created first version of court_dates_helper test

spec/factories/casa_cases.rb

@@ -68,4 +68,10 @@
       create(:court_date, casa_case: casa_case, date: Date.tomorrow)
     end
   end
+
+  trait :with_past_court_date do
+    after(:create) do |casa_case|
+      create(:court_date, casa_case: casa_case, date: Date.yesterday)
+    end
+  end
 end

spec/helpers/court_dates_helper_spec.rb

@@ -0,0 +1,23 @@
+require "rails_helper"
+
+RSpec.describe CourtDatesHelper do
+  describe "#when_do_we_have_court_dates" do
+    describe 'when casa case has only dates in the past' do
+      let(:casa_case) { create(:casa_case, :with_past_court_date) }
+
+      it "returns 'past'" do
+        expect(helper.when_do_we_have_court_dates(casa_case)).to eq('past')
+      end
+    end
+
+    describe 'when casa case only has dates in the future' do
+      let(:casa_case) { create(:casa_case, :with_upcoming_court_date) }
+
+      it "returns 'future'" do
+        expect(helper.when_do_we_have_court_dates(casa_case)).to eq('future')
+      end
+    end
+
+    it "returns nothing if the last court date is in the future and the first is in the past" do; end
+  end
+end