Multiple expect invocations inside a single test example

subscriptions_spec.rb

require 'active_support/all'

class Subscription
  def initialize(created_at:)
    @created_at = created_at
  end
  attr_reader :created_at

  def months_subscribed
    ((Date.today - created_at.to_date) / 30).round
  end
end

describe "#months_subscribed" do
  it "should compute the correct number of rounded months" do
    test_vector = [[0,0], [10,0], [14,0], [15, 1], [16,1], [32,1], [44,1], [46,2]]
    test_vector.each do |test_case|
      subscription = Subscription.new(created_at: test_case[0].days.ago)
      expect(subscription.months_subscribed).to eq test_case[1]
    end
  end
end

Oops ... I forgot to freeze with Timecop. Left as an exercise for the reader. :)