1 files changed, 19 insertions, 0 deletions
diff --git a/spec/helpers/milestones_helper_spec.rb b/spec/helpers/milestones_helper_spec.rb
index 28c2268f8d0..ea744dbb629 100644
--- a/spec/helpers/milestones_helper_spec.rb
+++ b/spec/helpers/milestones_helper_spec.rb
@@ -1,6 +1,25 @@
 require 'spec_helper'
 
 describe MilestonesHelper do
+  describe "#milestone_date_range" do
+    def result_for(*args)
+      milestone_date_range(build(:milestone, *args))
+    end
+
+    let(:yesterday) { Date.yesterday }
+    let(:tomorrow) { yesterday + 2 }
+    let(:format) { '%b %-d, %Y' }
+    let(:yesterday_formatted) { yesterday.strftime(format) }
+    let(:tomorrow_formatted) { tomorrow.strftime(format) }
+
+    it { expect(result_for(due_date: nil, start_date: nil)).to be_nil }
+    it { expect(result_for(due_date: tomorrow)).to eq("expires on #{tomorrow_formatted}") }
+    it { expect(result_for(due_date: yesterday)).to eq("expired on #{yesterday_formatted}") }
+    it { expect(result_for(start_date: tomorrow)).to eq("starts on #{tomorrow_formatted}") }
+    it { expect(result_for(start_date: yesterday)).to eq("started on #{yesterday_formatted}") }
+    it { expect(result_for(start_date: yesterday, due_date: tomorrow)).to eq("#{yesterday_formatted} - #{tomorrow_formatted}") }
+  end
+
   describe '#milestone_counts' do
     let(:project) { FactoryGirl.create(:project) }
     let(:counts) { helper.milestone_counts(project.milestones) }