# frozen_string_literal: true require 'spec_helper' RSpec.describe Users::CreditCardValidation do it { is_expected.to belong_to(:user) } it { is_expected.to validate_length_of(:holder_name).is_at_most(50) } it { is_expected.to validate_length_of(:network).is_at_most(32) } it { is_expected.to validate_numericality_of(:last_digits).is_less_than_or_equal_to(9999) } describe '.similar_records' do let(:card_details) do subject.attributes.with_indifferent_access.slice(:expiration_date, :last_digits, :network, :holder_name) end subject!(:credit_card_validation) { create(:credit_card_validation, holder_name: 'Alice') } let!(:match1) { create(:credit_card_validation, card_details) } let!(:match2) { create(:credit_card_validation, card_details.merge(holder_name: 'Bob')) } let!(:non_match1) { create(:credit_card_validation, card_details.merge(last_digits: 9)) } let!(:non_match2) { create(:credit_card_validation, card_details.merge(network: 'unknown')) } let!(:non_match3) do create(:credit_card_validation, card_details.dup.tap { |h| h[:expiration_date] += 1.year }) end it 'returns matches with the same last_digits, expiration and network, ordered by credit_card_validated_at' do expect(subject.similar_records).to eq([match2, match1, subject]) end end end