require 'spec_helper'

describe CommitStatus do
  set(:project) { create(:project, :repository) }

  set(:pipeline) do
    create(:ci_pipeline, project: project, sha: project.commit.id)
  end

  let(:commit_status) { create_status(stage: 'test') }

  def create_status(**opts)
    create(:commit_status, pipeline: pipeline, **opts)
  end

  it_behaves_like 'having unique enum values'

  it { is_expected.to belong_to(:pipeline) }
  it { is_expected.to belong_to(:user) }
  it { is_expected.to belong_to(:project) }
  it { is_expected.to belong_to(:auto_canceled_by) }

  it { is_expected.to validate_presence_of(:name) }
  it { is_expected.to validate_inclusion_of(:status).in_array(%w(pending running failed success canceled)) }

  it { is_expected.to delegate_method(:sha).to(:pipeline) }
  it { is_expected.to delegate_method(:short_sha).to(:pipeline) }

  it { is_expected.to respond_to :success? }
  it { is_expected.to respond_to :failed? }
  it { is_expected.to respond_to :running? }
  it { is_expected.to respond_to :pending? }

  describe '#author' do
    subject { commit_status.author }

    before do
      commit_status.author = User.new
    end

    it { is_expected.to eq(commit_status.user) }
  end

  describe 'status state machine' do
    let!(:commit_status) { create(:commit_status, :running, project: project) }

    it 'invalidates the cache after a transition' do
      expect(ExpireJobCacheWorker).to receive(:perform_async).with(commit_status.id)

      commit_status.success!
    end

    describe 'transitioning to running' do
      let(:commit_status) { create(:commit_status, :pending, started_at: nil) }

      it 'records the started at time' do
        commit_status.run!

        expect(commit_status.started_at).to be_present
      end
    end
  end

  describe '#started?' do
    subject { commit_status.started? }

    context 'without started_at' do
      before do
        commit_status.started_at = nil
      end

      it { is_expected.to be_falsey }
    end

    %w[running success failed].each do |status|
      context "if commit status is #{status}" do
        before do
          commit_status.status = status
        end

        it { is_expected.to be_truthy }
      end
    end

    %w[pending canceled].each do |status|
      context "if commit status is #{status}" do
        before do
          commit_status.status = status
        end

        it { is_expected.to be_falsey }
      end
    end
  end

  describe '#active?' do
    subject { commit_status.active? }

    %w[pending running].each do |state|
      context "if commit_status.status is #{state}" do
        before do
          commit_status.status = state
        end

        it { is_expected.to be_truthy }
      end
    end

    %w[success failed canceled].each do |state|
      context "if commit_status.status is #{state}" do
        before do
          commit_status.status = state
        end

        it { is_expected.to be_falsey }
      end
    end
  end

  describe '#complete?' do
    subject { commit_status.complete? }

    %w[success failed canceled].each do |state|
      context "if commit_status.status is #{state}" do
        before do
          commit_status.status = state
        end

        it { is_expected.to be_truthy }
      end
    end

    %w[pending running].each do |state|
      context "if commit_status.status is #{state}" do
        before do
          commit_status.status = state
        end

        it { is_expected.to be_falsey }
      end
    end
  end

  describe '#cancel' do
    subject { job.cancel }

    context 'when status is scheduled' do
      let(:job) { build(:commit_status, :scheduled) }

      it 'updates the status' do
        subject

        expect(job).to be_canceled
      end
    end
  end

  describe '#auto_canceled?' do
    subject { commit_status.auto_canceled? }

    context 'when it is canceled' do
      before do
        commit_status.update(status: 'canceled')
      end

      context 'when there is auto_canceled_by' do
        before do
          commit_status.update(auto_canceled_by: create(:ci_empty_pipeline))
        end

        it 'is auto canceled' do
          is_expected.to be_truthy
        end
      end

      context 'when there is no auto_canceled_by' do
        it 'is not auto canceled' do
          is_expected.to be_falsey
        end
      end
    end
  end

  describe '#duration' do
    subject { commit_status.duration }

    it { is_expected.to eq(120.0) }

    context 'if the building process has not started yet' do
      before do
        commit_status.started_at = nil
        commit_status.finished_at = nil
      end

      it { is_expected.to be_nil }
    end

    context 'if the building process has started' do
      before do
        commit_status.started_at = Time.now - 1.minute
        commit_status.finished_at = nil
      end

      it { is_expected.to be_a(Float) }
      it { is_expected.to be > 0.0 }
    end
  end

  describe '.latest' do
    subject { described_class.latest.order(:id) }

    let(:statuses) do
      [create_status(name: 'aa', ref: 'bb', status: 'running', retried: true),
       create_status(name: 'cc', ref: 'cc', status: 'pending', retried: true),
       create_status(name: 'aa', ref: 'cc', status: 'success', retried: true),
       create_status(name: 'cc', ref: 'bb', status: 'success'),
       create_status(name: 'aa', ref: 'bb', status: 'success')]
    end

    it 'returns unique statuses' do
      is_expected.to eq(statuses.values_at(3, 4))
    end
  end

  describe '.retried' do
    subject { described_class.retried.order(:id) }

    let(:statuses) do
      [create_status(name: 'aa', ref: 'bb', status: 'running', retried: true),
       create_status(name: 'cc', ref: 'cc', status: 'pending', retried: true),
       create_status(name: 'aa', ref: 'cc', status: 'success', retried: true),
       create_status(name: 'cc', ref: 'bb', status: 'success'),
       create_status(name: 'aa', ref: 'bb', status: 'success')]
    end

    it 'returns unique statuses' do
      is_expected.to contain_exactly(*statuses.values_at(0, 1, 2))
    end
  end

  describe '.running_or_pending' do
    subject { described_class.running_or_pending.order(:id) }

    let(:statuses) do
      [create_status(name: 'aa', ref: 'bb', status: 'running'),
       create_status(name: 'cc', ref: 'cc', status: 'pending'),
       create_status(name: 'aa', ref: nil, status: 'success'),
       create_status(name: 'dd', ref: nil, status: 'failed'),
       create_status(name: 'ee', ref: nil, status: 'canceled')]
    end

    it 'returns statuses that are running or pending' do
      is_expected.to contain_exactly(*statuses.values_at(0, 1))
    end
  end

  describe '.after_stage' do
    subject { described_class.after_stage(0) }

    let(:statuses) do
      [create_status(name: 'aa', stage_idx: 0),
       create_status(name: 'cc', stage_idx: 1),
       create_status(name: 'aa', stage_idx: 2)]
    end

    it 'returns statuses from second and third stage' do
      is_expected.to eq(statuses.values_at(1, 2))
    end
  end

  describe '.exclude_ignored' do
    subject { described_class.exclude_ignored.order(:id) }

    let(:statuses) do
      [create_status(when: 'manual', status: 'skipped'),
       create_status(when: 'manual', status: 'success'),
       create_status(when: 'manual', status: 'failed'),
       create_status(when: 'on_failure', status: 'skipped'),
       create_status(when: 'on_failure', status: 'success'),
       create_status(when: 'on_failure', status: 'failed'),
       create_status(allow_failure: true, status: 'success'),
       create_status(allow_failure: true, status: 'failed'),
       create_status(allow_failure: false, status: 'success'),
       create_status(allow_failure: false, status: 'failed'),
       create_status(allow_failure: true, status: 'manual'),
       create_status(allow_failure: false, status: 'manual')]
    end

    it 'returns statuses without what we want to ignore' do
      is_expected.to eq(statuses.values_at(0, 1, 2, 3, 4, 5, 6, 8, 9, 11))
    end
  end

  describe '.failed_but_allowed' do
    subject { described_class.failed_but_allowed.order(:id) }

    let(:statuses) do
      [create_status(allow_failure: true, status: 'success'),
       create_status(allow_failure: true, status: 'failed'),
       create_status(allow_failure: false, status: 'success'),
       create_status(allow_failure: false, status: 'failed'),
       create_status(allow_failure: true, status: 'canceled'),
       create_status(allow_failure: false, status: 'canceled'),
       create_status(allow_failure: true, status: 'manual'),
       create_status(allow_failure: false, status: 'manual')]
    end

    it 'returns statuses without what we want to ignore' do
      is_expected.to eq(statuses.values_at(1, 4))
    end
  end

  describe '.status' do
    context 'when there are multiple statuses present' do
      before do
        create_status(status: 'running')
        create_status(status: 'success')
        create_status(allow_failure: true, status: 'failed')
      end

      it 'returns a correct compound status' do
        expect(described_class.all.status).to eq 'running'
      end
    end

    context 'when there are only allowed to fail commit statuses present' do
      before do
        create_status(allow_failure: true, status: 'failed')
      end

      it 'returns status that indicates success' do
        expect(described_class.all.status).to eq 'success'
      end
    end

    context 'when using a scope to select latest statuses' do
      before do
        create_status(name: 'test', retried: true, status: 'failed')
        create_status(allow_failure: true, name: 'test', status: 'failed')
      end

      it 'returns status according to the scope' do
        expect(described_class.latest.status).to eq 'success'
      end
    end
  end

  describe '#before_sha' do
    subject { commit_status.before_sha }

    context 'when no before_sha is set for pipeline' do
      before do
        pipeline.before_sha = nil
      end

      it 'returns blank sha' do
        is_expected.to eq(Gitlab::Git::BLANK_SHA)
      end
    end

    context 'for before_sha set for pipeline' do
      let(:value) { '1234' }

      before do
        pipeline.before_sha = value
      end

      it 'returns the set value' do
        is_expected.to eq(value)
      end
    end
  end

  describe '#commit' do
    it 'returns commit pipeline has been created for' do
      expect(commit_status.commit).to eq project.commit
    end
  end

  describe '#group_name' do
    subject { commit_status.group_name }

    tests = {
      'rspec:windows' => 'rspec:windows',
      'rspec:windows 0' => 'rspec:windows 0',
      'rspec:windows 0 test' => 'rspec:windows 0 test',
      'rspec:windows 0 1' => 'rspec:windows',
      'rspec:windows 0 1 name' => 'rspec:windows name',
      'rspec:windows 0/1' => 'rspec:windows',
      'rspec:windows 0/1 name' => 'rspec:windows name',
      'rspec:windows 0:1' => 'rspec:windows',
      'rspec:windows 0:1 name' => 'rspec:windows name',
      'rspec:windows 10000 20000' => 'rspec:windows',
      'rspec:windows 0 : / 1' => 'rspec:windows',
      'rspec:windows 0 : / 1 name' => 'rspec:windows name',
      '0 1 name ruby' => 'name ruby',
      '0 :/ 1 name ruby' => 'name ruby'
    }

    tests.each do |name, group_name|
      it "'#{name}' puts in '#{group_name}'" do
        commit_status.name = name

        is_expected.to eq(group_name)
      end
    end
  end

  describe '#detailed_status' do
    let(:user) { create(:user) }

    it 'returns a detailed status' do
      expect(commit_status.detailed_status(user))
        .to be_a Gitlab::Ci::Status::Success
    end
  end

  describe '#sortable_name' do
    tests = {
      'karma' => ['karma'],
      'karma 0 20' => ['karma ', 0, ' ', 20],
      'karma 10 20' => ['karma ', 10, ' ', 20],
      'karma 50:100' => ['karma ', 50, ':', 100],
      'karma 1.10' => ['karma ', 1, '.', 10],
      'karma 1.5.1' => ['karma ', 1, '.', 5, '.', 1],
      'karma 1 a' => ['karma ', 1, ' a']
    }

    tests.each do |name, sortable_name|
      it "'#{name}' sorts as '#{sortable_name}'" do
        commit_status.name = name
        expect(commit_status.sortable_name).to eq(sortable_name)
      end
    end
  end

  describe '#locking_enabled?' do
    before do
      commit_status.lock_version = 100
    end

    subject { commit_status.locking_enabled? }

    context "when changing status" do
      before do
        commit_status.status = "running"
      end

      it "lock" do
        is_expected.to be true
      end

      it "raise exception when trying to update" do
        expect { commit_status.save }.to raise_error(ActiveRecord::StaleObjectError)
      end
    end

    context "when changing description" do
      before do
        commit_status.description = "test"
      end

      it "do not lock" do
        is_expected.to be false
      end

      it "save correctly" do
        expect(commit_status.save).to be true
      end
    end
  end

  describe 'set failure_reason when drop' do
    let(:commit_status) { create(:commit_status, :created) }

    subject do
      commit_status.drop!(reason)
      commit_status
    end

    context 'when failure_reason is nil' do
      let(:reason) { }

      it { is_expected.to be_unknown_failure }
    end

    context 'when failure_reason is script_failure' do
      let(:reason) { :script_failure }

      it { is_expected.to be_script_failure }
    end

    context 'when failure_reason is unmet_prerequisites' do
      let(:reason) { :unmet_prerequisites }

      it { is_expected.to be_unmet_prerequisites }
    end
  end

  describe 'ensure stage assignment' do
    context 'when commit status has a stage_id assigned' do
      let!(:stage) do
        create(:ci_stage_entity, project: project, pipeline: pipeline)
      end

      let(:commit_status) do
        create(:commit_status, stage_id: stage.id, name: 'rspec', stage: 'test')
      end

      it 'does not create a new stage' do
        expect { commit_status }.not_to change { Ci::Stage.count }
        expect(commit_status.stage_id).to eq stage.id
      end
    end

    context 'when commit status does not have a stage_id assigned' do
      let(:commit_status) do
        create(:commit_status, name: 'rspec', stage: 'test', status: :success)
      end

      let(:stage) { Ci::Stage.first }

      it 'creates a new stage' do
        expect { commit_status }.to change { Ci::Stage.count }.by(1)

        expect(stage.name).to eq 'test'
        expect(stage.project).to eq commit_status.project
        expect(stage.pipeline).to eq commit_status.pipeline
        expect(stage.status).to eq commit_status.status
        expect(commit_status.stage_id).to eq stage.id
      end
    end

    context 'when commit status does not have stage but it exists' do
      let!(:stage) do
        create(:ci_stage_entity, project: project,
                                 pipeline: pipeline,
                                 name: 'test')
      end

      let(:commit_status) do
        create(:commit_status, project: project,
                               pipeline: pipeline,
                               name: 'rspec',
                               stage: 'test',
                               status: :success)
      end

      it 'uses existing stage' do
        expect { commit_status }.not_to change { Ci::Stage.count }

        expect(commit_status.stage_id).to eq stage.id
        expect(stage.reload.status).to eq commit_status.status
      end
    end

    context 'when commit status is being imported' do
      let(:commit_status) do
        create(:commit_status, name: 'rspec', stage: 'test', importing: true)
      end

      it 'does not create a new stage' do
        expect { commit_status }.not_to change { Ci::Stage.count }
        expect(commit_status.stage_id).not_to be_present
      end
    end
  end

  describe '#enqueue' do
    let!(:current_time) { Time.new(2018, 4, 5, 14, 0, 0) }

    before do
      allow(Time).to receive(:now).and_return(current_time)
      expect(commit_status.any_unmet_prerequisites?).to eq false
    end

    shared_examples 'commit status enqueued' do
      it 'sets queued_at value when enqueued' do
        expect { commit_status.enqueue }.to change { commit_status.reload.queued_at }.from(nil).to(current_time)
      end
    end

    context 'when initial state is :created' do
      let(:commit_status) { create(:commit_status, :created) }

      it_behaves_like 'commit status enqueued'
    end

    context 'when initial state is :preparing' do
      let(:commit_status) { create(:commit_status, :preparing) }

      it_behaves_like 'commit status enqueued'
    end

    context 'when initial state is :skipped' do
      let(:commit_status) { create(:commit_status, :skipped) }

      it_behaves_like 'commit status enqueued'
    end

    context 'when initial state is :manual' do
      let(:commit_status) { create(:commit_status, :manual) }

      it_behaves_like 'commit status enqueued'
    end

    context 'when initial state is :scheduled' do
      let(:commit_status) { create(:commit_status, :scheduled) }

      it_behaves_like 'commit status enqueued'
    end
  end

  describe '#present' do
    subject { commit_status.present }

    it { is_expected.to be_a(CommitStatusPresenter) }
  end
end