Adds traits to enterprise_factory and spec

spec/factories/enterprise_factory.rb

@@ -23,6 +23,14 @@ FactoryBot.define do
     end
   end
 
+  trait :with_logo_image do
+    logo { Rack::Test::UploadedFile.new('spec/fixtures/files/logo.png', 'image/png') }
+  end
+
+  trait :with_promo_image do
+    logo { Rack::Test::UploadedFile.new('spec/fixtures/files/promo.png', 'image/png') }
+  end
+
   factory :supplier_enterprise, parent: :enterprise do
     is_primary_producer { true }
     sells { "none" }

spec/mailers/subscription_mailer_spec.rb

@@ -225,7 +225,7 @@ describe SubscriptionMailer, type: :mailer do
   end
 
   describe "order placement summary" do
-    let!(:shop) { create(:enterprise) }
+    let!(:shop) { create(:enterprise, :with_logo_image) }
     let!(:summary) { double(:summary, shop_id: shop.id) }
     let(:body) { strip_tags(SubscriptionMailer.deliveries.last.body.encoded) }
     let(:scope) { "subscription_mailer" }