adds more comprehensive specs

spec/models/proposal_spec.rb

@@ -657,6 +657,31 @@ describe Proposal do
       expect(Proposal.for_summary.values.flatten).to_not include(proposal)
     end
 
+    it "should return proposals created this week" do
+      create(:tag, kind: 'category', name: 'Culture')
+      proposal = create(:proposal, tag_list: 'Culture')
+      expect(Proposal.for_summary.values.flatten).to include(proposal)
+    end
+
+    it "should not return proposals created more than a week ago" do
+      create(:tag, kind: 'category', name: 'Culture')
+      proposal = create(:proposal, tag_list: 'Culture', created_at: 8.days.ago)
+      expect(Proposal.for_summary.values.flatten).to_not include(proposal)
+    end
+
+    it "should order by votes" do
+      create(:tag, kind: 'category', name: 'Culture')
+      create(:proposal,  tag_list: 'Culture').update_column(:confidence_score, 2)
+      create(:proposal, tag_list: 'Culture').update_column(:confidence_score, 10)
+      create(:proposal, tag_list: 'Culture').update_column(:confidence_score, 5)
+
+      results = Proposal.for_summary.values.flatten
+
+      expect(results.first.confidence_score).to  be(10)
+      expect(results.second.confidence_score).to be(5)
+      expect(results.third.confidence_score).to  be(2)
+    end
+
     it "should return proposals grouped by tag" do
       create(:tag, kind: 'category', name: 'Culture')
       create(:tag, kind: 'category', name: 'Health')