1 files changed, 18 insertions, 0 deletions
diff --git a/spec/models/users/credit_card_validation_spec.rb b/spec/models/users/credit_card_validation_spec.rb
index fb9f6e35038..d2b4f5ebd65 100644
--- a/spec/models/users/credit_card_validation_spec.rb
+++ b/spec/models/users/credit_card_validation_spec.rb
@@ -4,4 +4,22 @@ 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(26) }
+  it { is_expected.to validate_numericality_of(:last_digits).is_less_than_or_equal_to(9999) }
+
+  describe '.similar_records' do
+    let(:card_details) { subject.attributes.slice(:expiration_date, :last_digits, :holder_name) }
+
+    subject(:credit_card_validation) { create(:credit_card_validation) }
+
+    let!(:match1) { create(:credit_card_validation, card_details) }
+    let!(:other1) { create(:credit_card_validation, card_details.merge(last_digits: 9)) }
+    let!(:match2) { create(:credit_card_validation, card_details) }
+    let!(:other2) { create(:credit_card_validation, card_details.merge(holder_name: 'foo bar')) }
+
+    it 'returns records with matching credit card, ordered by credit_card_validated_at' do
+      expect(subject.similar_records).to eq([match2, match1, subject])
+    end
+  end
 end