require 'spec_helper'

describe Environment, models: true do
  let(:environment) { create(:environment) }

  it { is_expected.to belong_to(:project) }
  it { is_expected.to have_many(:deployments) }

  it { is_expected.to delegate_method(:last_deployment).to(:deployments).as(:last) }

  it { is_expected.to validate_presence_of(:name) }
  it { is_expected.to validate_uniqueness_of(:name).scoped_to(:project_id) }
  it { is_expected.to validate_length_of(:name).is_within(0..255) }

  it { is_expected.to validate_length_of(:external_url).is_within(0..255) }

  # To circumvent a not null violation of the name column:
  # https://github.com/thoughtbot/shoulda-matchers/issues/336
  it 'validates uniqueness of :external_url' do
    create(:environment)

    is_expected.to validate_uniqueness_of(:external_url).scoped_to(:project_id)
  end

  describe '#nullify_external_url' do
    it 'replaces a blank url with nil' do
      env = build(:environment, external_url: "")

      expect(env.save).to be true
      expect(env.external_url).to be_nil
    end
  end

  describe '#deployed_from?' do
    let(:environment) { create(:environment) }

    context 'without a last deployment' do
      it "returns false" do
        expect(environment.deployed_from?('HEAD')).to be false
      end
    end
  end
end