require 'rails_helper'

describe Clusters::Applications::Knative do
  let(:knative) { create(:clusters_applications_knative) }

  include_examples 'cluster application core specs', :clusters_applications_knative
  include_examples 'cluster application status specs', :clusters_applications_knative
  include_examples 'cluster application helm specs', :clusters_applications_knative

  describe '.installed' do
    subject { described_class.installed }

    let!(:cluster) { create(:clusters_applications_knative, :installed) }

    before do
      create(:clusters_applications_knative, :errored)
    end

    it { is_expected.to contain_exactly(cluster) }
  end

  describe '#make_installing!' do
    before do
      application.make_installing!
    end

    context 'application install previously errored with older version' do
      let(:application) { create(:clusters_applications_knative, :scheduled, version: '0.1.3') }

      it 'updates the application version' do
        expect(application.reload.version).to eq('0.1.3')
      end
    end
  end

  describe '#make_installed' do
    subject { described_class.installed }

    let!(:cluster) { create(:clusters_applications_knative, :installed) }

    before do
      create(:clusters_applications_knative, :errored)
    end

    it { is_expected.to contain_exactly(cluster) }
  end

  describe '#install_command' do
    subject { knative.install_command }

    it 'should be an instance of Helm::InstallCommand' do
      expect(subject).to be_an_instance_of(Gitlab::Kubernetes::Helm::InstallCommand)
    end

    it 'should be initialized with knative arguments' do
      expect(subject.name).to eq('knative')
      expect(subject.chart).to eq('knative/knative')
      expect(subject.version).to eq('0.1.3')
      expect(subject.files).to eq(knative.files)
    end
  end

  describe '#files' do
    let(:application) { knative }
    let(:values) { subject[:'values.yaml'] }

    subject { application.files }

    it 'should include knative specific keys in the values.yaml file' do
      expect(values).to include('domain')
    end
  end

  describe 'validations' do
    it { is_expected.to validate_presence_of(:hostname) }
  end
end