1 files changed, 19 insertions, 0 deletions
diff --git a/spec/models/issue_spec.rb b/spec/models/issue_spec.rb
index 969d897e551..a3e245f4def 100644
--- a/spec/models/issue_spec.rb
+++ b/spec/models/issue_spec.rb
@@ -1258,4 +1258,23 @@ RSpec.describe Issue do
       expect { issue.issue_type_supports?(:unkown_feature) }.to raise_error(ArgumentError)
     end
   end
+
+  describe '#email_participants_emails' do
+    let_it_be(:issue) { create(:issue) }
+
+    it 'returns a list of emails' do
+      participant1 = issue.issue_email_participants.create(email: 'a@gitlab.com')
+      participant2 = issue.issue_email_participants.create(email: 'b@gitlab.com')
+
+      expect(issue.email_participants_emails).to contain_exactly(participant1.email, participant2.email)
+    end
+  end
+
+  describe '#email_participants_downcase' do
+    it 'returns a list of emails with all uppercase letters replaced with their lowercase counterparts' do
+      participant = create(:issue_email_participant, email: 'SomEoNe@ExamPLe.com')
+
+      expect(participant.issue.email_participants_emails_downcase).to match([participant.email.downcase])
+    end
+  end
 end