From dd61034908c7ea50f426af4af6376a32cb7573a1 Mon Sep 17 00:00:00 2001
From: Rohan Mitchell <rohan@rohanmitchell.com>
Date: Tue, 13 Jan 2015 14:47:13 +1100
Subject: [PATCH] Fix fractional cents appearing on sales tax report totals

---
 lib/open_food_network/sales_tax_report.rb           | 4 ++++
 spec/lib/open_food_network/sales_tax_report_spec.rb | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/lib/open_food_network/sales_tax_report.rb b/lib/open_food_network/sales_tax_report.rb
index 3920773d06..d5b69011d2 100644
--- a/lib/open_food_network/sales_tax_report.rb
+++ b/lib/open_food_network/sales_tax_report.rb
@@ -42,6 +42,10 @@ module OpenFoodNetwork
         end
       end
 
+      totals.each_pair do |k, v|
+        totals[k] = totals[k].round(2)
+      end
+
       totals
     end
 
diff --git a/spec/lib/open_food_network/sales_tax_report_spec.rb b/spec/lib/open_food_network/sales_tax_report_spec.rb
index cf00f650ff..043eac6ae7 100644
--- a/spec/lib/open_food_network/sales_tax_report_spec.rb
+++ b/spec/lib/open_food_network/sales_tax_report_spec.rb
@@ -21,6 +21,15 @@ module OpenFoodNetwork
         totals[:items_total].should == 36
       end
 
+      context "when floating point math would result in fractional cents" do
+        let(:li1) { double(:line_item, quantity: 1, amount: 0.11) }
+        let(:li2) { double(:line_item, quantity: 2, amount: 0.12) }
+
+        it "rounds to the nearest cent" do
+          totals[:items_total].should == 0.23
+        end
+      end
+
       it "calculates the taxable total price" do
         totals[:taxable_total].should == 36
       end