Add spec for pending payments service

spec/services/pending_payments_service_spec.rb

@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+describe PendingPayments do
+  let(:order1) {
+    create(:order_with_totals_and_distribution,
+           completed_at: 1.day.ago, state: "complete",
+           payments: [create(:payment, state: 'checkout')])
+  }
+  let(:order2) {
+    create(:order_with_totals_and_distribution,
+           completed_at: 1.day.ago, state: "complete",
+           payments: [create(:payment, state: 'completed')])
+  }
+
+  describe "#can_be_captured?" do
+    it "responds with a boolean; if an order has payments that can be captured or not" do
+      expect(PendingPayments.new(order1).can_be_captured?).to be_truthy
+      expect(PendingPayments.new(order2).can_be_captured?).to_not be_truthy
+    end
+  end
+
+  describe "#payment_object" do
+    it "returns a capturable payment object if there is one present" do
+      expect(PendingPayments.new(order1).payment_object).to be_a Spree::Payment
+      expect(PendingPayments.new(order2).payment_object).to be_nil
+    end
+  end
+end