1 files changed, 21 insertions, 5 deletions
diff --git a/spec/workers/email_receiver_worker_spec.rb b/spec/workers/email_receiver_worker_spec.rb
index fe70501eeac..e4e77c667b3 100644
--- a/spec/workers/email_receiver_worker_spec.rb
+++ b/spec/workers/email_receiver_worker_spec.rb
@@ -1,6 +1,6 @@
 require "spec_helper"
 
-describe EmailReceiverWorker do
+describe EmailReceiverWorker, :mailer do
   let(:raw_message) { fixture_file('emails/valid_reply.eml') }
 
   context "when reply by email is enabled" do
@@ -17,12 +17,16 @@ describe EmailReceiverWorker do
 
     context "when an error occurs" do
       before do
-        allow_any_instance_of(Gitlab::Email::Receiver).to receive(:execute).and_raise(Gitlab::Email::EmptyEmailError)
+        allow_any_instance_of(Gitlab::Email::Receiver).to receive(:execute).and_raise(error)
       end
 
-      it "sends out a rejection email" do
-        perform_enqueued_jobs do
-          described_class.new.perform(raw_message)
+      context 'when the error is Gitlab::Email::EmptyEmailError' do
+        let(:error) { Gitlab::Email::EmptyEmailError }
+
+        it 'sends out a rejection email' do
+          perform_enqueued_jobs do
+            described_class.new.perform(raw_message)
+          end
 
           email = ActionMailer::Base.deliveries.last
           expect(email).not_to be_nil
@@ -30,6 +34,18 @@ describe EmailReceiverWorker do
           expect(email.subject).to include("Rejected")
         end
       end
+
+      context 'when the error is Gitlab::Email::AutoGeneratedEmailError' do
+        let(:error) { Gitlab::Email::AutoGeneratedEmailError }
+
+        it 'does not send out any rejection email' do
+          perform_enqueued_jobs do
+            described_class.new.perform(raw_message)
+          end
+
+          should_not_email_anyone
+        end
+      end
     end
   end