fix: floor bounty amounts in issue meta titles

app/helpers/issue_meta_tags_helper.rb

@@ -1,15 +1,21 @@
 module IssueMetaTagsHelper
   def title_helper(issue)
     if issue.bounty_total > 0
-      "#{number_to_currency(issue.bounty_total, precision: 0)} Bounty on #{issue.tracker.name}"
+      "#{whole_dollar_currency(issue.bounty_total)} Bounty on #{issue.tracker.name}"
     elsif issue.bounty_total == 0 && !issue.paid_out
       "Post a bounty on #{issue.tracker.name}!"
     elsif issue.paid_out
       #assumes there is only one paid_out bounty_claim for this issue
-      "A #{number_to_currency(issue.bounty_claims.collected.first.amount.to_i, precision: 0)} Bounty has been paid out for #{issue.tracker.name}"
+      "A #{whole_dollar_currency(issue.bounty_claims.collected.first.amount)} Bounty has been paid out for #{issue.tracker.name}"
     else
       #shouldn't occur, but just in case
       "Check out this issue on Bountysource!"
     end
   end
+
+  private
+
+  def whole_dollar_currency(amount)
+    number_to_currency(amount.floor, precision: 0)
+  end
 end

spec/helpers/issue_meta_tags_helper_spec.rb

@@ -0,0 +1,29 @@
+require 'rails_helper'
+
+RSpec.describe IssueMetaTagsHelper, type: :helper do
+  describe '#title_helper' do
+    let(:tracker) { double(name: 'Example Tracker') }
+
+    it 'floors fractional open bounty totals instead of rounding up' do
+      issue = double(
+        bounty_total: BigDecimal('5.50'),
+        tracker: tracker,
+        paid_out: false
+      )
+
+      expect(helper.title_helper(issue)).to eq('$5 Bounty on Example Tracker')
+    end
+
+    it 'floors fractional paid bounty amounts instead of rounding up' do
+      bounty_claim = double(amount: BigDecimal('5.50'))
+      issue = double(
+        bounty_total: BigDecimal('0'),
+        tracker: tracker,
+        paid_out: true,
+        bounty_claims: double(collected: double(first: bounty_claim))
+      )
+
+      expect(helper.title_helper(issue)).to eq('A $5 Bounty has been paid out for Example Tracker')
+    end
+  end
+end