Address minor review comments for tests

spec/services/issues/update_service_spec.rb

@@ -331,7 +331,7 @@ describe Issues::UpdateService, services: true do
           perform_enqueued_jobs { update_issue(title: user4.to_reference) }
         end
 
-        it "should email only the newly-mentioned user" do
+        it 'emails only the newly-mentioned user' do
           should_not_email(user)
           should_not_email(user2)
           should_not_email(user3)
@@ -339,12 +339,12 @@ describe Issues::UpdateService, services: true do
         end
       end
 
-      context "in description" do
+      context 'in description' do
         before do
           perform_enqueued_jobs { update_issue(description: user4.to_reference) }
         end
 
-        it "should email only the newly-mentioned user" do
+        it 'emails only the newly-mentioned user' do
           should_not_email(user)
           should_not_email(user2)
           should_not_email(user3)

spec/services/merge_requests/update_service_spec.rb

@@ -232,12 +232,12 @@ describe MergeRequests::UpdateService, services: true do
         project.team << [user4, :developer]
       end
 
-      context "in title" do
+      context 'in title' do
         before do
           perform_enqueued_jobs { update_merge_request(title: user4.to_reference) }
         end
 
-        it "should email only the newly-mentioned user" do
+        it 'emails only the newly-mentioned user' do
           should_not_email(user)
           should_not_email(user2)
           should_not_email(user3)
@@ -245,12 +245,12 @@ describe MergeRequests::UpdateService, services: true do
         end
       end
 
-      context "in description" do
+      context 'in description' do
         before do
           perform_enqueued_jobs { update_merge_request(description: user4.to_reference) }
         end
 
-        it "should email only the newly-mentioned user" do
+        it 'emails only the newly-mentioned user' do
           should_not_email(user)
           should_not_email(user2)
           should_not_email(user3)

spec/services/notification_service_spec.rb

@@ -405,12 +405,12 @@ describe NotificationService, services: true do
         notification.new_mentions_in_issue(issue, new_mentions, @u_disabled)
       end
 
-      it "should not email anyone unless they are newly mentioned" do
+      it 'sends no emails when no new mentions are present' do
         send_notifications
-        expect(ActionMailer::Base.deliveries).to eq []
+        expect(ActionMailer::Base.deliveries).to be_empty
       end
 
-      it "should email new mentions with a watch level higher than participant" do
+      it 'emails new mentions with a watch level higher than participant' do
         send_notifications(@u_watcher, @u_participant_mentioned, @u_custom_global)
 
         should_email(@u_watcher)
@@ -420,9 +420,9 @@ describe NotificationService, services: true do
         expect(ActionMailer::Base.deliveries.count).to eq 3
       end
 
-      it "should not email new mentions with a watch level equal to or less than participant" do
+      it 'does not email new mentions with a watch level equal to or less than participant' do
         send_notifications(@u_participating, @u_mentioned)
-        expect(ActionMailer::Base.deliveries).to eq []
+        expect(ActionMailer::Base.deliveries).to be_empty
       end
     end
 
@@ -798,12 +798,12 @@ describe NotificationService, services: true do
         notification.new_mentions_in_merge_request(merge_request, new_mentions, @u_disabled)
       end
 
-      it "should not email anyone unless they are newly mentioned" do
+      it 'sends no emails when there are no new mentions' do
         send_notifications
-        expect(ActionMailer::Base.deliveries).to eq []
+        expect(ActionMailer::Base.deliveries).to be_empty
       end
 
-      it "should email new mentions with a watch level higher than participant" do
+      it 'emails new mentions with a watch level higher than participant' do
         send_notifications(@u_watcher, @u_participant_mentioned, @u_custom_global)
 
         should_email(@u_watcher)
@@ -813,9 +813,9 @@ describe NotificationService, services: true do
         expect(ActionMailer::Base.deliveries.count).to eq 3
       end
 
-      it "should not email new mentions with a watch level equal to or less than participant" do
+      it 'does not email new mentions with a watch level equal to or less than participant' do
         send_notifications(@u_participating, @u_mentioned)
-        expect(ActionMailer::Base.deliveries).to eq []
+        expect(ActionMailer::Base.deliveries).to be_empty
       end
     end