spec/models/solidus_subscriptions/line_item_spec.rb


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require 'spec_helper'

RSpec.describe SolidusSubscriptions::LineItem, type: :model do
  it { is_expected.to validate_presence_of :subscribable_id }

  it { is_expected.to validate_numericality_of(:quantity).is_greater_than(0) }
  it { is_expected.to validate_numericality_of(:interval_length).is_greater_than(0) }

  describe "#interval" do
    subject { line_item.interval }

    let(:line_item) { create :subscription_line_item, :with_subscription }

    before do
      Timecop.freeze(Date.parse("2016-09-22"))
      line_item.subscription.update!(actionable_date: Date.current)
    end

    after { Timecop.return }

    it { is_expected.to be_a ActiveSupport::Duration }

    it "calculates the duration correctly" do
      expect(subject.from_now).to eq Date.parse("2016-10-22")
    end
  end
end