Update: Untaken cash payments to void on cancelled order

app/models/spree/order.rb

@@ -665,6 +665,7 @@ module Spree
 
     def after_cancel
       shipments.each(&:cancel!)
+      payments.checkout.each(&:void!)
 
       OrderMailer.cancel_email(id).deliver_later if send_cancellation_email
       update(payment_state: updater.update_payment_state)

engines/order_management/spec/services/order_management/order/updater_spec.rb

@@ -61,7 +61,7 @@ module OrderManagement
           expect(order.shipment_state).to be_nil
         end
 
-        ["shipped", "ready", "pending"].each do |state|
+        ["shipped", "ready", "pending", "canceled"].each do |state|
           it "is #{state}" do
             allow(shipment).to receive(:state).and_return(state)
             updater.update_shipment_state

spec/models/spree/order_spec.rb

@@ -303,6 +303,29 @@ describe Spree::Order do
     end
   end
 
+  describe "#cancel" do
+    let(:order) { create(:order_with_totals_and_distribution, :completed) }
+
+    before { order.cancel! }
+
+    it "should cancel the order" do
+      expect(order.state).to eq 'canceled'
+    end
+
+    it "should cancel the shipments" do
+      expect(order.shipments.pluck(:state)).to eq ['canceled']
+    end
+
+    context "when payment has not been taken" do
+      context "and payment is in checkout state" do
+        it "should change the state of the payment to void" do
+          order.payments.reload
+          expect(order.payments.pluck(:state)).to eq ['void']
+        end
+      end
+    end
+  end
+
   context "insufficient_stock_lines" do
     let(:line_item) { build(:line_item) }