to receive(:yaml_variables) { ['yaml'] }
+        allow(project).to receive(:secret_variables) { ['secret'] }
+      end
+
+      it { is_expected.to eq(%w[predefined project pipeline yaml secret]) }
+    end
+  end
 end