Add method to calculate order total with tax.

MacKLess · Dec 7, 2017 · 7dd7fc4 · 7dd7fc4
1 parent f41b2c4
commit 7dd7fc4
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Showing 3 changed files with 103 additions and 1 deletion.
diff --git a/app/models/order.rb b/app/models/order.rb
@@ -40,4 +40,9 @@ def remove_inventory
       item.product.update(quantity: item.product.quantity - item.quantity)
     end
   end
+
+  def total_with_tax
+    tax_rate = TaxRate.get_tax_rate
+    (self.price_total * tax_rate) + self.price_total
+  end
 end
diff --git a/...der/_total_with_tax/returns_the_total_price_of_the_order_with_Seattle_sales_tax_added.yml b/...der/_total_with_tax/returns_the_total_price_of_the_order_with_Seattle_sales_tax_added.yml
diff --git a/spec/models/order_spec.rb b/spec/models/order_spec.rb
@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-describe Order do
+describe Order, vcr: true do
   it { should belong_to :account }
   it { should validate_presence_of :account }
   it { should validate_presence_of :price_total }
@@ -68,4 +68,10 @@
     end
   end
 
+  describe '#total_with_tax' do
+    it "returns the total price of the order with Seattle sales tax added" do
+      order_item = FactoryBot.create(:order_item)
+      expect(order_item.order.total_with_tax).to eq(order_item.order.price_total * TaxRate.get_tax_rate + order_item.order.price_total)
+    end
+  end
 end