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path: root/spec/services/ci/create_pipeline_service/parent_child_pipeline_spec.rb
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# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Ci::CreatePipelineService, '#execute' do
  let_it_be(:project) { create(:project, :repository) }
  let_it_be(:user) { create(:user) }
  let(:ref_name) { 'master' }

  let(:service) do
    params = { ref: ref_name,
               before: '00000000',
               after: project.commit.id,
               commits: [{ message: 'some commit' }] }

    described_class.new(project, user, params)
  end

  before do
    project.add_developer(user)
    stub_ci_pipeline_yaml_file(config)
  end

  shared_examples 'successful creation' do
    it 'creates bridge jobs correctly' do
      pipeline = create_pipeline!

      test = pipeline.statuses.find_by(name: 'test')
      bridge = pipeline.statuses.find_by(name: 'deploy')

      expect(pipeline).to be_persisted
      expect(test).to be_a Ci::Build
      expect(bridge).to be_a Ci::Bridge
      expect(bridge.stage).to eq 'deploy'
      expect(pipeline.statuses).to match_array [test, bridge]
      expect(bridge.options).to eq(expected_bridge_options)
      expect(bridge.yaml_variables)
        .to include(key: 'CROSS', value: 'downstream', public: true)
    end
  end

  shared_examples 'creation failure' do
    it 'returns errors' do
      pipeline = create_pipeline!

      expect(pipeline.errors.full_messages.first).to match(expected_error)
      expect(pipeline.failure_reason).to eq 'config_error'
      expect(pipeline).to be_persisted
      expect(pipeline.status).to eq 'failed'
    end
  end

  describe 'child pipeline triggers' do
    let(:config) do
      <<~YAML
      test:
        script: rspec
      deploy:
        variables:
          CROSS: downstream
        stage: deploy
        trigger:
          include:
            - local: path/to/child.yml
      YAML
    end

    it_behaves_like 'successful creation' do
      let(:expected_bridge_options) do
        {
          'trigger' => {
            'include' => [
              { 'local' => 'path/to/child.yml' }
            ]
          }
        }
      end
    end
  end

  describe 'child pipeline triggers' do
    context 'when YAML is valid' do
      let(:config) do
        <<~YAML
        test:
          script: rspec
        deploy:
          variables:
            CROSS: downstream
          stage: deploy
          trigger:
            include:
              - local: path/to/child.yml
        YAML
      end

      it_behaves_like 'successful creation' do
        let(:expected_bridge_options) do
          {
            'trigger' => {
              'include' => [
                { 'local' => 'path/to/child.yml' }
              ]
            }
          }
        end
      end

      context 'when trigger:include is specified as a string' do
        let(:config) do
          <<~YAML
          test:
            script: rspec
          deploy:
            variables:
              CROSS: downstream
            stage: deploy
            trigger:
              include: path/to/child.yml
          YAML
        end

        it_behaves_like 'successful creation' do
          let(:expected_bridge_options) do
            {
              'trigger' => {
                'include' => 'path/to/child.yml'
              }
            }
          end
        end
      end

      context 'when trigger:include is specified as array of strings' do
        let(:config) do
          <<~YAML
          test:
            script: rspec
          deploy:
            variables:
              CROSS: downstream
            stage: deploy
            trigger:
              include:
                - path/to/child.yml
                - path/to/child2.yml
          YAML
        end

        it_behaves_like 'successful creation' do
          let(:expected_bridge_options) do
            {
              'trigger' => {
                'include' => ['path/to/child.yml', 'path/to/child2.yml']
              }
            }
          end
        end
      end
    end

    context 'when limit of includes is reached' do
      let(:config) do
        YAML.dump({
          test: { script: 'rspec' },
          deploy: {
            trigger: { include: included_files }
          }
        })
      end

      let(:included_files) do
        Array.new(include_max_size + 1) do |index|
          { local: "file#{index}.yml" }
        end
      end

      let(:include_max_size) do
        Gitlab::Ci::Config::Entry::Trigger::ComplexTrigger::SameProjectTrigger::INCLUDE_MAX_SIZE
      end

      it_behaves_like 'creation failure' do
        let(:expected_error) { /trigger:include config is too long/ }
      end
    end

    context 'when including configs from artifact' do
      context 'when specified dependency is in the wrong order' do
        let(:config) do
          <<~YAML
          test:
            trigger:
              include:
                - job: generator
                  artifact: 'generated.yml'
          generator:
            stage: 'deploy'
            script: 'generator'
          YAML
        end

        it_behaves_like 'creation failure' do
          let(:expected_error) { /test job: dependency generator is not defined in prior stages/ }
        end
      end

      context 'when specified dependency is missing :job key' do
        let(:config) do
          <<~YAML
          test:
            trigger:
              include:
                - artifact: 'generated.yml'
          YAML
        end

        it_behaves_like 'creation failure' do
          let(:expected_error) do
            /include config must specify the job where to fetch the artifact from/
          end
        end
      end
    end
  end

  def create_pipeline!
    service.execute(:push)
  end
end