Add StatsController#thirty_days_flow_hash

spec/controllers/stats_controller_spec.rb

@@ -0,0 +1,26 @@
+require 'spec_helper'
+
+describe StatsController, type: :controller do
+  describe '#thirty_days_flow_hash' do
+    before do
+      FactoryGirl.create(:procedure, :created_at => 45.days.ago)
+      FactoryGirl.create(:procedure, :created_at => 15.days.ago)
+      FactoryGirl.create(:procedure, :created_at => 1.day.ago)
+
+      @expected_hash = {}
+      (15.days.ago.to_date..1.day.ago.to_date).each do |day|
+        if [15.days.ago.to_date, 1.day.ago.to_date].include?(day)
+          @expected_hash[day] = 1
+        else
+          @expected_hash[day] = 0
+        end
+      end
+    end
+
+    let (:association) { Procedure.all }
+
+    subject { StatsController.new.send(:thirty_days_flow_hash, association) }
+
+    it { expect(subject).to eq(@expected_hash) }
+  end
+end